- dovecot - dovecot.org

[Dovecot] Upgrade dovecot 1.2.14 to 2.0.7
by Firebolt 16 Dec '10

16 Dec '10

Hi, I try to upgrade my dovecot server to the 2.x branch. But i have a big problem with the mailbox which are over quota. Server works fine, but when a mail arrived to user who is over quota, i have this error: Dec 16 14:54:42 lda(*******(a)*******.com): Panic: stream doesn't support seeking backwards OS: FreeBSD 6.1 Dovecot: 2.0.7 Could you help me to solve the problem. My dovecot.conf is: ssl = yes ssl_cert = </etc/ssl/mail2010.crt ssl_key = </etc/ssl/mail2010.key auth_mechanisms = plain login disable_plaintext_auth = no first_valid_uid = 143 info_log_path = /home/log/mail/dovecot/dovecot-info.log last_valid_uid = 143 log_path = /home/log/mail/dovecot/dovecot.log mail_location = maildir:/home/vmail/%d/%u mail_privileged_group = mail auth_socket_path = /var/run/dovecot/auth-userdb passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } userdb { driver = prefetch } pop3_uidl_format = %08Xu%08Xv protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = mail mode = 0660 user = postfix } unix_listener auth-userdb { group = mail mode = 0660 user = dovecot } user = $default_internal_user } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } service_count = 1 process_min_avail = 0 vsz_limit = 64M } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } protocol lda { postmaster_address = ************(a)********.com mail_plugins = quota log_path = /***********/dovecot-deliver.log info_log_path = /************/dovecot-deliver.log sendmail_path = /usr/lib/sendmail } protocol imap { mail_plugins = quota imap_quota imap_client_workarounds = delay-newmail } protocol pop3 { mail_plugins = quota pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } plugin { acl = vfile:/usr/local/etc/dovecot/dovecot-acls quota = maildir:User quota quota_rule = *:storage=20480k trash = /usr/local/etc/dovecot/dovecot-trash.conf }

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[Dovecot] adding servers to director_mail_servers
by Cor Bosman 16 Dec '10

16 Dec '10

Is there a specific order in which one has to add servers to director_mail_servers, Let's say I have 20 loadbalanced director servers (I dont, but for arguments sake). I want to add 5 servers to director_mail_servers. If I do this by restarting each director server 1 by 1 with an updated conf, it seems the 5 new servers dont get added. Or at least I dont get what makes it work eventually. Only after restarting a few times they seem to all want to agree on the new list of servers. Cor

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[Dovecot] users's mailboxes = mbox , shared mailboxes = maildir ... is it possible ?
by Frank Bonnet 16 Dec '10

16 Dec '10

Hello I solved my previous SSL problem by reinstalling dovecot2 ... :-) at FreeBSD 8.1 Now I'm using dovecot 2 , cool ... Actually my production mail server runs with MBOX format but reading the dovecot 2 wiki I read shared mailboxes are only working well with Maildir format. As I would like to setup some shared mailboxes, is it possible to have MBOX format for normal users ( UNIX NIS users ) and Maildir format for shared mailboxes to gain access to the per-user \Seen flag Or do I have to convert ALL my server to Maildir format ? Thanks a lot for your help

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[Dovecot] Plugins on a NFS
by Alex Baule 16 Dec '10

16 Dec '10

Hi timo..... I Made a plugin that's works fine in a Normal Partition and a GlusterFS enviroment too. in NFS it's intermitent, some times works, some times don't. Only the expunge part have this issue, i use stat to get the amont of hard link in a file. There is because of that (stat, hard link count) ? If is, there is some workarround to do !? Tks Timo !!!

