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[Dovecot] director with multiple instances
by Will Yardley 05 Jun '14

05 Jun '14

I'm experiencing some problems similar to those described in http://dovecot.org/list/dovecot/2012-July/137250.html except with 2.0.9. Adding http://dovecot.org/list/dovecot/2012-July/084906.html to the main config didn't seem to help, nor did setting the list of director and backend servers to just the system itself. I get a banner connecting to port 143: [root@retr01 log]# telnet localhost 143 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. * OK Waiting for authentication process to respond.. Log messages are: Jun 3 16:22:03 retr01 dovecot: pop3-login: Error: Timeout waiting for handshake from auth server. my pid=32152, input bytes=0 Jun 3 16:22:33 retr01 dovecot: pop3-login: Error: Timeout waiting for handshake from auth server. my pid=32152, input bytes=0 Jun 3 16:22:33 retr01 dovecot: director: Fatal: No inet_listeners defined for director service (for standalone keep director_servers empty) Jun 3 16:22:33 retr01 dovecot: master: Error: service(director): command startup failed, throttling Jun 3 16:23:08 retr01 dovecot: pop3-login: Error: Timeout waiting for handshake from auth server. my pid=32152, input bytes=0 Jun 3 16:23:33 retr01 dovecot: pop3-login: Disconnected: Inactivity (no auth attempts): rip=127.0.0.1, lip=127.0.0.1, secured running dovecot procs are: root 32137 1 0 16:20 ? 00:00:00 /usr/sbin/dovecot -c /etc/dovecot-main.conf root 32145 1 0 16:20 ? 00:00:00 /usr/sbin/dovecot -c /etc/dovecot-director.conf doveconf -n for the two configs (dovecot-main.conf, dovecot-director.conf) are included below. dovecot-sql.conf has: 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; (where empty.db is completely empty; this is just used since there's no other way to handle the port mapping, as described elsewhere on the list). A static proxy setup does work, with the normal imap / pop3 listeners. # 2.0.9: /etc/dovecot-main.conf # OS: Linux 2.6.32-431.11.2.el6.x86_64 x86_64 Red Hat Enterprise Linux Server release 6.5 (Santiago) ext4 auth_username_format = %Ln auth_worker_max_count = 60 base_dir = /var/run/dovecot-main default_client_limit = 4096 default_process_limit = 200 dotlock_use_excl = yes mail_fsync = always mail_location = maildir:/var/spool/maildir/%1Ln/%Ln:INDEX=/mnt/post/cache/%1Ln/%Ln mail_plugins = fts fts_squat quota maildir_very_dirty_syncs = yes mbox_write_locks = fcntl mmap_disable = yes namespace { inbox = yes location = prefix = Mail. separator = . type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { quota = maildir:User Quota quota_rule = *:storage=40960M:messages=3000000 } service auth-worker { user = $default_internal_user } service imap-login { inet_listener imap { port = 10143 } inet_listener imaps { port = 10993 } service_count = 0 vsz_limit = 128 M } service pop3-login { inet_listener pop3 { port = 10110 } inet_listener pop3s { port = 10995 } } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_cipher_list = HIGH:MEDIUM:+TLSv1:!SSLv2:+SSLv3 ssl_key = </etc/pki/dovecot/private/dovecot.pem syslog_facility = local4 userdb { args = uid=vmail gid=mail home=/var/spool/maildir/%1Ln/%Ln driver = static } protocol imap { mail_max_userip_connections = 24 mail_plugins = fts fts_squat quota imap_quota } protocol pop3 { mail_max_userip_connections = 3 pop3_uidl_format = %f } # 2.0.9: /etc/dovecot-director.conf # OS: Linux 2.6.32-431.11.2.el6.x86_64 x86_64 Red Hat Enterprise Linux Server release 6.5 (Santiago) ext4 auth_username_format = %Ln auth_worker_max_count = 60 base_dir = /var/run/dovecot-director default_client_limit = 4096 default_process_limit = 200 director_doveadm_port = 2888 director_mail_servers = 192.168.1.71 192.168.1.72 192.168.1.73 director_servers = 192.168.1.71 192.168.1.72 192.168.1.73 dotlock_use_excl = yes mail_fsync = always mail_location = maildir:/var/spool/maildir/%1Ln/%Ln:INDEX=/mnt/post/cache/%1Ln/%Ln mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = fts fts_squat quota maildir_very_dirty_syncs = yes mbox_write_locks = fcntl mmap_disable = yes namespace { inbox = yes location = prefix = Mail. separator = . type = private } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } service auth-worker { user = $default_internal_user } service director { fifo_listener login/proxy-notify { mode = 0666 } inet_listener { port = 2888 } unix_listener director-userdb { mode = 0600 } unix_listener login/director { mode = 0666 } } service imap-login { executable = imap-login director } service pop3-login { executable = pop3-login director } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_cipher_list = HIGH:MEDIUM:+TLSv1:!SSLv2:+SSLv3 ssl_key = </etc/pki/dovecot/private/dovecot.pem syslog_facility = local4 w

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[Dovecot] What are the options for HA and\or replication and\or storage?
by Eliezer Croitoru 05 Jun '14

05 Jun '14

I am considering couple options of converting a current service into a HA using multi servers or any other solutions. The point is that I am thinking about the options and which I am looking for. NFS can be a storage which has it's own pros and cons. There is the option of DRBD but as of now it's limited for two hosts. What options do exist out-there as a solution? The main issues are that the current service is based on Maildir and is on one server with resierfs. The service is composed of one host with 50k users couple disks in raid6. On the same machine we have postfix as mailer. I would like to hear about HA environment that I can use to replicate the boxes. My basic research leaded me to smtp on one host or more and using lmtp to send the messages to dovecot o another host which will have a replicated host and will be used with storage system based on ISCSI or NFS. Any other idea to enhance the current one or to replace it is more then just welcome. Thanks, Eliezer

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[Dovecot] General questions about TCP replication with dsync
by Patrick De Zordo 05 Jun '14

05 Jun '14

Hi Guys, I would like to question why I see this errors in my logs. Let explain me! Dovecot version: 2.2.9 (on Ubuntu 14.04 LTS) Ive configured our dovecot servers (2 servers) to do the TCP replication with dsync. This is working flawless. 1. Question: In logs I can see this errors on every sync (on the slave server / server without changes which should be updated): ---8<----------------------------------------------------------------------- ---------------------------------------------------------------------------- ---- dsync-server(email(a)example.com): Error: net_connect_unix(/var/run/dovecot/replicator-doveadm) failed: Permission denied ---8<----------------------------------------------------------------------- ---------------------------------------------------------------------------- ---- Googling a bit gave me the information This should be normal..? Well ok, errors in logs are not nice to see, but can someone confirm this is really ok? Timo? 2. Question (much more important): We are using sieve scripts for our users, they are replicated to the replica-host but this errors appears in logs on every synchronized message: ---8<----------------------------------------------------------------------- ---------------------------------------------------------------------------- ---- dsync-server(email(a)example.com): Error: Failed to access mailbox dovecot/sieve: Internal error occurred. Refer to server log for more information. dsync-server(email(a)example.com): Error: stat(/var/vmail/example.com/email/.dovecot.sieve/tmp) failed: Not a directory ---8<----------------------------------------------------------------------- ---------------------------------------------------------------------------- ---- So whats going on there? This is strange and should not be, right? Any hints? Thank you very much! --------------------------------------------------------------------- Mit freundlichen Grüßen / Distinti saluti / Kind regards De Zordo Patrick patrick(a)spamreducer.eu

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[Dovecot] Error with dsync in TCP replication
by Patrick De Zordo 05 Jun '14

