- dovecot - dovecot.org

Re: [Dovecot] Alerts when process limits are met
by David Anderson 01 Sep '12

01 Sep '12

Hi, Thanks. I used monit, and will code something up of that kind - but I was curious as to whether dovecot had something built in; external monitoring is a somewhat blunter tool, as you don't get to know exactly why there was a problem unless you also parse the logs. Tricky to investigate this kind of issue - it has only happened once, and I had a few hundred people trying to log in, so no time to start debugging! But if it recurs I'll be back to ask for guidance... Many thanks, David -- WordShell - WordPress fast from the CLI - www.wordshell.net On 01/09/12 12:15, Noel Butler wrote: > Seen similar, we use mon¹ for network monitoring, our mon pop3 script > is modified to not only connect, but login, if it cant the trigger > becomes active and if fails again at next check, it alerts engineers > by sms. > > Though, I would investigate the core issue, Timo "apparently" fixed > that hung session stuff in 2.0, it was common in 0.x and 1.x series. > > Cheers > > 1: ( <http://sourceforge.net/projects/mon/files/mon/> > http://sourceforge.net/projects/mon/files/mon/ ) > > >

1 0

[Dovecot] Testing process?
by leam hall 01 Sep '12

01 Sep '12

Morning all! Total newbie question. I'm learning Dovecot and will be plugging in a few things and testing it end to end. What test structures or tools are available for making sure the install is correct and the parameters are taken? Thanks! Leam -- Mind on a Mission <http://leamhall.blogspot.com/>

3 3

[Dovecot] Dovecot generate file when over quota detected
by Dominic Malolepszy 31 Aug '12

31 Aug '12

Hi, I am curious if Dovecot can add an empty file into a Maildir folder as soon as a mailbox has exceeded 100% capacity, and later when it detects the quota has fallen below 100% unlink the file. The idea is the Dovecot LDA would deliver the message and if this caused the mailbox to reach 100%+, add a file into the maibox say "username/Maildir/overquota". Interactions via Dovecot IMAP/POP3 that lower the mailbox usage, for example the user popping, or deleting mail from the mailbox would trigger Dovecot to unlink the file. This means that an MTA can efficiently check for the existence of this 'overquota' file and return a "user(a)domain.com Mailbox full" TEMPFAIL error early during the SMTP transaction prior to accepting any data. Dominic

2 3

[Dovecot] LDAP auth and multiple attributes to construct the mail path
by Anatoly Ivanov 31 Aug '12

31 Aug '12

Hello, So I am trying to construct mail path for my LDAP user lookups, and i need to use two attributes instead of one. For examle, my LDAP directory has two attributes: departmentAttr and userIDAttr, and I want the maildir to reside in /home/${departmentAttr}/${userIDAttr} Unfortunately, I cannot seem to find a way to configure dovecot this way. Right now, I have something like user_attrs = departmentAttr=mail=maildir:/home/%$/%u But %u is the username (which in my environment can easily change, so I cannot use this for maildir location). Any ideas on how to achieve that? So far I have just one brute-force solution - to create an attribute MailDirAttr, and populate it with concatenation of departmentAttr+'/'+userIDAttr by means of a scheduled task. This sounds like unnecessary information duplication, which is usually a very bad practice. So, again - any ideas? Thank you, Anatoly.

