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Fw: LMTP segfaulting constantly
by Toney Mareo 07 Jul '14

07 Jul '14

Hello I have the dmesg loaded with lmtp crash messages. My OS: No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 7.4 (wheezy) Release: 7.4 Codename: wheezy My postfix version: i postfix 2.9.6-2 amd64 High-performance mail transport agent ii postfix-doc 2.9.6-2 all Documentation for Postfix ii postfix-mysql 2.9.6-2 amd64 MySQL map support for Postfix ii postfix-pcre 2.9.6-2 amd64 PCRE map support for Postfix ii dovecot-antispam 2.0+20130822-21 amd64 Dovecot plugins for training spam filters ii dovecot-core 1:2.2.10-11 amd64 secure POP3/IMAP server - core files ii dovecot-imapd 1:2.2.10-11 amd64 secure POP3/IMAP server - IMAP daemon ii dovecot-lmtpd 1:2.2.10-11 amd64 secure POP3/IMAP server - LMTP server ii dovecot-managesieved 1:2.2.10-11 amd64 secure POP3/IMAP server - ManageSieve server ii dovecot-mysql 1:2.2.10-11 amd64 secure POP3/IMAP server - MySQL support ii dovecot-pop3d 1:2.2.10-11 amd64 secure POP3/IMAP server - POP3 daemon ii dovecot-sieve 1:2.2.10-11 amd64 secure POP3/IMAP server - Sieve filters support Wed Jun 18 13:09:14 2014] lmtp[17453]: segfault at 238 ip 00007f560c3c8ce4 sp 00007fff15b0a440 error 4 in libdovecot-sieve.so.0.0.0[7f560c3a2000+82000] [Wed Jun 18 15:56:22 2014] lmtp[17325]: segfault at 238 ip 00007f2b359aace4 sp 00007fffc3a63e10 error 4 in libdovecot-sieve.so.0.0.0[7f2b35984000+82000] [Mon Jun 23 06:56:44 2014] lmtp[1168]: segfault at 238 ip 00007f5ec34d2ce4 sp 00007fff76545070 error 4 in libdovecot-sieve.so.0.0.0[7f5ec34ac000+82000] [Mon Jun 23 09:47:01 2014] lmtp[20612]: segfault at 238 ip 00007f5fb3830ce4 sp 00007fffea15dc60 error 4 in libdovecot-sieve.so.0.0.0[7f5fb380a000+82000] [Mon Jun 23 10:19:31 2014] lmtp[24839]: segfault at 238 ip 00007f8098ddbce4 sp 00007fffff3f8af0 error 4 in libdovecot-sieve.so.0.0.0[7f8098db5000+82000] [Mon Jun 23 14:45:27 2014] lmtp[28080]: segfault at 238 ip 00007fc2ea901ce4 sp 00007fff528f62d0 error 4 in libdovecot-sieve.so.0.0.0[7fc2ea8db000+82000] [Tue Jun 24 13:58:35 2014] lmtp[31028]: segfault at 238 ip 00007f2c4c493ce4 sp 00007fff5ab22080 error 4 in libdovecot-sieve.so.0.0.0[7f2c4c46d000+82000] [Tue Jun 24 14:50:51 2014] lmtp[9487]: segfault at 238 ip 00007f384ca7ece4 sp 00007fff7a02c520 error 4 in libdovecot-sieve.so.0.0.0[7f384ca58000+82000] [Tue Jun 24 14:55:19 2014] lmtp[10541]: segfault at 238 ip 00007f640e9e3ce4 sp 00007fff9e538060 error 4 in libdovecot-sieve.so.0.0.0[7f640e9bd000+82000] [Tue Jun 24 20:37:47 2014] lmtp[5914]: segfault at 238 ip 00007f7869e11ce4 sp 00007fff962eaaf0 error 4 in libdovecot-sieve.so.0.0.0[7f7869deb000+82000] [Wed Jun 25 09:28:43 2014] lmtp[1855]: segfault at 238 ip 00007ff5c473ace4 sp 