05 Jun '14

Hey guys, again this question.. We are trying to get dsync replication over TCP working.. But we are having a bit of troubles.. Our configuration (just most important parts): ---8<--------------------------------------------------------------- # 2.2.13 (304d545927d2): /etc/dovecot/dovecot.conf # OS: Linux 3.13.0-24-generic x86_64 Ubuntu 14.04 LTS ext4 doveadm_password = secret first_valid_uid = 150 last_valid_uid = 150 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_gid = mail mail_location = maildir:/var/vmail/%d/%n mail_plugins = " quota listescape zlib notify replication" mail_uid = 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 duplicate namespace inbox { inbox = yes location = mailbox Archiv { auto = subscribe special_use = \Archive } mailbox Archive { auto = no special_use = \Archive } mailbox Drafts { auto = no special_use = \Drafts } mailbox Entwürfe { auto = no special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Trash { auto = no special_use = \Trash } prefix = separator = / } plugin { mail_replica = tcp:mx2.example.com:999 quota = dict:user::proxy::quota quota_rule = *:storage=10MB quota_rule2 = Trash:storage=+10%% quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = ~/.dovecot.sieve sieve_dir = ~/sieve zlib_save = bz2 zlib_save_level = 9 } protocols = " imap sieve pop3" replication_max_conns = 1 service aggregator { fifo_listener replication-notify-fifo { mode = 0666 } unix_listener replication-notify { mode = 0666 } } service doveadm { inet_listener { port = 999 } } service replicator { unix_listener replicator-doveadm { mode = 0600 } } protocol lda { mail_plugins = " quota listescape zlib notify replication quota sieve listescape zlib" } protocol imap { mail_plugins = " quota listescape zlib notify replication imap_quota listescape zlib" } protocol sieve { managesieve_max_line_length = 65536 } ---8<--------------------------------------------------------------- The problem: After a user adds a sieve script with his mail application (in this case Thunderbird with plugin): 1. the script is saved in /var/vmail/%d/%n/sieve/script_name == OK 2. this file (/var/vmail/%d/%n/sieve/script_name) is then symlinked to /var/vmail/%d/%n/.dovecot.sieve == OK Now the problem kicks in: 1. On the secondary server (mail_replica server) the script is created + the same symlink == OK 2. In logs (on secondary) there is shown this error every time a sync is done: ---8<--------------------------------------------------------------- dsync-server( <mailto:user@example.com> user(a)example.com) Error: Failed to access mailbox dovecot/sieve: Internal error occurred. Refer to server log for more information. dsync-server( <mailto:user@example.com> user(a)example.com) Error: stat(/var/vmail/example.com/user/.dovecot.sieve/tmp) failed: Not a directory ---8<--------------------------------------------------------------- Issuing doveadm replicator status '*' on first server gives back: username priority fast sync full sync failed user(a)example.com none 00:03:36 23:11:51 y Sync from master->secondary is interrupted but sync from secondary->master is working.. Thanks for any hint! --------------------------------------------------------------------- Mit freundlichen Grüßen / Distinti saluti / Kind regards De Zordo Patrick patrick(a)spamreducer.eu

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[Dovecot] IMAP copy fails because the mailbox size of user1 is exceeding the quota limit of user2??
by Katja Wegner 05 Jun '14

05 Jun '14

Hi all, I do have a mailbox-quota problem in dovecot 2.0.19 that is beond my understanding. Could someone pls. give me a hint. - user1 max. mailbox quota is set to 1GB, the current mailbox size of user1 is 15MB - user2 max. mailbox quota is set to 10MB, the current mailbox size of user1 is 10kB - user1 shares the folder 'shared_folder' to user2 with all rights (read, write ...) - user2 has subscribed to 'shared_folder' the problem: - user2 tries to move a mail (20kB) to the shared folder via telnet: ". copy 1:1 shared/user1/shared_folder" - it fails with: "NO [OVERQUOTA] Quota exceeded (mailbox for user is full)" - copying the same mail to a local folder of user2 works without problems. - After I raised the max. mailbox quota of user2 from 10MB to 16MB it was possible to move the mail to the 'shared_folder' of user1. It looks like the copy operation fails because the mailbox size of user1 is exceeding the quota limit of user2! Is this possible? Is this a bug? Do I have a configuration problem? dovecot -n # 2.0.19: /etc/dovecot/dovecot.conf # OS: Linux 3.5.0-51-generic x86_64 Ubuntu 12.04.4 LTS ext4 auth_debug = yes auth_debug_passwords = yes auth_mechanisms = plain login auth_verbose = yes dict { sqldomainquota = mysql:/etc/dovecot/dovecot-sql-domain.conf sqluserquota = mysql:/etc/dovecot/dovecot-dict-sql-user.conf } first_valid_uid = 150 last_valid_uid = 150 mail_debug = yes mail_gid = mail mail_location = maildir:/var/vmail/%d/%n mail_plugins = " quota quota acl" mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacati on subaddress comparator-i;ascii-numeric relational regex imap4flags copy includ e variables body enotify environment mailbox date ihave namespace { inbox = yes location = prefix = separator = / type = private } namespace { list = children location = maildir:/var/vmail/mydomain.de/%%n:CONTROL=/var/vmail/mydomain.de/%n/ shared/%%n:INDEX=/var/vmail/mydomain.de/%n/shared/%%n prefix = shared/%%n/ separator = / subscriptions = yes type = shared } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes.db quota = dict:User quota::proxy::sqluserquota quota_rule2 = shared:ignore sieve = ~/_dovecot_sieve sieve_dir = ~/sieve } postmaster_address = kontakt(a)mydomain.de protocols = imap pop3 sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = mail mode = 0600 user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_cipher_list = ALL:!LOW:!SSLv2:ALL:!aNULL:!ADH:!eNULL:!EXP:RC4+RSA:+HIGH:+MED IUM ssl_key = </etc/ssl/private/dovecot.pem userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol imap { imap_client_workarounds = delay-newmail mail_max_userip_connections = 10 mail_plugins = " quota imap_quota imap_quota acl imap_acl" } protocol pop3 { mail_max_userip_connections = 10 pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol lda { deliver_log_format = msgid=%m: %$ mail_plugins = acl postmaster_address = postmaster quota_full_tempfail = yes rejection_reason = Your message to <%t> was automatically rejected:%n%r }

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[Dovecot] attachment sis + EMLINK (too many links) = segfault bug (2.2.12)
by Pavel Stano 05 Jun '14

05 Jun '14

Hi, we use attachment dedup with lots of emails (still migrating to it from maildir). We use netapp storage with wafl filesystem over nfs. Problem is that netapp has hard limit of 100k hardlinks to one file. And we encountered it. Problem is that dovecot start do segfault (lmtp,dsync,pop3 etc) when it happend when tried to deliver new emails with that attachment. Here is strace of dsync: 6740 link("/nfsmnt/mailatch1/f9/10/hashes/f9108ddaa156ac15738e41ed3bedec1eda50175d", "/nfsmnt/mailatch1/f9/10/f9108ddaa156ac15738e41ed3bedec1eda50175d-7bb7a20ddb598853541a000028db4a9f") = -1 EMLINK (Too many links) 6740 --- SIGSEGV (Segmentation fault) @ 0 (0) --- ls -lh: -rw------- 100000 vmail vmail 4.7K Apr 28 16:54 /nfsmnt/mailatch1/f9/10/hashes/f9108ddaa156ac15738e41ed3bedec1eda50175d We were using mail_attachment_min_size=4kb, we solve it by increasing it to 8kb. It would be nice to somehow fix this problem. Like not crash when EMLINK happend and maybe do not deduplicate attachments but deliver email without dedup. Or create second file in hashes/ and start hardlinking it instead of original. AFAIK ext4 has also hard-link limit 64k (http://en.wikipedia.org/wiki/Hard_link#Limitations_of_hard_links) So this can happen to anyone with lots of emails. Thanks -- [ Ohodnotte kvalitu mailu: http://nicereply.com/websupport/Stano/ ] Pavel Stano | Troubleshooter http://WebSupport.sk *** BERTE A VYCHUTNAVAJTE ***

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[Dovecot] Plugin mail-filter tangles
by Stanislas SABATIER 05 Jun '14

