- dovecot - dovecot.org

Delivering email to Maildir PreINBOX
by Paulo Matos 24 Aug '15

24 Aug '15

Hi all, I have a running dovecot with: $ dovecot -n # 2.2.18: /etc/dovecot/dovecot.conf # OS: Linux 4.1.0-x86_64-linode59 x86_64 Fedora release 22 (Twenty Two) ext4 auth_debug = yes auth_mechanisms = plain login digest-md5 cram-md5 auth_verbose = yes auth_verbose_passwords = yes default_internal_user = root imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_debug = yes mail_location = maildir:/home/vmail/%d/%n/Maildir maildir_very_dirty_syncs = yes mbox_write_locks = fcntl namespace { inbox = yes location = prefix = INBOX. separator = . type = private } namespace inbox { location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } postmaster_address = pmatos protocols = imap quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-master { mode = 0600 user = vmail } user = $default_internal_user } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes driver = static } protocol lda { auth_socket_path = /var/run/dovecot/auth-master deliver_log_format = msgid=%m: %$ log_path = /home/vmail/dovecot-deliver.log } protocol imap { mail_max_userip_connections = 100 } I started to filter my email with imapfilter running on the same host as dovecot. I would therefore like to deliver email to a folder called PreINBOX so that imapfilter then sorts the email and ends up delivering only the useful email to INBOX. How can I change the name of the inbox dovecot delivers to? Best, -- Paulo Matos

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IMAP Folder Mail Separator
by Alex 23 Aug '15

23 Aug '15

Hi, I have a fedora21 install with dovecot-2.2.18, and when creating a new subfolder with thunderbird, the actual folder name is "Folder1^Folder2" with a carat as a separator, instead of creating Folder2 in the Folder1 directory. Is this a thunderbird problem? I don't recall having this problem prior to upgrading to fedora21, so thought maybe it's a dovecot problem. Maybe the separator character is customizable? Thanks, Alex

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migrating servers
by chris 23 Aug '15

23 Aug '15

Hi I am trying to migrate from a Centos dovecot 1.0.7 install to a debian dovecot 2.1.7 install. I thought simply replicating the maildirs would be fine (using rsync) but when I fetch mail from the new server using IMAP thunderbird wants to download all the messages again as duplicates. I searched the wiki over to see if I could find a solution and while it appeared I could use doveadm backup that seems to only work pushing changes from the new server to the old (wrong direction) and that program does not exist on the earlier version of dovecot on the old server. If I can be very blunt the documentation on the wiki assumes far too much knowledge from the reader. It is often hard to decipher exactly what is meant by many of the obtuse instructions. But that is an aside can anyone give me pointers on how to do this migration for all my users so they don't need to sort through hundreds of duplicated emails? Chris

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Delivering email to Maildir PreINBOX
by Paulo Matos 22 Aug '15

22 Aug '15

Hi all, I have a running dovecot with: $ dovecot -n # 2.2.18: /etc/dovecot/dovecot.conf # OS: Linux 4.1.0-x86_64-linode59 x86_64 Fedora release 22 (Twenty Two) ext4 auth_debug = yes auth_mechanisms = plain login digest-md5 cram-md5 auth_verbose = yes auth_verbose_passwords = yes default_internal_user = root imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_debug = yes mail_location = maildir:/home/vmail/%d/%n/Maildir maildir_very_dirty_syncs = yes mbox_write_locks = fcntl namespace { inbox = yes location = prefix = INBOX. separator = . type = private } namespace inbox { location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } postmaster_address = pmatos protocols = imap quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-master { mode = 0600 user = vmail } user = $default_internal_user } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes driver = static } protocol lda { auth_socket_path = /var/run/dovecot/auth-master deliver_log_format = msgid=%m: %$ log_path = /home/vmail/dovecot-deliver.log } protocol imap { mail_max_userip_connections = 100 } I started to filter my email with imapfilter running on the same host as dovecot. I would therefore like to deliver email to a folder called PreINBOX so that imapfilter then sorts the email and ends up delivering only the useful email to INBOX. How can I change the name of the inbox dovecot delivers to? Best, -- Paulo Matos

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Error: User initialization failed
by ＠lbutlr 19 Aug '15

19 Aug '15

OK, I obviously forgot something when setting up new user accounts (which I did via postfix admin to add them to the MySQL database): dovecot: lda(chance(a)example.com): Error: User initialization failed: Namespace '': Ambiguous mail location setting, don't know what to do with it: /usr/local/virtual/chance@ example.com (try prefixing it with mbox: or milder:) I have lots of mysql users defined and working, but do I need to manually create the mail store for new ones? (Sorry, it’s been quite a long time since I had to add accounts). -- You start a conversation you can't even finish it You're talkin' a lot, but you're not sayin' anything When I have nothing to say, my lips are sealed Say something once, why say it again?

2 3

logging into user mailboxes with admin credentials
by Noam Birnbaum 19 Aug '15

19 Aug '15

Hey folks, We are planning a migration away from Dovecot (sorry) to Google Apps and are trying to figure out how to migrate the contents of user mailboxes to the new provider. Normally we would use an IMAP migration tool to log into each user's mailbox on the old and new providers and transfer the data that way. However, there is no central directory service; all accounts are local. We have a large number of users and for both management and security reasons it's not feasible to compile a list of all IMAP passwords. Is there a way to log into user IMAP accounts on Dovecot using a central administrative credential? Thanks! Warmest and bestest, Noam 510-332-3828 cell Noam Birnbaum Mac Daddy http://www.maccentricsolutions.com 877.luv.macs x666 tweet @noamb Tech support ---> 877.luv.macs or support(a)maccentricsolutions.com Luvvv us? _Yelp us!_ <http://www.yelp.com/biz/maccentric-solutions-san-francisco>

2 1

NFSv4 delegation
by brd 18 Aug '15

18 Aug '15

hi all, i'm managing a large installation of a dovecot cluster in director + NFS backend architecture and we are moving from NFSv3 to NFSv4. Our NFS server is a Netapp in clustered mode and reading technical specs of NFSv4 delegation feature it seems that enabling delegation in this type of dovecot architecture should bring great benefits: only one backend server access a specific mailbox at a time (even deliveries are managed by director hashing via LMTP) so the getattr rpc calls should decrease significantly while the risk of conflicting delegations is very low (impacting negatively on the benefits obtainable). Can anyone confirm this hypothesis? I've heard that the linux implementation of NFSv4 delegation is mature only for read delegation (and not yet for write delegation): is this true? And, if true, could this fact limit the benefits of activating NFS delegation feature? Best regards -brd

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pop3-login: Disconnected (tried to use disallowed plaintext auth)
by Benjamin Cimerman 18 Aug '15

18 Aug '15

Hi I have problem with dovecot 2.2.10 - plaintext auth without SSL is not working. I'm upgrading old server and want that settings "stay same" as on old server. SSL has to be optional. /var/log/maillog *pop3-login: Disconnected (tried to use disallowed plaintext auth): user=<>, rip=_._._._, lip=_._._._, session=<cxPkm4Ud5gBb7YZ/>* my settings: [root@mail dovecot]# grep ssl * -R -n *conf.d/10-ssl.conf:8:ssl = yes* *conf.d/10-ssl.conf:40:ssl_verify_client_cert = no* *conf.d/10-auth.conf:90:auth_ssl_require_client_cert = no* *dovecot.conf:7:ssl = yes* [root@mail dovecot]# grep plain * -R -n *conf.d/10-auth.conf:11:disable_plaintext_auth = no* *conf.d/10-auth.conf:101:auth_mechanisms = plain login* Thanx you for any help.

1 0

Segfaults after upgrade to Debian Jessie
by Andrew Beverley 18 Aug '15

18 Aug '15

Hi, I've just upgrade from Debian Wheezy to Debian Jessie and am getting: Fatal: master: service(lmtp): child 6761 killed with signal 11 (core dumped) It seems to be something to do with sieve. When I disable that from lmtp then everything works fine. OS: Debian Jessie Dovecot version: 2.2.13 CPU: x86 This is the gdb output: Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `dovecot/lmtp'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f8e4c94f626 in sieve_validator_register_command () from /usr/lib/dovecot/libdovecot-sieve.so.0 And dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 8.1 ext3 auth_mechanisms = plain login dict { sieve = mysql:/etc/dovecot/pigeonhole-sieve.dict } mail_location = maildir:/var/mail/vhosts/%d/%n mail_privileged_group = mail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave vnd.dovecot.extdata namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { sieve = dict:proxy::sieve;name=active sieve_dir = ~/sieve sieve_extdata_dict_uri = proxy::sieve sieve_plugins = sieve_extdata } protocols = " imap lmtp sieve" service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = dovecot } service dict { unix_listener dict { mode = 0600 user = vmail } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } ssl = required ssl_cert = </etc/ssl/certs/ctrlo.com.pem ssl_key = </etc/ssl/private/ctrlo.com.key userdb { driver = passwd } userdb { args = uid=vmail gid=vmail home=/var/mail/vhosts/%d/%n driver = static } protocol imap { mail_max_userip_connections = 20 } Any ideas? Thanks, Andy

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multiple messages per second to a single mailbox
by Chad M Stewart 18 Aug '15

18 Aug '15

Dovecot 2.2.18 on CentOS 6 I have a pair of servers setup with MySQL, Postfix, and Dovecot. Replication is setup and working between the two dovecot instances. The problem I'm running into is that a single mailbox receives a lot of messages, at times the rate is multiple messages per second. Delivery from Postfix to Dovecot is via tcp based LMTP. When I do 'ps -aef|grep lmtp|wc -l' I get 62 and does not appear to go higher than that. At the moment I have 4500 and 8300 messages queued on two Postfix instances waiting to deliver via LMTP to the same dovecot instance. Deliveries only happen via LMTP and only one of the two nodes actually gets the deliveries. What I'm seeing is very high load on the system (40) and queues building on the Postfix side. Replication is keeping up. Looking at the logs now I see anywhere from 4-7 messages per second delivered to this single mailbox. I would like to increase that rate a lot. These machines are VMs hosted on Xenserver 6.x. I have them setup with 8 vCPUs (2 sockets with 4 cores per socket), the dom0 machines have dual HBA connectors back to a SAN and have 128 CPUs and 256GB of RAM and are not taxed. I added a 2nd virtual disk that is used for storing mailbox data. It is ext4 and has noatime set during mount. /var is also mounted with noatime. The performance graphs in XenCenter show nearly all 8 vCPUs at about 50%, and the writes on the mailbox data disk are about 20%. iostat is showing mostly <5 for await times for the disks, though I do see a 10 now and again. I'm guessing that maybe I'm hitting a mailbox locking issue and not sure how to reduce the contention and thereby increase the delivery rate to this mailbox. -Chad

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Syncing two mail servers?
by Knute Johnson 17 Aug '15

17 Aug '15

I currently have a mail server using Dovecot and sendmail. I was thinking I would like to have a backup of my mail and an additional server in case of hardware failure. Is it possible to run two identical or nearly identical server setups and sync the mail files between them? If it is possible, in general terms how would one go about this? Thanks, -- Knute Johnson

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Re: Duplicate mails with pop3 + dsync replication
by Nikolaos Milas 17 Aug '15

17 Aug '15

On 17/8/2015 2:29 μμ, Wolfgang Hennerbichler wrote: >> I was wondering if the same behavior persists with latest version(s), for example 2.2.18. > I don’t know, I have to deal with the packages that come with my distribution’s repository. > >> >If so, how do you overcome this issue? What is the suggested practice? > All I can say is that it works for me with the above setting and a cron-job that runs every minute which expunges mails for the pop3 users. > Thank you for your reply. I am on CentOS 5 and 6, but I am building RPMs for our test and production servers. I recently built v2.2.18 and I decided to give it a try. (I run it with postfix - also just upgraded to 2.11.6.) The issue seems to not occur any more. I had already tested on two test servers, and I hoped someone could provide independent feedback before I decided to upgrade production servers. However, I now also upgraded our two production servers and things seem to be running smoothly. All the best, Nick

1 0

sieve-filter failure problems
by Jost Krieger 17 Aug '15

17 Aug '15

I use sieve-filter for postprocessing misclassified mail. For false positives I use the following script: require [ "variables", "include", "fileinto" ]; global [ "FORCENOSPAM", "ext", "ext1" ]; set "FORCENOSPAM" "YES"; fileinto "JUNK-PRENOUCE"; if header :matches "Delivered-To" "*+*@*" { set "ext" "${2}"; set "ext1" "${2}"; } include :personal "production"; FORCENOSPAM suppresses the spam handling and the Delivered-To stuff tries to regenerate envelope info. This is my crontab entry: 1-57/4 * * * * cd ~kriegjcb; /usr/local/dovecot/bin/sieve-filter -v -e -W -u kriegjcb -m Spam/U0-failed ~kriegjcb/sieve/nospamfilter.sieve Spam/U0 Most things work fine, but a few of my rules will try to forward mail. This will fail and my idea was I handle this manually from the folder Spam/U0-failed. Unfortunately the mail will arrive there but will also be left in the source folder Spam/U0 and will be processed again every 4 minutes ... This is probably not intentional? Yours Jost Krieger -- | Jost.Krieger+sig(a)ruhr-uni-bochum.de Please help stamp out spam! | | Postmaster, JAPH, resident answer machine at RUB Comp. Center | | Sincere words are not sweet, sweet words are not sincere. | | Lao Tse, Tao Te King 81 |

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Duplicate mails with pop3 + dsync replication
by Wolfgang Hennerbichler 17 Aug '15

17 Aug '15

Hi, When I enable (and it only happens when it is actually running) replication over TCP my users get duplicate mails via pop3. Here’s what happens: * User gets mail * Mail appears in (Maildir) new/ folder on both replicas * user retrieves mail (retr), calls dele. Mail still exists in new/ folder on both replicas. * user runs retr (and gets the duplicate) and dele a second time, the mail is actually removed. If I disable replication this behaviour goes away. I use dovecot from debian stable resources. Any help would _really_ be appreciated. I found one german thread that dealt with the same problem, but no solution for it (http://www.dovecot-buch.de/mailingliste/pop3-fehler-bei-delete-und-dsync-re…) wogri # dovecot --version 2.2.13 # dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.0 ext4 auth_verbose = yes doveadm_password = XXX first_valid_gid = 113 first_valid_uid = 108 last_valid_gid = 113 last_valid_uid = 108 mail_gid = dovecot mail_location = maildir:/var/mail/%n mail_plugins = quota fts fts_lucene virtual notify replication mail_temp_dir = /var/lib/dovecot/tmp mail_uid = dovecot namespace { list = children location = virtual:/var/mail/%n/virtual prefix = virtual. separator = . } namespace inbox { inbox = yes list = yes location = mailbox "Deleted Messages" { auto = subscribe special_use = \Trash } mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } [48/4646] mailbox Trash { special_use = \Trash } prefix = separator = . subscriptions = yes type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { default_language = de fts = lucene fts_lucene = whitespace_chars=@. mail_replica = tcp:172.16.1.1:12345 quota = maildir:User quota quota_rule = *:storage=4G quota_rule2 = Trash:storage=+100M quota_rule3 = Spam:ignore quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = /etc/sieve/%n.sieve sieve_default = /etc/sieve/default.sieve sieve_dir = ~/sieve sieve_extensions = +editheader } postmaster_address = postmaster(a)wogri.at protocols = " imap lmtp pop3" service aggregator { fifo_listener replication-notify-fifo { user = dovecot } unix_listener replication-notify { user = dovecot } } service doveadm { inet_listener { port = 12345 } } service imap { process_limit = 1024 } } service lmtp { inet_listener lmtp { address = 127.0.0.1 port = 2003 } user = dovecot } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 1 } service pop3 { process_limit = 1024 } service quota-warning { executable = script /usr/local/sbin/quota-warning.sh unix_listener quota-warning { user = dovecot } user = dovecot } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 } } ssl = required ssl_cert = </etc/exim4/server.cert.pem ssl_key = </etc/exim4/server.key.pem userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { mail_plugins = quota sieve virtual notify replication } protocol lda { mail_plugins = quota fts fts_lucene virtual notify replication sieve } protocol imap { mail_max_userip_connections = 50 mail_plugins = quota fts fts_lucene virtual notify replication imap_quota }

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sieve and antispam
by Andrew McN 17 Aug '15

17 Aug '15

I have a fairly standard antispam/dspam setup: postfix delivers to dspam, which classifies and tags the mail, and then passes it to postfix which uses sieve to put mail into the appropriate folders based on dspam's classification. I also have the antispam plugin watching mail being moved between folders and re-training dpsam accordingly. If I now add some sieve filter rules which put incoming mail into appropriate folders, possibly overriding what would normally result from dspam's classification, will that be seen by the antispam plugin and used for training dspam? Regards, Andrew McNaughton

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Re: Multidomain / IP Address Setup (Dovevot 2.2.10 on CentOS7 ) is failing: Fatal: Couldn't parse private ssl_key: error:0906D06C:PEM
by Christian Kivalo 16 Aug '15

16 Aug '15

>But can you explain why you use globally: > >ssl_cert = </etc/ssl/dovecot.pem >ssl_key = </etc/ssl/private/dovecot.pem > >and certs for any additional Domain each? > >## >local_name mail.pettijohn-web.com { > ssl_cert = </etc/ssl/mail.pettijohn-web.com.crt > ssl_key = </etc/ssl/private/mail.pettijohn-web.com.key >} >## he configured the top level "default" ssl_{cert,key} as requested by the documentation i may quote myself >from the dovecot ssl wiki page http://wiki2.dovecot.org/SSL/DovecotConfiguration >Multiple SSL certificates >Different certificates per IP and protocol > >[snip] > >Note that you will still need a top-level "default" ssl_key and ssl_cert as well, or you will receive errors. i think, but untested, this default ssl_{cert,key} are used for those clients that don't support SNI (as with apache, which uses the cert of the first site). >I configured it the way you do, but within the default >/etc/dovecot/confd structure but >i had no luck. I testet local_name (SNI), local, local <IPv6> >(dedicated >IPv6 Address but had no lock it should make no difference whether you use one large config file or the conf.d structure. your doveconf -n output would really be helpful regards - c >Configinfo: >1) MTA (Postfix 2.10.1) and MDA (Dovecot 2.2.10) configured on IPv6 >Addresses >2) The MTA and MDA are connected to MariaDB (the default MySQL >replacement on CentOS7 now for virtual domains, users, passwords, >aliaes ect >3) Postfix uses Dovecots SASL Implementation and Postfix and Dovecot >talking via LMTP and UNIX Sockets. > >Details: >### yum info postfix ### >Name : postfix >Arch : x86_64 >Epoche : 2 >Version : 2.10.1 >Release : 6.el7 >Size : 12 M >From : installed > From Source : debian.n-ix.net_centos_7_os_x86_64_ >Summary : Postfix Mail Transport Agent >URL : http://www.postfix.org >License : IBM and GPLv2+ >Description : Postfix is a Mail Transport Agent (MTA), supporting LDAP, > >SMTP AUTH (SASL), TLS > >### yum info dovecot ### >Name : dovecot >Arch : i686 >Epoche : 1 >Version : 2.2.10 >Ausgabe : 4.el7_0.1 >Größe : 3.2 M >Quelle : debian.n-ix.net_centos_7_os_x86_64_ >Summary : Secure imap and pop3 server >URL : http://www.dovecot.org/ >Lizenz : MIT and LGPLv2 >Description : Dovecot is an IMAP server for Linux/UNIX-like systems, >written with security > : primarily in mind. It also contains a small POP3 >server. It supports mail > : in either of maildir or mbox formats. > >Cheers, >Drav

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Multidomain / IP Address Setup (Dovevot 2.2.10 on CentOS7 ) is failing: Fatal: Couldn't parse private ssl_key: error:0906D06C:PEM
by dravion.smith＠gmx.net 16 Aug '15