2 1

[Dovecot] segfault in mail_user_get_home()
by Lazy 31 Aug '12

31 Aug '12

gdb ./src/imap/.libs/imap Reading symbols from /usr/src/dovecot-2.1.9/src/imap/.libs/imap...done. (gdb) run Starting program: /usr/src/dovecot-2.1.9/src/imap/.libs/imap warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7ffff7ffa000 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". process 1104 is executing new program: /usr/local/dovecot/bin/doveconf [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". process 1104 is executing new program: /usr/src/dovecot-2.1.9/src/imap/.libs/imap [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Program received signal SIGSEGV, Segmentation fault. 0x00007ffff7b2a0ff in mail_user_get_home (user=0x0, home_r=0x7fffffffe308) at mail-user.c:310 310 if (user->home_looked_up) { (gdb) bt #0 0x00007ffff7b2a0ff in mail_user_get_home (user=0x0, home_r=0x7fffffffe308) at mail-user.c:310 #1 0x00007ffff7ad172e in mdbox_storage_find_root_dir (ns=0x648610) at mdbox-storage.c:90 #2 0x00007ffff7ad180c in mdbox_storage_autodetect (ns=0x648610, set=0x7fffffffe4d0) at mdbox-storage.c:113 #3 0x00007ffff7b2345d in mail_storage_autodetect (ns=0x648610, set=0x7fffffffe4d0) at mail-storage.c:105 #4 0x00007ffff7b2369d in mail_storage_get_class (ns=0x648610, driver=0x0, list_set=0x7fffffffe4d0, flags=0, error_r=0x7fffffffe5b8) at mail-storage.c:180 #5 0x00007ffff7b23c90 in mail_storage_create (ns=0x648610, driver=0x0, flags=0, error_r=0x7fffffffe5b8) at mail-storage.c:342 #6 0x00007ffff7b1c62a in namespace_add (user=0x649be0, ns_set=0x64a8c8, unexpanded_ns_set=0x64a1c0, mail_set=0x64a440, ns_p=0x645380, error_r=0x7fffffffe6e8) at mail-namespace.c:126 #7 0x00007ffff7b1ccbb in mail_namespaces_init (user=0x649be0, error_r=0x7fffffffe6e8) at mail-namespace.c:289 #8 0x00007ffff7b34a64 in mail_storage_service_init_post (ctx=0x633460, user=0x633e08, priv=0x7fffffffe6f0, mail_user_r=0x7fffffffe7b8, error_r=0x7fffffffe6e8) at mail-storage-service.c:641 #9 0x00007ffff7b35dd6 in mail_storage_service_next (ctx=0x633460, user=0x633e08, mail_user_r=0x7fffffffe7b8) at mail-storage-service.c:1114 #10 0x00007ffff7b35efa in mail_storage_service_lookup_next (ctx=0x633460, input=0x7fffffffe810, user_r=0x7fffffffe7c0, mail_user_r=0x7fffffffe7b8, error_r=0x7fffffffe808) at mail-storage-service.c:1149 #11 0x000000000041f61c in client_create_from_input (input=0x7fffffffe810, login_client=0x7fffffffe880, fd_in=0, fd_out=1, input_buf=0x0, error_r=0x7fffffffe808) at main.c:202 #12 0x000000000041f859 in main_stdio_run (username=0x0) at main.c:247 #13 0x000000000041fd0a in main (argc=1, argv=0x631370) at main.c:381 /usr/local/dovecot/bin/doveconf -n # 2.1.9: /usr/local/dovecot/etc/dovecot/dovecot.conf # OS: Linux 2.6.32 x86_64 Debian wheezy/sid namespace test { list = children location = maildir:/root/test prefix = test. subscriptions = yes type = shared } namespace inbox { inbox = yes list = 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 = subscriptions = yes } passdb { driver = pam } ssl = no userdb { driver = passwd } without type = shared there is no segfault, I understand this config might not work (invoking imap directly) but it should't segfault. Regards, Michal Grzedzicki

2 2

[Dovecot] Variables in LDAP userdb
by Alex Crow 31 Aug '12

31 Aug '12

Hi Timo, Is it OK to have dovecot variables in entries in an LDAP userdb? Say I wanted to set the mail userdb parameter to override mail_location, would it work by having an entry in LDAP (eg for mailMessageStore attrib) like: mdbox:/home/email/%d/%n:INDEX=/home/indexes/%d/%1n/%n:ALT=/home/email_archive/%d/%1n/%n and those % variables will still be expanded by dovecot? Or would I be required to replace them in the LDAP directory with their actual values? Cheers Alex -- This message is intended only for the addressee and may contain confidential information. Unless you are that person, you may not disclose its contents or use it in any way and are requested to delete the message along with any attachments and notify us immediately. "Transact" is operated by Integrated Financial Arrangements plc Domain House, 5-7 Singer Street, London EC2A 4BQ Tel: (020) 7608 4900 Fax: (020) 7608 5300 (Registered office: as above; Registered in England and Wales under number: 3727592) Authorised and regulated by the Financial Services Authority (entered on the FSA Register; number: 190856)

2 3

[Dovecot] Merge multiple doveadm commands
by Ralf Hildebrandt 31 Aug '12

31 Aug '12

Can I merge these three commands into one? doveadm expunge -u %s mailbox \"INBOX.Deleted Messages\" NOT NEW doveadm expunge -u %s mailbox INBOX.Trash NOT NEW doveadm expunge -u %s mailbox INBOX deleted -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt(a)charite.de | http://www.charite.de

2 1

[Dovecot] doveadm commands returning 139 at director servers
by Angel L. Mateo 31 Aug '12

31 Aug '12

Hello, I have configured director in front of dovecot imap/pop/lmtp servers. When I need to manipulate a user mailbox, I use doveadm commands at director server's, with -S option. But some commands return exit code 139 when command returns more than 40 entries (I think). For example, the command: sudo doveadm fetch -u amateo hdr mailbox Trash HEADER Subject "nyctalus11/" executed at the backend server returns 952 mails, but executed at director server with -S option, returns only 40 mails and exit code 139. I'm using dovecot 2.1.5 and I attached doveconf -n at director and backend servers. -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 868888337

1 1

[Dovecot] deliver doesn't update cache index with mbox
by Gerhard Wiesinger 30 Aug '12