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[Dovecot] xapian search plugin
by Vasiliy G Tolstov 16 Dec '10

16 Dec '10

Hello. Does anybody write fts xapian plugin to dovecot 2? If nobody - can You suggest me what i need to read and what source files i need no read to write own xapian fts plugin. Thank You for any comments. -- Vasiliy G Tolstov <v.tolstov(a)selfip.ru> Selfip.Ru

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[Dovecot] ssl enabled, but ssl_cert not set ( 2.0.7 freebsd 8.1 )
by Frank Bonnet 16 Dec '10

16 Dec '10

hello trying to install dovecot 2 on a fresh installed machine I get this error message : doveconf -n > dovecot-new.conf doveconf: Error: ssl enabled, but ssl_cert not set doveconf: Fatal: Error in configuration file /usr/local/etc/dovecot/dovecot.conf: ssl enabled, but ssl_cert not set the ssl config file look like the following : Thanks for any info. ## ## SSL settings ## # SSL/TLS support: yes, no, required. <doc/wiki/SSL.txt> ssl = yes # PEM encoded X.509 SSL/TLS certificate and private key. They're opened before # dropping root privileges, so keep the key file unreadable by anyone but # root. Included doc/mkcert.sh can be used to easily generate self-signed # certificate, just make sure to update the domains in dovecot-openssl.cnf ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem # If key file is password protected, give the password here. Alternatively # give it when starting dovecot with -p parameter. Since this file is often # world-readable, you may want to place this setting instead to a different # root owned 0600 file by using ssl_key_password = <path. #ssl_key_password = # PEM encoded trusted certificate authority. Set this only if you intend to use # ssl_verify_client_cert=yes. The file should contain the CA certificate(s) # followed by the matching CRL(s). (e.g. ssl_ca = </etc/ssl/certs/ca.pem) #ssl_ca = # Request client to send a certificate. If you also want to require it, set # auth_ssl_require_client_cert=yes in auth section. #ssl_verify_client_cert = no # Which field from certificate to use for username. commonName and # x500UniqueIdentifier are the usual choices. You'll also need to set # auth_ssl_username_from_cert=yes. #ssl_cert_username_field = commonName # How often to regenerate the SSL parameters file. Generation is quite CPU # intensive operation. The value is in hours, 0 disables regeneration # entirely. #ssl_parameters_regenerate = 168 # SSL ciphers to use #ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL -- Frank BONNET 01.45.92.66.17 Service des Moyens Informatique Generaux ESIEE PARIS Cité Descartes / BP 99 93162 NOISY-LE-GRAND Cedex http://www.esiee.fr <http://www.esiee.fr/>

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[Dovecot] problem with ~/mail/ namespace
by Tom Lieuallen 16 Dec '10

16 Dec '10

We just changed from UW imap last night and one of our bigger problems right now is that the ~/mail/ compatibility namespace doesn't seem to work. dovecot 2.0.8 Dec 15 12:01:52 zen.engr.oregonstate.edu dovecot: [ID 583609 mail.warning] imap(tom2): Warning: Subscriptions file /nfs/rack/u4/t/tom2/mail/.subscriptions: Ignoring invalid entry: ~/mail/foo1/folder1 Dec 15 12:01:52 zen.engr.oregonstate.edu dovecot: [ID 583609 mail.warning] imap(tom2): Warning: Subscriptions file /nfs/rack/u4/t/tom2/mail/.subscriptions: Ignoring invalid entry: ~tom2/mail/foo1/folder1 from .subscriptions: ~/mail/foo1/folder1 ~tom2/mail/foo1/folder1 in 10-mail.conf namespace { type = private separator = / prefix = inbox = yes } # for backwards compatibility: namespace { type = private separator = / prefix = mail/ hidden = yes list = no } namespace { type = private separator = / prefix = ~/mail/ hidden = yes list = no } namespace { type = private separator = / prefix = ~%u/mail/ hidden = yes list = no } What's funny is that it appears to work with a preauthenticated session or by using openssl to connect to port 993. 1 list "~/mail/" * * LIST (\NoInferiors \UnMarked) "/" "~/mail/testfolder" * LIST (\NoInferiors \UnMarked) "/" "~/mail/Trash" * LIST (\NoInferiors \UnMarked) "/" "~/mail/Sent" * LIST (\Noselect \HasChildren) "/" "~/mail/foo1" * LIST (\NoInferiors \UnMarked) "/" "~/mail/foo1/folder1" * LIST (\Noselect \HasChildren) "/" "~/mail/foo2" * LIST (\NoInferiors \UnMarked) "/" "~/mail/foo2/folder1" 1 OK List completed. 1 select ~/mail/foo2/folder1 * OK [CLOSED] Previous mailbox closed. * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 1 EXISTS * 0 RECENT * OK [UIDVALIDITY 1274985137] UIDs valid * OK [UIDNEXT 2] Predicted next UID * OK [HIGHESTMODSEQ 1] Highest 1 OK [READ-WRITE] Select completed. We're seeing this with at least thunderbird and outlook. thank you Tom Lieuallen Oregon State University