05 Jun '14

System installed : Dovecot 2.2.12 as IMAP server and Postfix as MTA. Dovecot and Postfix connected via LMTP + Dovecot mail plugin 'mail-filter' to encrypt/decrypt emails on the fly with public/private users' RSA keys. Case study : You have 3 (virtuals) users belonging to 3 different domains, all managed by your Dovecot server. One of these users is connected to Dovecot with MUA Thunderbird, and he's writing an email to someone outside of yours domains, but he puts the two others users' email addresses in CC : mail from user1(a)domain1.dovecot --> to: someone@outside, CC: user2(a)domain2.dovecot, user3(a)domaine3.dovecot What happens (as far as I can understand) : The email is submitted to Postfix : one copy is delivered outside, the other is passed to Dovecot via LMTP for user2 & user3 @dovecot Dovecot is handling the final delivery, through mail-filter plugin as follow : 1. both users contexts are created from user_db queries 2. mail-filter plugin is init for user2 3. /mail_user_created/ for user2 4. mai-filter plugin arguments are parsed for user2 5. â¦/mail_allocated/ then /mail_save_begin/ for user2 (at this stage, the email is encrypted with users2 params) 6. Dovecot tells to LMTP that mail for user2 is delivered 7. then, â we are still in user2 context â, an other /mail_allocated/ is run, followed by a /istream_opened/ 8. mail user context is swithed to user3 --> /mail_user_created/ --> plugin's args parsed --> â¦ /mail_allocated/ 9. andâ¦ Dovecot tells to LMTP that mail for user3 is delivered So, it appears that Dovecot is re-using user2's email to pass it to user3 by opening an istream in user2's context. In my configuration, Dovecot can't do that because it has not the user2's private rsa key to reopen the email it has just encrypted, so it passes the email to user3 with user2 encryption params. Final result : user3 is receiving the email encrypted with user2's rsa key ! Problem : how to force Dovecot to deinit then reinit mail-filter plugin for each user to be sure that each email is encrypted with the right key before it is saved to users' mailboxes ? Thank you in advance for your help. Stan.

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[Dovecot] SQL passdb, LDAP userdb
by Kristof Bajnok 05 Jun '14

05 Jun '14

Hi, in my current setup, LDAP authentication + userdb works fine. I'd like to integrate Dovecot with Shibboleth. I have a custom module at the IdP (*) that inserts short-time tokens to an SQL table at user authentication, and I want Dovecot to use the token table for passdb but keep LDAP for storing the userdb (uid, quota, etc) I thought it was simple as omitting the sql user_query, but I got: Warning: mysql: Query failed, retrying: Table 'webmail.users' doesn't exist Error: sql(user@domain,ipaddr): User query failed: Table 'webmail.users' doesn't exist (using built-in default user_query: SELECT home, uid, gid FROM users WHERE username = '%n' AND domain = '%d') Do you have any hints how to do this? Thanks, Kristof (*): in SAML there is an Identity Provider that does user authentication, which is separated from the services

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[Dovecot] [dovecot]Quota per user from openldap
by Selcuk Yazar 05 Jun '14

05 Jun '14

Hi, in dovecot documentation i try to implement quota per users. i added dovecot-ldap.conf file user_attrs = homeDirectory=home, uidNumber=uid, gidNumber=gid, mailbox=mail, quota=quota_rule=*:bytes=%$ and i see in logs quota(quota_rule=*:bytes=%$)=*:bytes=241800 Debug: Added userdb setting: plugin/quota_rule=*:bytes=241800 but still mail is delivering , i'not sure other settings about 20-imap.conf and 20-pop3.conf from documentation. what is the correct steps for this? thanks in advance -- Selçuk YAZAR

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Re: [Dovecot] R: Info about sharing mail folder
by Steffen Kaiser 05 Jun '14

05 Jun '14

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tue, 3 Jun 2014, Gianluca Calloni wrote: > In folder /var/vmail/example.com/user_a i've a dovecot-acl file with " > user=test(a)example.com lrwstipekxa " > > IN mysql table user_shares i set: > > +---------------------+------------------+-------+ > | from_user | to_user | dummy | > +---------------------+------------------+-------+ > | user_a(a)example.com | test(a)example.com | 1 | > +---------------------+------------------+-------+ > > and the doveadm acl command: > > doveadm acl get -u user_a(a)example.com INBOX > ID > Global Rights > user=test(a)example.com > admin create delete expunge insert lookup post read write write-deleted > write-seen You have shared user_a's INBOX to test(a)example.com > doveadm acl get -u user_a(a)example.com INBOX.FOLDER_A > ID > Global Rights > user=test(a)example.com > admin create delete expunge insert lookup post read write write-deleted > write-seen > > doveadm acl get -u user_a(a)example.com INBOX.FOLDER_B > ID > Global Rights > user=test(a)example.com > admin create delete expunge insert lookup post read write write-deleted > write-seen > > doveadm acl get -u user_a(a)example.com INBOX.FOLDER_C > ID > Global Rights > user=test(a)example.com > admin create delete expunge insert lookup post read write write-deleted > write-seen > > Of course, user test(a)example.com can see all subfolder. Reading your post.. > I can set an dovecot-acl file in each subfolder to set the permission? Yes, remove all dovecot-acl files and add it into those folders you want to share. Or remove all dovecot-acl files and: doveadm acl add -u user_a(a)example.com INBOX.FOLDER_B \ user=test(a)example.com create read ... > > -----Messaggio originale----- > Da: dovecot [mailto:dovecot-bounces@dovecot.org] Per conto di Steffen Kaiser > Inviato: martedì 3 giugno 2014 15:45 > A: Dovecot Mailing List > Oggetto: Re: [Dovecot] Info about sharing mail folder > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Tue, 3 Jun 2014, Gianluca Calloni wrote: > >> But i need to know if is possible for user_a(a)mydomain.com to share >> only 1 or >> 2 subfolder (E.g. .INBOX.FOLDER_A and .INBOX.FOLDER_B shared, >> .INBOX_FOLDER_C not shared) > > What's the dovecot-acl in .INBOX and the three directories mentioned above? > > Or: > > doveadm acl get -u user_a(a)mydomain.com INBOX > doveadm acl get -u user_a(a)mydomain.com INBOX.FOLDER_A > doveadm acl get -u user_a(a)mydomain.com INBOX.FOLDER_B > doveadm acl get -u user_a(a)mydomain.com INBOX.FOLDER_C > > Did you've share "INBOX" instead of the the subfolders A and B? > - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEVAwUBU477Wnz1H7kL/d9rAQJQTgf+MF+++/j56SbuXae8wZismkJhL5Z1NNHF bd8i5JqMhpSzh4dPb7IhdzJySZ7T5zJgDviCvnscldLrlb9+wAQwx6aB+iw929R4 wdtgjEE0hAnZuMpyTPvCL8gwmL4B/kpbvXZIGJbmIVgkh6iBGorHRKbSxFjlUKQW 9ZuiUsAmX4UJslJDisScJuPT6uB93K/cdOoMCa5D8a9IacDYoP3nrhH1kn3K7IXo xCNId2YoeDqA3OWzp+NM8ahS6MYqIN432oYP1eViAmY0pTHdoWKMBmTeskGY2ajz FG7CSv1x6WeEyyzdE7dSth+j4nqQIh0hkIS6vQYMuMTLuwq/rJW4dA== =8fCy -----END PGP SIGNATURE-----

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Re: [Dovecot] Odd ownership of the dovecot-uidlist file
by Bruce 05 Jun '14