00007fff521f08e0 error 4 in libdovecot-sieve.so.0.0.0[7ff5c4714000+82000] [Thu Jun 26 08:11:30 2014] lmtp[4735]: segfault at 238 ip 00007ffe9017fce4 sp 00007fffbe67ed90 error 4 in libdovecot-sieve.so.0.0.0[7ffe90159000+82000] [Thu Jun 26 11:49:57 2014] lmtp[17082]: segfault at 238 ip 00007f5ce9e20ce4 sp 00007fff234152e0 error 4 in libdovecot-sieve.so.0.0.0[7f5ce9dfa000+82000] [Thu Jun 26 15:34:27 2014] lmtp[682]: segfault at 238 ip 00007ffa9c191ce4 sp 00007fff0c6ee870 error 4 in libdovecot-sieve.so.0.0.0[7ffa9c16b000+82000] [Thu Jun 26 16:43:17 2014] lmtp[15603]: segfault at 238 ip 00007f3994435ce4 sp 00007fff32b93500 error 4 in libdovecot-sieve.so.0.0.0[7f399440f000+82000] [Mon Jun 30 10:19:43 2014] lmtp[473]: segfault at 238 ip 00007fe0e4706ce4 sp 00007fff97b648b0 error 4 in libdovecot-sieve.so.0.0.0[7fe0e46e0000+82000] [Tue Jul 1 07:06:12 2014] lmtp[28516]: segfault at 238 ip 00007f62fbcfcce4 sp 00007fffdd76fd80 error 4 in libdovecot-sieve.so.0.0.0[7f62fbcd6000+82000] [Tue Jul 1 12:43:01 2014] lmtp[32438]: segfault at 238 ip 00007fc4bdda6ce4 sp 00007fff6f527820 error 4 in libdovecot-sieve.so.0.0.0[7fc4bdd80000+82000] [Wed Jul 2 13:21:20 2014] lmtp[28053]: segfault at 238 ip 00007f112a1d4ce4 sp 00007fff0706e350 error 4 in libdovecot-sieve.so.0.0.0[7f112a1ae000+82000] [Wed Jul 2 16:19:42 2014] lmtp[30986]: segfault at 238 ip 00007f7e0ad15ce4 sp 00007fff68c1b710 error 4 in libdovecot-sieve.so.0.0.0[7f7e0acef000+82000] [Wed Jul 2 16:36:18 2014] lmtp[2223]: segfault at 238 ip 00007f69ecc40ce4 sp 00007fff2e8783d0 error 4 in libdovecot-sieve.so.0.0.0[7f69ecc1a000+82000] [Thu Jul 3 09:14:59 2014] lmtp[30956]: segfault at 238 ip 00007f86f1dccce4 sp 00007fffae17fc70 error 4 in libdovecot-sieve.so.0.0.0[7f86f1da6000+82000] [Thu Jul 3 09:38:18 2014] lmtp[3631]: segfault at 238 ip 00007fae2d901ce4 sp 00007fff3f7a9270 error 4 in libdovecot-sieve.so.0.0.0[7fae2d8db000+82000] [Thu Jul 3 10:18:09 2014] lmtp[12435]: segfault at 238 ip 00007f49343bfce4 sp 00007fff29e64670 error 4 in libdovecot-sieve.so.0.0.0[7f4934399000+82000] [Fri Jul 4 11:34:27 2014] lmtp[22575]: segfault at 238 ip 00007f9e52493ce4 sp 00007fff765e9fe0 error 4 in libdovecot-sieve.so.0.0.0[7f9e5246d000+82000] [Fri Jul 4 11:49:37 2014] lmtp[26586]: segfault at 238 ip 00007f387638fce4 sp 00007fff624bf970 error 4 in libdovecot-sieve.so.0.0.0[7f3876369000+82000] [Sun Jul 6 13:49:15 2014] lmtp[15451]: segfault at 238 ip 00007fa435865ce4 sp 00007fff436a28f0 error 4 in libdovecot-sieve.so.0.0.0[7fa43583f000+82000] The server itself is working, but it's annoying seeing these messages in the logs. Sometimes when it's overloaded it refuses to authenticate users (i don't think this has to do with it). Any ideas what causes it? I have my debian wheezy updated to the latest. Thanks