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[Dovecot] Dovecot 2.0.8 don´t recognize auth user format
by Wilberth Perez 15 Dec '10

15 Dec '10

My configuration file have this lines: # doveconf | grep user auth_anonymous_username = anonymous auth_master_user_separator = auth_socket_path = auth-userdb auth_ssl_username_from_cert = no auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@ auth_username_format = %Lu <-----(in version 1.2.10 this work fine) auth_username_translation = default_internal_user = dovecot default_login_user = dovenull director_user_expire = 15 mins login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c mail_max_userip_connections = 10 in this new version, my user authentication fails: Debug: shadow(wperez(a)mydomain,1.2.3.4): lookup Info: shadow(wperez(a)mydomain,1.2.3.4): unknown user auth: Debug: client out: FAIL 2 user=wperez@mydomain in my server only exists the user wperez, but dovecot uses the user "wperez@mydomain" in this new version auth format changes? Thank you.

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[Dovecot] Trying to populate dovecot with outlook contacts
by Spyros Tsiolis 15 Dec '10

15 Dec '10

Hello, What the subject says. I am trying, that is. OK, here's the story. Users very lazy. Don't want to write down their contact details from scratch. Here's what I thought : migrate (export?) contacts from outlook to mozilla thunderbird. Then find a way to make thunderbird "talk" to dovecot, so that the latter can import the contact details from mozilla tb. Any ideas ? Will it work ? Am I ranting ? :-) Thank you all, s. ---- "I merely function as a channel that filters music through the chaos of noise" - Vangelis

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[Dovecot] Problem after upgrade dovecot v2.0.8
by Wilberth Perez 15 Dec '10

15 Dec '10

Hello, upgrade Dovecot from v1.2.10 to v2.0.8, after build a new configuration file following instructions of http://wiki2.dovecot.org/Upgrading/2.0 run dovecot I get this: auth: Error: Fatal: Dovecot version mismatch: Master is v2.0.8, dovecot-auth is v1.2.10 (if you don't care, set version_ignore=yes) log: Error: service(auth): child 3389 returned error 89 (Fatal failure) master: Error: service(auth): command startup failed, throttling Did any SSL configuration is missing? I am currently authenticating with dovecot and postfix. Any knows , how could i solved this problem? Thanks.

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Re: [Dovecot] Question about "slow" storage but fast cpus, plenty of ram and dovecot
by Stan Hoeppner 15 Dec '10

15 Dec '10

Patrick Westenberg put forth on 12/11/2010 5:12 AM: > Stan Hoeppner schrieb: > >> So, either: >> >> 2. Move indexes to memory > > What steps have to be done and what will the configuration look like > to have your indexes in memory? Regarding Dovecot 1.2.x, for maildir, I believe it would be something like this: mail_location = maildir:~/Maildir:INDEX=MEMORY The ":INDEX=MEMORY" disables writing the index files to disk, and as the name implies, I believe, simply keeps indexes in memory. The docs say: "If you really want to, you can also disable the index files completely by appending :INDEX=MEMORY." My read of that is that indexing isn't disabled completely, merely storing the indexes to disk is disables. The indexes are still built and maintained in memory. Timo, is that correct? Also, due to the potential size of the index files (mine alone are 276 MB on an 877 MB mbox), you'll need to do some additional research to see if this is a possibility for you. If using a ramdisk, 100 mail boxen like mine would require ~ 27.6 GB or RAM just for the index files. This would not be logical to do or feasible given the amount of RAM required. I don't know if, or how much, storing them in RAM via :INDEX=MEMORY consumes, as compared to using a ramdisk. The memory consumption may be less or it may be more. Timo should be able to answer this, and give a recommendation as to whether this is even a sane thing to do. -- Stan

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[Dovecot] Connection queue full on 2.0.8
by Patrick McLean 15 Dec '10