05 Jun '14

Hi, Please see my responses below, On 04/06/14 01:35, dovecot-request(a)dovecot.org wrote: > Message: 4 > Date: Tue, 3 Jun 2014 09:33:48 +0200 (CEST) > From: Steffen Kaiser >> >Jun 3 11:38:51 brio dovecot: Dovecot postlogin.sh running as hamish@XXXXX >> >(/mnt/spool/keepers/h/XXXXX/hamish) userid = 7053 (7053) - uidlist = 26624 >> >Jun 3 11:38:51 brio dovecot: Dovecot for hamish@XXXXX finished, uidlist now = >> >26624 > who is user 26624? Is the uid valid at all? If it is invalid, are there > other files owned by this uid? Maybe only one of your NFS server has this > uid in its /etc/passwd? Is user "hamish" shared to another user somehow, > either via symlinks, ACLs, ...? UID 26624 is a valid user ('info' of domain14552) but under a compleltly different domain name (hamish is under domain25367). However that user has also not logged in around the time the ownership was changed. There is no relevance to the two users, except that they exist on the system and for some reason this issue happened to the hamish user. The NFS server does not know about the UIDs, it just provides the numeric IDs which is translated on the dovecot/exim servers by NSS and Dovecotr using the replicated MySQL database. Additionally both users have existed for some time and the databases are in sync. Customers also do not have any access to the file system so there will be no symlinks in place. Its also not a single server that we are seeing the issue on, it maybe one Dovecot server accessing one NFS server. Then the next time its a different Dovecot server accessing a different NFS server. >> >the logs for that time which is abnormal (a whole bunch of other logins from >> >other customers but nothing from those two users and no errors) > What about cron jobs, message delivery, backups, ... anything that > possibly can alter that file. I don't think, it's a Dovecot issue, unless > the uid 26624 is valid and hamish is shared with that user. Nothing besides Courier being replaced by Dovecot has changed in the server setup (although I could be wrong there, but we are going through one component at a time and until this issue is resolved we are not moving onto the next), and the only file which is being modified is a file which only Dovecot maintains. There are hourly backups which do an rsync to another server in case of hardware failure, there are scripts which move mailboxes between NFS servers but they show up in logs. Exim has no need to touch a dovecot controlled file, and when it writes mail into the maildir its writing as the correct user. It also seem odd that one login is fine then randomly the next login the file ownership has changed, nothing happens in between the two logins which are in some cases only 5 to 10 minutes apart. All I am really looking for is ideas on where to look, as it seems odd that nobody else is reporting this, and since its a reasonably new setup its possibly something we have done in the config (which I posted in my first email). Is there a reliable way to run a script directly when a dovecot session starts and finishes so we could output the ownership before and after which may also help eliminate the session itself. Cheers, Bruce

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Re: [Dovecot] dovecot shared folder
by Mihai Badici 04 Jun '14

04 Jun '14

I think I broke the thread. It was a follow up of this post from May 12: >I try to create a shared directory in dovecot. When accessing ( from >roundcube) i can't subscribe or list the namespace. It looks like I don't >have rights. >This is an extract from debug log: When I try to create a new folder in >"Public" (i don't have rights, but i can try) loooks like the process crash: >May 12 23:10:07 imap: Debug: Module loaded: >/usr/lib/dovecot/lib01_acl_plugin.so May 12 23:10:07 imap: Debug: Module loy >12 23:10:07 imap(Mihai.*Badici*): Debug: acl vfile: file /etc/dovecot/dovecot- >acl//.DEFAULT not found May 12 23:10:07 imap(Mihai.*Badici*): Debug: acl vfile: >reading file /home/dovecot/public/dovecot-acl May 12 23:10:07 >imap(Mihai.*Badici*): Fatal: master: service(imap): child 5013 killed with >signal 11 (core dumps disabled) On Tuesday 13 May 2014 22:12:38 you wrote: > On Tuesday 13 May 2014 15:53:55 you wrote: > > On 13.5.2014, at 10.21, Mihai Badici <mihai(a)badici.ro> wrote: > > > I try to create a shared directory in dovecot. > > > When accessing ( from roundcube) i can't subscribe or list the > > > namespace. > > > It looks like I don't have rights. > > > > > > This is an extract from debug log: > > > When I try to create a new folder in "Public" (i don't have rights, but > > > i > > > can > > > > > try) loooks like the process crash: > > .. > > > > > May 12 23:10:07 imap(Mihai.Badici): Fatal: master: service(imap): child > > > 5013 killed with signal 11 (core dumps disabled) > > > > Yep. Can you get gdb backtrace? http://dovecot.org/bugreport.html > > I have this: > (gdb) core /home/dovecot/private/Mihai.Badici/core > [New LWP 1186] > Failed to read a valid object file image from memory. > Core was generated by `dovecot/imap'. > Program terminated with signal 11, Segmentation fault. > #0 0xb756b4b3 in ?? () -- Mihai Bădici http://mihai.badici.ro

1 0

[Dovecot] empty emails with 2.2.13/pigeonhole
by Cor Bosman 04 Jun '14

04 Jun '14

I recently upgraded from 2.2.10 to 2.2.13, and also upgraded pigeonhole. Ever since im seeing some empty emails appear in my inbox. Return-Path: <cricket(a)stats2.xs4all.net> Delivered-To: <cor> Received: from imapdirector1.xs4all.net ([194.109.26.173]) by userimap9.xs4all.nl (Dovecot) with LMTP id CHu0MUDDjlOBdwAAwvsqNQ for <cor>; Wed, 04 Jun 2014 08:57:04 +0200 Thats all this mail contains. This only happens using LMTP/Sieve, and with many different senders/recipients. Debug log shows nothing out of the ordinary, except that the mail seems to be corrupted by the time it hits sieve. It's very hard to diagnose. Our path is kind of lengthy, and in theory it could happen everywhere. Mail first arrives on incoming MX server which is sendmail. From there it's sent to a dovecot director using lmtp, which sends it to a server that does final delivery with sieve. Im not sure where the email gets corrupted. Any extra debugging I could turn on? Two extra things to note. So far it seems to only happen to emails that would have hit a matching sieve filter rule. I have asked a dozen people to verify this, and all emails would have matched a filter if all was well. Instead, it gets dropped into the inbox because pigeonhole seems to be working with the corrupt file and cant match any rules anymore. And second, 99% of our email is handled differently, from the sendmail server directly into a local mailer, and that never causes issues. We're in the process of switching to lmtp. Any insights? cor

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[Dovecot] /etc/passwd userdb and long usernames
by Nicolás Reynolds 04 Jun '14

04 Jun '14

hi! i've configured dovecot to lookup usernames in /etc/passwd and it's working ok but it's having some problems retrieving info when the username is longer than 32 chars (i know it isn't recommended but everything seemed to work ok except for the hardcoded limit in useradd...) i found this on logs showing extra characters on the home field: http://pastie.org/pastes/9257902/text?key=vsxstofu3rf5wum4aic5va is there a limit on username length? i "solved" it by setting auth_username_format = %0.30u -- http://partidopirata.com.ar

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Re: [Dovecot] dovecot shared folder
by Mihai Badici 04 Jun '14