16 Aug '15

Hi, I want to say hello and here is my big problem ;D Iam trying to archive a Postfix/Dovecot 2.2.10 CentOS7 Multidomain Setup with multiple (valid StartSSL Certs), but iam only able to run a single Domain Cert server only. ps: I need a multiple domainssetup for every customer and it is not an option for me redirecting any email to a single domain server. I really need this setup working. IMHO: I think it SELinux could interfere with multiple Certs in diffrent folders (it is activated in CentOs7 by default and is needed by other apps) Ok, here is my logfile data: systemctl start postfix.service [OK] systemctl start dovecot.service [OK] /var/log/messages *systemd: Stopping Dovecot IMAP/POP3 email server... *systemd: Starting Dovecot IMAP/POP3 email server... *systemd: Started Dovecot IMAP/POP3 email server. /var/log/maillog *dovecot: master: Dovecot v2.2.10 starting up for imap, pop3, lmtp (core dumps disabled) ### This works (Thunderbird, Outlook 2013, Opera Mail ect.) #### local mydomain01.tld { protocol imap { ssl_cert = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.crt.pem ssl_key = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.key.pem } } ### this 10-ssl.conf ### --- FAILS (the error occurs after an email client accesses IMAP Folders) local mydomain01.tld { protocol imap { ssl_cert = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.crt.pem ssl_key = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.key.pem } } local mydomain02.tld { protocol imap { ssl_cert = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.crt.pem ssl_key = </etc/ssl/domains/mydomain.tld/imap/imap.mydomain02.tld.key.pem } } /var/log/mailog ### Error log ### Aug 14 12:50:38 matrix dovecot: imap-login: Fatal: Couldn't parse private ssl_key: error:0906D06C:PEM routines:PEM_read_bio:no start line: Aug 14 12:50:38 matrix dovecot: master: Error: service(imap-login): command startup failed, throttling for 60 secs I really dont know why a single domain is no problem but if i enable multiple domains dovecots start with any error, even if i set debug verbose leven to extrem high but if i access dovecot with Thunderbird my server loggile explodes with something like this Couldn't parse private ssl_key: error:0906D06C:PEM but the certs are 100% valid and checked over and over again. Any help is greatly appreciated! Greetings, Dravion

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ipv4 imap not accepting connections in mixed ipv4/ipv6
by djk 15 Aug '15

15 Aug '15

I have two installations of dovecot 2.18, apart from the necessary changes to allow them to replicate amongst themselves the configs are identical. Both are running Ubuntu 14.04 and are kept up to date. One is running 64bit and the other 32 bit (for historical reasons). Both have ipv4 and ipv6 addresses. The 64 bit installation allows access on port 143 and 993 on both ipv4 and ipv6. The 32 bit installation does not allow access on 143 on ipv4, but allows ipv4/ipv6 on 993. Both installations happily allow connections to any other ports that dovecot might be using on both ipv4/ipv6, as well as everything else that is running (on other ports) on those machines. There are firewalls, but no warning messages. Switching firewalls off makes no difference. Tcpdump shows the SYN packets arriving on the (correct) interface. Any suggestions? Dirk

1 0

IMAP folder separator issue
by Alex 15 Aug '15

15 Aug '15

Hi, I'm using dovecot-2.2.18 on fedora22 and having a problem with Thunderbird. I reported this problem some time ago, and received some tips, but no solution that's worked. I'm now trying to fix this in earnest, and having problems. The problem is sub-folders are created with a caret in them, instead of a new folder below the parent folder. So instead of folder/sub-folder, folder^sub-folder is created. I'm using mbox folders, and it worked under previous versions of fedora and dovecot. I believe it has to do with the separator character that's used, based on this wiki page: http://wiki2.dovecot.org/Plugins/Listescape The problem is that those instructions cause errors: Aug 14 20:00:01 orion dovecot: pop3(cerberus): Error: User initialization failed: namespace configuration error: Duplicate namespace prefix: "" Aug 14 20:00:01 orion dovecot: pop3(cerberus): Error: Invalid user settings. Refer to server log for more information. I've also had to change the "namespace private" to "namespace { type=private }" as that's apparently a deprecated syntax. Perhaps there's an updated page with more instruction and correct information? I'm unsure where this duplicate namespace is that it's talking about... I've included my doveconf output below, in hopes someone can help. I should also point out that "separator = $" is quoted in the original doveconf.conf but apparently doveconf doesn't properly print it. # 2.2.18: /etc/dovecot/dovecot.conf # OS: Linux 4.0.7-300.fc22.x86_64 x86_64 Fedora release 22 (Twenty Two) default_client_limit = 2000 mail_gid = mail mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u mail_plugins = " listescape" mail_privileged_group = mail mbox_write_locks = fcntl namespace { inbox = yes location = prefix = separator = $ type = private } namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } passdb { driver = pam } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 } process_min_avail = 20 service_count = 0 } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { address = 192.168.1.100 port = 995 } } ssl_ca = </etc/pki/dovecot/certs/ca-bundle.pem ssl_cert = </etc/pki/dovecot/certs/orion-2015.pem ssl_key = </etc/pki/dovecot/certs/orion-2015.key userdb { driver = passwd } userdb { driver = passwd }

2 1

backing up email / saving maildir on external hard drives
by Kevin Laurie 15 Aug '15

15 Aug '15

Hello, Yesterday I tried to back up a 40GB maildir . I tried to move the maildir from home to external HDD but failed. Decided then to compress it(which took several hours). Now changing the disk format from FAT to exFAT to allow the transfer for the large compressed file. How does one back up emails on a external drive? Some advice would be greatly appreciated.

7 12

need help debugging deleted mails
by Vu Ngoc VU 13 Aug '15

13 Aug '15

hello, one of our users complained about the fact that he doesn't receive some messages (randomly) that his teamates have. Grepping for the message-ID in the mail.log, I can see lmtp says it is saved : Aug 12 15:23:23 imap-01 dovecot: lmtp(4943, johndoe(a)example.net) fFuCO09Hy1VPEwAA2t/0+w: sieve: vsize= msgid=<037e01d0d502$0e3687d0$2aa39770$(a)example.net>: stored mail into mailbox 'INBOX' The only difference with others recipients is the 'sieve:... stored mail' instead of 'saved mail to' when there is no sieve. But when he asked me, the message was no more in his maildir (I checked with doveadm search). As we have checked and disabled all the filters in his MUA and on the server (sieve) and this issue still continue, I did mkdir a dovecot.rawlog inside his home. With the help of rawlog, I can see that the message can be found in a .out file (by grepping the Message-ID). And by reading this .out log raw log, the entire message were sent to the client. So I guess that : * the message was written to disk * it was sent to the MUA But I need your help because I don't get how this message disappear from his maildir. My assumptions was that the client must do some commands like : * STORE the \Deleted flag to this message UID * and then, later do EXPUNGE but I did : * grep -i expunge * 20150812* => no match * grep -iE '\+flags .*\\deleted' => a few matches but not with the appropriate UID snippet from the 20150812-133858-13317.in file: 8nk1 UID FETCH 208209 (UID FLAGS RFC822.SIZE BODY.PEEK[HEADER] INTERNALDATE) p7uv IDLE DONE 6yk3 NOOP 83g6 IDLE DONE yhbd UID FETCH 208209 (UID FLAGS BODY.PEEK[]) fy16 IDLE DONE snippet from the 20150812-133858-13317.out file: * 56295 FETCH (UID 208209) wn2p OK Fetch completed. * 56295 FETCH (UID 208209 FLAGS (\Deleted \Seen \Recent) RFC822.SIZE 17138 INTERNALDATE "12-Aug-2015 15:23:22 +0200" BODY[HEADER] {2836} Considering these points: * I cannot find any match with 208209 early in raw logs * I don't see any expunge for the whole day * I've grepped for \Deleted (insensitive) and didn't find matching like a interval of messages UID. What did I miss to find out how/when the message got \Deleted flag and was removed from his maildir? A few about my setup : * system is ubuntu 14.04 inside OpenVZ containers (Proxmox) * dovecot version is 2.2.9 from Ubuntu packages * 2 director with Internet and local ip addresses * 2 backends with only local addresses * these dovecot access storage servers by NFSv3 (that's why we have director) * imap/lmtp are proxied Thanks a lot for reading, I'm really disappointed about this problem. For the moment, I'll delete his script even if all rules are disabled (via roundcube, and I checked the rule is commented in the file). And also I'll try to watch what happens with inotify on the storage server.

4 6

backing up IMAP server on a hard drive
by Kevin Laurie 13 Aug '15

13 Aug '15

Hi, I am trying to back up my IMAP server to a hard drive. Later I intend to extract all mails for attachments. What do you reckon is the best too to perform this ? Imapsync or Thunderbird (or something else, please recommend) One problem I am having with imapsync is the setting for host2 (being a localhost computer). How does one set a parameter for host2 being a desktop computer. Thanks Kevin

3 6

Error when reading attachment - one byte overhead?
by Ачилов Рашид Нурмухамед ович 13 Aug '15

13 Aug '15

After converting maildir to mdbox mail periodically obtained these messages: Aug 13 11:22:27 mailsrv dovecot: imap(user-aaa): Error: read(/usr/share/smbusers/user-aaa/mail/attachments/a0/8e/a08e3e63e11aae3f37020bdca0da7d-7b39ab07ea73ba559d450000dec08558[base64:18 b/l]) failed: Stream is larger than expected (434427 > 434426, eof=1) Aug 13 11:22:27 mailsrv dovecot: imap(user-aaa): Error: read(attachments-connector(/usr/share/smbusers/user-aaa/mail/storage/m.23)) failed: read(/usr/share/smbusers/user-aaa/mail/attachments/a0/8e/a08e3e63e11aae3f37020bdca0da7d-7b39ab07ea73ba559d450000dec08558[base64:18 b/l]) failed: Stream is larger than expected (434427 > 434426, eof=1) (FETCH BODY[] for mailbox Разное полезное/Для памяти UID 20) Aug 13 11:22:27 mailsrv dovecot: imap(user-aaa): Disconnected: FETCH read() failed in=16923 out=497431 How to correct it? Conversion was did with 2.2.8 version, next will installed 2.2.18. -- С Уважением. Ачилов Рашид Нурмухамедович (AchilovRN(a)granch.ru) Главный специалист по защите информации ООО НПФ "Гранч", тел: +7 (383) 233-35-12, доб. 107

1 0

SiS does not work
by Ачилов Рашид Нурмухамед ович 13 Aug '15

13 Aug '15

How do you do. I have tried to use SiS to deduplicate attachments in mail storage. Unsuccesful. When goes mail with reasonable size, and SiS try to start, I have receive error, when this mail must be delivered for group of receivers (i.e. through aliases). Below is error log, valuable parts of mail addresses masked by X and Y chars Aug 6 16:11:12 mailsrv dovecot: lmtp(xxxxx): AL1SNrkyw1VPBAAABJcpmA: msgid=<2015080614471325760993(a)chinacoalchem.com> (from zsy(a)chinacoalchem.com) saved mail to INBOX This receiver has received mail. But next one does not. And to receive I must restart _sendmail_ (not dovecot!). I must restart sendmail as many times as there were recipients in envelope. Aug 6 16:11:12 mailsrv dovecot: lmtp(yyyy): Error: read(/usr/share/smbusers/xxxxx/mail/attachments /e4/3d/e43db6e8af6fb1df4a08f9c1f3f31e93e61781c4c1d2395e04dd96a583aa-01bd5236b932c3554f04000004972998[base64 :19 b/l]) failed: Stream is smaller than expected (0 < 4080128) Aug 6 16:11:12 mailsrv dovecot: lmtp(yyyy): Error: read(attachments-connector(/usr/share/smbusers/xxxxx/mail/storage/m.35)) failed: read(/usr/share/smbusers/xxxxx/mail/attachments/e4/3d/e43db6e8af6f b1df4a08f9c1f3f31e93e61781c4c1d2395e04dd96a583aa-01bd5236b932c3554f04000004972998[base64:19 b/l]) failed: Stream is smaller than expected (0 < 4080128) Aug 6 16:11:12 mailsrv dovecot: lmtp(yyyy): Error: copy: i_stream_read(attachments-connector(/usr/share/smbusers/xxxxx/mail/storage/m.35)) failed: read(/usr/share/smbusers/xxxxx/mail/attachments/e4/ 3d/e43db6e8af6fb1df4a08f9c1f3f31e93e61781c4c1d2395e04dd96a583aa-01bd5236b932c3554f04000004972998[base64:19 b/l]) failed: Stream is smaller than expected (0 < 4080128) Aug 6 16:11:12 mailsrv dovecot: lmtp(yyyy): Error: read(attachments-connector(/usr/share/smbusers/xxxxx/mail/storage/m.35)) failed: read(/usr/share/smbusers/xxxxx/mail/attachments/e4/3d/e43db6e8af6f b1df4a08f9c1f3f31e93e61781c4c1d2395e04dd96a583aa-01bd5236b932c3554f04000004972998[base64:19 b/l]) failed: Stream is smaller than expected (0 < 4080128) (uid=0, box=INBOX) Aug 6 16:11:12 mailsrv dovecot: lmtp(yyyy): AL1SNrkyw1VPBAAABJcpmA: msgid=<2015080614471325760993(a)chinacoalchem.com> (from zsy(a)chinacoalchem.com) save failed to INBOX: Internal error occurred. Refer to server log for more information. [2015-08-06 16:11:12] Why LMTP, when try to deliver mail to local user yyyy tries to look up into a home directory of local user xxxxx? All these and similar home directories has a 'mail' subdir, which keeps mail and rights on this subdir is 0700. To avoid this completely misunderstood occassion, I have temporary set mail_attachment_min_size to 2048kb - but now I cannot receive advantage from SiS. -- С Уважением. Ачилов Рашид Нурмухамедович (AchilovRN(a)granch.ru) Главный специалист по защите информации ООО НПФ "Гранч", тел: +7 (383) 233-35-12, доб. 107

2 2

userdb / user map with director
by Will Yardley 10 Aug '15

10 Aug '15

This is with dovecot-ee 2.2.18.2 on RHEL6.... To handle backend and frontend on same machine, I'm using the following hack, as previously outlined here: [in director instance config] passdb { # See thread ending in: # http://dovecot.org/pipermail/dovecot/2012-June/083817.html # for why this has to be sql instead of 'static' driver = sql args = /etc/dovecot/dovecot-sql.conf } [in /etc/dovecot/dovecot-sql.conf] driver = sqlite connect = /etc/dovecot/empty.db password_query = select 'y' as proxy, \ NULL as password, \ 'y' as nopassword, \ case '%a' \ when '110' then '10110' \ when '995' then '10110' \ when '143' then '10143' \ when '993' then '10143' end \ as port; This works, but I was getting a failure on usernames, since director instance didn't have a userdb. So I tried the following: [in config] passdb { driver = sql args = /etc/dovecot/dovecot-sql.conf } userdb { driver = prefetch } and appended the following to the SQL query: password_query = select '%u' AS user, \ Then I see the following error in the log when I try to run the map "Trying to iterate users, but userdbs don't support it" and doveadm -i director director map returns: Error: User listing returned failure Error: user listing failed [...] I'm sure I'm missing something obvious, so is there an easy fix to make this mapping work? w

1 0

Dovecot sends "OK Logged in" with empty tag
by Simon Thelen 10 Aug '15

10 Aug '15

Hello, I'm currently writing my own IMAP client and testing it against Dovecot, and when doing PLAIN AUTH Dovecot sends the "OK Logged in" with an empty tag at the start. I tried reproducing the conversation with netcat, but Dovecot sends a correctly tagged OK at the end of the AUTH so I assume it's timing related. I've attached pcap dumps of the TCP conversation in both situations as well as the output of dovecot -n. Side Note: Why does Dovecot send the updated capabilities before OK'ing the authentication? Seems strange to me as the client can't assume that the authentication proceeded successfully until it actually receives the OK so it has to assume that those capabilities are pre login. -- Simon Thelen

1 1

Using a separate passdb per service
by Gerry 10 Aug '15

10 Aug '15

Situation: one front-facing server running Dovecot as IMAP/POP3/ ManageSieve proxy, a mixture of IMAP servers (Dovecot, Exchange, ...) in the back-end. Dovecot's passdb does lookups against MySQL which contains a simple user/host mapping, the actual authentication happens on the back-end IMAP servers. The configuration is more or less as described here: http://wiki2.dovecot.org/PasswordDatabase/ExtraFields/Proxy Now I would like to add a Postfix instance on the front-facing server which listens on the submission port and authenticates users via SASL using the local Dovecot's UNIX socket. The idea being that a user only needs to remember one single hostname, one username and one password for all mail-related services. The problem is that Dovecot is operating in proxy mode, which means that the password_query returns NULL as the password and explicitly returns a field "nopasswd" containing "Y". Thus, users can not authenticate against the UNIX socket. What I think I want to do is convince Dovecot to use one passdb for the imap/pop3/managesieve services and different one for the "auth" service. The configuration snippet below doesn't work, but it should illustrate what I want to achieve: > protocols = imap pop3 sieve > > service auth { > passdb sql { > driver = sql > args = /etc/dovecot/mysql-auth-sasl.conf.ext > } > > unix_listener /var/spool/postfix/private/auth { > user = postfix > group = postfix > mode = 0666 > } > } > > # IMAP/POP3/ManageSieve auth against MySQL > passdb sql { > driver = sql > args = /etc/dovecot/mysql-auth-default.conf.ext > } Example mysql-auth-sasl.conf.ext > driver = mysql > connect = host=127.0.0.1 dbname=mail user=mail password=somethingrandom > password_query = SELECT password AS password FROM users WHERE login = '%u' Example mysql-auth-default.conf.ext: > driver = mysql > connect = host=127.0.0.1 dbname=mail user=mail password=somethingrandom > password_query = SELECT NULL AS password, 'Y' as nopassword, host, 'Y' AS proxy FROM users WHERE login = '%u' Any pointers? Gerry

3 4

How to import an mbox to an existing user as a new mailbox
by Paul Hoffman 09 Aug '15

09 Aug '15

Greetings. I have a bunch of mbox files that I want to import to an existing user, each into a new mailbox. That is, I want to import the file project1.mbox to user Foo, into a newly-created mailbox called "Project 1". Is there a dovecot tool to do this on the server? --Paul Hoffman

4 10

Trying to back
by Kevin Laurie 09 Aug '15

09 Aug '15

Hi, I am trying to backup multiple mail accounts by using imapsync and Dovecot on my local machine. I am using maildir as a mail storage format and currently have the following setting on my local machine :- mail_location = maildir:~/Maildir I am afraid that if I imapsync multiple accounts they will all get stored in the same location. Is there a way to seperate the accounts based on the email address? Appreciate if someone could advise. Thanks! Kevin

3 3

2.2.18: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted.
by Dale Gallagher 08 Aug '15

08 Aug '15

Hello I have 2.2.18 built with: ./configure \ --prefix="$prefix" \ --bindir="$prefix/bin" \ --sbindir="$prefix/bin" \ --sysconfdir="/etc" \ --with-storages="maildir,imapc,pop3c" \ --without-vpopmail \ --without-ldap I'm attempting to sync (backup) from another Dovecot server running version 2.0.21: Both servers don't have no explicit namespaces configured and both are using the Maildir storage plugin. doveadm -Dv -o imapc_user=remote_user -o imapc_host=source.host -o imapc_port=993 -o imapc_ssl=imaps -o imapc_password=remote_pass -o imapc_features="rfc822.size fetch-headers" backup -R -u local_user imapc: All seems to go well, showing local and remote mailbox syncing without errors, then finally: dsync(mcg): Debug: brain M: Deleting mailbox 'INBOX' (GUID 59023c2a911dc255842b0000d09efc50): UIDVALIDITY changed (1355416734 -> 1438784913) dsync(mcg): Error: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted. No mail is synced to the local server (2.2.18) after this error halts execution. What should I be looking for, in terms of possible causes of this error? I've tried syncing on a completely fresh mailbox, which hasn't been accessed by a mail client and the same error occurs. I've seen similar reports of this error before, without clear solutions / suggestions. Help would be greatly appreciated. Thanks

1 2

opening a maildir ?
by Kevin Laurie 07 Aug '15

07 Aug '15

Hello, I have a maildir on my Ubuntu PC. I used imapsync + dovecot to copy all my emails on it. What would be a convenient way to access all the emails ( I want to go through and download all attachments). So a tool with some GUI will be nice. Appreciate if someone could help here. Thanks Kevin

2 1

Dovecot under Linux with mail-extension and case insesitiv
by Sascha 06 Aug '15

06 Aug '15

Hello, i use doevecot 2.2.18 current. My Problem is with email-extension and case sensitiv folders. Example: user+extenstion will be delivered to the user and subfolder extenstion so this is okay. but user+extenstion will not be delivert to the user and exiting subfolder Extenstion so that is not okay. The mail will be also delivered in the subfolder extension. The exiting Folder Extension will not used. Give's a way to tell dovecot, use the extension as a Folder, if a exiting folder with Upper/Lower Cases will be detect and use the right folder to delivery? -- Regards Sascha --- Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. https://www.avast.com/antivirus