15 Dec '10

Hi, I can't find any references to this problem on 2.x. I upgraded to 2.0.8 last night, and now I am getting these errors in the logs (along with the server refusing new connections): > Dec 8 09:46:52 orford dovecot: imap-login: Disconnected: Connection queue full (no auth attempts): rip=x.x.x.x, lip=x.x.x.x, TLS > Dec 8 09:47:16 orford dovecot: imap-login: Disconnected: Connection queue full (no auth attempts): rip=x.x.x.x, lip=x.x.x.x, TLS handshaking I have unsuccessfully tried to tweak my settings to prevent this problem, and any help would be appreciated. The server has plenty of power for increasing process limits, etc. Below is the output of "dovecot -n". We have users with some _very_ large mailboxes (~400 000 messages) so some of the limits might appear excessive.: > # 2.0.8: /etc/dovecot/dovecot.conf > # OS: Linux 2.6.35-gentoo-r5+ x86_64 Gentoo Base System release 2.0.1 > auth_cache_size = 10 M > auth_mechanisms = plain login > auth_worker_max_count = 80 > default_client_limit = 2048 > default_process_limit = 256 > default_vsz_limit = 512 M > first_valid_uid = 125 > last_valid_uid = 20000 > listen = 127.0.0.1 x.x.x.x > login_greeting = IMAP ready. > mail_location = maildir:~/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 > mdbox_rotate_size = 10 M > namespace { > hidden = no > inbox = yes > list = yes > location = > prefix = > subscriptions = yes > type = private > } > namespace { > hidden = yes > list = no > location = > prefix = INBOX. > subscriptions = yes > type = private > } > namespace { > hidden = no > list = yes > location = maildir:/home/shared/Maildir:CONTROL=~/Maildir/control/shared:INDEX=~/Maildir/index/shared > prefix = shared. > subscriptions = no > type = public > } > passdb { > args = failure_show_msg=yes > driver = pam > } > plugin { > quota = fs:User quota:user > quota_warning2 = storage=80%% quota-warning 80 %u > sieve = ~/dovecot.sieve > sieve_dir = ~/sieve > } > protocols = imap pop3 > service auth { > unix_listener /var/spool/postfix/private/auth { > group = postfix > mode = 0666 > user = postfix > } > } > service imap-login { > process_min_avail = 5 > } > service imap { > process_limit = 2048 > } > service managesieve-login { > inet_listener sieve_deprecated { > port = 2000 > } > } > service pop3 { > process_limit = 128 > } > ssl_cert = </etc/ssl/dovecot/imap.crt > ssl_key = </etc/ssl/dovecot/imap.key > userdb { > driver = passwd > } > verbose_proctitle = yes > protocol lda { > mail_plugins = sieve quota > } > protocol imap { > mail_max_userip_connections = 10 > mail_plugins = " quota imap_quota acl" > } > protocol sieve { > mail_max_userip_connections = 10 > } > protocol pop3 { > mail_max_userip_connections = 3 > pop3_uidl_format = %u-%v > ssl_cert = </etc/dovecot/certs/pop3.pem > ssl_key = </etc/dovecot/certs/pop3.key > }

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[Dovecot] question about snarf plugin in dovecot 2
by Tom Lieuallen 15 Dec '10

15 Dec '10

I'm trying to get the snarf plugin working with dovecot 2.0.7. Specifically, I want to use the UW-IMAP style optional snarfing. I'm looking at the wiki2 documentation. The first question is whether the UW-IMAP optional snarfing will require any changes to the mail_location. The first section suggests (but doesn't specifically state, which I'd propose be clarified) that mail_location be updated to point at ~/mbox for INBOX. However, with the optional snarfing, sometimes inbox will be at /var/mail and for some users, it'll be ~/mbox. What, if anything, do I do to mail_location? Does it matter where (in which config file) the plugin block is placed? I put all of my snarf configuration in 10-mail.conf. It's not working; not snarfing and not reading mail from ~/mbox (how would it, I have yet to tell it to). The following are excerpts from 10-mail.conf mail_location = mbox:~/mail:INBOX=/var/mail/%u:INDEX=/a2/imap-index/%u .... namespace { type = private separator = / prefix = inbox = yes } .... namespace snarf { prefix = /snarf separator = / location = mbox:/private/dovecot/var/run/dovecot/empty:INBOX=/var/mail/%u:INDEX=MEMORY list = no hidden = yes } plugin { snarf = /snarf/INBOX mbox_snarf = ~/mbox } Thank you BTW, the dovecot-2.0.7/docs/wiki appear to be from wiki1, not wiki2... :-) Tom Lieuallen Oregon State University