04 Jun '14

On Wednesday 14 May 2014 08:31:57 you wrote: > On Wednesday 14 May 2014 01:02:28 you wrote: > Finally i found time to build another machine and try to debug : I found my slackbuild stripped the debug symbols so i made some changes and : Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f06319e9ffc in acl_mailbox_get_aclobj (box=0x18f3140) at acl- mailbox.c:31 31 return abox->aclobj; (gdb) bt full #0 0x00007f06319e9ffc in acl_mailbox_get_aclobj (box=0x18f3140) at acl- mailbox.c:31 abox = 0x0 #1 0x00007f06317d7599 in cmd_myrights (cmd=0x18eefd0) at imap-acl- plugin.c:331 ns = 0x18ec480 box = 0x18f3140 mailbox = 0x18cd2a8 "Public" orig_mailbox = 0x18d8bd0 "Public" rights = 0x18d5cb8 str = 0x7f0631e2e708 <bsearch+88> #2 0x000000000041c947 in command_exec (cmd=0x18eefd0) at imap-commands.c:158 hook = 0x18d60e0 ret = false #3 0x000000000041b828 in client_command_input (cmd=0x18eefd0) at imap- client.c:778 client = 0x18ee3d0 command = 0x7fffbea4e480 __FUNCTION__ = "client_command_input" #4 0x000000000041bb3c in client_command_input (cmd=0x18eefd0) at imap- client.c:839 client = 0x18ee3d0 command = 0x18d5cb8 __FUNCTION__ = "client_command_input" #5 0x000000000041bc5c in client_handle_next_command (client=0x18ee3d0, remove_io_r=0x7fffbea4e50d) at imap-client.c:877 No locals. #6 0x000000000041bce3 in client_handle_input (client=0x18ee3d0) at imap- client.c:889 _data_stack_cur_id = 3 ret = false remove_io = false handled_commands = false __FUNCTION__ = "client_handle_input" #7 0x000000000041be80 in client_input (client=0x18ee3d0) at imap-client.c:931 cmd = 0x18e2cb8 output = 0x18eee10 bytes = 23 __FUNCTION__ = "client_input" #8 0x00007f063225b5d4 in io_loop_call_io (io=0x18eeee0) at ioloop.c:441 ioloop = 0x18d5730 t_id = 2 __FUNCTION__ = "io_loop_call_io" #9 0x00007f063225d580 in io_loop_handler_run_internal (ioloop=0x18d5730) at ioloop-epoll.c:220 ctx = 0x18d63c0 events = 0x18d7230 event = 0x18d7230 list = 0x18d7e20 io = 0x18eeee0 ---Type <return> to continue, or q <return> to quit--- tv = {tv_sec = 1799, tv_usec = 998998} events_count = 5 msecs = 1799999 ret = 1 i = 0 j = 0 call = true __FUNCTION__ = "io_loop_handler_run_internal" #10 0x00007f063225b76e in io_loop_handler_run (ioloop=0x18d5730) at ioloop.c:488 No locals. #11 0x00007f063225b6c8 in io_loop_run (ioloop=0x18d5730) at ioloop.c:465 __FUNCTION__ = "io_loop_run" #12 0x00007f06321e8258 in master_service_run (service=0x18d55c0, callback=0x4292eb <client_connected>) at master-service.c:566 No locals. #13 0x0000000000429652 in main (argc=1, argv=0x18d5390) at main.c:400 set_roots = {0x63a260 <imap_setting_parser_info>, 0x0} login_set = {auth_socket_path = 0x18cd050 "\210Ð\214\001", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x42909f <login_client_connected>, failure_callback = 0x429275 <login_client_failed>, request_auth_token = 1} service_flags = MASTER_SERVICE_FLAG_KEEP_CONFIG_OPEN storage_service_flags = MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT username = 0x0 c = -1 (gdb)

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[Dovecot] Dovecot + NFS + FreeBSD breakage ?
by Xavier Beaudouin 04 Jun '14

04 Jun '14

Hi, I am trying to update my old mails servers from dovecot 2.1.15 to 2.2.12 (freebsd ports) and upgrade to FreeBSD 10.0-P3. My mail storage are on NFS with index also. On 2.1.15 everything is ok, and in 10-mail.conf I have the good things to be added as wiki tell me (eg http://wiki2.dovecot.org/NFS) BUT, when I try a single connection like : $ telnet ::1 110 Trying ::1... Connected to localhost. Escape character is '^]'. +OK Dovecot ready. user test@domain +OK pass thebloodypass Connection closed by foreign host. Looking the log : Jun 4 10:09:10 mail03 dovecot: master: Dovecot v2.2.12 starting up for imap, pop3, lmtp Jun 4 10:09:20 mail03 dovecot: pop3-login: Login: user=<test@domain>, method=PLAIN, rip=::1, lip=::1, mpid=5540, secured, session=<7x47Jf76IQAAAAAAAAAAAAAAAAAAAAAB> Jun 4 10:09:20 mail03 dovecot: pop3(kiwi(a)oav.net): Fatal: nfs flush requires mail_fsync=always This is very strange since : # doveconf -n | grep -E 'sync|nfs' mail_fsync = always mail_nfs_index = yes mail_nfs_storage = yes So either there is some breakage somewhere or something that is buggy somewhere... Here is my doveconf -n : # 2.2.12: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 10.0-RELEASE-p3 amd64 auth_cache_size = 1 M auth_mechanisms = plain login digest-md5 cram-md5 auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@% auth_verbose = yes disable_plaintext_auth = no dotlock_use_excl = no lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_rcpt_check_quota = yes lmtp_save_to_detail_mailbox = yes lock_method = dotlock mail_debug = yes mail_fsync = always mail_location = maildir:~/Maildir:INDEX=/index/%d/%1n/%n mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = quota trash mail_log notify zlib fts fts_lucene mailbox_list_index = 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 mmap_disable = yes namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } mailbox badh { auto = subscribe special_use = \Junk } mailbox spam { auto = subscribe special_use = \Junk } prefix = } passdb { args = /usr/local/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { fts = lucene fts_lucene = whitespace_chars=@.+ mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size quota = maildir quota_grace = 10%% quota_rule2 = Trash:storage=+10%% quota_rule3 = spam:storage=+20%% trash = /usr/local/etc/dovecot/dovecot-trash.conf zlib_save = bz2 zlib_save_level = 9 } service auth { unix_listener /var/spool/postfix/private/auth { group = wheel mode = 0666 user = postfix } } service lmtp { inet_listener lmtp { port = 24 } } ssl_ca = </usr/local/etc/CA/ca-bundle.pem ssl_cert = </usr/local/etc/CA/domain_chain.pem ssl_key = </usr/local/etc/CA/domain_chain.pem ssl_prefer_server_ciphers = yes submission_host = server:25 userdb { args = /usr/local/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } verbose_proctitle = yes protocol lmtp { mail_plugins = quota trash mail_log notify zlib fts fts_lucene sieve } protocol lda { mail_plugins = quota trash mail_log notify zlib fts fts_lucene sieve } protocol imap { mail_plugins = quota trash mail_log notify zlib fts fts_lucene imap_quota imap_zlib } protocol pop3 { mail_plugins = quota trash mail_log notify zlib fts fts_lucene } NFS mounts on freebsd : 172.31.0.1:/vol/mail/data on /mail (nfs, noatime) 172.31.0.1:/vol/mail/index/tmp on /index (nfs, noatime) NFS server is also a FreeBSD (with ZFS). I can give ssh accesss to this box. Regards, Xavier

1 1

[Dovecot] Change in LAYOUT=fs between 1.2.9 and 2.0.19?
by Martijn 04 Jun '14

04 Jun '14

While testing an upgrade from Dovecot 1.2.9 (on Ubuntu 10.04 LTS) to 2.0.19 (12.04 LTS) I encountered the following change in behaviour: In both setups, mail_location is defined as follows: mail_location = maildir:~/domains/%d/%n/.Maildir:LAYOUT=fs No other mail_location-related settings are set in the config. On 1.2.9 this leads to new mail being delivered to this example directory: /home/username/domains/example-domain.ext/webmaster/.Maildir/INBOX/new/ On 2.0.19 the exact same mail_location is set, but new mail is now delivered to: /home/username/domains/example-domain.ext/webmaster/.Maildir/new/ Notice the missing /INBOX/ in the path on 2.0.19. I found no mention of this change on http://wiki2.dovecot.org/Upgrading/2.0 which first lead me to suspect this was a bug in 2.0.19. However, while browsing the 2.0-wiki I found a page which sheds some light on the behaviour that is to be expected from Dovecot 2.0.x. Quote from http://wiki2.dovecot.org/MailLocation/Maildir#Directory_layout > "Mailbox directory name": "Without DIRNAME, INBOX will be stored at ~/Maildir/{new,cur,tmp}/, but when DIRNAME is specified, we get an extra path component INBOX/ immediately prior to the DIRNAME value, so in the example above INBOX would be stored at ~/Maildir/INBOX/mAildir/{new,cur,tmp}/." I then changed mail_location to have an empty DIRNAME, like: mail_location = maildir:~/domains/%d/%n/.Maildir:LAYOUT=fs:DIRNAME= It appears this fixes the problem for new mail arriving (haven't tested other folders yet). Questions: 1. Is this a deliberate change in behaviour between the two versions? If so, may I suggest adding this change to the Upgrading to 2.0 wiki page, because I was unable to find the relevant info quickly. If not, is this a misconfiguration on my side, or a (known) bug in one of the two versions? 2. Is the DIRNAME=(empty) a good solution, or is it unusual/hacky to leave DIRNAME empty? Any particular problems I may expect using this configuration? Thanks in advance for your help. -- Kind regards, Martijn

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Re: [Dovecot] Info about sharing mail folder
by Steffen Kaiser 03 Jun '14