6 7

Dovecot/Pigeonhole Issue (UTC modtime instead of localtime)
by Christoph Gröver 06 Aug '15

06 Aug '15

Hi List, We are using the following setup: Dovecot-2.2.18 Pigeonhole-0.4.8 (for Dovecot-2.2) After the mail is finally delivered via a fileinto by the Sieve filter it gets an updated timestamp (modification time). The server has localtime setup correctly IMO (UTC +0200), but still the delivered mail is setup as being two hours old. I think I found out that the function sieve_file_storage_update_mtime() is the cause of this problem. But perhaps there has to be some kind of setup, that tells pigeonhole to use the 2 hour offset of CEST. I think to reset the mtime by utime(s) is a bit strange. It already gets the correct modtime just by storing it in the filesystem. Last version we used (0.2.5) did not have this poblem. So it must be there for some reason? Perhaps you can enlighten me. Thanks for your time. Greetings -- Sitepark Gesellschaft für Informationsmanagement mbH Rothenburg 14-16, 48143 Münster Telefon: +49 251 482655-0, Telefax: +49 251 482655-55 http://www.sitepark.com http://www.facebook.com/sitepark Geschäftsführer: Thorsten Liebold Amtsgericht Münster, HRB 5017

2 5

Dovecot sieve pigeonhole permission
by Gerhard Wiesinger 05 Aug '15

05 Aug '15

Hello, I'm running dovecot in a classical vmail.vmail setup with pigeonhole and LMTP. Permission worked well in the initial setup but currently (maybe after Fedora 22 update) I'm having the following permission issue: lmtp(root): Error: 7fPZFOL9wFXePQAABcdabc: sieve: binary open: failed to open: open(/etc/dovecot/sieve_after.svbin) failed: Permission denied (euid=9999(vmail) egid=9999(vmail) missing +r perm: /etc/dovecot/sieve_after.svbin, we're not in group 0(root), dir owned by 0:0 mode=0755) lmtp(root): Error: 7fPZFOL9wFXePQAABcdabc: sieve: binary save: failed to create temporary file: open(/etc/dovecot/sieve_after.svbin.myserver.mydomain.15838.) failed: Permission denied (euid=9999(vmail) egid=9999(vmail) missing +w perm: /etc/dovecot, dir owned by 0:0 mode=0755) lmtp(root): Error: 7fPZFOL9wFXePQAABcdcbc: sieve: The LDA Sieve plugin does not have permission to save global Sieve script binaries; global Sieve scripts like `/etc/dovecot/sieve_after.sieve' need to be pre-compiled using the sievec tool rpm -V dovecot dovecot-pigeonhole doesn't report any permission issues Versions: dovecot-2.2.18-2.fc22.x86_64 dovecot-pigeonhole-2.2.18-2.fc22.x86_64 Relevant config parts: mail_gid = vmail mail_uid = vmail plugin { sieve = ~/.dovecot.sieve sieve_after = /etc/dovecot/sieve_after.sieve sieve_dir = ~/sieve } ls -lad /etc/dovecot/ drwxr-xr-x. 3 root root 4096 Jul 30 18:13 /etc/dovecot/ ls -la /etc/dovecot/*sieve* -rwxr-x--- 1 vmail vmail 288 Aug 8 2014 /etc/dovecot/sieve_after.sieve -rw-r----- 1 root root 355 Jul 30 18:13 /etc/dovecot/sieve_after.svbin What's are the recommended permissions for the files/directories (also for root service startup of dovecot)? Did something change in permissions management? Thanx. Ciao, Gerhard -- http://www.wiesinger.com/

2 3

451 4.3.0 Temporary internal failure
by Nutsch 04 Aug '15

04 Aug '15

Hi i can send mails without problems in any direction, except when the attachments are bigger than 1 MB. I alway get this message relay=mail.example.net[private/dovecot-lmtp], delay=35155, delays=35155/0.03/0.02/0.09, dsn=4.3.0, status=deferred (host mail.example.net[private/dovecot-lmtp] said: 451 4.3.0 Temporary internal failure (in reply to end of DATA command)) Aug 3 19:34:34 46185 dovecot: lmtp(6477): Disconnect from local: Temporary internal failure (in DATA) postconf message_size_limit message_size_limit = 0 postconf mail_size_limit mailbox_size_limit = 0 i can send big attachments to an extern address but not from intern to intern. Someone said that maybe the tmp directory is the problem so i checked the size. ls -ald /tmp/; df -h /tmp/ drwxrwxrwt 4 root root 80 Aug 3 19:44 /tmp/ Filesystem Size Used Avail Use% Mounted on - 1,0M 4,0K 1020K 1% /tmp root@example:/tmp# is there a connection between lmtp and the size of the tmp directory? And why is the size 1,0M, tmp is not an own partion. Should i increase the size? And if yes, how? df -h Filesystem Size Used Avail Use% Mounted on /dev/vzfs 80G 12G 69G 15% / ??? br. noctua

2 4

Renaming shared mailbox makes it disappear from sharee
by Andy Csillag 03 Aug '15

03 Aug '15

I've run into an interesting thing. If a mailbox has been shared to a second user (I'll call it the sharee), and there are subfolders on that mailbox, and the sharee renames one of those subfolders, it disappears from view to the sharee. The only way I've been able discover to fix it is to have the sharee create a new subfolder -- then the renamed folder shows up again; in addition to the newly created folder. For example, first(a)example.org shares it's INBOX to second(a)example.org. There's a folder INBOX/thing, which second@ renames to INBOX/renamed (ACLs permitting). second@ can no longer can see INBOX/renamed (or INBOX/thing for that matter), via IMAP's LIST command. But if second@ creates a new folder INBOX/other, INBOX/renamed is now visible. This is very reproducible for me. I also tried it without the imappostlogin bit (in the dovecot -n). Anyone else run into this? No NFS is involved, this is a single machine setup. Output of dovecot -n # 2.2.18: /dovecot/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.8 # OS: Linux 2.6.32-504.el6.x86_64 x86_64 CentOS release 6.6 (Final) xfs auth_master_user_separator = * auth_mechanisms = plain login dict { acl = mysql:/dovecot/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no lda_mailbox_autosubscribe = yes mail_home = mdbox:/dovecot/var/homedirs/%2Mu/%2.2Mu/%u mail_location = mdbox:/dovecot/var/mailboxes/%2Mu/%2.2Mu/%u mail_plugins = acl mail_shared_explicit_inbox = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate vnd.dovecot.pipe vnd.dovecot.filter vnd.dovecot.execute namespace { list = children location = mdbox:/dovecot/var/mailboxes/%%2Mu/%%2.2Mu/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } namespace inbox { inbox = yes location = mailbox Drafts { special_use = Drafts } mailbox Junk { special_use = Junk } mailbox Sent { special_use = Sent } mailbox "Sent Messages" { special_use = Sent } mailbox Trash { special_use = Trash } prefix = } passdb { args = /dovecot/etc/dovecot/mastership-sql.conf driver = sql master = yes pass = yes } passdb { args = /dovecot/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = proxy::acl sieve_after = /dovecot/etc/dovecot/sieve/99-autofile.sieve sieve_after2 = /dovecot/etc/dovecot/sieve/98-notify-biz-address.sieve sieve_execute_bin_dir = /dovecot/etc/dovecot/sieve-execute sieve_execute_socket_dir = sieve-execute sieve_extensions = +vnd.dovecot.execute +vnd.dovecot.filter +vnd.dovecot.pipe sieve_filter_bin_dir = /dovecot/etc/dovecot/sieve-filter sieve_filter_socket_dir = sieve-filter sieve_pipe_bin_dir = /dovecot/etc/dovecot/sieve-pipe sieve_pipe_socket_dir = sieve-pipe sieve_plugins = sieve_extprograms } postmaster_address = postmaster(a)xxxxdomain.com sendmail_path = /dovecot/sbin/sendmail service dict { unix_listener dict { user = dovecot } } service imap-postlogin { executable = script-login /dovecot/etc/dovecot/imappostlogin user = $default_internal_user } service imap { executable = imap imap-postlogin } ssl = no userdb { args = uid=dovecot gid=dovecot home=/dovecot/var/mailboxes/%%2Mu/%%2.2Mu/%%u driver = static } protocol lmtp { mail_plugins = acl sieve } protocol lda { mail_plugins = acl sieve } protocol imap { mail_plugins = acl imap_acl }

1 0

Structure of dovecot.index.pvt.log
by Miloslav Hůla 03 Aug '15

03 Aug '15

Hi, we are migrating from Cyrus to Dovecot and I would like to migrate seen flags for shared folder too. We have Dovecot 2.2.13 prepared as: location = maildir:/vmail/user/%%n/Maildir:INDEXPVT=/vmail/user/%n/Maildir/Shared/%%n Now I'm looking for 'dovecot.index.pvt.log' syntax to be able migrate Seen flags. All I know is, that index contains messages UID and Seen flag. May I ask you for a link to doc (if it exists) or into a source code? Should I care about 'dovecot.index.pvt.log' timestamps? Thank you, Milo

1 0

Question RE listescape and separators
by Jakob Curdes 30 Jul '15

30 Jul '15

Hello, we just start moving a large number of mailboxes to a new dovecot server with dovecot 2.0.9 (from CentOS) and sdbox as mailbox type. We use imapsync so there is no issue with mailbox type conversion. However, in test runs I noted that some mail folders,e.g. with dots in them, could not be transferred; dovecot says Couldn't create folder [7.8) Personnel] from [7.8) Personnel]: 106 NO Character not allowed in mailbox name: '.' We have the separator "/" defined for our only namespace so the dot should not be an issue!? I tried to use listescape but either the plugin is not loading (how can I verify this?) or it does not escape the dot in the mailbox name. The listescape settings are the defaults: namespace { separator = / (...) } mail_plugins = $mail_plugins listescape plugin { listescape_char = "\\" } What am I doing wrong? How can I make dots in mailboxes possible? Best regards, Jakob Curdes

1 0

Re: Sieve case insensitive detail part
by Peter Chiochetti 30 Jul '15

30 Jul '15

Am 2015-07-30 um 01:07 schrieb Sascha: > Ich hab mehr als 30-40 Ordner, die ich per + Zeichen direkt adressiere. > […] Adressen gezielt zu filtern, ohne Sieve zu konfigurieren, hab nicht > immer gleich zugriff ein Sieve Client (bei Neuvergabe, wurden die Ordner > angelegt, wenn auch erst mal in der Schreibweise der Adresserweiterung. > Ich habe das ganze schon befürchtet und muss wohl doch über sieve > nachdenken, um mein Problem zu lösen. Hello Sascha, sieve scripts are quite easy, see Steffen's example. I think what you want your script to do is: With any detail part, lowercase it, file message into detail folder, create as necessary. Something like auto-variables in Makfiles, where the rule gets its value from the target, e.g. -- peter

1 0

Re:\ help, permissions issues‏
by josh schooler 29 Jul '15

29 Jul '15

both of my other servers its owned by exim, the permissions in the other two servers are 644, and dovecot starts just fine on those, I don't know what happened I updated my server from opensuse 12.1 to 13.2 and now dovecot is refusing to start.> From: alvin.sm(a)Mail.Linux-Consulting.com> Subject: Re: help, permissions issues> To: dovecot(a)dovecot.org> Date: Mon, 27 Jul 2015 14:47:14 -0700> CC: alvin.sm(a)Mail.Linux-Consulting.com> > > hi> > > Hey everyone I've tried changing the permissions with the file it is telling me is giving me the issue, restarted exim and the computer, but still can't get dovecot to start.> > > > 2.2.13> > > dovecot -F> > doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-ssl.conf line 14: ssl_cert: Can't open file /etc/exim/openssl/exim.crt: Permission denied> > wag ...> > chown root.root /etc/exim/openssl> chmod 750 /etc/exim/openssl> > chown root.root /etc/exim/openssl/exim.*> chmod 400 /etc/exim/openssl/exim.*> > OpenSSL certs should always be read only by root> > you might want to check the docs regarding uid/gid running dovecot > and uid/gid of dovenull> and permissions for the dovecot dir tree /etc/dovecot*> > wag ... i think it should not be owned by exim> > ...> > > ssl_cert = </etc/exim/openssl/exim.crt> > ssl_key = </etc/exim/openssl/exim.key> > pixie dust> alvin> - http://NetworkNightmare.net/OpenSSL> - http://DDos-Mitigator.net

3 4

Deafness
by Steffan Cline 29 Jul '15

29 Jul '15

I’ve started in the last day or so having issues where users get a timeout when connecting to dovecot. The iPhone interprets this as an auth issue but re-entering the password makes no change. Outlook will either just not connect to it at all or it gives an error to re-enter the password also with no change. This happens within an hour of a "service dovecot restart". I’m using CentOS 6 with dovecot 2.0.9 from the centos repos. There’s nothing visible in the logs. Suggestions of what to check for? Thanks, Steffan

6 9

dbox: message internal date
by Francesco 29 Jul '15

29 Jul '15

Hello everyone and thanks in advance for the help :) I'm trying to figure out where does dovecot store the message internal date when using single dbox storage format. In Maildir format, the internal date is determined by the actual date of the file on the filesystem, but in dbox it doesn't seem to be the case. I'm looking forward for a way to modify a message internal date when on a dovecot instance running dbox storage engine, maybe anyone knows if it's possible and how to accomplish this? Again, thank you for the help Sincerely Francesco

1 0

sharing INBOX with ACL -> share all folders
by Marco Giunta 28 Jul '15

28 Jul '15

Hi at all, I have a problem with ACL; I want to share INBOX and Sent folder to an other user, but when I configure ACL on INBOX, all folders are shared (Sent, Junk, Draft, Trash, etc) # doveadm acl get -u janedoe INBOX ID Global Rights user=johndoe expunge insert lookup post read write write-deleted write-seen # doveadm acl get -u janedoe Sent ID Global Rights user=johndoe expunge insert lookup post read write write-deleted write-seen # doveadm acl get -u janedoe Trash ID Global Rights # doveadm acl get -u janedoe Drafts ID Global Rights # doveadm acl get -u janedoe Junk ID Global Rights # doveadm mailbox list -u johndoe Trash Junk Drafts Sent Archives Archives.2015 Other Users Other Users.janedoe Other Users.janedoe.Junk Other Users.janedoe.Drafts Other Users.janedoe.Sent Other Users.janedoe.Trash Other Users.janedoe.INBOX INBOX If I remove the INBOX ACL, only 'Sent' folder is shared, as expected: # doveadm acl delete -u janedoe INBOX johndoe # doveadm mailbox list -u provahe Trash Trash.saved-messages Junk Drafts Sent INBOX_spam Archives Archives.2015 Archives.2015.INBOX_spam Other Users Other Users.janedoe Other Users.janedoe.Sent INBOX My Dovecot instance use a single user, and all my mailboxes use standard maildir files: drwx------ 9 vmail mail 0 Jul 28 10:59 . drwx------ 12 vmail mail 3864 Jul 28 09:39 .. drwx------ 2 vmail mail 0 Jul 28 09:51 cur -rw------- 1 vmail mail 0 Jul 28 10:59 dovecot-acl -rw------- 1 vmail mail 16 Jul 28 10:59 dovecot-acl-list -rw------- 1 vmail mail 1448 Jul 28 09:51 dovecot.index.cache -rw------- 1 vmail mail 1016 Jul 28 09:52 dovecot.index.log -rw------- 1 vmail mail 113 Jul 28 09:51 dovecot-uidlist -rw------- 1 vmail mail 8 Jul 28 09:39 dovecot-uidvalidity -r--r--r-- 1 vmail mail 0 Jul 28 09:39 dovecot-uidvalidity.55b731ac drwx------ 5 vmail mail 0 Jul 28 09:39 .Drafts lrwxrwxrwx 1 vmail mail 5 Jul 28 09:39 .INBOX_spam -> .Junk drwx------ 5 vmail mail 0 Jul 28 09:39 .Junk -rw------- 1 vmail mail 16 Jul 28 09:39 maildirsize drwx------ 2 vmail mail 0 Jul 28 09:51 new drwx------ 5 vmail mail 0 Jul 28 09:50 .Sent -rw------- 1 vmail mail 37 Jul 28 09:39 subscriptions drwx------ 2 vmail mail 0 Jul 28 09:51 tmp drwx------ 5 vmail mail 0 Jul 28 09:39 .Trash any clue to solve my problem ?? I've already try to play with 'acl_defaults_from_inbox' setting, but no way .. Thank you, Marco # 2.2.15: /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.6 (3e924b1b6c5c+) # OS: Linux 2.6.18-400.1.1.el5 x86_64 Red Hat Enterprise Linux Server auth_master_user_separator = * auth_mechanisms = plain login disable_plaintext_auth = no doveadm_password = XXXXXXXXXXXXXXXXXXXXXXXX doveadm_port = 12345 first_valid_uid = 200 hostname = xxxxxxx.sissa.it imap_client_workarounds = delay-newmail lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lda_original_recipient_header = X-Original-To listen = * login_log_format_elements = user=<%u> PID=%p method=%m rip=%r lip=%l %c login_trusted_networks = XXX.XXX.1.172/30 XXX.XXX.24.0/23 mail_gid = mail mail_home = /var/spool/mail/%1n/%n mail_location = maildir:/var/spool/mail/%1n/%n:INDEX=/var/shared/indexes/%1n/%n mail_plugins = acl fts fts_solr mailbox_alias quota mail_shared_explicit_inbox = yes mail_uid = vmail maildir_very_dirty_syncs = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave duplicate imapflags notify mbox_write_locks = fcntl mmap_disable = yes namespace archives { hidden = no inbox = no list = children location = maildir:/var/spool/archives/%1n/%n:INDEX=/var/shared/indexes/%1n/%n/archives mailbox 2015 { auto = subscribe special_use = \Archive } prefix = Archives. separator = . subscriptions = no type = private } namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox INBOX_spam { auto = subscribe special_use = \Junk } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = . } namespace others { list = children location = maildir:/var/spool/mail/%%1n/%%n:INDEXPVT=/var/shared/indexes/%1n/%n/shared/%%n prefix = Other Users.%%n. separator = . subscriptions = no type = shared } passdb { args = /etc/dovecot/passwd.masterusers driver = passwd-file master = yes pass = yes } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/etc/dovecot/global-acls:cache_secs=300 acl_defaults_from_inbox = no acl_shared_dict = file:/var/shared/dovecot/shared-mailboxes.dict fts = solr fts_autoindex = yes fts_autoindex_max_recent_msgs = 20 fts_solr = url=http://solr.localdomain:8080/solr/ mailbox_alias_new = INBOX_spam mailbox_alias_old = Junk quota = maildir:User quota:ns= quota2 = maildir:Archive quota:ns=Archives. quota2_rule = *:storage=20GB quota2_warning = storage=95%% quota2-warning 95 %u quota2_warning2 = storage=90%% quota2-warning 90 %u quota2_warning3 = storage=80%% quota2-warning 80 %u quota_rule = *:storage=5GB quota_rule2 = Trash:storage=+20%% quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Quota exceeded (mailbox for user is full) quota_status_success = DUNNO quota_warning = storage=100%% quota-warning 100 %u quota_warning2 = storage=95%% quota-warning 95 %u quota_warning3 = storage=90%% quota-warning 90 %u quota_warning4 = storage=80%% quota-warning 80 %u sieve = file:~/sieve;active=~/sieve/.dovecot.sieve sieve_default = /etc/dovecot/sieve/dovecot.sieve sieve_extensions = +notify +imapflags sieve_max_redirects = 16 } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh postmaster_address = postmaster(a)sissa.it protocols = imap pop3 lmtp sieve rejection_reason = Your message to <%t> was automatically rejected for the following reason: %n%n%r service auth { inet_listener { port = 49494 } unix_listener auth-userdb { user = vmail } } service dict { unix_listener dict { user = vmail } } service doveadm { inet_listener { port = 26001 } } service imap-login { process_min_avail = 16 service_count = 0 } service imap { process_limit = 2048 } service lmtp { inet_listener lmtp { port = 24 } process_min_avail = 5 } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } process_min_avail = 16 service_count = 0 vsz_limit = 256 M } service quota-status { client_limit = 1 executable = /usr/libexec/dovecot/quota-status -p postfix inet_listener { port = 25001 } } service quota-warning { executable = script /usr/local/bin/dovecot-quota-warning.sh unix_listener quota-warning { user = vmail } user = vmail } service quota2-warning { executable = script /usr/local/bin/dovecot-quota2-warning.sh unix_listener quota2-warning { user = vmail } user = vmail } ssl_cert = </etc/pki/dovecot/certs/xxxxx-crt.pem ssl_key = </etc/pki/dovecot/private/Xxxxx-key.pem ssl_protocols = !SSLv2 !SSLv3 submission_host = xxxxxx.sissa.it:25 syslog_facility = local2 userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { mail_plugins = acl fts fts_solr mailbox_alias quota sieve postmaster_address = xxxxxxx(a)sissa.it } protocol lda { info_log_path = log_path = mail_plugins = acl fts fts_solr mailbox_alias quota sieve syslog_facility = local2 } protocol imap { mail_max_userip_connections = 50 mail_plugins = acl fts fts_solr mailbox_alias quota imap_quota imap_acl } protocol sieve { mail_max_userip_connections = 50 } protocol pop3 { mail_max_userip_connections = 50 } -- ----------------------------------- |Marco Giunta - SISSA Computer Staff| |Via Bonomea, 265 | |34136 - Trieste, Italy | |Tel: +39-40-3787-503 | |Fax: +39-040-3787-244 | |e-mail: giunta(a)sissa.it | -----------------------------------