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[Dovecot] After-delivery sieve processing
by Daniel L. Miller 14 Dec '10

14 Dec '10

Is it possible to run sieve against an existing mailbox? My application: I've got a mailbox that stores status messages from multiple sites. It's easier to check up on recent events by having them all in one folder. However, after I've read them, I'd like to have them archived to individual folders per site. I currently have a sieve script that uses "fileinto" to sort the mails - but I'm thinking of removing it from deliver if I can run it as a manual job later. I suppose another method would be to duplicate the mails on delivery into both the main folder and the per site folders, then delete after I've read them - but for whatever reason that strikes me as inelegant. -- Daniel

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[Dovecot] Migration from UW-IMAP
by Daniel Senie 14 Dec '10

14 Dec '10

I am attempting to test out dovecot on a server on a separate IP address from the live, functioning UW-IMAP. I am having mixed results with dovecot. An entirely new account that's never been used with UW-IMAP seems to work fine, but that's really not the point of the exercise. If I try changing over an existing account to use dovecot, I get a variety of issues. Testing with Apple Mail.app, if I synchronize the account, the INBOX stops displaying. So off to plan B, and debug via command line commands. I tried connecting to Dovecot. It was able to list the mailboxes for me. I asked for status on INBOX. Sometimes I get an error back in the IMAP stream, sometimes not. Either way, the log shows complaints about creating mail/.imap and below (we use mbox format, plus /var/mail/%u for inbox). I have active namespace compatibility recommended by the Wiki so that clients specifying "mail/" and clients not specifying an imap path both work. With the test account, I proved this functionality is working. At this point I clearly have some issues, and could use some help figuring out what to ask for help with, i.e. how to proceed to debug this without damaging the existing UW-IMAP setup in the process. The goal is to cut over to dovecot once I can be sure it really is working compatibly, but until then I have a large user base and can't blow everything up. And yes, I really, truly have RTFM (i.e. read the Wiki, the troubleshooting pages, the migration pages).

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[Dovecot] Incorrect W value after filesystem corruption
by Bob 14 Dec '10

14 Dec '10

Dec 14 00:15:54 vm dovecot: IMAP(####@####): Maildir filename has wrong W value: /var/vmail/#####/####/cur/#########.M###########.??.????.??.??,S=4951,W=5057:2,RSa Dear Dovecot elite, This morning I woke up to find my mail server hard disk controller had gone crazy and decided to corrupt my file system. After over eight passes with the fsck and a new machine I have mostly recovered but this being a personal server the backups were a half-job. So for speed I recovered the mail directly off the bad file system. Most of the data was fine but a few files were corrupt and as a result I have found Dovecot to be a real pain when it comes to handling a wrong W value. I am having to separately look at the mail.log and just systematically remove the W value as a quick work-around. But it seems to me that it would be much easier to have this done by Dovecot when it realises it has this wrong value, especially as Dovecot seems to drop the connection of that user after encountering this problem. Can I suggest as an improvement this scenario is handled better? I saw one posting which said "this should never happen" but clearly it can and I think there could be better handing of it perhaps? Regards, Bob ============== I am configured as vmail with MySQL back-end, postfix, policyd-weight and mailscanner. # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.26-2-amd64 x86_64 Debian 5.0.7 ext3 base_dir: /var/run/dovecot/ log_timestamp: %Y-%m-%d %H:%M:%S protocols: imaps pop3s ssl_cert_file: xxx ssl_key_file: xxx login_dir: /var/run/dovecot//login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login mail_max_userip_connections(default): 30 mail_max_userip_connections(imap): 30 mail_max_userip_connections(pop3): 10 first_valid_uid: 150 last_valid_uid: 150 mail_privileged_group: mail mail_location: maildir:/var/vmail/%d/%u mbox_write_locks: fcntl dotlock mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 lda: postmaster_address: postmaster(a)orbit.me.uk sendmail_path: /usr/lib/sendmail auth_socket_path: /var/run/dovecot/auth-master mail_plugins: sieve auth default: user: nobody passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 432 user: vmail group: mail plugin: trash: /etc/dovecot/dovecot-trash.conf sieve: /var/vmail/%d/%u/.sieve sieve_global_path: /var/vmail/globalsieverc