03 Jun '14

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tue, 3 Jun 2014, Gianluca Calloni wrote: > But i need to know if is possible for user_a(a)mydomain.com to share only 1 or > 2 subfolder (E.g. .INBOX.FOLDER_A and .INBOX.FOLDER_B shared, > .INBOX_FOLDER_C not shared) What's the dovecot-acl in .INBOX and the three directories mentioned above? Or: doveadm acl get -u user_a(a)mydomain.com INBOX doveadm acl get -u user_a(a)mydomain.com INBOX.FOLDER_A doveadm acl get -u user_a(a)mydomain.com INBOX.FOLDER_B doveadm acl get -u user_a(a)mydomain.com INBOX.FOLDER_C Did you've share "INBOX" instead of the the subfolders A and B? - -- Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEVAwUBU43RXHz1H7kL/d9rAQIm2Af+KLrxxvgAk8TH2f0U6ldu2NidjnncWDv9 Y6vxbuoT/3gC9hL0XlwT/KE+oh/aKsu1tkDhTSq5TQuGVZ5L26CTntIDE9WPq9jf I6lyTzaP6gT3RjhrV0MZeMGLUerWijVs+sPmZMnqTzIIMGFaSqNv6hfAeVjhw98Y 3RMfNbOudTCrg7DGM/jQ3jTXGyJEhL5aI4mFG7JUPE1eYX8ZbTgHePQQtzaFiseK 6en6o25IYpduoQhwq5KEZFkiNLVZFE0ntbwhgUkF8ovzyp3WzioTihi7n4W/IC3x SXfeq2hdq1KMqmXa1zbNKUHz/lPv+dJlXUl94LKxACwm9+zkkrS4vQ== =R2bc -----END PGP SIGNATURE-----

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[Dovecot] Info about sharing mail folder
by Gianluca Calloni 03 Jun '14

03 Jun '14

Hi to all. First of all.. I'm new on the mailing list.. So.. Sorry in advance for any mistake or error on posting here.. The question (or doubt..) is about sharing mail folder. I use a test mail server. Is not the production server (always dovecot + postfix + spamassassin + clamav) Well.. In test mail server i can use the share folder, follow the conf istruction on wiki dovecot. And work fine. But i need to know if is possible for user_a(a)mydomain.com to share only 1 or 2 subfolder (E.g. .INBOX.FOLDER_A and .INBOX.FOLDER_B shared, .INBOX_FOLDER_C not shared) When i do some test sharing folder, the user with wich user_a(a)mydomain.com share the mailbox can view all the subfolder of user_a(a)mydomain.com Following my dovecot versione e config. Thank's in advance My dovecot version is 2.0.19 My dovecot conf is : # 2.0.19: /etc/dovecot/dovecot.conf doveconf: Fatal: open(/etc/dovecot/dovecot.conf) failed: Permission denied calloni@dovecot:~$ sudo -i [sudo] password for calloni: root@dovecot:~# dovecot -n # 2.0.19: /etc/dovecot/dovecot.conf # OS: Linux 3.5.0-49-generic i686 Ubuntu 12.04.4 LTS ext4 dict { acl = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no first_valid_uid = 150 last_valid_uid = 150 mail_gid = mail mail_location = maildir:/var/vmail/%d/%u mail_plugins = acl mail_uid = vmail namespace { inbox = yes location = prefix = separator = / type = private } namespace { list = yes location = maildir:%%h:INDEX=~/shared/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = proxy::acl } postmaster_address = postmaster(a)jodovit.local protocols = " imap pop3" service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = mail mode = 0600 user = vmail } } service dict { unix_listener dict { group = mail mode = 0600 user = vmail } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } Thi

1 0

[Dovecot] stats error
by Stéphane Cottin 03 Jun '14

03 Jun '14

Hello, Errors still present after upgrading to 2.2.13 : stats: Error: Mail server input error: UPDATE-SESSION test(a)example.com imap: stats shrank: mlpath 378 < 379 stats: Error: Mail server input error: UPDATE-SESSION test(a)example.com imap: stats shrank: mlpath 1 < 2 stats: Error: Mail server input error: UPDATE-SESSION test(a)example.com pop3: stats shrank: mlpath 4 < 8 stats: Error: Mail server input error: UPDATE-SESSION test(a)example.com imap: stats shrank: mrbytes 6028260 < 7487934 stats: Error: Mail server input error: UPDATE-SESSION test(a)example.com imap: stats shrank: mrbytes 11134652 < 13009233 […] doveconf -n : # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.2.53-xenU-8869-x86_64 x86_64 Debian 7.4 auth_mechanisms = plain login cram-md5 default_client_limit = 3003 lda_mailbox_autocreate = yes mail_plugins = " quota stats zlib" 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 vacation-seconds 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 = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { antispam_backend = dspam antispam_dspam_args = --source=error;--user;%u;--deliver= antispam_dspam_binary = /usr/bin/dspamc antispam_dspam_notspam = --class=innocent antispam_dspam_result_header = X-DSPAM-Result antispam_dspam_spam = --class=spam antispam_signature = X-DSPAM-Signature antispam_signature_missing = move antispam_spam = Junk antispam_spam_pattern_ignorecase = Junk;Junk.* antispam_trash = trash;Trash;Deleted Items;Deleted Messages fts = lucene fts_lucene = whitespace_chars=@. quota = maildir:User quota quota_rule2 = Trash:storage=+100M quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +vacation-seconds sieve_vacation_default_period = 3h sieve_vacation_max_period = 30d sieve_vacation_min_period = 3m stats_refresh = 30 secs zlib_save = gz zlib_save_level = 9 } protocols = " imap sieve pop3" recipient_delimiter = - service imap-login { service_count = 0 vsz_limit = 256 M } service quota-warning { executable = script /usr/bin/quota-warning.sh unix_listener quota-warning { user = vpopmail } user = vpopmail } service stats { fifo_listener stats-mail { mode = 0600 user = vpopmail } } ssl_cert = </etc/dovecot/dovecot.crt ssl_key = </etc/dovecot/private/dovecot.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = " quota stats zlib sieve" } protocol imap { mail_max_userip_connections = 20 mail_plugins = " quota stats zlib fts fts_lucene antispam imap_zlib imap_quota imap_stats" } Stéphane

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[Dovecot] Postfix mailing list suggestion
by Christian Vaas 03 Jun '14