3 3

help, permissions issues
by josh schooler 28 Jul '15

28 Jul '15

Hey everyone I've tried changing the permissions with the file it is telling me is giving me the issue, restarted exim and the computer, but still can't get dovecot to start. 2.2.13 > dovecot -F doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-ssl.conf line 14: ssl_cert: Can't open file /etc/exim/openssl/exim.crt: Permission denied > dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.16.7-21-desktop x86_64 openSUSE 13.2 (x86_64) auth_verbose = yes base_dir = /var/run/dovecot/ debug_log_path = /var/log/dovecot/debug doveadm_worker_count = 10 first_valid_uid = 1000 info_log_path = /var/log/dovecot/dovecot.info login_trusted_networks = 127.0.0.1 192.168.1.0/24 174.75.35.100 174.75.35.98 mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave namespace inbox { inbox = yes location = prefix = } passdb { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } pop3_uidl_format = %v-%u protocols = pop3 service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } ssl_cert = </etc/exim/openssl/exim.crt ssl_key = </etc/exim/openssl/exim.key userdb { driver = passwd } protocol pop3 { mail_max_userip_connections = 30 }

2 1

LMPT SSL
by Piotr Rotter 27 Jul '15

27 Jul '15

Hello, I tryed to eneble TLS connection from postfix to dovecot lmtp. Unfortunely I have problem with certificate, postfix shows, 2015-07-27T12:51:15.025333+02:00 k30 postfix/lmtp[4572]: Untrusted TLS connection established to 192.168.67.30[192.168.67.30]:24: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) I checked certs by openssl s_client: #openssl s_client -connect localhost:24 -showcerts -starttls smtp -CApath /etc/ssl/certs/ And I gets didn't found starttls in server response, try anyway... depth=0 OU = GT46258006, OU = See www.rapidssl.com/resources/cps (c)15, OU = Domain Control Validated - RapidSSL(R), CN = mail.active24.pl verify error:num=20:unable to get local issuer certificate verify return:1 depth=0 OU = GT46258006, OU = See www.rapidssl.com/resources/cps (c)15, OU = Domain Control Validated - RapidSSL(R), CN = mail.active24.pl verify error:num=27:certificate not trusted verify return:1 depth=0 OU = GT46258006, OU = See www.rapidssl.com/resources/cps (c)15, OU = Domain Control Validated - RapidSSL(R), CN = mail.active24.pl verify error:num=21:unable to verify the first certificate verify return:1 It look likes dovecot lmtp send 3 times the same certificate. I made the same test for imap in the same dovecot instance: #openssl s_client -connect localhost:143 -showcerts -starttls imap -CApath /etc/ssl/certs/ CONNECTED(00000003) depth=2 C = US, O = GeoTrust Inc., CN = GeoTrust Global CA verify return:1 depth=1 C = US, O = GeoTrust Inc., CN = RapidSSL SHA256 CA - G3 verify return:1 depth=0 OU = GT46258006, OU = See www.rapidssl.com/resources/cps (c)15, OU = Domain Control Validated - RapidSSL(R), CN = mail.active24.pl verify return:1 For imap it looks ok. Why lmtp shows wrong certs list # dovecot --version 2.2.16 -- Pozdrawiam! / Best regards! ------------------ Piotr Rotter Konsultant IT / IT Consultant =========================================== http://www.ACTIVE24.pl - Powerful hosting - surprisingly easy =========================================== ul. Barkocińska 6, 03-543 Warszawa PL Email: bok(a)active24.pl Tel: +48 222 950 446

2 2

Importing mbox archives into a inbox?
by Paul Hoffman 27 Jul '15

27 Jul '15

Greetings from a dovecot newbie. I have a bunch of mailing list archives (in mbox) format that I want to dump into the inbox for a particular account on the system. I want them to retain all of their information, particularly the date. I'm not seeing how to do this, but I could be missing it. Is this LDA or LMTP with some command-line options I'm not seeing? --Paul Hoffman

2 1

POP3 getting previously delivered messages.
by Jas Reehal 24 Jul '15

24 Jul '15

Hi All, This is my first post to this list. I have recently upgraded to dovecot version 2.2.10. 1. I have one POP3 user who does not want to delete his email on the server. 2. He has accumulated over 19000 messages, and the 'dovecot.uidlist' file has more than 19000 lines! 3. Occasionally now when he has received one or more new emails, and his email client does a 'get new mail' operation (POP3) he begins to receive email he has already received previously. last time this happened all 19000+ messages were delivered again, leaning to duplicate entries in all his mailboxes. I have reproduced this issue with a dummy email account with a POP3 client, leaving all messages on the server. I have delivered 20000 messages to this email account, each about 1.3k ins size and each with .... Subject: Message number <n> Body containing "Message number <n>" where <n> is 1 to 20000 now occasionally if I send another message to this email account, and then check for new messages using a POP3 client I get more messages downloaded than I expect! The 'dovecot.uidlist' file is not corrupt, but I beleive due ti it's size (number of lines) the is an issue on compiling a ' POP3 drop-list'. I have attached a file 'dovecot-a.txt' which shows the 'dovecot -a' output from my server. Based on what I have investigated I believe that this issue may not be correlated with a migration to version 2.2.10, but more to do with the number of messages retained on the server. Is there anyone who has any insight into what is happening and if there is any remedy, perhaps a "pop3_client_workarounds =" or other POP3 or UIDL directive in the conf files? The user is stubbornly resisting migration to IMAP, because of the time and effort he says will be required to replicate his organised filing/storage of messages on the server. Kind Regards Jas Reehal -- Jas Reehal | IT & Networks Consultant *Zuken Limited - /The Partner for Success/* 1500 Aztec West, Almondsbury, Bristol, BS32 4RF, United Kingdom T: +44 1454 207824 | F: +44 1454 207803 E: jas.reehal(a)zuken.co.uk <mailto:jas.reehal@zuken.co.uk> | W: www.zuken.com <http://www.zuken.com> Connect with Zuken: blog <http://blog.zuken.com> | youtube <http://www.youtube.com/zukentube> | linkedin <http://www.zuken.com/linkedin> | twitter <http://www.zuken.com/twitter> | facebook <http://www.zuken.com/facebook> Zuken Ltd // Registered office: Bristol // Registered No. 956340 // Directors: Jinya Katsube, Kazuhiro Kariya, S Yukawa This e-mail message from Zuken including any attachments is intended only for the individual or entity to which it is addressed. This e-mail may contain privileged, proprietary, or otherwise private information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you received this e-mail by accident, please notify the sender immediately and destroy this e-mail and all copies of it.

2 1

possible patch for ACL SQL ERROR: duplicate key value violates unique constraint "user_shares_pkey"
by Steffen Kaiser 24 Jul '15

24 Jul '15

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm using Postgres as dict backend now and then I get this error, when someone changed ACLs, actually for some reason some users, who get permission from other users, get this error quite often: dict: Error: sql dict: commit failed: ERROR: duplicate key value violates unique constraint "user_shares_pkey" (query: INSERT INTO user_shares (dummy,to_user,from_user) VALUES ('1','user1','user2')) It looks like that this error is triggered, when a MUA is connecting to Dovecot after ACLs had been changed and opens several mailboxes at once. So two or parallel Dovecot instances try to insert the record simultaneously. With a similiar technique to the quota problem, I added a trigger. The idea is to use the condition dummy ISNULL to detect, that the function was triggered from the INSERT of the function itself, hence, breaking the recursive triggers. This assumes that dummy is never NULL from Dovecot. The same applies to anyone_shares, just remove the to_user field from the function. Does somebody see something wrong with my hack? ============= CREATE FUNCTION insert_sharing() RETURNS trigger LANGUAGE plpgsql AS $$ BEGIN IF NEW.dummy IS NULL THEN -- ugly kludge: we came here from this function, really do try to insert return NEW; END IF; LOOP UPDATE user_shares SET dummy = NEW.dummy WHERE from_user = NEW.from_user AND to_user = NEW.to_user; IF found THEN -- updated and inserted RETURN NULL; END IF; BEGIN INSERT INTO user_shares (from_user,to_user,dummy) VALUES (NEW.from_user,NEW.to_user,NULL); --- return NULL; EXCEPTION WHEN unique_violation THEN -- someone just inserted the record, update it END; -- Update dummy after INSERT END LOOP; END; $$; CREATE TRIGGER insertsharing BEFORE INSERT ON user_shares FOR EACH ROW EXECUTE PROCEDURE insert_sharing(); - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEVAwUBVbHxJXz1H7kL/d9rAQIn5gf/dNMQKmmigGrbccGQQrsGU66B6OHvTY7L 1vyh8hgr985KNk2/Ws/usLnAqpl5jhpo8kVPLI8TqcGYLAS/67TOIFrwLKAEBU96 e+QpbqqiSm66mZwWOQZgCI63+Fh7fdBUMREL6UqGleFF1GrzNnjmX4MGecbpu/L9 gQMAGUG++/S+ka9S6B275RXIj9DvWzq/oYqJ1M1grGckUxXfDk5szLyvuIJ981At 20qaCHEIlIOlkQ0ttE4W+RWkkYS2rMJvCzQelF4pcm6vaxhXxvqUryzmy9pv+UUT osqS6igWt7BPXF7ku8+rKYVp/qPZrh9IWXMsajr/2nI+V5gRb6u2ow== =gb1P -----END PGP SIGNATURE-----

1 0

Authenticate system user with alternate password
by AC 23 Jul '15

23 Jul '15

Is there a way to configure Dovecot to authenticate a system user against a different password list? I want to give my own personal account on my machine a password for IMAP and have that be different from the password I use to log into the system for maintenance purposes. I currently do this for outbound email by having the MTA authenticate against a SASL database during the initial SMTP connection (STARTTLS).

2 1

Client Limit reached in Dovecot
by Chandran Manikandan 22 Jul '15

22 Jul '15

Dear Friends, I have faced below issues since two weeks to till now. Could anyone help me to rectify this issue. Below message retrieve from logs and getting disconnection from Outlook and other email clients. Error Message Jul 20 10:33:35 master: Warning: service(imap-login): process_limit (100) reached, client connections are being dropped My local.conf from dovecot folder protocol imap { imap_client_workarounds = "delay-newmail" mail_max_userip_connections = 20 default_process_limit = 300 } 10-master.conf default_process_limit = 300 default_client_limit = 1000 service imap-login { inet_listener imap { # process_limit = 15 # client_limit = 300 #port = 143 } -- *Thanks,* *Manikandan.C* *System Administrator*

2 2

dovecot proxy/director and high availability design
by Chad M Stewart 21 Jul '15

21 Jul '15

I'm trying to determine which dovecot components to use and how to order them in the network path from client to mail store. If I have say 1,000 users, all stored in MySQL (or LDAP) and have 4 mail stores, configured into 2, 2 node pods. MS1 and MS2 are pod1 and are configured with replication (dsync) and host users 0-500. MS3 and MS4 are pod2 and are configured with replication between them and host users 501-1000. Ideally the active connections in pod1 would be split 50/50 between MS1 and MS2. When maintenance is performed obviously all active connections/users would be moved to the other node in the pod and then rebalanced once maintenance is completed. I'm not sure if I need to use both the proxy and director, or just one or the other? If both then what is the proper path, from a network perspective? I like the functionality director provides, being able to add/remove servers on the fly and adjust connections, etc.. But from what I've read director needs to know about all mail servers. The problem is that not all servers host all users. User100 could be serviced by ms1 or ms2, but not by ms3 or ms4. I'm trying to design a system that should provide as close to 99.999% service availability as possible. Thank you, Chad

5 8

SSL accept error
by jjhoffart 21 Jul '15

21 Jul '15

Hello, I am having some trouble isolating an issue with my mail server. In my mail log I keep receiving the following errors: SSL_accept:failed in SSLv3 read client certificate A SSL_accept: error form client(a)mydomain.com: lost connection SSL_accept:SSLv3 flush data I have look through both my dovecot and postfix configs but have not been able to isolate the issue yet, hoping someone might be able to help.

3 2

Re: Client Limit reached in Dovecot
by Daniel Tröder 21 Jul '15

21 Jul '15

Hallo :) On mailinglists please reply below the previous post. It's easier to read this way. Am 21.07.2015 um 11:26 schrieb Chandran Manikandan: > Dear Daniel, > Thanks for your kind response. As per your above command got below > result. but i couldn't see below settings are local.conf,10-master.conf > or toaster.conf. Where it's retrieved. > default_process_limit=100 > default_client_limit=1000 > default_vsz_limit=256 M > service/imap/process_limit=1024 > service/imap/client_limit=1 > service/imap/service_count=1 > service/imap/vsz_limit=18446744073709551615 B > service/imap-login/process_limit=0 > service/imap-login/client_limit=0 > service/imap-login/service_count=1 > service/imap-login/vsz_limit=18446744073709551615 B My guess is, that service/imap-login/process_limit=0 disables the setting and then default_process_limit=100 applies. As to where default_process_limit=100 comes from… try: grep -r default_process_limit /etc/dovecot Greeting Daniel > > > > On Tue, Jul 21, 2015 at 4:56 PM, Daniel Tröder <troeder(a)univention.de > <mailto:troeder@univention.de>> wrote: > > Am 21.07.2015 um 10:35 schrieb Chandran Manikandan: > > Dear Friends, > > I have faced below issues since two weeks to till now. Could anyone help me > > to rectify this issue. > > > > Below message retrieve from logs and getting disconnection from Outlook and > > other email clients. > > > > Error Message > > > > Jul 20 10:33:35 master: Warning: service(imap-login): process_limit (100) > > reached, client connections are being dropped > > > > My local.conf from dovecot folder > > > > protocol imap { > > imap_client_workarounds = "delay-newmail" > > mail_max_userip_connections = 20 > > default_process_limit = 300 > > } > This should be just "process_limit" without "default". But it's > unnecessary, as you set globally default_process_limit. > > > 10-master.conf > > > > default_process_limit = 300 > > default_client_limit = 1000 > > > > service imap-login { > > inet_listener imap { > > # process_limit = 15 > > # client_limit = 300 > > #port = 143 > > } > It is the "imap-login" process_limit that is reached. With the set > default_process_limit=300 this shouldn't happen. So maybe there is some > setting somewhere else, that is not shown. Please supply the output of: > > doveconf -S | egrep '(default|imap/|imap-login).*(limit|service_count)' > > Greetings > Daniel Tröder > > > > > -- > *Thanks,* > *Manikandan.C* > *System Administrator*

1 0

Dovecot in UCS
by Daniel Tröder 21 Jul '15

21 Jul '15

Hello :) I hope you can forgive me a little advertisement: The English translation of my blog post on the Dovecot integration I did for the Univention Corporate Server (UCS) is online: https://www.univention.com/2015/07/dovecot-is-the-default-imappop3-mail-ser… UCS is a Debian based Linux Distribution, everything - incl. management bits - is OSS. There is a "Core Edition" that you can download and use (also commercially) for free, that is - despite its name - feature complete: https://www.univention.com/downloads/ucs-download A lot of interesting Dovecot features can be changed without breaking things, so this blog post may be interesting to everyone. The German version can be found here: https://www.univention.de/2015/07/mailserver-dovecot-als-standard-imappop3-… Greetings Daniel Tröder

1 0

[Dovecot] Dovecot FTS using ElasticSearch
by Darvin Denmian 21 Jul '15

21 Jul '15

Hi, I would like to know if is possible to use ElasticSearch instead of Solr for FTS. Regards, Erick Vitor de Barros.

6 6

[Dovecot Antispam] Can't seem to load plugin
by James Lott 21 Jul '15

21 Jul '15

Hello list, I'm hoping there is a user of the antispam plugin out there who might be able to lend a pointer or two. I am running dovecot 2.2.18 on FreeBSD 10 (doveconf -n attached), where I have installed the binary dovecot2-antispam-plugin package. I have put together what should, in my estimation, be a working configuration for the plugin. I have reviewed the man page and the online documentation, and I think at the *very least* I should be seeing errors for something not working correctly. However, what I have is a great deal more troubling. There is no sign on the plugin even attempting to load. No log entries, no errors, nothing. The plugin is definitely in the right place with the right name, since I let the package manager handle all of that for me root@zerolag:~ # ls -l /usr/local/lib/dovecot/lib90_antispam_plugin.so -rwxr-xr-x 1 root wheel 32488 Jul 2 09:41 /usr/local/lib/dovecot/lib90_antispam_plugin.so I am unable to make any sense of this. Thanks in advance for any pointers :) -- James Lott

4 6

Problems with IMAP/POP and dovecot director on backend (director_proxy_maybe)
by dominik 20 Jul '15