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[help]how to refresh pigeonhole sieve vacation days data
by wuwei 07 Jul '14

07 Jul '14

hello everybody: I'm using dovecot with pigeonhole sieve Plugin.everything goes well.but when i use vacation module,i found a problem: I write a sieve with a vacation module in, and put it to the sieve location ,used *PUTSCRIPT* comand with *ManageSieve* and *set it ACTIVE*.It's work!I use A email send mail to him and receive an auto-reply.then ,I modify the sieve only change the days num from 7 to 1.Then I use B email send mail to him and receive an auto-reply too. The next day,I send two mails too.But only B receive the auto-reply.I thought that I would receive two mails too. so i think that A email's data in sieve maybe still 7 days.Then I restart the dovecot,but the problem still exsit. Is anyone know how to refresh the data or is their anyother way to solve the problem? thank you! -- View this message in context: http://dovecot.2317879.n4.nabble.com/help-how-to-refresh-pigeonhole-sieve-v… Sent from the Dovecot mailing list archive at Nabble.com.

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Assertion virtual-storage.c
by Thomas Leuxner 06 Jul '14

06 Jul '14

# 2.2.13 (dffc6dd2be0d): /etc/dovecot/dovecot.conf # OS: Linux 3.14-0.bpo.1-amd64 x86_64 Debian 7.5 Latest HG has issues with Virtual Mailboxes. I was unable to get it dump a core. Jul 5 07:46:51 nihlus dovecot: imap(tlx(a)leuxner.net): Panic: file virtual-storage.c: line 326 (virtual_backend_box_open): assertion failed: (!bbox->box->opened) Jul 5 07:46:51 nihlus dovecot: imap(tlx(a)leuxner.net): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x6ce3f) [0x7fe9e733ee3f] -> /usr/lib/dovecot/libdovecot.so.0(+0x6ce9e) [0x7fe9e733ee9e] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fe9e72f796e] -> /usr/lib/dovecot/modules/lib20_virtual_plugin.so(+0xa1d4) [0x7fe9e5ae01d4] -> /usr/lib/dovecot/modules/lib20_virtual_plugin.so(+0xa237) [0x7fe9e5ae0237] -> dovecot/imap(cmd_idle+0x45) [0x410595] -> dovecot/imap(command_exec+0x3c) [0x41849c] -> dovecot/imap() [0x4174e0] -> dovecot/imap() [0x417574] -> dovecot/imap(client_handle_input+0x115) [0x417855] -> dovecot/imap(client_input+0x72) [0x417c02] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4e) [0x7fe9e735002e] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xd7) [0x7fe9e7351057] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x9) [0x7fe9e73500b9] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fe9e7350138] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fe9e72fcdd3] -> dovecot/imap(main+0x298) [0x40c238] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7fe9e6f65ead] -> dovecot/imap() [0x40c39d] Jul 5 07:46:51 nihlus dovecot: imap(tlx(a)leuxner.net): Fatal: master: service(imap): child 37155 killed with signal 6 (core not dumped) Regards Thomas

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Re: number of users
by Andreas Tauscher 05 Jul '14

05 Jul '14

> No, this will not do it. Any user coming from an HTTP connection will > appear very briefly on the Dovecot server and is unlikely to appear > on the "doveadm who" list. This is a result of the HTTP > connectionless protocol, nothing to do with Dovecot (ie > connects-carries a brief data > transmission/commands-disconnects-connects again after a > predetermined time). The connection time is very brief, even though > you can probably catch a few if you insist on typing doveadm who. If like from Nick Edwards suggested a imapproxy is used it will. imapproxy is keeping the connection open. doveadm who will give you a list of all actual logged in users. Without imapproxy you are right: Every page reload will cause a login and a logoff. I get some webmail users by "accident". To get an overview how many users used roudcube within a period check the database table users/last_login. Andreas

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Disable user login for a few seconds ?
by Florent B 05 Jul '14

05 Jul '14

Hi all, I need to move e-mail files of my users from one file system to another. I use a MySQL backend on Dovecot 2.1. How can I do to disable temporary an account while moving files ? I have an "active" bit in my DB, but if I set it to 0, my MX servers are bouncing mails. How can I do to disable temporary an account ? In fact, I need dovecot not to do any change on files... I think I could change account password for a while, and reset it after migration, but it will disturb connected users. Maybe I could chmod 0 files on my old file system during migration ? How Dovecot will act ? Thank you :) Flo

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Shared Mailbox + LDAP Easy with this script
by Allan Cassaro 05 Jul '14

05 Jul '14

Hello guys, After some hours fighting with shared mailbox, I finally understand how it works - and, realy, I can't believe how easy it is! So, to help others like me and to improve the shared mailbox with Dovecot this script does all the "hard work". I don't know if this group permit attachments, so, let's the link: https://sites.google.com/site/allancassaro/mkshared.tar.gz Enjoy! ===== From README file ===== This is a simple code to help with Dovecot Public Shared Mailbox function. Just configure a public shared mailbox with ACLs, change the configuration file and run this program. How it works: 1) The program connect to the LDAP server and fetch groups from it (with ldap filter) 2) With groups, it fetches the members and owners (or any attribute you want); 3) It will walk into the "shared folder" folder base directory and: 3.1) Rename any directory that was renamed in LDAP (based on entryUUID ldap attribute); 3.2) Create diretories and skeletion (new, cur and tmp) of any group that exists in LDAP; 3.3) Optionaly, remove any "orphan" directory (wihtout a ldap entrey); Example: dn: cn=Everyone,ou=Shared_Mailbox, dc=example,dc=com objectClass: labeledURIObject objectClass: top objectClass: groupOfURLs cn: Everyone labeledURI: ldap:///ou=Users,dc=example,dc=com?uid?one?(objectClass=person) member: uid=user2,ou=users,dc=example,dc=com member: uid=user3,ou=users,dc=example,dc=com member: uid=user1,ou=users,dc=example,dc=com member: uid=user.surname,ou=users,dc=example,dc=com owner: uid=user4,ou=Users,dc=example,dc=com This will create a folder tree like this: /path/toshared/.Everyone /path/toshared/.Everyone/new /path/toshared/.Everyone/cur /path/toshared/.Everyone/tmp With permission file (/path/toshared/.Everyone/dovecot-acl): user=user1 lr ... user=user.surname lr user=user4 lrwstipekxa Hope this helps you! Enjoy. -- Use cópia oculta (BCC ou CCO) e apague dados pessoais no campo da mensagem ao encaminhar qualquer e-mail. http://allan.cassaro.googlepages.com