03 Jun '14

Can anyone suggest a good mailing list for postfix users? Thanks Chris

2 1

Re: [Dovecot] Odd ownership of the dovecot-uidlist file
by Bruce 03 Jun '14

03 Jun '14

Hi Robert (and list), See my response below, On 27/05/14 23:05, dovecot-request(a)dovecot.org wrote: > Message: 4 Date: Mon, 26 May 2014 19:50:01 -0700 From: Robert L > Mathews <lists(a)tigertech.com> To: Dovecot Mailing List > <dovecot(a)dovecot.org> Subject: Re: [Dovecot] Odd ownership of the > dovecot-uidlist file Message-ID: <5383FD59.9050809(a)tigertech.com> > Content-Type: text/plain; charset=UTF-8 On 5/26/14, 6:06 PM, > dclist.hook(a)hook.net.nz wrote: >> >It would be great if someone can give us some hints where the problem >> >maybe as this has us stumped. > Have you tried "stat dovecot-uidlist" after it's changed to look at all > three times of the file? > > The "Change" time is probably more interesting than the modification > time. It should show the time that the ownership was altered or the file > recreated, and maybe you can look at the logs to see what happened then. Thanks for the suggestion, we have had another occurrence of the wrong ownership on the dovecot-uid today. And we took a stat of the file but the logs around the time dont give any indication of the incorrect user logging in, a dovecot error or anything helpful. This is the log entry for the user as the issue started occurring: Jun 3 11:18:13 brio dovecot: pop3-login: Login: user=<hamish@XXXXX>, method=APOP, rip=x.x.x.x, lip=x.x.x.x, mpid=31874, TLS, session=<Cfr6m+L6bgB2lKNI> Jun 3 11:18:13 brio dovecot: Dovecot postlogin.sh running as hamish@XXXXX (/mnt/spool/keepers/h/XXXXX/hamish) userid = 7053 (7053) - uidlist = 7053 Jun 3 11:18:13 brio dovecot: Dovecot for hamish@XXXXX finished, uidlist now = 7053 Jun 3 11:28:13 brio dovecot: pop3(hamish@XXXXX): Disconnected for inactivity top=0 (0 b), retr=0 (0 b), messages=380 (41770867 b), del=0 Jun 3 11:38:51 brio dovecot: pop3-login: Login: user=<hamish@XXXXX>, method=APOP, rip=x.x.x.x, lip=x.x.x.x, mpid=16538, TLS, session=<EyrJ5eL6eAB2lKNI> Jun 3 11:38:51 brio dovecot: Dovecot postlogin.sh running as hamish@XXXXX (/mnt/spool/keepers/h/XXXXX/hamish) userid = 7053 (7053) - uidlist = 26624 Jun 3 11:38:51 brio dovecot: Dovecot for hamish@XXXXX finished, uidlist now = 26624 Jun 3 11:38:51 brio dovecot: pop3(hamish@XXXXX): Error: open(/mnt/spool/keepers/h/XXXXX/hamish/Maildir/dovecot-uidlist) failed: Permission denied Jun 3 11:38:51 brio dovecot: pop3(hamish@XXXXX): Error: open(/mnt/spool/keepers/h/XXXXX/hamish/Maildir/dovecot-uidlist) failed: Permission denied Jun 3 11:38:51 brio dovecot: pop3(hamish@XXXXX): Error: Couldn't init INBOX: Internal error occurred. Refer to server log for more information. [2014-06-03 11:38:51] Jun 3 11:38:51 brio dovecot: pop3(hamish@XXXXX): Mailbox init failed top=0 (0 b), retr=0 (0 b), messages=0 (0 b), del=0 You will notice our postlogin script spits out some information about the uidlist file both before it starts and after it finishes which shows uid it as running as and the owner of the uidlist file. For reference this is the current script (we have pulled a lot of the extra stuff we were doing out for testing): -- 8<-- #!/bin/bash # WARNING: Be sure to use mail_drop_priv_before_exec=yes, otherwise the files are created as root! logger -t dovecot -p mail.info "Dovecot postlogin.sh running as $USER ($HOME) userid = $EUID ($UID) - uidlist = `stat $HOME/Maildir/dovecot-uidlist -c %u`" # Removed the exec so we can run something after the login. Once the uid list issue is fixed this should be set back #exec "$1" "$1" logger -t dovecot -p mail.info "Dovecot for $USER finished, uidlist now = `stat $HOME/Maildir/dovecot-uidlist -c %u`" -- 8<-- root@brio:/mnt/spool/keepers/h/XXXXXXX/hamish/Maildir# stat dovecot-uidlist File: `dovecot-uidlist' Size: 26819 Blocks: 56 IO Block: 1048576 regular file Device: 1ah/26d Inode: 9424182 Links: 3 Access: (0600/-rw-------) Uid: (26624/info-14552) Gid: (11307/domain14552) Access: 2014-06-03 11:18:05.000000000 +1200 Modify: 2014-06-03 01:55:19.000000000 +1200 Change: 2014-06-03 11:18:33.000000000 +1200 Birth: - The stat says the change happened at 11:18:33, so we looked at the logs around that time: Jun 3 11:18:32 brio dovecot: imap-login: Login: user=<test@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=647, session=<Y6oZneL6vwDSMGzL> Jun 3 11:18:32 brio dovecot: pop3(enquiry@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=64 (7363643 b), del=0 Jun 3 11:18:32 brio dovecot: Dovecot postlogin.sh running as test@xxx/test) userid = 1667 (1667) - uidlist = 1667 Jun 3 11:18:32 brio dovecot: pop3-login: Login: user=<test@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=652, session=<GDsaneL6nwDSMGzL> Jun 3 11:18:32 brio dovecot: imap(test@xxx): Disconnected: Logged out bytes=9/360 Jun 3 11:18:32 brio dovecot: pop3(haidee.b@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=81 (17665182 b), del=0 Jun 3 11:18:32 brio dovecot: Dovecot for test@xxx finished, uidlist now = 1667 Jun 3 11:18:32 brio dovecot: Dovecot postlogin.sh running as test@xxx/test) userid = 1667 (1667) - uidlist = 1667 Jun 3 11:18:32 brio dovecot: Dovecot for test@xxx finished, uidlist now = 1667 Jun 3 11:18:32 brio dovecot: pop3(test@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=1 (1756 b), del=0 Jun 3 11:18:32 brio dovecot: pop3(nz@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=0 (0 b), del=0 Jun 3 11:18:32 brio dovecot: imap-login: Login: user=<manager@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=667, session=<hCUeneL6sADAqMjK> Jun 3 11:18:32 brio dovecot: Dovecot postlogin.sh running as manager@xxx/manager) userid = 12397 (12397) - uidlist = 12397 Jun 3 11:18:32 brio dovecot: Dovecot for manager@xxx finished, uidlist now = 12397 Jun 3 11:18:32 brio dovecot: imap(manager@xxx): Disconnected: Logged out bytes=91/873 Jun 3 11:18:32 brio dovecot: pop3-login: Login: user=<amanda@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=675, session=<NeMeneL6rgDLraCP> Jun 3 11:18:32 brio dovecot: Dovecot postlogin.sh running as amanda@xxx/amanda) userid = 24293 (24293) - uidlist = 24293 Jun 3 11:18:32 brio dovecot: Dovecot for amanda@xxx finished, uidlist now = 24293 Jun 3 11:18:32 brio dovecot: pop3(anton@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=603 (57517089 b), del=0 Jun 3 11:18:32 brio dovecot: pop3-login: Login: user=<admin@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=685, TLS, session=<hiAjneL6vgDemmai> Jun 3 11:18:32 brio dovecot: Dovecot postlogin.sh running as admin@xxx/admin) userid = 25119 (25119) - uidlist = 25119 Jun 3 11:18:32 brio dovecot: Dovecot for admin@xxx finished, uidlist now = 25119 Jun 3 11:18:32 brio dovecot: pop3-login: Login: user=<info@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=691, session=<ZJQkneL6SgB97OUI> Jun 3 11:18:32 brio dovecot: pop3-login: Login: user=<robb@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=695, session=<7MskneL6TAB97O9T> Jun 3 11:18:32 brio dovecot: Dovecot postlogin.sh running as info@xxx/info) userid = 13732 (13732) - uidlist = 13732 Jun 3 11:18:32 brio dovecot: Dovecot for info@xxx finished, uidlist now = 13732 Jun 3 11:18:32 brio dovecot: Dovecot postlogin.sh running as robb@xxx/robb) userid = 21760 (21760) - uidlist = 21760 Jun 3 11:18:32 brio dovecot: Dovecot for robb@xxx finished, uidlist now = 21760 Jun 3 11:18:33 brio dovecot: pop3(number5@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=19 (422734 b), del=0 Jun 3 11:18:33 brio dovecot: pop3(admin@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=256 (8614214 b), del=0 Jun 3 11:18:33 brio dovecot: pop3(info@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=227 (56540919 b), del=0 Jun 3 11:18:33 brio dovecot: pop3(amanda@xxx): Disconnected: Logged out top=0 (0 b), retr=1 (20185 b), messages=69 (5243134 b), del=0 Jun 3 11:18:33 brio dovecot: pop3-login: Login: user=<sbreed@xxx>, method=APOP, rip=x.x.x.x, lip=x.x.x.x, mpid=712, session=<brAtneL6LgBuiOW3> Jun 3 11:18:33 brio dovecot: Dovecot postlogin.sh running as sbreed@xxx/sbreed) userid = 21761 (21761) - uidlist = 21761 Jun 3 11:18:33 brio dovecot: Dovecot for sbreed@xxx finished, uidlist now = 21761 Jun 3 11:18:33 brio dovecot: pop3(robb@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=0 (0 b), del=0 Jun 3 11:18:33 brio dovecot: imap-login: Login: user=<gary@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=721, session=<z0MvneL6swDAqMjK> Jun 3 11:18:33 brio dovecot: Dovecot postlogin.sh running as gary@xxx/gary) userid = 26671 (26671) - uidlist = 26671 Jun 3 11:18:33 brio dovecot: Dovecot for gary@xxx finished, uidlist now = 26671 Jun 3 11:18:33 brio dovecot: imap(gary@xxx): Disconnected: Logged out bytes=394/10899 Jun 3 11:18:34 brio dovecot: imap-login: Login: user=<sales@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=733, session=<0kc2neL6tgDAqMjK> Jun 3 11:18:34 brio dovecot: Dovecot postlogin.sh running as sales@xxx/sales) userid = 16696 (16696) - uidlist = 16696 Jun 3 11:18:34 brio dovecot: Dovecot for sales@xxx finished, uidlist now = 16696 Jun 3 11:18:34 brio dovecot: pop3-login: Login: user=<tmeha@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=741, session=<OKg4neL69gB97O9T> Jun 3 11:18:34 brio dovecot: Dovecot postlogin.sh running as tmeha@xxx/tmeha) userid = 4338 (4338) - uidlist = 4338 Jun 3 11:18:34 brio dovecot: Dovecot for tmeha@xxx finished, uidlist now = 4338 Jun 3 11:18:34 brio dovecot: imap(sales@xxx): Disconnected: Logged out bytes=467/14224 Jun 3 11:18:34 brio dovecot: pop3-login: Login: user=<christine@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=753, session=<yrM9neL6xgDbWELK> Jun 3 11:18:34 brio dovecot: pop3-login: Login: user=<john@xxx>, method=APOP, rip=x.x.x.x, lip=x.x.x.x, mpid=754, session=<w7I9neL6JAB5SN1a> Jun 3 11:18:34 brio dovecot: Dovecot postlogin.sh running as christine@xxx/christine) userid = 29127 (29127) - uidlist = 29127 Jun 3 11:18:34 brio dovecot: Dovecot for christine@xxx finished, uidlist now = 29127 Jun 3 11:18:34 brio dovecot: Dovecot postlogin.sh running as john@xxx/john) userid = 15027 (15027) - uidlist = 15027 Jun 3 11:18:34 brio dovecot: Dovecot for john@xxx finished, uidlist now = 15027 Jun 3 11:18:34 brio dovecot: pop3-login: Login: user=<res@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=769, TLS, session=<0oM/neL6YwB97a8j> Jun 3 11:18:34 brio dovecot: Dovecot postlogin.sh running as res@xxx/res) userid = 35375 (35375) - uidlist = 35375 Jun 3 11:18:34 brio dovecot: Dovecot for res@xxx finished, uidlist now = 35375 Jun 3 11:18:34 brio dovecot: pop3(res@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=0 (0 b), del=0 Jun 3 11:18:34 brio dovecot: pop3(tmeha@xxx): Disconnected: Logged out top=0 (0 b), retr=0 (0 b), messages=0 (0 b), del=0 Jun 3 11:18:34 brio dovecot: imap-login: Login: user=<test@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=781, session=<bRREneL6PgDSMGx8> Jun 3 11:18:34 brio dovecot: Dovecot postlogin.sh running as test@xxx/test) userid = 1667 (1667) - uidlist = 1667 Jun 3 11:18:34 brio dovecot: Dovecot for test@xxx finished, uidlist now = 1667 Jun 3 11:18:34 brio dovecot: imap(test@xxx): Disconnected: Logged out bytes=9/360 Jun 3 11:18:34 brio dovecot: imap-login: Login: user=<priestley@xxx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, mpid=792, session=<aX1FneL6OADAqMjL> There is nothing there which indicates anything happened at 11:18:33 which would have gone anywhere near the uidlist file or even from the user that the file changed to (remembering that the directory permission would prevent them writing to the file anyway) The stat also says the change happened at 11:18:33, and there is nothing in the logs for that time which is abnormal (a whole bunch of other logins from other customers but nothing from those two users and no errors) Any further suggestions? Cheers, James