20 Jul '15

Hello dovecot community, first of all: dovecot ist great! ;) ...nevertheless I´ve got some problems to get my director scenario running as needed/expected :( My scenario: I´d like to configure two dovecot backends, without the need for multiple dovecot instances. Both backend servers are active/active and act on top of a glusterfs storage, which implies the need for dovecot director. As described in release notes (v2.2.17) this should be possible by setting the extra field "director_proxy_maybe=yes".: "+ director: Implemented director_proxy_maybe passdb extra field to be able to run director and backend in the same Dovecot instance. (LMTP doesn't support mixed proxy/non-proxy destinations currently.)" My setup: * 1 LMTP client (SLES11p3 with postfix) * 1 IMAP/POP3 client (Debian8 with thunderbird 31.6.0): 10.0.0.26. The client connects through a dovecot mailproxy or direct. * 1 dovecot mailproxy: 10.0.1.151 * 2 mailbox backends running dovecot v2.2.18 on SLES11p3 with mail_location pointing to a glusterfs-mountpoint (GlusterFS: v3.6.3) * mailbox01.example.de: 10.0.2.21 * mailbox02.example.de: 10.0.2.22 * mailbox-gluster.example.de points as an A-RR to 10.0.2.21 and 10.0.2.22. My problem: With LMTP everything works fine (thanks for this!). The director sets the "host" field correctly and all delivery attempts work fine to the estimated backend servers. But when I try to connect via IMAP-/POP3-client (through proxy or direct) it fails with following log messages. It seems, that the director doesn´t set the host field within IMAP/POP sessions before proxying!? auth: Debug: auth client connected (pid=46359) imap-login: ID sent: x-session-id=V3iJmU4biAAK/BAa, x-originating-ip=10.0.0.26, x-originating-port=54408, x-connected-ip=10.0.1.151, x-connected-port=143, x-proxy-ttl=4: user=<>, rip=10.0.1.151, lip=10.0.2.21, session=<RVnAm04bzwAK/FCX> auth: Debug: client in: AUTH 1 PLAIN service=imap session=RVnAm04bzwAK/FCX lip=10.0.2.21 rip=10.0.1.151 lport=143 rport=54735 resp=<hidden> auth: Debug: ldap(tester(a)example.de,10.0.1.151,<RVnAm04bzwAK/FCX>): bind search: base=o=example,c=de filter=(&(|(uid=tester@example.de)(mail=tester@example.de))(!(<cut-cut-cut>)) [...] auth: Debug: client passdb out: OK 1 user=tester(a)example.de director_proxy_maybe=yes lip=10.0.2.21 lport=143 proxy pass=<hidden> imap-login: Debug: Ignoring unknown passdb extra field: director_proxy_maybe imap-login: Debug: Ignoring unknown passdb extra field: lip imap-login: Debug: Ignoring unknown passdb extra field: lport imap-login: Error: proxy: host not given: user=<tester(a)example.de>, method=PLAIN, rip=10.0.2.151, lip=10.0.2.21, session=<RVnAm04bzwAK/FCX> imap-login: Disconnected (internal failure, 1 successful auths): user=<tester(a)example.de>, method=PLAIN, rip=10.0.2.151, lip=10.0.2.21, session=<RVnAm04bzwAK/FCX> Finally the output of "doveadm proxy list" is empty! "doveadm director map" output after a successfull LMTP delivery attempt (before: doveadm director flush all): user hash mail server ip expire time tester(a)example.de 856838019 10.0.2.21 2015-07-20 15:49:18 "doveadm director map" output after a failed IMAP session attempt (before: doveadm director flush all): user hash mail server ip expire time tester(a)example.de 856838019 10.0.2.21 2015-07-20 15:50:02 So, director seems to work in this constellation, but only for LMTP and not for IMAP/POP Proxy :( Has anybody configured this before? Thanks in advance and a lot of greetings from Germany, Dominik ############ My config (mailbox01.example.de. mailbox02.example.de is identical, except the hostname): # doveconf -n # 2.2.18: /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.8 (0c4ae064f307+) # OS: Linux 3.0.101-0.46-default x86_64 SUSE Linux Enterprise Server 11 (x86_64) auth_cache_negative_ttl = 0 auth_cache_ttl = 5 mins auth_debug = yes auth_master_user_separator = "#" auth_mechanisms = plain login auth_verbose = yes auth_verbose_passwords = sha1 director_consistent_hashing = yes director_mail_servers = mailbox-gluster.example.de director_servers = 10.0.2.21:9090 10.0.2.22:9090 disable_plaintext_auth = no imap_metadata = yes listen = mailbox01.example.de lmtp_proxy = yes lmtp_save_to_detail_mailbox = yes lock_method = dotlock login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c session=<%{session}> %k login_trusted_networks = 10.0.2.0/24 mail_access_groups = dovecot mail_attribute_dict = file:Maildir/dovecot-metadata mail_debug = yes mail_fsync = always mail_location = maildir:~/Maildir/ mail_plugins = quota acl managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mmap_disable = yes namespace { inbox = yes location = mailbox Archiv { special_use = \Archive } mailbox Entwürfe { special_use = \Drafts } mailbox "Gelöschte Objekte" { special_use = \Trash } mailbox "Gesendete Objekte" { special_use = \Sent } mailbox Sent { special_use = \Sent } mailbox Trash { special_use = \Trash } mailbox unerwünscht { special_use = \Junk } prefix = INBOX/ separator = / } namespace { disabled = yes list = children location = maildir:%%h/:INDEXPVT=~/dovecot.index.shared/%%u/ prefix = SHARED/%%u/ separator = / type = shared } passdb { args = /***********/passwd.masterusers driver = passwd-file master = yes } passdb { args = /etc/dovecot/ldap.conf driver = ldap } plugin { acl = vfile acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db } postmaster_address = postmaster@%d protocols = " imap lmtp pop3" service auth-worker { user = $default_internal_user } service auth { unix_listener /var/spool/postfix/private/saslauth_via_dovecot { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0666 user = dovecot } } service director { fifo_listener login/proxy-notify { mode = 0600 user = $default_login_user } inet_listener { port = 9090 } unix_listener director-userdb { mode = 0666 } unix_listener login/director { mode = 0666 } } service doveadm { inet_listener { port = 24245 } } service imap-login { executable = imap-login director inet_listener imaps { port = 0 } } service ipc { unix_listener ipc { user = dovecot } } service lmtp { inet_listener lmtp { port = 24 } } service managesieve-login { inet_listener sieve { address = mailbox01.example.de } } service pop3-login { executable = pop3-login director } ssl = no ssl_cipher_list = kEECDH+aRSA+AES256:kEDH+aRSA+AES256:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA ssl_dh_parameters_length = 4096 ssl_options = no_compression ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv2 !SSLv3 !TLSv1.1 userdb { args = /etc/dovecot/ldap.conf driver = ldap } verbose_proctitle = yes protocol lmtp { auth_socket_path = director-userdb mail_plugins = quota notify mail_log } protocol imap { imap_id_log = * mail_plugins = quota fts fts_squat imap_quota mail_log notify acl imap_acl } protocol pop3 { mail_plugins = quota acl pop3_uidl_format = %fan } ################ My /etc/dovecot/ldap.conf: uris = ldap://ldap.example.de pass_filter = (&(|(uid=%u)(mail=%u))(!(<cut-cut-cut>))) pass_attrs = =proxy_maybe=yes, \ =director_proxy_maybe=yes user_filter = (&(|(uid=%u)(mail=%u)(mailAlternateAddress=%u))(!(<cut-cut-cut>))) user_attrs = =master_user=%u, \ =uid=%{ldap:qmailUID:12345}, \ =gid=%{ldap:qmailGID:12345}, \ =home=/mnt/testvol2/%{ldap:mailMessageStore}/%1{ldap:mail}/%{ldap:mail}/, \ =quota_rule=*:bytes=%{ldap:mailQuotaSize:128M} iterate_attrs = mail=user iterate_filter = (objectClass=qmailuser)

1 0

bug in group permission check
by krzf83＠gmail.com 19 Jul '15

19 Jul '15

Jul 19 01:05:27 sv1 dovecot: auth: Error: passwd-file(aa@ddd,89...24,<>): stat(/usr/dovecot-cfg/dom-home/ddd/etc/ddd/shadow) failed: Permission denied (euid=33454(dovecot) egid=33454(dovecot) missing +x perm: /usr/dovecot-cfg/dom-home/ddd, we're not in group 33795(sysgroup), dir owned by 32072:33795 mode=0710) root@sv1 [~]# sudo -u dovecot groups dovecot sysgroup root@sv1 [~]# sudo -u dovecot cat /usr/dovecot-cfg/dom-home/ddd/etc/ddd/shadow <prints content of the file> It seems that dovecot incorecly checks for group permissions not even trying to access file - probably cant handle that dovecot is part of more than 1 group. When its part of single group problem is not occuring.

2 1

feature suggestion: wildcard in userdb
by krzf83＠gmail.com 19 Jul '15

19 Jul '15

feature suggestion: wildcard in userdb aa:x:32009:32012::/home/usr/mail/bb::userdb_quota_rule=*:bytes=700M *:x:32009:32012::/home/usr/mail/bb: That would be usefull in many situation, for example to set default values per domain (userdb per domain) userdb { driver = passwd-file args = /usr/dovecot-cfg/userdb/%d }

1 0

Dovecot - Telnet error
by Sachin Kulkarni1 18 Jul '15

18 Jul '15

Hello All, I have installed dovecot and started it. However when I try to telnet getting below error means dovecot starting is not successful. telnet localhost 10110 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Connection to localhost closed by foreign host. Please advise. Thanks and Regards, Sachin Kulkarni ============================================================================================================================ Disclaimer: This message and the information contained herein is proprietary and confidential and subject to the Tech Mahindra policy statement, you may review the policy at http://www.techmahindra.com/Disclaimer.html externally http://tim.techmahindra.com/tim/disclaimer.html internally within TechMahindra. ============================================================================================================================

4 3

Helper to open "/doc/wiki/.." paths; suggestions
by Christian Jaeger 18 Jul '15

18 Jul '15

I wrote this script to have an easier time looking at the doc paths referenced from the default configuration files (currently using dovecot in Debian oldstable). Feel free to include in the distribution or wherever. Probably a better solution would be to publish the config files with the paths already expanded to the online URL, or a local filesystem path that works (in the latter case, I'd wish the docs would be bundled in html format). I wonder whether to approach the debian maintainer about this or the Dovecot team? Definitely something for the maintainer is to put the bundled docs in a place where I would have expected it (/usr/share/docs/dovecot/wiki/ instead of /usr/share/docs/dovecot-core/dovecot/wiki/, or a dovecot-doc package, also, links or mentions from the doc dirs of all dovecot packages to the docs). Also, I think there should be a README document that serves as the first introduction of the user to how to configure the system: how are the config files split up, what does "!include" mean (why the "!"? Is it a comment char?), other rules on the config file format. I.e. the basics to enable the new user to go about reading the current config and where to find further docs/help. Thanks & Cheers, Christian.

1 1

Getting duplicated mails while using imapc and dsync
by Michael 17 Jul '15

17 Jul '15

Hello list, currently I'm migrating our old mailserver to a new mail architecture that is based on a master-master dovecot setup (two machines). The replication actually works but I'm also syncing our mails from the current mailserver via imapc on a regular schedule. For some reason I've in most (but not all) imapc-synced mailboxes duplicated emails that I also can't deduplicate with doveadm. I've also set up test-mailboxes that I don't sync with imapc and in those I don't have any duplicated mails. My command to sync the mails from the old host to the master-master system looks as follows: doveadm -o imapc_user=$i*dovemig -o imapc_password=<password> -o imapc_host=<oldhost> -o imapc_features="rfc822.size fetch-headers" -o mail_prefetch_count=20 -v -D sync -R -u$EMAIL imapc: &> $LOGS/$i.log So, is this actually the wrong approach to sync mails from the old host to the new one or is it just not recommended to sync them over-and-over again in such a setup via imapc or is it better to sync them only once? Any hint/pointing me to the right solution is greatly appreciated. Michael

1 0

Dovecot-EE repository for Debian 8 (Jessie/stable)
by Bernhard Schmidt 17 Jul '15

17 Jul '15

Hi, are there plans to support Debian 8 (alias stable, alias jessie) in the dovecot-ee repository? Currently there are only squeeze and wheezy repos. The wheezy repo is uninstallable due to an unsatisfyable dependency on libicu48. Of course you can install libicu48 from Wheezy on a Jessie system, but this will break security updates and might not be the best idea for a library like that. Bernhard

1 0

migrate via dsync error Panic: file mail-transaction-log.c: line 271 (mail_transaction_log_rotate): assertion failed: (file->locked)
by wuwei 17 Jul '15

17 Jul '15

hi all when I use dsync migrate users from dovecot2.0.14(maildir Solaris10) to dovecot2.2.15(mdbox debian7) , most of the users migrated well, only one user has a error. migrate cmd: "$dovecotHome"bin/doveadm -Dv -o mail_fsync=never -o imapc_host=$ip backup -R -u $user imapc: dovecot2.2.15 log: doveadm(root): Debug: Loading modules from directory: /home/mail/dovecot/lib/dovecot doveadm(root): Debug: Module loaded: /home/mail/dovecot/lib/dovecot/lib10_quota_plugin.so doveadm(root): Debug: Module loaded: /home/mail/dovecot/lib/dovecot/lib15_notify_plugin.so doveadm(root): Debug: Module loaded: /home/mail/dovecot/lib/dovecot/lib20_fts_plugin.so doveadm(root): Debug: Module loaded: /home/mail/dovecot/lib/dovecot/lib20_mail_log_plugin.so doveadm(root): Debug: Module loaded: /home/mail/dovecot/lib/dovecot/lib20_zlib_plugin.so doveadm(root): Debug: Module loaded: /home/mail/dovecot/lib/dovecot/lib21_fts_lucene_plugin.so doveadm(root): Debug: Loading modules from directory: /home/mail/dovecot/lib/dovecot/doveadm doveadm(root): Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: /home/mail/dovecot/lib/dovecot/doveadm/lib10_doveadm_acl_plugin.so: undefined symbol: acl_user_module (this is usually intentional, so just ignore this message) doveadm(root): Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /home/mail/dovecot/lib/dovecot/doveadm/lib10_doveadm_expire_plugin.so: undefined s ymbol: expire_set_deinit (this is usually intentional, so just ignore this message) doveadm(root): Debug: Module loaded: /home/mail/dovecot/lib/dovecot/doveadm/lib10_doveadm_quota_plugin.so doveadm(root): Debug: Module loaded: /home/mail/dovecot/lib/dovecot/doveadm/lib10_doveadm_sieve_plugin.so doveadm(root): Debug: Module loaded: /home/mail/dovecot/lib/dovecot/doveadm/lib20_doveadm_fts_lucene_plugin.so doveadm(root): Debug: Module loaded: /home/mail/dovecot/lib/dovecot/doveadm/lib20_doveadm_fts_plugin.so doveadm(chenwenguang(a)eachnet.com): Debug: auth input: chenwenguang(a)eachnet.com home=/data/02/eachnet.com/281/721/chenwenguang@eachnet.com uid=1010 gid=1010 mail=mdbox:/ data/02/eachnet.com/281/721/chenwenguang@eachnet.com quota_rule=*:storage=1024MB sieve_dir=/data/02/eachnet.com/281/721/chenwenguang@eachnet.com sieve=/data/02/eachnet. com/281/721/chenwenguang(a)eachnet.com/dovecot.sieve doveadm(chenwenguang(a)eachnet.com): Debug: Added userdb setting: mail=mdbox:/data/02/eachnet.com/281/721/chenwenguang@eachnet.com doveadm(chenwenguang(a)eachnet.com): Debug: Added userdb setting: plugin/quota_rule=*:storage=1024MB doveadm(chenwenguang(a)eachnet.com): Debug: Added userdb setting: plugin/sieve=/data/02/eachnet.com/281/721/chenwenguang@eachnet.com/dovecot.… doveadm(chenwenguang(a)eachnet.com): Debug: Added userdb setting: plugin/sieve_dir=/data/02/eachnet.com/281/721/chenwenguang@eachnet.com doveadm(chenwenguang(a)eachnet.com): Debug: Effective uid=1010, gid=1010, home=/data/02/eachnet.com/281/721/chenwenguang@eachnet.com doveadm(chenwenguang(a)eachnet.com): Debug: Quota root: name=chenwenguang(a)eachnet.com backend=dict args=:redis:host=172.24.202.60:prefix=user_quota/ doveadm(chenwenguang(a)eachnet.com): Debug: Quota rule: root=chenwenguang(a)eachnet.com mailbox=* bytes=1073741824 messages=0 doveadm(chenwenguang(a)eachnet.com): Debug: Quota rule: root=chenwenguang(a)eachnet.com mailbox=Trash bytes=+858993459 (80%) messages=0 doveadm(chenwenguang(a)eachnet.com): Debug: Quota warning: bytes=966367641 (90%) messages=0 reverse=no command=quota-warning 90 chenwenguang(a)eachnet.com doveadm(chenwenguang(a)eachnet.com): Debug: Quota warning: bytes=858993459 (80%) messages=0 reverse=no command=quota-warning 80 chenwenguang(a)eachnet.com doveadm(chenwenguang(a)eachnet.com): Debug: Quota warning: bytes=751619276 (70%) messages=0 reverse=no command=quota-warning 70 chenwenguang(a)eachnet.com doveadm(chenwenguang(a)eachnet.com): Debug: Quota warning: bytes=644245094 (60%) messages=0 reverse=no command=quota-warning 60 chenwenguang(a)eachnet.com doveadm(chenwenguang(a)eachnet.com): Debug: Quota grace: root=chenwenguang(a)eachnet.com bytes=107374182 (10%) doveadm(chenwenguang(a)eachnet.com): Debug: dict quota: user=chenwenguang(a)eachnet.com, uri=redis:host=172.24.202.60:prefix=user_quota/, noenforcing=0 doveadm(chenwenguang(a)eachnet.com): Debug: Namespace inbox: type=private, prefix=, sep=., inbox=yes, hidden=no, list=yes, subscriptions=yes location=mdbox:/data/02/eachn et.com/281/721/chenwenguang@eachnet.com doveadm(chenwenguang(a)eachnet.com): Debug: fs: root=/data/02/eachnet.com/281/721/chenwenguang@eachnet.com, index=, indexpvt=, control=, inbox=, alt= doveadm(chenwenguang(a)eachnet.com): Debug: Namespace : Using permissions from /data/02/eachnet.com/281/721/chenwenguang(a)eachnet.com: mode=0700 gid=default dsync(chenwenguang(a)eachnet.com): Debug: Effective uid=1010, gid=1010, home=/data/02/eachnet.com/281/721/chenwenguang@eachnet.com dsync(chenwenguang(a)eachnet.com): Debug: Quota root: name=chenwenguang(a)eachnet.com backend=dict args=:redis:host=172.24.202.60:prefix=user_quota/ dsync(chenwenguang(a)eachnet.com): Debug: Quota rule: root=chenwenguang(a)eachnet.com mailbox=* bytes=1073741824 messages=0 dsync(chenwenguang(a)eachnet.com): Debug: Quota rule: root=chenwenguang(a)eachnet.com mailbox=Trash bytes=+858993459 (80%) messages=0 dsync(chenwenguang(a)eachnet.com): Debug: Quota warning: bytes=966367641 (90%) messages=0 reverse=no command=quota-warning 90 chenwenguang(a)eachnet.com dsync(chenwenguang(a)eachnet.com): Debug: Quota warning: bytes=858993459 (80%) messages=0 reverse=no command=quota-warning 80 chenwenguang(a)eachnet.com dsync(chenwenguang(a)eachnet.com): Debug: Quota warning: bytes=751619276 (70%) messages=0 reverse=no command=quota-warning 70 chenwenguang(a)eachnet.com dsync(chenwenguang(a)eachnet.com): Debug: Quota warning: bytes=644245094 (60%) messages=0 reverse=no command=quota-warning 60 chenwenguang(a)eachnet.com dsync(chenwenguang(a)eachnet.com): Debug: Quota grace: root=chenwenguang(a)eachnet.com bytes=107374182 (10%) dsync(chenwenguang(a)eachnet.com): Debug: dict quota: user=chenwenguang(a)eachnet.com, uri=redis:host=172.24.202.60:prefix=user_quota/, noenforcing=0 dsync(chenwenguang(a)eachnet.com): Debug: Namespace inbox: type=private, prefix=, sep=., inbox=yes, hidden=no, list=yes, subscriptions=yes location=imapc: dsync(chenwenguang(a)eachnet.com): Debug: imapc(172.24.202.201:143): Looking up IP address dsync(chenwenguang(a)eachnet.com): Debug: imapc(172.24.202.201:143): Connecting to 172.24.202.201:143 dsync(chenwenguang(a)eachnet.com): Debug: imapc(172.24.202.201:143): Server capabilities: IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN dsync(chenwenguang(a)eachnet.com): Debug: imapc(172.24.202.201:143): Authenticating as chenwenguang(a)eachnet.com dsync(chenwenguang(a)eachnet.com): Debug: imapc(172.24.202.201:143): Server capabilities: IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THRE AD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST -STATUS QUOTA dsync(chenwenguang(a)eachnet.com): Debug: imapc(172.24.202.201:143): Authenticated successfully dsync(chenwenguang(a)eachnet.com): Debug: imapc: root=, index=, indexpvt=, control=, inbox=, alt= dsync(chenwenguang(a)eachnet.com): Debug: fts: Indexes disabled for namespace '' dsync(chenwenguang(a)eachnet.com): Debug: brain M: Local mailbox tree: Drafts guid=e0187b65e763143666d22094cedfe6a4 uid_validity=1279693072 uid_next=1 subs=no last_change =0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Local mailbox tree: INBOX guid=c92f64f79f0d1ed01e6d5b314f04886c uid_validity=1279693068 uid_next=134807 subs=no last_ch ange=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain M: Local mailbox tree: Trash guid=7f5af7ba291b2df1a11d573bdb55d7e9 uid_validity=1279693071 uid_next=1 subs=no last_change= 0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Local mailbox tree: Drafts guid=e0187b65e763143666d22094cedfe6a4 uid_validity=1279693072 uid_next=1 subs=no last_change =0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain M: Local mailbox tree: Sent Items guid=34b8141947b9372e94589bd35a54dac5 uid_validity=1279693070 uid_next=1 subs=no last_ch ange=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Local mailbox tree: Trash guid=7f5af7ba291b2df1a11d573bdb55d7e9 uid_validity=1279693071 uid_next=1 subs=no last_change= 0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain M: Local mailbox tree: INBOX guid=c92f64f79f0d1ed01e6d5b314f04886c uid_validity=1279693068 uid_next=1 subs=no last_change= 0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Local mailbox tree: Sent Items guid=34b8141947b9372e94589bd35a54dac5 uid_validity=1279693070 uid_next=1 subs=no last_ch ange=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain M: Local mailbox tree: Junk E-mail guid=9e1a7b3d0b113405571152c94fcf1154 uid_validity=1279693069 uid_next=1 subs=no last_c hange=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Local mailbox tree: Junk E-mail guid=9e1a7b3d0b113405571152c94fcf1154 uid_validity=1279693069 uid_next=1 subs=no last_c hange=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain M: Remote mailbox tree: INBOX guid=c92f64f79f0d1ed01e6d5b314f04886c uid_validity=1279693068 uid_next=134807 subs=no last_c hange=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain M: Remote mailbox tree: Drafts guid=e0187b65e763143666d22094cedfe6a4 uid_validity=1279693072 uid_next=1 subs=no last_chang e=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain M: Remote mailbox tree: Trash guid=7f5af7ba291b2df1a11d573bdb55d7e9 uid_validity=1279693071 uid_next=1 subs=no last_change =0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain M: Remote mailbox tree: Sent Items guid=34b8141947b9372e94589bd35a54dac5 uid_validity=1279693070 uid_next=1 subs=no last_c hange=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain M: Remote mailbox tree: Junk E-mail guid=9e1a7b3d0b113405571152c94fcf1154 uid_validity=1279693069 uid_next=1 subs=no last_ change=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Remote mailbox tree: Drafts guid=e0187b65e763143666d22094cedfe6a4 uid_validity=1279693072 uid_next=1 subs=no last_chang e=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Remote mailbox tree: Trash guid=7f5af7ba291b2df1a11d573bdb55d7e9 uid_validity=1279693071 uid_next=1 subs=no last_change =0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Remote mailbox tree: Sent Items guid=34b8141947b9372e94589bd35a54dac5 uid_validity=1279693070 uid_next=1 subs=no last_c hange=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Remote mailbox tree: INBOX guid=c92f64f79f0d1ed01e6d5b314f04886c uid_validity=1279693068 uid_next=1 subs=no last_change =0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Remote mailbox tree: Junk E-mail guid=9e1a7b3d0b113405571152c94fcf1154 uid_validity=1279693069 uid_next=1 subs=no last_ change=0 last_subs=0 dsync(chenwenguang(a)eachnet.com): Debug: brain S: Skipping unchanged mailbox e0187b65e763143666d22094cedfe6a4 dsync(chenwenguang(a)eachnet.com): Panic: file mail-transaction-log.c: line 271 (mail_transaction_log_rotate): assertion failed: (file->locked) dsync(chenwenguang(a)eachnet.com): Error: Raw backtrace: /home/mail/dovecot/lib/dovecot/libdovecot.so.0(+0x750bf) [0x7fe817a980bf] -> /home/mail/dovecot/lib/dovecot/libdo vecot.so.0(default_fatal_handler+0x2a) [0x7fe817a9819a] -> /home/mail/dovecot/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fe817a4a335] -> /home/mail/dovecot/lib/dovecot/ libdovecot-storage.so.0(+0xd499f) [0x7fe817ddb99f] -> /home/mail/dovecot/lib/dovecot/libdovecot-storage.so.0(mail_index_write+0x1e6) [0x7fe817ddac46] -> /home/mail/dove cot/lib/dovecot/libdovecot-storage.so.0(mail_index_sync_commit+0x2db) [0x7fe817dd2f2b] -> /home/mail/dovecot/lib/dovecot/libdovecot-storage.so.0(imapc_mailbox_sync_init +0x20d) [0x7fe817d7690d] -> /home/mail/dovecot/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x35) [0x7fe817d89e05] -> /home/mail/dovecot/lib/dovecot/libdovecot -storage.so.0(mailbox_sync+0x27) [0x7fe817d89f27] -> /home/mail/dovecot/bin/doveadm(dsync_brain_slave_recv_mailbox+0x7b) [0x430aeb] -> /home/mail/dovecot/bin/doveadm(ds ync_brain_run+0x256) [0x42e726] -> /home/mail/dovecot/bin/doveadm() [0x414ec0] -> /home/mail/dovecot/bin/doveadm() [0x416a7d] -> /home/mail/dovecot/bin/doveadm(doveadm_ mail_try_run+0x231) [0x417721] -> /home/mail/dovecot/bin/doveadm(main+0x3a8) [0x413bf8] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7fe8176b5ead] -> / home/mail/dovecot/bin/doveadm() [0x413e11] dovecot2.2.15 conf # 2.2.15: /home/mail/dovecot/etc/dovecot/dovecot.conf doveconf: Warning: service auth { client_limit=80960 } is lower than required under max. load (300000) doveconf: Warning: service anvil { client_limit=60000 } is lower than required under max. load (240003) # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.4 auth_cache_negative_ttl = 1 days auth_cache_size = 1000 k auth_cache_ttl = 1 days auth_debug = yes auth_debug_passwords = yes auth_master_user_separator = * auth_mechanisms = plain login debug_log_path = /data/logs/dovecot/logs/dovecot.log default_client_limit = 60000 default_internal_user = vmail default_login_user = dovecotauth default_process_limit = 60000 disable_plaintext_auth = no first_valid_gid = 1007 first_valid_uid = 1007 imapc_features = rfc822.size fetch-headers imapc_host = 172.24.173.212 imapc_password = 111111 imapc_user = %u info_log_path = /data/logs/dovecot/logs/dovecot.log log_path = /data/logs/dovecot/logs/dovecot.log mail_debug = yes mail_fsync = never mail_plugins = fts fts_lucene mail_log notify quota zlib mail_prefetch_count = 1 maildir_very_dirty_syncs = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox "Junk E-mail" { auto = subscribe special_use = \Junk } mailbox "Sent Items" { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = . } passdb { args = /home/mail/dovecot/etc/dovecot/passwd.masterusers driver = passwd-file master = yes } passdb { args = /home/mail/dovecot/bin/CheckPassword driver = checkpassword } plugin { fts = lucene fts_lucene = whitespace_chars=@. mail_debug = yes mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename append mail_log_fields = uid box msgid size quota = dict:%u::redis:host=172.24.202.60:prefix=user_quota/ quota_rule2 = Trash:storage=+80%% quota_warning = storage=90%% quota-warning 90 %u quota_warning2 = storage=80%% quota-warning 80 %u quota_warning3 = storage=70%% quota-warning 70 %u quota_warning4 = storage=60%% quota-warning 60 %u sieve = ~/.dovecot.sieve sieve_dir = ~/sieve welcome_letter_path = /home/mail/dovecot/etc/welcome welcome_letter_url = http://202.108.252.162:8080/domainmail zlib_save = gz zlib_save_level = 6 } pop3_fast_size_lookups = yes pop3_no_flag_updates = yes postmaster_address = postmastar@%d protocols = imap pop3 sieve lmtp service auth-worker { user = dovecotauth } service auth { client_limit = 80960 unix_listener /home/mail/postfix/var/spool/postfix/private/auth-client { group = postfix mode = 0660 user = postfix } } service imap-login { inet_listener imap { port = 143 } service_count = 0 vsz_limit = 2 G } service imap { process_limit = 60240 } service lmtp { inet_listener { port = 11000 } } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 0 vsz_limit = 2 G } service managesieve { process_limit = 80960 } service pop3-login { inet_listener pop3 { port = 110 } service_count = 0 vsz_limit = 2 G } service quota-warning { executable = script /home/mail/dovecot/bin/quota-warning.sh unix_listener quota-warning { user = vmail } user = vmail } ssl = no submission_host = 172.24.203.8:25 userdb { driver = prefetch } userdb { args = /home/mail/dovecot/etc/dovecot/dovecot-dict-auth.conf.ext driver = dict } protocol imap { imap_logout_format = bytes=%i/%o mail_plugins = fts fts_lucene mail_log notify quota zlib imap_quota imap_zlib } protocol pop3 { pop3_logout_format = bytes=%i/%o, top=%t/%p, retr=%r/%b, del=%d/%m, size=%s } protocol sieve { mail_max_userip_connections = 1000 mail_plugins = fts fts_lucene mail_log notify quota zlib quota managesieve_implementation_string = Dovecot Pigeonhole managesieve_logout_format = bytes=%i/%o managesieve_max_compile_errors = 10 managesieve_max_line_length = 65536 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave } need you help!thank you! -- View this message in context: http://dovecot.2317879.n4.nabble.com/migrate-via-dsync-error-Panic-file-mai… Sent from the Dovecot mailing list archive at Nabble.com.