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[Dovecot] Courier-mta with Dovecot LDA
by komodo 14 Dec '10

14 Dec '10

Hi all I have setup dovecot lda instead of maildrop on my courier server. Delivery is working, sieve plugin too, but i can't figure out why lda can't send emails via sendmail (vacation). I always get error Error: Sendmail process terminated abnormally, exit status 67 And i know why, but i don't know how to setup lda to make it work . Here is .courier file where is redirect to lda. | /usr/libexec/dovecot/deliver -a $RECIPIENT -f $SENDER But the deliver does not pass recipient address to sendmail. Here is some output of strace execve("/usr/libexec/dovecot/deliver", ["/usr/libexec/dovecot/deliver", "-a", "komodo@somedomain", "-f", "someuser@somedomain"], [/* 22 vars */]) = 0 So it's clear that deliver have those variables, but then i can see this execve("/usr/sbin/sendmail", ["/usr/sbin/sendmail", "-i", "-f", "<>", "--", "someuser@somedomain"], [/* 2 vars */] <unfinished ...> And there is empty -f , so here is the problem. How should i setup this to make it work correctly ? Here is my config [root(a)OVZ.mail ~]# dovecot -n # 2.0.7: /etc/dovecot/dovecot.conf # OS: Linux 2.6.18-194.8.1.el5.028stab070.5 x86_64 CentOS release 5.5 (Final) disable_plaintext_auth = no hostname = ovzmail listen = 10.0.10.34 mail_location = maildir:~/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 mbox_write_locks = fcntl namespace { inbox = yes location = prefix = INBOX. separator = . type = private } namespace { location = maildir:/home/shared/Maildir prefix = spam_learner. separator = . type = public } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap sieve ssl_cert = </etc/pki/dovecot/certs/server.pem ssl_key = </etc/pki/dovecot/private/server.pem userdb { driver = prefetch } protocol lda { mail_plugins = " sieve" } protocol imap { mail_max_userip_connections = 40 } Many thanks Martin

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[Dovecot] WLM and dovecot
by Agim Cami 14 Dec '10

14 Dec '10

Windows Live Mail seems to be a nice IMAP client! Do you have good or bad experiences of WLM with dovecot as server? Thanks!

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[Dovecot] FTS and compound searches
by Tony Pyro 13 Dec '10

13 Dec '10

Hello, New subscriber here. I noticed that the FTS index is not used in compound searches. Is this expected? Tested in 2.0.0 and 2.0.8: . search BODY "waldo" * SEARCH . OK Search completed (0.000 secs). . SEARCH CHARSET UTF-8 OR SUBJECT "waldo" FROM "waldo" * SEARCH . OK Search completed (1.768 secs). . SEARCH CHARSET UTF-8 OR SUBJECT "waldo" BODY "waldo" * OK Searched 0% of the mailbox, ETA 9605:25 * OK Searched 4% of the mailbox, ETA 6:39 * OK Searched 6% of the mailbox, ETA 6:58 * OK Searched 8% of the mailbox, ETA 6:54 It's a problem for us because the Afterlogic webmail client does not offer a body-only search. The two search options are From + To + Subject, or "entire messages", which puts together a large OR query: SRCH1069 SEARCH CHARSET UTF-8 OR (OR (OR FROM "waldo" TO "waldo") SUBJECT "waldo") BODY "waldo" I also checked to see whether the header fields are included in the FTS index but it didn't appear so. I got more results from the search "TO gmail.com" than from "BODY gmail.com" plugin { fts = squat } protocol imap { mail_plugins = " fts fts_squat" } Thanks!