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Shared Mailbox + LDAP Easy with this script
by Allan Cassaro 04 Jul '14

04 Jul '14

Hello guys, After some hours fighting with shared mailbox, I finally understand how it works - and, realy, I can't believe how easy it is! So, to help others like me and to improve the shared mailbox with Dovecot this script does all the "hard work". I don't know if this group permit attachments, so, let's the link: https://sites.google.com/site/allancassaro/mkshared.tar.gz Enjoy! ===== From README file ===== This is a simple code to help with Dovecot Public Shared Mailbox function. Just configure a public shared mailbox with ACLs, change the configuration file and run this program. How it works: 1) The program connect to the LDAP server and fetch groups from it (with ldap filter) 2) With groups, it fetches the members and owners (or any attribute you want); 3) It will walk into the "shared folder" folder base directory and: 3.1) Rename any directory that was renamed in LDAP (based on entryUUID ldap attribute); 3.2) Create diretories and skeletion (new, cur and tmp) of any group that exists in LDAP; 3.3) Optionaly, remove any "orphan" directory (wihtout a ldap entrey); Example: dn: cn=Everyone,ou=Shared_Mailbox,dc=example,dc=com objectClass: labeledURIObject objectClass: top objectClass: groupOfURLs cn: Everyone labeledURI: ldap:///ou=Users,dc=example,dc=com?uid?one?(objectClass=person) member: uid=user2,ou=users,dc=example,dc=com member: uid=user3,ou=users,dc=example,dc=com member: uid=user1,ou=users,dc=example,dc=com member: uid=user.surname,ou=users,dc=example,dc=com owner: uid=user4,ou=Users,dc=example,dc=com This will create a folder tree like this: /path/toshared/.Everyone /path/toshared/.Everyone/new /path/toshared/.Everyone/cur /path/toshared/.Everyone/tmp With permission file (/path/toshared/.Everyone/dovecot-acl): user=user1 lr ... user=user.surname lr user=user4 lrwstipekxa Hope this helps you! Enjoy. -- Use cópia oculta (BCC ou CCO) e apague dados pessoais no campo da mensagem ao encaminhar qualquer e-mail. http://allan.cassaro.googlepages.com

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Shared folders not listed by IMAP
by Bambero 04 Jul '14

04 Jul '14

Hello I just upgraded my system and there is a problem with shared mailboxes. When I use the doveadm command I can see shared folders: doveadm mailbox list -u 'test(a)mydomain.pl' Drafts Sent Spam Trash Shared Virtuals Virtuals/all Shared/test2(a)mydomain.pl Shared/test2(a)mydomain.pl/Sent INBOX But I can't see them over IMAP protocol. Some config opts: valid_chroot_dirs = /var/mail mail_chroot = /var/mail namespace { type = shared separator = / prefix = Shared/%%u/ location = maildir:/%%u/Maildir:INDEX=~/Maildir/Shared/%%u subscriptions = yes list = yes } plugin { acl = vfile:cache_secs=5 } plugin { acl_shared_dict = file:/var/mail/%i.db } protocol imap { mail_plugins = $mail_plugins imap_quota imap_acl imap_zlib } My version of dovecot is 2.2.10. Regards Bambero

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[Dovecot] dovecot/lmtp munmap()-ing a lot
by Ralf Hildebrandt 04 Jul '14

04 Jul '14

I observed several long running dovecot/lmtp processes hogging the CPU. I then strace'd them (strace -c -p 6375) and found them munmap()-ing a lot: % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 97.18 19.592537 1878 10430 munmap 2.28 0.458984 36 12696 epoll_ctl 0.26 0.052926 10 5288 fdatasync 0.21 0.042472 3 13679 epoll_wait ... snip ... Why would that happen? (dovecot 2.1.17) -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein

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[Dovecot] dovecot: disable ssl compression
by Andreas Schulze 04 Jul '14

04 Jul '14

Hello, Our "it-security" department asked me about Qualys warnings like -> SSL/TLS Compression Algorithm Information Leakage Vulnerability As far as I learned it's compression inside ssl. postfix-2.11 knows 'tls_ssl_options = no_compression' ( see http://www.postfix.org/postconf.5.html#tls_ssl_options ) is the something comparable in dovecot too? Looks like most extensions in ssl exist only to be disabled :-/ Thanks Andreas

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