1 0

Quota policy service not rejecting messages when user over quota
by james＠lottspot.com 17 Jul '15

17 Jul '15

For some very odd reason, the quota-status service is failing to enforce quotas. Every other aspect of my configuration is working with absolutely no problems. When I attempt delivery via LTMP, the message is, as expected, rejected due to the user's inbox being full. root@smtp:/usr/local/etc/mail-config # nc -U /var/spool/postfix/private/dovecot-lmtp < 220 mx0.lottspot.com Dovecot ready. > LHLO localhost < 250-mx0.lottspot.com < 250-8BITMIME < 250-ENHANCEDSTATUSCODES < 250 PIPELINING > MAIL FROM:<root@localhost> < 250 2.1.0 OK > RCPT TO:<james(a)lottspot.vpn> < 552 5.2.2 <james(a)lottspot.vpn> Quota exceeded (mailbox for user is full) The policy service however, just lets everything go right through. I know that accessing the userdb is not an issue, because I passed a bogus user before passing my real user and received the expected response. root@smtp:/usr/local/etc/mail-config # nc -U /var/spool/postfix/private/policy-quota > recipient=noop(a)fake.tld > < action=551 User not found < > recipient=james(a)lottspot.vpn > < action=250 Quota status success < I'm using Dovecot 2.2.15, and I have included my quota configuration below. If anyone wants to see full doveconf -n output, I can provide it, but figured it was a bit much for this case. Thanks in advance for any pointers! --> Note: I'm the quota_status_* directives have been set as is for testing purposes only. I'm fully aware not to do that in production. plugin { quota = maildir:User quota quota_rule = *:bytes=1G quota_rule2 = Trash:storage=+10%% quota_status_success = "250 Quota status success" quota_status_nouser = "551 User not found" quota_status_overquota = "552 5.2.2 Recipient mailbox is full" } service quota-status { executable = quota-status -p postfix unix_listener /var/spool/postfix/private/policy-quota { user = postfix group = wheel mode = 0666 } }

2 1

[Sieve] Unable to fileinto subfolders
by james＠lottspot.com 17 Jul '15

17 Jul '15

Hello again list! I am configuring a server running Dovecot 2.2.15 (Pigeonhole 0.4.6), and I am having an issue with Sieve scripts where I cannot sort messages into a subfolder of a mailbox. An email which is matched by the following script: require "fileinto"; if header :contains "Subject" "[SORT ME]" { fileinto "INBOX.Sorted"; } Yields the following error: Jul 16 18:54:46 smtp dovecot: lmtp(james(a)lottspot.vpn): Error: DiJmNGZgqFWLFAEANWXNPw: sieve: msgid=<4973528.yvy4Yu8Tt4@arch_project>: failed to store into mailbox 'INBOX.Sorted': Character not allowed in mailbox name: '.' As far as I can tell based on the Sieve usage page in the wiki (http://wiki2.dovecot.org/Pigeonhole/Sieve/Usage) this is *supposed* to work. I have included my namespace configuration below, but if anyone wants the whole doveconf -n, I will gladly provide it. Thanks in advance for any help! namespace inbox { type = private separator = / prefix = inbox = yes mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } } namespace { type = shared separator = / prefix = shared/%%d/%%n/ location = maildir:/home/%%d/%%n/mail:INDEX=~/indexes/%%d/%%n:INDEXPVT=~/indexes/%%d/%%n subscriptions = no list = children }

3 2

question on Dovecot replication
by Arnold Wang 17 Jul '15

17 Jul '15

I'm running Dovecot 2.2.x and have a question on its replication capability. I plan to run Dovecot in two different sites with two nodes at each site. My question is how many replication partners can each Dovecot node have? Can I define three "mail_replica" entries in every node so any message received by one node will be replicated to three other nodes automatically? Thanks in advance for your help.

1 0

Admin access to sieve filters with managesieve
by Christian Theune 15 Jul '15

15 Jul '15

Hi, I’ve been a long-time user of Cyrus and started using sieve with Dovecot recently. A question that came up is: how do I access a users’s sieve scripts through managesieve without their credentials? Managesieve allows separating authentation and the corresponding mailbox identification, right? That’s what I used with cyrus sieve all the time. :) I didn’t find documentation in the wiki or googling where to configure someone as admin in Dovecot so he can access foreign sieve scripts through managesieve. Pointers? Am I using the right words? Cheers, Christian — Christian Theune · ct(a)flyingcircus.io · +49 345 219401 0 Flying Circus Internet Operations GmbH · http://flyingcircus.io Forsterstraße 29 · 06112 Halle (Saale) · Deutschland HR Stendal HRB 21169 · Geschäftsführer: Christian. Theune, Christian. Zagrodnick

3 3

doveadm search -A problem with dropped privileges
by Sebastian Kricner 14 Jul '15

14 Jul '15

Hello, if you want to answer to this mail, please send it directly to me. I have found a big issue with the following command "doveadm -search -A". It whatsoever works by setting doveadm_worker_count = 0 in the dovecot.conf configuration file. The problem is that doveadm-server or something similar uses privileges of "nobody" and so it fails searching e-mails. Instead also the process tries to create a maildir for "nobody": Debug: Namespace : /var/mail/nobody doesn't exist yet, using default permissions Debug: Namespace : Using permissions from /var/mail/nobody: mode=0700 gid=default Error: User initialization failed: Namespace '': mkdir(/var/mail/nobody) failed: Permission denied (euid=65534(nobody) egid=65534(nobody) missing +w perm: /var/mail, we're not in group 12(mail), dir owned by 0:12 mode=0775) Error: search: User init failed Error: userdb lookup: connect(/var/run/dovecot//auth-userdb) failed: Permission denied (euid=65534(nobody) egid=65534(nobody) missing +r perm: /var/run/dovecot//auth-userdb, we're not in group 12(mail), dir owned by 0:0 mode=0755) Error: search: User lookup failed: Internal error occurred. Refer to server log for more information. Even after setting permissions, so that the process can create a maildir for "nobody" in the /var/mail location, it fails to "setresgid" to the particular user to be scanned. It can´t work because it is not possible to gain other user privileges from another user. # 2.2.16: /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.7 # OS: Linux Gentoo Base System release 2.2 auth_cache_negative_ttl = xx mins auth_cache_size = xx M auth_cache_ttl = xx mins auth_mechanisms = xx xx auth_worker_max_count = xx base_dir = /var/run/dovecot/ default_process_limit = xx dict { expire = sqlite:/xx } doveadm_worker_count = 1 first_valid_gid = xx first_valid_uid = xx login_greeting = xx.xx mail_location = maildir:/xx/xx/%u mail_privileged_group = xx managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate passdb { args = scheme=SHA512 /xx/xx/xx.xx driver = passwd-file } plugin { expire = xx expire2 = xx expire_dict = proxy::expire sieve = ~/.xx.xx sieve_dir = ~/.xx } protocols = imap sieve service auth { unix_listener auth-client { group = xx mode = 0660 } unix_listener auth-userdb { group = xx mode = 0660 } } service dict { unix_listener dict { mode = 0666 } } service imap-login { inet_listener imap { port = 0 } process_limit = 6 service_count = 1 } ssl_cert = </xx/xx/xx/xx.xx.xx ssl_key = </xx/xx/xx/xx.xx.xx ssl_parameters_regenerate = xx days userdb { driver = passwd } protocol lda { mail_plugins = sieve expire } protocol imap { imap_idle_notify_interval = xx mins mail_max_userip_connections = xx mail_plugins = expire } Regards Sebastian Kricner -- http://tuxwave.net -- the difference to think makes it real!

1 0

does dovecot support aio(asynchronous IO)
by boyd 13 Jul '15

13 Jul '15

Dear, Does dovecot support aio(asynchronous IO)? Or do we have a plan/need to support it? Thanks!

1 0

doveadm save message ...
by Hardy Flor 11 Jul '15

11 Jul '15

How can I set the flags for a saved message without search?

2 1

Error while executing dovecot
by Sachin Kulkarni1 10 Jul '15

10 Jul '15

Hello All, I am trying to execute dovecot by below command /opt/app/dovecot/latest/sbin/dovecot -c /opt/app/dovecot/latest/etc/dovecot/dovecot.conf I am getting below error doveconf: Fatal: Error in configuration file /opt/app/dovecot/latest/etc/dovecot/dovecot.conf: default_login_user doesn't exist: dovenull please guide me to resolve this. Thanks and Regards, Sachin ============================================================================================================================ Disclaimer: This message and the information contained herein is proprietary and confidential and subject to the Tech Mahindra policy statement, you may review the policy at http://www.techmahindra.com/Disclaimer.html externally http://tim.techmahindra.com/tim/disclaimer.html internally within TechMahindra. ============================================================================================================================

2 1

Re: Systemd and listen restriction to localhost not enforced
by Joseph Tam 09 Jul '15

09 Jul '15

Sven Strickroth <sven(a)cs-ware.de> writes: > in /etc/dovecot/conf.d/10-master.conf I have restricted IMAP to > localhost only: > > service imap-login { > inet_listener imap { > address = 127.0.0.1 > #port = 143 > } > inet_listener imaps { > #port = 993 > #ssl = yes > } > } > > However, /lib/systemd/system/dovecot.socket make it listen on > 0.0.0.0:143 and [::]:143 causing the service being available to > the public which it should not. - IMHO this is a security issue. I don't know much about systemd, but you'll probably need dovecot configuration listen = 127.0.0.1 Joseph Tam <jtam.home(a)gmail.com>

1 0

Systemd and listen restriction to localhost not enforced
by Sven Strickroth 09 Jul '15

09 Jul '15

Hi, in /etc/dovecot/conf.d/10-master.conf I have restricted IMAP to localhost only: service imap-login { inet_listener imap { address = 127.0.0.1 #port = 143 } inet_listener imaps { #port = 993 #ssl = yes } } However, /lib/systemd/system/dovecot.socket make it listen on 0.0.0.0:143 and [::]:143 causing the service being available to the public which it should not. - IMHO this is a security issue. PS: When starting dovecot I got: Jul 6 22:52:14 srv1 dovecot[19921]: Error: systemd listens on port 143, but it's not configured in Dovecot. Closing. Jul 6 22:52:14 srv1 dovecot: master: Error: systemd listens on port 143, but it's not configured in Dovecot. Closing. -- Best regards, Sven Strickroth PGP key id F5A9D4C4 @ any key-server

1 0

vsz_limit of service doveadm "ignored"?
by Philipp 08 Jul '15

08 Jul '15

Hello, dovecot 2.2.18 on CentOS6.5 Jul 08 11:53:44 dsync-server(system): Fatal: master: service(doveadm): child 32554 returned error 83 (Out of memory (service doveadm { vsz_limit=521 MB }, you may need to increase it) - set CORE_OUTOFMEM=1 environment to get core dump) I tried increasing to 1 G, 1024 M or even disabling via value of zero -- to no change. Every other service has the famous 18446744073709551615 B limit. default_vsz_limit = 2 G The second node with the same setup/config is happily accepting a higher value, since both come from the same provisioning I cannot see (or expect) differences around ulimit and thelike. The configuration comes from a single file, so no include drama or such. Any pointers why the setting is being ignored?