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[Dovecot] postfix-dovecot-sasl help
by Ted To 13 Dec '10

13 Dec '10

I'm trying to set up SMTP authentication on my server and am getting an authentication failed error. My client is set up to automatically select authentication method and tries CRAM_MD5. The http://wiki.dovecot.org/HowTo/PostfixAndDovecotSASL suggests "passdb pam" and "userdb passwd" -- is it possible to configure sasl authentication using a dovecot.conf like http://pastebin.com/6JWE5jp1? Thanks in advance, Ted To

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[Dovecot] Question about "slow" storage but fast cpus, plenty of ram and dovecot
by javierdemiguel＠us.es 13 Dec '10

13 Dec '10

Hello We are using dovecot 1.2.x. In our setup we will have 1200 concurrent imap users (maildirs) and we have 2xraid5 sas 15k diks mounted by iSCSI. The dovecot server (RHEL 5 x64) is a virtual machine in our vmware esx cluster. We want to minimize disk I/O, what config options should we use. We can "exchange" CPU & RAM to minimize disk i/o. Should we change to dovecot 2.0? Maybe mdbox can help us? Maybe ext4 instead of ext3? Any idea is welcome. Regards Javier

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[Dovecot] Pigeonhole 0.2.2 - managesieve supports virtual namespaces?
by Tom Talpey 13 Dec '10

13 Dec '10

I got around to trying the 0.2.2 managesieve listener and it's not working for me. As soon as the client authenticates, the connection is closed and the following is logged on the server: > Dec 13 11:48:30 managesieve(xx(a)yy.com): Error: user xx(a)yy.com: Initialization failed: Namespace 'Mobile/': Unknown mail storage driver virtual > Dec 13 11:48:30 managesieve(xx(a)yy.com): Error: Invalid user settings. Refer to server log for more information. I do have such a virtual namespace defined in dovecot.conf, obviously, and it works fine with dovecot 2.0.8. Additionally, the sieve plugin is working fine for lda, dovecot's deliver is executing it perfectly. Do I need to add a setting or plugin to "protocol managesieve" for this? Combed the wiki to no avail.

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[Dovecot] extra fields with "passwd" userdb
by Patrick McLean 13 Dec '10

13 Dec '10

Hi, I am planning a migration of ~600 accounts to mdbox (from maildir) and was hoping to do some initial testing of certain account. I am hoping to use extra fields to migrate certain accounts in advance for testing, and I can't find info on setting up extra fields with the "passwd" backend. Is this possible, or will I have to use another approach?

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[Dovecot] Feature request
by Nikita Koshikov 13 Dec '10

13 Dec '10

Hello Timo, and all. Preface: From time to time we have problems with thunderbird. The problem is that mail client begin to sync users inbox (or other folder) and this process didn't stop. Last time we have this situation - our monitoring system shows unusual amount of imap traffic send to one of local hosts. This host was - terminal server and 20 users worked with their mailboxes that time. But normal 20 imap session can't fork that amount of traffic (5.2Gb). After measuring local thunderbird's cached mailboxes we find out that one user have local INBOX about 19Gb and size is rising. On server side - this mailbox was 89Mb. And after killing thunderbird in logs appear: Dec 10 17:35:53 IMAP(user@domain 192.168.2.92): Info: Disconnected: Logged out bytes=1133593/1175103 Dec 10 17:35:53 IMAP(user@domain 192.168.2.92): Info: Disconnected: Logged out bytes=15964/44364 Dec 10 17:35:53 IMAP(user@domain 192.168.2.92): Info: Disconnected: Logged out bytes=54758/944989 Dec 10 17:35:53 IMAP(user@domain 192.168.2.92): Info: Disconnected: Logged out bytes=6532/43930 Dec 10 17:35:53 IMAP(domain@domain 192.168.2.92): Info: Connection closed bytes=235408/4797272694 As you can see - 4.8Gb of data was send to this client - and who knows - what was that. So we have 5.2Gb send to host with 20 active sessions and 4.8Gb send to one user. Of course lifetime of this connection can be much more than last day, but problem disappeared after killing it. This is not single accident. But this one was hard to find out because of 20-25 users working at the same time from 1 server. So it will be great if dovecot has feature to limit the amount of data send per connection. For example: service imap { bytes_per_connection = 100Mb } And after limit reached - close connection and log warning. This will much simplify fights with sometimes become crazy imap clients. That do you think?

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[Dovecot] limit login concurencly from different ip
by Giovanni Mancuso 13 Dec '10

13 Dec '10

Hi, can i configure dovecot to limit the max number of login concurencly? I read in documentation that there is "mail_max_userip_connections", but in this way i limit the login that come from same ip. If the same user tries to connect from different ip, he succeeds. Can i do it? Thanks

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