30 Aug '12

Hello Timo, I'm having a problem with mbox that opening folder is slow when new mails are delivered to a folder. I'm delivering through the deliver program. Deliver updates index files but IHMO not completely correct. Therefore I compared index files before and after: 1.) Just delivered 2.) After accessing through imap via Thunderbird diff looks like (stripped down to the relevant things): INDEX: -first recent uid ......... = 25847 +first recent uid ......... = 25848 -log file tail offset ..... = 16468 -log file head offset ..... = 16468 +log file tail offset ..... = 16828 +log file head offset ..... = 16828 - - sync_mtime . = 2012-08-30 19:38:05 + - sync_mtime . = 2012-08-30 20:09:23 - - dirty_flag . = 1 + - dirty_flag . = 0 - - highest_modseq = 11162 + - highest_modseq = 11163 - - log_offset ... = 16468 + - log_offset ... = 16828 CACHE: -used_file_size ....... = 6385696 +used_file_size ....... = 6392132 RECORD: seq=25663, uid=25835, flags=0x00 - - ext 0 keywords : (0000) - - ext 1 modseq : 11156 (942b000000000000) + - ext 0 keywords : (0100) + - ext 1 modseq : 11163 (9b2b000000000000) - ext 2 mbox : 42923286 (16f58e0200000000) - - ext 3 cache : 0 (00000000) + - ext 3 cache : 6385696 (20706100) - ext 4 header-md5: (00000000000000000000000000000000) + - cache offset=6385696 size=488, prev_offset = 0 + - hdr.BCC: + - hdr.CC: + - hdr.CONTENT-TYPE: 18: Content-Type: text/plain; charset=us-ascii + - hdr.DATE: 13: Date: Thu, 30 Aug 2012 19:37:24 +0200 <some other hdr.xxxxx lines removed> + - size.virtual: 1081 (3904000000000000) Same patterns from record: 25664-25675 What does dirty_flag=1 mean? Why are the cache headers missing and not written by deliver? Any ideas? Config is below. Thank you. Ciao, Gerhard # 2.1.9: /etc/dovecot/dovecot.conf # OS: Linux listen = * mail_full_filesystem_access = yes mail_location = mbox:~:INBOX=/var/mail/%u mbox_lazy_writes = no mbox_write_locks = fcntl passdb { driver = pam } postmaster_address = postmaster@domain protocols = imap service auth { unix_listener auth-userdb { group = users mode = 0660 } } service imap-login { inet_listener imap { port = 0 } } service imap { executable = imap postlogin } service postlogin { executable = script-login -d rawlog } ssl_cert = </etc/pki/dovecot/dovecot-extern.pem ssl_key = </etc/pki/dovecot/private/dovecot-extern.pem userdb { driver = passwd } protocol imap { imap_client_workarounds = tb-extra-mailbox-sep } protocol lda { lda_mailbox_autocreate = yes log_timestamp = %Y.%m.%d %H:%M:%S%t mail_debug = yes mail_location = mbox:~/Mail:INBOX=/var/mail/%u }

1 0

[Dovecot] FS Quotas, what am I doing wrong?
by Kelsey Cummings 30 Aug '12

30 Aug '12

I'm not able to get the FS quota module to behave as I expect. Depsite having function fs quotas and dovecot apparently configured to use then, the quotas appear to be empty and/or not configured. Any clues? # quota kgc Disk quotas for user kgc (uid 500): Filesystem blocks quota limit grace files quota limit grace /dev/sda3 1229460 7000000 8000000 103776 5000000 6000000 # doveadm quota get -u kgc Quota name Type Value Limit % User user STORAGE 0 - 0 User user MESSAGE 0 - 0 # telnet 0 143 ... A003 GETQUOTAROOT INBOX <- Not sure this is correct A003 OK No quota. imap-login: Login: user=<kgc>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=6048, secured, session=<1CGqXm7IhwB/AAAB> imap: Debug: Loading modules from directory: /usr/lib64/dovecot imap: Debug: Module loaded: /usr/lib64/dovecot/lib10_quota_plugin.so imap: Debug: Module loaded: /usr/lib64/dovecot/lib11_imap_quota_plugin.so imap(kgc): Debug: Effective uid=500, gid=501, home=/home/kgc imap(kgc): Debug: Quota root: name=User user backend=fs args=inode_per_mail:noenforcing imap(kgc): Debug: maildir++: root=/home/kgc/Maildir, index=, control=, inbox=/home/kgc/Maildir, alt= imap(kgc): Debug: fs quota add mailbox dir = /home/kgc/Maildir imap(kgc): Debug: fs quota block device = /dev/sda3 imap(kgc): Debug: fs quota mount point = / imap(kgc): Debug: fs quota mount type = ext4 # 2.1.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-279.5.1.el6.x86_64 x86_64 Scientific Linux release 6.0 (Carbon) mail_debug = yes mail_location = maildir:~/Maildir mail_plugins = quota mbox_write_locks = fcntl passdb { driver = pam } plugin { quota = fs:User user:inode_per_mail:noenforcing } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } protocol imap { mail_plugins = quota imap_quota } -- Kelsey Cummings - kgc(a)corp.sonic.net sonic.net, inc. System Architect 2260 Apollo Way 707.522.1000 Santa Rosa, CA 95407

1 0