1 0

ESEARCH multiple folders
by Peter Chiochetti 08 Jul '15

08 Jul '15

FTS-Solr is blazingly fast; yet searching e.g. an archive with subfolders still is slow; I learned, that this is a feature/bug of the imap protocol. So I'd like to ask: Does or will dovecot support the "IMAP4 Multimailbox SEARCH Extension" specified in RFC 7377? -- Kind regards Peter

2 2

Scalability with high density servers and proxies, TCP port limits
by Christian Balzer 08 Jul '15

08 Jul '15

Hello, first post in 3 years, kinda shows how painless Dovecot is. ^o^ Also this isn't really a dovecot issue, alas it's involved and since there are some large scale implementations of it I hope somebody here has some insights I might have missed. Currently we're running this setup: 1. LVS (DR mode) in a HA configuration (2 node cluster) 2. Dovecot in proxy mode on a 2 node cluster 3. Dovecot on actual mailbox servers (dual node DRBD clusters) There are about 500k users, but most of them use POP3, so there are usually less than 6k IMAP sesions at any given time. This is about to change, I'm looking at potentially millions of users who will have all semi-permanent IMAP sessions. We already have a pure SSD based mailbox cluster and based on the experiences with that another one is on order that will be able to easily handle about 500k users with regards to IOPS and other needs. However there's the issue of having all these concurrent IMAP sessions. Namely, running out of ephemeral ports. Lets assume 2 million users and 50k ports per IP and revisit the setup above. 1. LVS should have no problem, from experience and tests I expect a well tuned and spec'ed machine to handle millions of connections. This is in DR mode, in NAT mode I assume things would run into a wall a lot quicker. But even if LVS should run out of steam, there's a wide selection of high capacity load balancers available. 2. Here is where the fun starts. Each IMAP session that gets proxied to the real mailbox server needs a port for the outgoing connection. So to support 2 million sessions we need 40 IP addresses here. Ouch. And from a brief test having multiple IP addresses per server won't help either (Dovecot unsurprisingly picks the main IP when establishing a proxy session to the real mailbox), at least not with just one default GW. 3. All of this gets repeated on the actual mailbox servers, by either having a lot of low density servers or (preferably) high density servers with multiple IP addresses. Am I on track so far or missing something obvious? How many concurrent connections do you (hello Timo) think dovecot in proxy mode can handle? High performance mode of course in this case. I'm interested in internal limitations, assume that CPU and RAM are amply supplied. Any and all feedback is appreciated. Regards, Christian -- Christian Balzer Network/Systems Engineer chibi(a)gol.com Global OnLine Japan/Fusion Communications http://www.gol.com/

2 3

HELP: wrinting dovecot-sql.conf to authenticate to an existing database
by Filippo Zeus 08 Jul '15

08 Jul '15

hi all, can anyone help me with dovecot-sql.conf please ? I'm not a mysql expert and I'am trying to authenticate dovecot2 to an existing database. I have a database "egroupware" with table "egw_accounts". The field "account_lid" is the full email address and "account_pwd" is the password in Blowfish format. Here is my dovecot-sql.conf driver = mysql connect = host=localhost dbname=egroupware user=egroupware password=********* default_pass_scheme = BLF-CRYPT password_query = SELECT account_pwd AS password FROM egw_accounts WHERE account_lid = '%u' when I try to login to POP or IMAP I got this error in mail.log/mail.info Error: sql(hidden@mydomain.com,::1): Invalid password in passdb: crypt() failed: Invalid argument auth: Debug: client passdb out: FAIL#0111#011user=hidden(a)mydomain.com dovecot: pop3-login: Debug: Ignoring unknown passdb extra field: I think I'm having trouble with the password value that is stored in the account_pwd as: {crypt}$2a$12$XTAolzXgwMC211MuZELQUedPv9tjZNs7Osh97PnZ50pAKuk3WPGmS Reading at http://wiki2.dovecot.org/Authentication/PasswordSchemes I suppose that the heading "{crypt}$2a$" instead of a simple "$2a$" (witch identifies a Blowfish password) is my problem. How can I fix this ? Here is my dovecot -n output: # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.16.0-4-amd64 x86_64 Debian 8.1 xfs auth_cache_size = 64 M auth_debug = yes auth_mechanisms = plain login lda_mailbox_autocreate = yes log_timestamp = "%Y-%m-%d %H:%M:%S " login_log_format_elements = USER=<%u> METHOD=%m FROM=%r TO=%l %c mail_location = maildir:/var/mail/%d/%n/Maildir mail_plugins = quota mail_privileged_group = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave spamtest spamtestplus imapflags notify namespace inbox { inbox = yes location = mailbox Archive { auto = no special_use = \Archive } mailbox "Deleted Messages" { auto = no special_use = \Trash } mailbox Drafts { special_use = \Drafts } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { auto = no special_use = \Junk } mailbox Trash { auto = no special_use = \Trash } prefix = separator = . } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { quota = maildir:User quota quota_exceeded_message = Storage quota for this account has been exceeded, please try again later. quota_grace = 10%% quota_rule = *:storage=6G quota_rule2 = Trash:storage=+100M quota_rule3 = spam:ignore quota_warning = storage=95%% quota-warning 95 %u sieve = ~/dovecot.sieve sieve_before = /var/mail/sieve/before.sieve sieve_default = /var/mail/sieve/default.sieve sieve_dir = ~/sieve.d sieve_extensions = +notify +imapflags +spamtest +spamtestplus +relational +comparator-i;ascii-numeric sieve_global_dir = /var/mail/sieve/global.d sieve_max_script_size = 1M } postmaster_address = postmaster@%d protocols = " imap sieve pop3 sieve" service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } } service managesieve-login { inet_listener sieve { port = 4190 } service_count = 1 vsz_limit = 64 M } service managesieve { process_limit = 15 } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { user = vmail } user = dovecot } ssl = required ssl_cert = </etc/ssl/dharma/mail/mail_antonica_it.crt ssl_key = </etc/ssl/dharma/mail/mail_antonica_it.key userdb { args = uid=vmail gid=vmail home=/var/mail/%d/%n driver = static } protocol lda { mail_plugins = quota sieve } protocol imap { mail_plugins = quota imap_quota } protocol sieve { mail_max_userip_connections = 10 managesieve_logout_format = bytes=%i/%o managesieve_max_line_length = 65536 }

2 1

Autocreate folders with specific permissions
by Fabio S. Schmidt 07 Jul '15

07 Jul '15

Hi, I have Dovecot 2.1 deployed running about 65k mailboxes. We need to create a specific folder for all users with specific permissions. I mean, the user could not delete or rename the folder. To create the folder automatically I have used the autocreate, but is there any way to set specific permissions on those folders? My best regards.

1 0

Problem with IMAP-Proxy and M$ Exchange-Server
by Luca Bertoncello 07 Jul '15

07 Jul '15

Hi List! I **HATE** Exchange-Server. I think it's not able to manage E-Mails, but we have to use it at work... Well, we need to read the E-Mails from outside, so I configured Dovecot with IMAPC to connect to the Exchange-Server. It works, but I have a problem... If I receive an E-Mail, and I read it from my phone (for example), I see in Outlook that the E-Mail as been read. If I move the E-Mail in another folder from my phone, I see in Outlook the E-Mail in the new folder **AND** in the INBOX. If I check my E-Mail from another phone (or Mail-Client), I see the E-Mail just in the new folder, so I think, the Exchange-Server did move it. But Outlook does not get this information... Any idea how can I solve my problem? Thanks Luca Bertoncello (lucabert(a)lucabert.de)

1 0

Large jumps in dovecot-uidlist
by Mark 07 Jul '15

07 Jul '15

Since upgrading to Debian Wheezy I have been observing large jumps in the value stored in dovecot-uidlist. The effect of these jumps is to confuse some mail clients (Thunderbird, Opera Mail) causing them not to display messages from a (random?) point in time onwards in the affected folder. I have been unable to determine the root cause of these jumps. What I do know: 1. I never observed the problem while running Debian Squeeze. 2. The only way I have found to fix the issue is to remove all the dovecot* files from the affected folder and restart dovecot. I have tried removing various subsets of the dovecot* files but haven't yet found a subset that works. 3. I first tried upgrading from Squeeze to Wheezy within a few weeks of the Wheezy release. At that point the problem occurred so frequently that I couldn't sync my mail client with my mail box. Multiple folders exhibited this problem and while I was fixing them the problem appeared in other folders. I was unable to reach a point where the system was stable so I reverted back to Squeeze. 4. Some time later (I think a year but I am not sure) I tried the upgrade to Wheezy again. This time the system was stable. After a few days I noticed that the problem was still occurring but less frequently. Since then I have been fixing the problem as I notice it and experimenting with various settings (mainly locking related) without success. I now have a cron job that looks for problematic folders and fixes them when found. 5. I have updated Dovecot packages to those from Jessie via wheezy-backports and the problem still occurs. 6. Dovecot is installed along with postfix, amavisd-new, clamav-daemon, procmail and fetchmail. 7. The mail server is running on a eSATA SheevaPlug that boots of an external USB drive. All user home dirs (and associated mailboxes) are located on a LUKS/ext3 encrypted partition. 8. The output of dovecot -n may be found at the end of this mail. 9. Uid values for the three most recent instances of this problem are: 3801596527, 3371927249, 3443181615 10. Some folders seem more susceptible to this problem but I have not been able to identify any common factors/triggers. 11. The problem occurs - on average - once a day. I am happy to provide any further information, configure any debug logging and/or test suggested configuration settings that may help track down the root cause of this problem. Any help gratefully appreciated. Mark # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-kirkwood armv5tel Debian 7.8 mail_debug = yes mail_location = maildir:~/Maildir mail_max_userip_connections = 100 namespace { inbox = yes location = mailbox { special_use = \Drafts name = Drafts } mailbox { special_use = \Junk name = Junk } mailbox { special_use = \Sent name = Sent } mailbox { special_use = \Sent name = Sent Messages } mailbox { special_use = \Trash name = Trash } prefix = name = inbox } passdb { driver = pam } protocols = " imap" service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service { unix_listener { group = postfix mode = 0666 user = postfix path = /var/spool/postfix/private/auth-client } name = auth } service config { name = config } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service { inet_listener { port = 0 name = imap } inet_listener { port = 993 ssl = yes name = imaps } process_min_avail = 5 name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service { executable = imap postlogin name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service { executable = script-login -d rawlog name = postlogin } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } ssl_cert = </etc/ssl/certs/smtpd.crt ssl_cipher_list = HIGH:MEDIUM:!aNULL:!MD5:!RC4 ssl_key = </etc/ssl/private/smtpd.key userdb { driver = passwd } protocol imap { service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap { name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service login/imap { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } }

2 4

Are the Dovecot Enterprise Edition Ubuntu 14.04 packages stable?
by deoren 07 Jul '15

07 Jul '15

I recently begun to migrate mail services to a new box so I could retrofit an existing box. I took this opportunity to check back on the official Dovecot Enterprise Edition (EE) pages to see if support has been added for Ubuntu 14.04 LTS. I never could find the information on the dovecot.fi website, but taking my existing credentials for Dovecot EE repo access and looking at the root path I see that 14.04 packages are available from the APT repo. Are those stable or experimental? I have an Ubuntu 12.04 box I've kept around just for Dovecot EE that I'd like to move to 14.04 if the packages are stable. p.s. Thank you for continuing to provide access for existing users of the repo, but what would new users need to do to obtain access? Thanks for your time.

1 0

Dovecot - Config file details
by Sachin Kulkarni1 07 Jul '15

07 Jul '15

Hello All, We want to install / configure and test Dovecot. We are doing it for the first time. After installation we are now looking for configuration file and need to know significance of below params and what values we should provide ? protocols = listen = base_dir = login_greeting = Please help. Thanks and Regards, Sachin Kulkarni ============================================================================================================================ Disclaimer: This message and the information contained herein is proprietary and confidential and subject to the Tech Mahindra policy statement, you may review the policy at http://www.techmahindra.com/Disclaimer.html externally http://tim.techmahindra.com/tim/disclaimer.html internally within TechMahindra. ============================================================================================================================

2 1

Questions about hardlinks, alternate storage and compression
by Gionatan Danti 06 Jul '15

06 Jul '15

Hi all, I have some questions about hardlinks, alternate storage and compression. I already scanned the list for related information and I have an idea of how things works, but I would like to have a definite answer. System spec: - CentOS 6.6 x64 - dovecot-2.0.9-8.el6_6.4.x86_64 RPM package/version - sdbox mail store 1) About hardlinks: when sending the same message to two different recipients, I see that the two u.x files are created as two different files. Diffing them, I see that the only difference is a single char (see [1] for an example). My questions are: a) it is possible to tell dovecot to create a single file + a single hardlink (linkref=2)? As other IMAP servers support that features (eg: Cyrus, CommunigatePro, etc) I am wondering if I missed something in configuring dovecot... b) If it is not possible, can I run a script that compare the various files and substitute equal ones (minus the changing line) with hardlinks, or it will confuse dovecot? As a side note, why the changing line ever exists? 2) About alternate storage and compression: actually, I use a single mail_location without compression. I would like to have an alternate storage and to enable compression on it only, leaving the main location without compression. I if understand it correctly, it _should_ be done using a command similar to "doveadm -Dv -o "plugin/zlib_save=gz" altmove -uu testuser sentbefore 8d". I'm right thinking that it should work? I will really end with a primary uncompressed mail store and an alternate, zlib-compressed one? Thank you all and sorry if I did some naive questions. [1] 63c63 < G2fd0811c64be8e553d970000eaa8309f --- > G2ed0811c64be8e553d970000eaa8309f -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti(a)assyoma.it - info(a)assyoma.it GPG public key ID: FF5F32A8

1 2

Dovecot LMTP tries to access a directory of a different user, than the one it actually changed to.
by Ernest Deak 06 Jul '15

06 Jul '15

Hello, I encountered a problem when trying to send an email to multiple recipients. === LOG === ... cut ... Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106): Debug: none: root=, index=, control=, inbox= Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106): Connect from local Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106): Debug: Loading modules from directory: /usr/lib64/dovecot Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106): Debug: Module loaded: /usr/lib64/dovecot/lib90_sieve_plugin.so Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106): Debug: auth input: han.solo system_groups_user=han.solo uid=805 gid=800 home=/home/han.solo Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106): Debug: auth input: tester system_groups_user=tester uid=802 gid=800 home=/home/tester Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106): Debug: auth input: vader system_groups_user=vader uid=804 gid=800 home=/home/vader Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, han.solo): Debug: Effective uid=805, gid=800, home=/home/han.solo Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, han.solo): Debug: fs: root=/home/han.solo/mail, index=, control=, inbox=/var/mail/han.solo Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, han.solo): Debug: 70NxN1FlllUqXgAA0vrzwA: sieve: user's script path /home/han.solo/.dovecot.sieve doesn't exist (using global script path in stead) Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, han.solo): Debug: 70NxN1FlllUqXgAA0vrzwA: sieve: user has no valid personal script Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, han.solo): Debug: 70NxN1FlllUqXgAA0vrzwA: sieve: no scripts to execute: reverting to default delivery. Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, han.solo): 70NxN1FlllUqXgAA0vrzwA: msgid=<55966551.IfKOMu/T0WTB9M5x%vader at dhcp90.#####>: saved mail to INBOX Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, tester): Debug: Effective uid=802, gid=800, home=/home/tester Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, tester): Debug: fs: root=/home/tester/mail, index=, control=, inbox=/var/mail/tester Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, tester): Debug: 70NxN1FlllUqXgAA0vrzwA: sieve: user's script path /home/tester/.dovecot.sieve doesn't exist (using global script path in stead) Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, tester): Debug: 70NxN1FlllUqXgAA0vrzwA: sieve: user has no valid personal script Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, tester): Debug: 70NxN1FlllUqXgAA0vrzwA: sieve: no scripts to execute: reverting to default delivery. Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, tester): Error: stat(/home/han.solo/mail/.imap/INBOX/dovecot.index.log) failed: Permission denied (euid=802(tester) egid=800(kerber) missing +x perm: /home/han.solo, euid is not dir owner) Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, tester): Error: open(/home/han.solo/mail/.imap/INBOX/dovecot.index) failed: Permission denied (euid=802(tester) egid=800(kerber) missing +x perm: /home/han.solo, euid is not dir owner) Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, tester): 70NxN1FlllUqXgAA0vrzwA: msgid=<55966551.IfKOMu/T0WTB9M5x%vader at dhcp90.#####>: save failed to INBOX: BUG: Unknown internal error Jul 3 12:34:57 dhcp90 sendmail[24121]: t63AYvn5024116: to=<tester at dhcp90.#####>, ctladdr=<vader at dhcp90.#####> (804/800), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=91062, relay=localhost, dsn=4.2.0, stat=Deferred: 451 4.2.0 <tester> BUG: Unknown internal error Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, vader): Debug: Effective uid=804, gid=800, home=/home/vader Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, vader): Debug: fs: root=/home/vader/mail, index=, control=, inbox=/var/mail/vader Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, vader): Debug: 70NxN1FlllUqXgAA0vrzwA: sieve: user's script path /home/vader/.dovecot.sieve doesn't exist (using global script path in stead) Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, vader): Debug: 70NxN1FlllUqXgAA0vrzwA: sieve: user has no valid personal script Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, vader): Debug: 70NxN1FlllUqXgAA0vrzwA: sieve: no scripts to execute: reverting to default delivery. Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, vader): Error: stat(/home/han.solo/mail/.imap/INBOX/dovecot.index.log) failed: Permission denied (euid=804(vader) egid=800(kerber) missing +x perm: /home/han.solo, euid is not dir owner) Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, vader): Error: open(/home/han.solo/mail/.imap/INBOX/dovecot.index) failed: Permission denied (euid=804(vader) egid=800(kerber) missing +x perm: /home/han.solo, euid is not dir owner) Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106, vader): 70NxN1FlllUqXgAA0vrzwA: msgid=<55966551.IfKOMu/T0WTB9M5x%vader at dhcp90.#####>: save failed to INBOX: BUG: Unknown internal error Jul 3 12:34:57 dhcp90 sendmail[24121]: t63AYvn5024116: to=<vader at dhcp90.#####>, ctladdr=<vader at dhcp90.#####> (804/800), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=91062, relay=localhost, dsn=4.2.0, stat=Deferred: 451 4.2.0 <vader> BUG: Unknown internal error Jul 3 12:34:57 dhcp90 sendmail[24121]: t63AYvn5024116: to=<han.solo at dhcp90.#####>, ctladdr=<vader at dhcp90.#####> (804/800), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=91062, relay=localhost, dsn=2.0.0, stat=Sent Jul 3 12:34:57 dhcp90 dovecot: lmtp(24106): Disconnect from local: Client quit =========== The setup is as follows: All users have /bin/false instead of a shell. Each user has a unique UID but they all have 1 GID (800) My MTA is sendmail I am using dovecot-lmtp for local delivery Mailbox format is mbox Configured managesieve plugin to listen on 4190. (not sure if this is even related but it might) The problem I see is that lmtp(user1) tries to access the home directory /home/user2 and I cannot figure out the reason why. This only happens when sending mails to multiple recipients. I see the that lmtp complains that it doesn't have execute permissions. But I don't want to place execute permissions for others on the entire /home/* dir structure. Also, 700 are the default creation permissions. So new users would have to be chmod'ed manually. (unless there is a setting in dovecot) I used "mailx" to send a test email to multiple recipients `echo "test message" | mailx -s "subject" -r vader at dhcp90.##### han.solo at dhcp90.##### vader at dhcp90.##### tester at dhcp90.#####` The only one who actually receives the message is han.solo at dhcp90.##### and The same happens with aliases in /etc/aliases. `echo "group test" | mailx -s "subject" -r vader at dhcp90.##### grouplist at dhcp90.#####` "grouplist" is defined in /etc/aliases and contains the same users as in the log Any help with this is greatly appreciated. Here is my dovecot configuration: === `dovecot -n` === # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-504.12.2.el6.x86_64 x86_64 CentOS release 6.6 (Final) auth_debug = yes auth_mechanisms = plain login disable_plaintext_auth = no lda_mailbox_autocreate = yes mail_debug = yes mail_full_filesystem_access = yes mail_gid = mail mail_location = mbox:~/mail:INBOX=/var/mail/%u managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date mbox_write_locks = fcntl passdb { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap pop3 lmtp sieve service lmtp { client_limit = 1 executable = /usr/libexec/dovecot/lmtp -L inet_listener lmtp { address = 127.0.0.1 ::1 port = 24 } process_min_avail = 1 } service managesieve-login { inet_listener sieve { port = 4190 } } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } protocol lmtp { mail_plugins = " sieve" postmaster_address = postmaster } =============== `rpm -qa | grep dovecot` dovecot-pigeonhole-2.0.9-8.el6_6.4.x86_64 dovecot-2.0.9-8.el6_6.4.x86_64 Thanks in advance.