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Re: [Dovecot] list all emails from command line?
by Joseph Tam 03 Jun '14

03 Jun '14

> Therefore, I wanted to do some kind of "IMAP list" of the account, with > a command line tool: > > - specify username, pass and server, > - the tool would return a list of all email in their folders (message > ID, From, To, Date, Subject). > > I would run it i.e. daily and this would let me verify when the mail was > really visible in the account. > > Is anyone aware of a tool I could use to achieve that? Not offhand, but if you want a remote tool, it ought to be simple to cobble together some feeder script and netcat (or openssl s_client). It will also be simpler if you configure the master password feature so you don't have access to all user passwords. So something like this for dumping the INBOX contents #!/bin/sh master-user=masteru master-password=masterp while read user server; do netcat --ssl $server 993 <<_EOF_ >${user}.report 1 LOGIN ${user}*${master-user} ${master-password) 2 SELECT INBOX 3 ... 4 LOGOUT _EOF_ done I don't know enough IMAP to fill in "3 ..." to dump all headers, but I'm sure it's not hard to find out. It's even simpler if you don't need to do it remotely: just use doveadm fetch -A hdr MAILBOX '*' Joseph Tam <jtam.home(a)gmail.com>

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[Dovecot] list all emails from command line?
by Tomasz Chmielewski 03 Jun '14

03 Jun '14

This is not strictly Dovecot question, but a more general IMAP one. I'm running a Dovecot server and have a user who is claiming that some email sent to him, say, on 30 May, showed up in his mailbox on 02 Jun. I've checked Postfix logs, and the message was correctly received on 30 May and passed to Dovecot. A similar issue happens every few days. This leaves me with two possibilities: 1) Dovecot is somehow not presenting the new mail to the user in a "timely manner" 2) user's email program is broken Therefore, I wanted to do some kind of "IMAP list" of the account, with a command line tool: - specify username, pass and server, - the tool would return a list of all email in their folders (message ID, From, To, Date, Subject). I would run it i.e. daily and this would let me verify when the mail was really visible in the account. Is anyone aware of a tool I could use to achieve that? -- Tomasz Chmielewski http://www.sslrack.com

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[Dovecot] dovecot: lda(foo): Error: User foo doesn't have home dir set, disabling duplicate database
by Christian Hoffmann 02 Jun '14

02 Jun '14

Hello everyone, I have a small problem with dovecot installed on ubuntu-13.10. I use dovcot as LDA with a LDAP-passdb and a pam-passdb. The userdb is static. A mail to LDAP-user 'foo' is delivered with the error-message dovecot: lda(foo): Error: User foo doesn't have home dir set, disabling duplicate database A mail to the pam-user 'bar' will deliverd without this error. But both users should work with the static-userdb. Where is my mistake? Greetings Christian dovecot --version 2.1.7 ############################################ my dovecot.conf # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.11.0-22-generic i686 Ubuntu 13.10 ext4 disable_plaintext_auth = no first_valid_uid = 107 last_valid_uid = 109 listen = * log_timestamp = "%Y-%m-%d %H:%M:%S " mail_home = /var/mail/%u mail_location = maildir:/var/mail/%u/Maildir 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 passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } passdb { driver = pam } plugin { sieve = /var/mail/%u/dovecot.sieve sieve_before = /etc/dovecot/sieve.global/spamfilter.sieve } protocols = imap pop3 sieve service auth { user = root } service managesieve-login { inet_listener sieve { port = 2000 } } ssl_cert = </etc/exim4/exim.crt ssl_key = </etc/exim4/exim.key syslog_facility = local0 userdb { args = home=/var/mail/%u uid=Debian-exim gid=Debian-exim driver = static } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } protocol lda { auth_socket_path = /var/run/dovecot/auth-master hostname = ods2.schule.de mail_plugins = sieve postmaster_address = postmaster sendmail_path = /usr/sbin/sendmail } ############################## my dovecot-ldap.conf uris = ldaps://my.ldap.host.edu dn = chief dnpass = secret auth_bind = yes ldap_version = 3 base = ou=Personen,DC=my,DC=ldap,DC=host,DC=eu scope = subtree pass_filter = (&(objectClass=user)(cn=%u)(memberOf:1.2.840.113556.1.4.1941:=cn=Mail,ou=Gruppen,DC=my,DC=ldap,DC=host,DC=eu))

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