3 3

FW: Help needed to use dovecot from scratch
by Sachin Kulkarni1 06 Jul '15

06 Jul '15

Hello All, Can anybody help in this please? Thanks and Regards, Sachin Kulkarni -----Original Message----- From: Sachin Kulkarni1 Sent: Tuesday, June 30, 2015 6:13 PM To: dovecot(a)dovecot.org Cc: 'dovecot-owner(a)dovecot.org'; 'dovecot-request(a)dovecot.org' Subject: Help needed to use dovecot from scratch Hello, I need to use Dovecot. So need to install it from scratch on Solaris 10. Please help. Thanks and Regards, Sachin Kulkarni ============================================================================================================================ Disclaimer: This message and the information contained herein is proprietary and confidential and subject to the Tech Mahindra policy statement, you may review the policy at http://www.techmahindra.com/Disclaimer.html externally http://tim.techmahindra.com/tim/disclaimer.html internally within TechMahindra. ============================================================================================================================

2 1

Google like searches from Roundcube
by Kevin Laurie 05 Jul '15

05 Jul '15

hi, trying to get fast searches on roundcube. would like if it could work like gmail (using multiple keywords to perform search) if not wrong, i think this is called fuzzy search(i do have dovecot_fts running)? please advise if anyone has managed to get this? thanks kevin

2 1

outlook downloading duplicate emails on particular days
by Rajesh M 04 Jul '15

04 Jul '15

hi centos 6 with qmail toaster and dovecot 2.2.7 for pop3 and imap i have a strange issue which happens on all 4 of my servers for POP3 users -- on any random day ie once in a while users spread across multiple domains will face a problem of outlook re-downloading ALL the emails in the inbox -- not just a few duplicate emails but the entire inbox. This happens for multiple email users spread across multiple domains sitting in different locations. i am searching for a solution for the last several months but nothing yet require help please my dovecot config file # Settings for 'stock' qmail-toaster disable_plaintext_auth = no default_login_user = vpopmail mail_max_userip_connections = 50 service imap-login { service_count = 0 client_limit = 256 process_min_avail = 4 vsz_limit = 384M process_limit = 400 } service pop3-login { service_count = 0 client_limit = 1000 process_min_avail = 12 vsz_limit = 512M process_limit = 400 } auth_cache_size = 0 auth_cache_ttl = 0 auth_cache_negative_ttl = 0 auth_mechanisms = plain login digest-md5 cram-md5 auth_username_format = %Lu first_valid_uid = 89 first_valid_gid = 89 log_path = /var/log/dovecot.log login_greeting = ready. mail_plugins = $mail_plugins quota plugin/quota = maildir protocols = imap pop3 ssl_cert = </var/qmail/control/servercert.pem ssl_key = </var/qmail/control/servercert.pem # the following will likely be the default at some point ssl_dh_parameters_length = 2048 namespace { inbox = yes location = prefix = # prefix = INBOX. # Use 'prefix = INBOX.' for Courier-IMAP compatible transparent migration. # This forces all client apps to create subfolders underneath/within # the inbox instead of adjacent to it. It's not necessary to be that way. # FWIW, shubes thinks this setting is annoying/rediculous/retarded. # As a practical example, having no prefix allows mobile users to select # which folders get synchronized. Otherwise their whole mailbox is # synchronized, and they have no way to choose which folders they want sync'd. separator = . type = private } passdb { args = cache_key=%u webmail=127.0.0.1 driver = vpopmail } protocol imap { imap_client_workarounds = "delay-newmail" mail_plugins = $mail_plugins imap_quota } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_fast_size_lookups = yes pop3_lock_session = no # pop3_uidl_format = UID%u-%v pop3_no_flag_updates=yes } userdb { args = cache_key=%u quota_template=quota_rule=*:backend=%q driver = vpopmail } plugin { quota = maildir:ignore=Trash quota_rule = ?:storage=0 } thanks raj

1 0

Re: dovecot auth using 100% CPU
by Edward Betts 03 Jul '15

03 Jul '15

Jorge Bastos <mysql.jorge(a)decimal.pt> wrote: > What do you see in the logs? > My guess is that someone is trying a brute force auth against you, Thanks Jorge, I think this is the answer. I'm using dovecot for exim4 SMTP authentication. The exim4 logs show brute force attacks. -- Edward.

3 4

autocreating folders with special chars stored in mysql-userdb
by Hajo Locke 03 Jul '15

03 Jul '15

Hello, i use dovecot 2.2.18 and do some tests with an utf8 mysqlbackend. I use MySQL to authenticate Users and for retrieving some individual settings like autocreating folders etc. by userdb-settings in user-query. Yet no problems with standard language. Now i try to provide userdb-settings in exotic languages. My MySQL table uses utf8 charset. I store some data in my userdb-column. Here an polish example: "namespace/inbox/mailbox=example namespace/inbox/mailbox/example/name=postępować namespace/inbox/mailbox/example/auto=subscribe" Result is a new folder in dovecot, but in client every special char ę and ć is replaced with a "?" I seems that at some point a conversion to latin1 is performed which ruins the utf8 chars. Creating a folder postępować by imap-client is no problem. Hmm, what should i do now? I dont know how to influence dovecot to process retrieved utf8 data furthermore as utf8. Which charset is using dovecot when connecting to mysqldb and how to take influence? Thanks, Hajo

1 1

the file dovecot-uidlist.lock appear then deadlock
by 刘莹莹 03 Jul '15

03 Jul '15

hi: sometimes i can't use imap command to get mails, when this problem appear i find out the file dovecot-uidlist.lock appear at the same time . I don't know Why is this happening ? can you help me ? thanks !

2 2

Dovecot auth username mapping
by Laz C. Peterson 02 Jul '15

02 Jul '15

I have an interesting case here … Virtual mailboxes, domain/username/aliases stored in MySQL, authentication done using PAM. PAM authenticates through Kerberos, which are internal realms and not the email domains — for example, my username would be laz(a)PARAVIS.LOCAL <mailto:laz@PARAVIS.LOCAL> and my email address would be laz(a)paravis.net <mailto:laz@paravis.net>. All of this works just fine. But what I want to do is allow the users to log in using their email address and not their full Kerberos name. It is becoming laborious to help the users understand the difference between their username(a)LOCAL.REALM and username(a)email.address <mailto:username@email.address> and why we have to have two separate identities that mean the same thing. I have the SQL statements to convert either the Kerberos login or the email address to the actual Kerberos login (so they may use either). But I cannot seem to figure out how to get Dovecot to acknowledge this as the mapped username. I’m sure there has to be a way. Any help will be greatly appreciated. Thank you! ~ Laz Peterson Paravis, LLC

4 7

Outlook 2013 not fetching new mail/synchronization issues
by Dragos Pacher 02 Jul '15

02 Jul '15

Hi all, Dovecot 2.2.10 CentOS 6 64 bit. We are having terrible synchronization issues with Outlook 2013 (all updates) on Windows 7 SP1 and 8.1 hosts (all updates). Scenario: 1. Emails were sent since user closed Outlook 2. Next day: start computer, open outlook 3. No new email (even though email were sent overnight) 4. half a day later Outlook fetches emails like nothing happened Second issue: folders created or email send in Outlook 2013 does not synchronize on IMAP, they remain only local .. But I am mostly interested into finding a fix for the first synchronization issue described in scenario. Second is also important but I have a feeling its connected to the first. Any help will be highly appreciated! dovecot.conf listen = * #base_dir = /var/run/dovecot # Enabled mail protocols. #protocols = pop3 imap sieve protocols = pop3 imap # User/group who owns the message files: mail_uid = 89 mail_gid = 89 # Assign uid to virtual users. first_valid_uid = 89 last_valid_uid = 89 mail_max_userip_connections = 200 default_client_limit = 3000 namespace inbox { separator = . prefix = INBOX. inbox = yes # These mailboxes are widely used and could perhaps be created automatically: mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Trash { special_use = \Trash } # For \Sent mailboxes there are two widely used names. We'll mark both of # them as \Sent. User typically deletes one of them if duplicates are created. mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } } # Logging. Reference: http://wiki2.dovecot.org/Logging log_path = /var/log/dovecot.log mail_debug = no auth_verbose = no auth_debug = no auth_debug_passwords = no auth_verbose_passwords = no auth_worker_max_count = 2048 # SSL: Global settings. # Refer to wiki site for per protocol, ip, server name SSL settings: # http://wiki2.dovecot.org/SSL/DovecotConfiguration ssl = yes verbose_ssl = no ssl_ca = </etc/ssl/savvy.cz-CA.pem ssl_cert = </etc/ssl/savvy.cz.crt ssl_key = </etc/ssl/savvy.cz.key disable_plaintext_auth = no # Mail location and mailbox format. #mail_location = maildir:/%Lh/Maildir/:INDEX=/%Lh/Maildir/ mail_location = maildir:~/Maildir:INDEX=/home/dovecotindex/%Lh/Maildir/ # Authentication related settings. # Append this domain name if client gives empty realm. auth_default_realm = # Authentication mechanisms. auth_mechanisms = PLAIN LOGIN service imap-login { client_limit = 3024 process_limit = 2048 process_min_avail = 64 vsz_limit = 64 M } service auth { client_limit = 3072 unix_listener auth-userdb { } inet_listener { port = 12345 } } service imap { vsz_limit = 256M # Max. number of IMAP processes (connections) process_limit = 2048 #imap_idle_notify_interval = 2 mins } service pop3 { # Max. number of POP3 processes (connections) process_limit = 1024 } # Virtual mail accounts. userdb { args = /etc/dovecot/dovecot-mysql.conf driver = sql } passdb { args = /etc/dovecot/dovecot-mysql.conf driver = sql } plugin { auth_socket_path = /var/run/dovecot/auth-master # Plugin: autocreate. Create and subscribe to default IMAP folders. autocreate = INBOX autocreate2 = Sent autocreate3 = Trash autocreate4 = Drafts autocreate5 = Junk autosubscribe = INBOX autosubscribe2 = Sent autosubscribe3 = Trash autosubscribe4 = Drafts autosubscribe5 = Junk # Plugin: expire. expire = Trash 7 Trash/* 7 Junk 30 expire_dict = proxy::expire # Pigeonhole managesieve service. # Reference: http://wiki2.dovecot.org/Pigeonhole/Sieve/Configuration # Per-user sieve settings. sieve_dir = /%Lh/sieve sieve = /%Lh/sieve/dovecot.sieve # Global sieve settings. sieve_global_dir = /home/vpopmail/sieve sieve_global_path = /home/vpopmail/sieve/dovecot.sieve #sieve_before = #sieve_after = } service dict { unix_listener dict { # mode = 0660 # user = vmail # group = vmail } } protocol lda { # Reference: http://wiki2.dovecot.org/LDA #mail_plugins = quota sieve autocreate #auth_socket_path = /var/run/dovecot/auth-master #log_path = /var/log/sieve.log #lda_mailbox_autocreate = yes #postmaster_address = root } protocol imap { mail_max_userip_connections = 2048 imap_client_workarounds = tb-extra-mailbox-sep #mail_plugins = quota imap_quota autocreate #mail_plugins = autocreate } protocol pop3 { #mail_plugins = quota pop3_uidl_format = UID%u-%v pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } Regards, Pacher Dragos

3 12

duplicate namespace prefix
by jjhoffart 02 Jul '15

02 Jul '15

Hello, I am in the process of setting up a server that is running to invocations of dovecot. One of the invocations is acting as a backend and the other as a Director. I believe I have most of the configuration complete but I keep running into the following error: Jul 01 14:17:04 lda(postmaster(a)mydomain.com: Error: user postmaster(a)mydomain.com: Initialization failed: namespace configuration error: Duplicate namespace prefix: "" Jul 01 14:17:04 lda(postmaster(a)xn--mydomain-8za.com: Fatal: Invalid user settings. Refer to server log for more information. Not sure where to go from here and most of my searches on the error have lead me to dead ends hoping someone can help me out. Thanks.

3 2

Using PAM and passwdfile together
by Jim Garrison 02 Jul '15

02 Jul '15

Dovecot 2.0.9 on Centos 6.6 I have some local users and some Postfix virtual mailboxes. The config currently has: > # 2.0.9: /etc/dovecot/dovecot.conf > # OS: Linux 2.6.32-504.12.2.el6.x86_64 x86_64 CentOS release 6.6 (Final) > first_valid_uid = 190 > log_path = /var/log/dovecot.log > mail_access_groups = mail > mail_location = mbox:~/mail:INBOX=/var/mail/%u > mbox_write_locks = fcntl > passdb { > driver = pam > } > passdb { > args = scheme=MD5 username_format=%u /etc/dovecot/auth/%d.passwd > driver = passwd-file > } > protocols = imap pop3 > ssl_ca = </etc/pki/tls/certs/ca-bundle.crt > ssl_cert = </etc/pki/dovecot/certs/mailcert.pem > ssl_key = </etc/pki/dovecot/private/mailkey.pem > ssl_parameters_regenerate = 48 > userdb { > driver = passwd > } > userdb { > args = uid=199 gid=199 home=/var/mail/vhosts/%d/%n mail=mbox:/var/mail/vhosts/%d/%n:INBOX=/var/mail/vhosts/%d/%n/mail > driver = static > } Each time a virtual mailbox user logs in, PAM writes a set of Authentication Failure messages to /var/log/secure when it attempts to find the virtual user, which it then successfully authenticates in the passwd-file. Is there a way to prevent PAM from loggin this spurious error and having dovecot log an authentication failure only if BOTH methods fail? -- Jim Garrison (jhg(a)acm.org) PGP Keys at http://www.jhmg.net RSA 0x04B73B7F DH 0x70738D88

2 1

dovecot-lmtp
by Steven Hopps 02 Jul '15

02 Jul '15

Hi, I'm trying to use dovecot-lmtp so that I can filter messages with sieve, however it doesn't appear to be working. I followed the instructions on wiki2.dovecot.org. I'm running Debian Wheezy. I've got runit configured to execute postfix and dovecot, which may be the source of the problem (runit executes /usr/sbin/dovecot -F). I've got mail_debug turned on and there is nothing in the mail log about lmtp. Any help would be appreciated. -- Steven Hopps || shopps(a)pridetechdesign.com 424-888-0443 || http://www.pridetechdesign.com = Ask about my Security Tune-Up & 24/7 Server Monitoring! =

2 4

Dovecot deleting files and directories
by Jan Ekholm 01 Jul '15

01 Jul '15

Hi, I’m a new Dovecot user and using version 2.2.18 on an OpenSuse system. In general it all works quite nicely and clients can connect to Dovecot and manage mails normally. The layout used is maildir. The users are all virtual, i.e. they do not exist on the Linux system. They all log in without any authentication due to a very specialized and internal setup. However, sometimes Dovecot simply deletes mails from the maildir structure. It also seems to delete entire users too. This is not a simple case of clients deleting mails, but the entire folder for the user seems to sometimes get nuked. I’ve also seen that only the mails and Dovecot’s admin files (indexes etc) are deleted. The log file is not really too informative, mostly lines of this form: Jul 01 14:00:36 imap(firstname.lastname(a)domain.x): Info: Disconnected: IMAP session state is inconsistent, please relogin. in=781 out=2630 Jul 01 14:00:36 imap(operators-east(a)east.domain.x): Debug: Namespace : /opt/mail/operators-east doesn't exist yet, using default permissions Jul 01 14:00:36 imap(operators-east(a)east.domain.x): Debug: Namespace : /opt/mail/operators-east doesn't exist yet, using default permissions Jul 01 14:00:36 imap(operators-east(a)east.domain.x): Debug: Namespace : Using permissions from /opt/mail/operators-east: mode=0700 gid=default Jul 01 14:00:36 imap(firstname.lastname(a)domain.x): Debug: Namespace : /opt/mail/firstname.lastname doesn't exist yet, using default permissions Jul 01 14:00:36 imap(firstname.lastname(a)domain.x): Debug: Namespace : /opt/mail/firstname.lastname doesn't exist yet, using default permissions Jul 01 14:00:36 imap(firstname.lastname(a)domain.x): Debug: Namespace : Using permissions from /opt/mail/firstname.lastname: mode=0700 gid=default Jul 01 14:01:03 imap-login: Info: Login: user=<firstname.lastname(a)domain.x>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=9326, secured, session=<2+YiPc4ZGwB/AAAB> Jul 01 14:01:03 imap(firstname.lastname(a)domain.x): Debug: Effective uid=1001, gid=100, home=/opt/mail/firstname.lastname Jul 01 14:01:03 imap(firstname.lastname(a)domain.x): Debug: maildir++: root=/opt/mail/firstname.lastname, index=, indexpvt=, control=, inbox=/opt/mail/firstname.lastname, alt= Jul 01 14:01:07 imap-login: Info: Login: user=<operators-east(a)east.domain.x>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=9333, secured, session=<11NpPc4ZHAB/AAAB> Jul 01 14:01:07 imap(operators-east(a)east.domain.x): Debug: Effective uid=1001, gid=100, home=/opt/mail/operators-east Jul 01 14:01:07 imap(operators-east(a)east.domain.x): Debug: maildir++: root=/opt/mail/operators-east, index=, indexpvt=, control=, inbox=/opt/mail/operators-east, alt= I’ve changed the name and domain. Not sure if the namespace complaints have anything to do with the directories on disk, but normally they are there when the logging comes. Below is the used config file. I can’t see anything that would trigger deletions and there is no logging or similar about it. To me it’s quite serious that an IMAP server randomly deletes mails and its own files. ########################################################################################### # support only IMAP, no pop3 protocols = imap # listen only on IPv4 (the default is: "* ::") listen = * # where logging gets sent log_path = /var/log/dovecot.log # disable SSL ssl = no disable_plaintext_auth = no # we're using maildir without any extra folders in the user's home directory (set in userdb) mail_location = maildir:~ # user ids default_login_user = dovenull default_internal_user = dovecot # auth config auth_verbose = yes auth_mechanisms = plain # password scheme. Uses an external Python application to verify the password. It gets # sent the username and password and can perform authentication. The current one # simply accepts anything. passdb { driver = checkpassword args = /opt/dovecot-2.2.18/bin/checkpassword.py } # user database userdb { driver = static args = uid=navie gid=users home=/opt/mail/maildir/%n } ########################################################################################### Anything obviously wrong? I’ve seen that mail_location and mail_home should not be the same, but using mail_location = maildir:~/mail gives the exact same behavior. Best regards, Jan Ekholm

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LDAP default value variable interpolation
by Leon Kyneur 01 Jul '15

01 Jul '15

I'm wondering if there is a way I can dynamically generate an LDAP default value by using variables. I have a configuration that works something like this on my front end proxy: pass_attrs = mail=user,\ =nopassword=y,\ =proxy=y,\ =host=mail.%d The above works perfectly well even though it seems a bit hack. I want to fetch the host field from LDAP and default it to "mail.%d" if the attribute isn't populated for the user. I have tried the following : pass_attrs = mail=user,\ =nopassword=y,\ =proxy=y,\ =host=%{ldap:mailHost:mail.%d} however the interpolation doesn't occur on the default. Just wondering if there is a way to achieve this? thanks

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Getting regularly mailbox desyncs while syncing with imapc
by Michael 30 Jun '15

30 Jun '15

Hello list! I sync approximately ~1000 Mailboxes actually without any problems, except my very own mailbox - Dovecot 2.2.18 (mdbox format) running here. The server from where I sync my mails from runs Dovecot 1.2.4 (with mbox format). The last log line that I receive is: dsync(ms(a)ddnetservice.de): Warning: Mailbox changes caused a desync. You may want to run dsync again. dovecot error log: 2015-06-30 13:09:50 imap(ms(a)ddnetservice.de): Error: Corrupted transaction log file /var/vmail/ddnetservice.de/ms/mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index.log seq 2: indexid changed 1435401731 -> 1435662589 (sync_offset=0) This is the command for running my syncs: doveadm -o imapc_user=<remote_user> -o imapc_password=<remote_pw> -o imapc_host=<remote_host> -o imapc_features="rfc822.size fetch-headers" -o mail_prefetch_count=20 -v -D sync -R -u<local_user> imapc: &> $LOGS/$BOX.log A re-run of this command for my mailbox doesn't fix the problem. The "Inbox" remains empty. Only a "doveadm force-resync -ums(a)ddnetservice.de" fixes this problem with the exception that the Inbox still remains empty. So after force-resyncing I need to run the sync again and my Inbox remains consistent until the next imapc sync run. Actually the desync message is self-explanatory, but I wonder why this behaviour only occurs for my own Inbox (only Inbox, other directories aren't affected) and not anywhere else. Is there any possiblity to debug this? Could also the amount of new incoming mails cause this or do I have maybe a bugged mail in my original mailbox that is causing my trouble? Any hint is appreciated. Thanks, Michael

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Same-server mail transfer
by Andrew Obertas 30 Jun '15

30 Jun '15

Hello, What would be the best way to perform a same-server Maildir transfer, while retaining the IMAP structure already in place, between users with the same GID but different UIDs? I've tried doveadm import but I presume it is encountering a permissions error due to the different UIDs. Worst case scenario, I could move everything over manually and then update the UIDs. I feel like there should be a more elegant solution though that I'm not immediately grasping however. -- Best regards, Andrew Obertas Junior Systems Administrator Infinet Communications Group

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