May 2012 - dovecot - dovecot.org

[Dovecot] dovecot sasl with postfix: SASL LOGIN authentication failed: Connection lost to authentication server
by David Jonas 04 May '12

04 May '12

When using dovecot (2.1.5) sasl with postfix (2.8.4) behind nginx smtp proxy I am seeing a ton of errors of the form: postfix/smtpd[7731]: warning: unknown[192.168.0.6]: SASL LOGIN authentication failed: Connection lost to authentication server Nothing is printed by dovecot in the logs regarding the error. It seems that dovecot just hung up on postfix. (side note: no, can't use xclient in nginx/postfix. But perhaps soon.) After much digging I thought I solved it with: login_trusted_networks = 172.20.20.0/24 mail_max_userip_connections = 0 This seems safe enough because dovecot is only providing sasl to postfix, no connections to the outside world. But the error is still happening. # doveadm penalty IP penalty last_penalty last_update 172.20.20.61 1 2012-04-30 19:15:56 19:15:56 strace on the anvil process shows a lot of GETs and INCs: 18:54:06 read(14, "PENALTY-GET\t172.20.20.61\n", 397) = 25 <0.000016> 18:54:06 write(14, "1 1335837245\n", 13) = 13 <0.000029> A two minute survey showed penalty distribution: 0: 60% 1: 15% 2: 18% 3: 8% Finally I just disabled penalties with the info from http://www.dovecot.org/list/dovecot/2011-December/062631.html and that seemed to do it. Is there a better way? This took me a long time to run down so I tried to make this message detailed enough that others with similar problems will stumble upon it.

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[Dovecot] doveadm mailbox: rc=0 on error
by Andreas Schulze 04 May '12

04 May '12

Hi all, I use "doveadm mailbox mutf7 -7 $folder" to convert imap foldernames to UTF-8. If $foldername is not mUTF-7 encoded, doveadm returns "doveadm(root): Error: Mailbox name not valid mUTF-7: $folder" This errormessage is printed on stderr but the returncode of doveadm is zero. I tested with dovecot-2.0.* and dovecot-2.1.* # all right: $ doveadm mailbox mutf7 -7 'gr&APw-n'; echo $? grün 0 # also all right, no mUTF-7 encoded folder: $ doveadm mailbox mutf7 -7 'gruen'; echo $? gruen 0 # wrong $ doveadm mailbox mutf7 -7 'grün'; echo $? doveadm(root): Error: Mailbox name not valid mUTF-7: grün 0 Would be nice if doveadm exit with an errorcode != 0 in that case. Andreas -- Andreas Schulze Internetdienste | P252 DATEV eG 90329 Nürnberg | Telefon +49 911 319-0 | Telefax +49 911 319-3196 E-Mail info @datev.de | Internet www.datev.de Sitz: 90429 Nürnberg, Paumgartnerstr. 6-14 | Registergericht Nürnberg, GenReg Nr.70 Vorstand Prof. Dieter Kempf (Vorsitzender) Dipl.-Kfm. Wolfgang Stegmann (stellvertretender Vorsitzender) Dipl.-Kfm. Michael Leistenschneider Dipl.-Kfm. Dr. Robert Mayr Jörg Rabe v. Pappenheim Dipl.-Vw. Eckhard Schwarzer Vorsitzender des Aufsichtsrates: Reinhard Verholen

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[Dovecot] Strange behaviour for sieve_before
by Simone Caruso 04 May '12

04 May '12

Hi all, i moved from dovecot 2.0.15 (lda) to 2.1.5 with lmtp transport, all works well with the same configuration directives. But sieve_before stopped working with mail_debug=no. The weird thing is that, with mail_debug=yes the sieve_before script starts working. Any idea? Thanks (my conf attacched, for the new install i used prebuild packages) -- Simone Caruso IT Consultant +39 349 65 90 805

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[Dovecot] non-ascii password
by Carlos Alberto 04 May '12

04 May '12

Hi guys, sorry for bother i'am looking how to fix the passwords with non-ascii characters (like ñ). i'am using dovecot version 1.2.15 on debian. Thanks in advance.

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[Dovecot] Sieve script does not run in dovecot 2.0 on squeeze
by Victor Oñate 03 May '12

03 May '12

Hi, I want to use Sieve filtering with my Dovecot 2.0.20 installation on Debian squeeze. ManageSieve works fine so far, I can edit and activate/deactive scripts (using Thunderbird + Plugin) and they show up in the filesystem where I expect them to be, see below. # ls -la /home/k2009999/ total 16 drwxr-xr-x 4 k2009999 mail 4096 Apr 30 10:46 . drwxr-xr-x 4 root root 4096 Apr 24 17:04 .. drwx------ 7 k2009999 Domain Users 4096 Apr 30 10:56 Maildir lrwxrwxrwx 1 k2009999 Domain Users 21 Apr 30 10:46 currently-active-script.sieve -> sieve/outoffice.sieve drwxr-xr-x 3 k2009999 mail 4096 May 2 16:44 sieve ls -la /home/k2009999/sieve/ total 16 drwxr-xr-x 3 k2009999 mail 4096 May 2 16:44 . drwxr-xr-x 4 k2009999 mail 4096 Apr 30 10:46 .. -rw-r--r-- 1 k2009999 mail 36 Apr 26 17:21 outoffice.sieve drwxr-xr-x 2 k2009999 Domain Users 4096 May 2 16:44 tmp #less outoffice.sieve redirect "user(a)dominio.uk"; In dovecot.conf I have mail_location = maildir:~/Maildir plugin { quota = dirsize sieve=~/currently-active-script.sieve sieve_dir=~/sieve sieve_storage=~/sieve } protocols = imap sieve protocol sieve { managesieve_logout_format = bytes ( in=%i : out=%o ) } service managesieve-login { user = dovecot inet_listener sieve { port = 4190 } process_limit = 2000 } userdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } In postfix I have home_mailbox = Maildir/ the problem is that the script does not run and so the mail is delivered the initial recipient. I use LDAP to delivery the mail. any idea. Thank you. Th. Victor Oñate

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[Dovecot] Dovecot for POP3S proxying
by Gilles Albusac 03 May '12

03 May '12

I would like to configure Dovecot for POP3S proxying all users from the Internet to the internal Exchange Mail Server. Dovecot proxy have to authenticate the POP3S user (with ldap database) and redirect to exchange server. Is it possible ? Could you give me a dovecot.conf example file ? Regards

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[Dovecot] Log messages
by Stephen Davies 03 May '12

03 May '12

Hello. I have been on leave for several weeks and have managed to lose all emails received since December due to a server crash. I asked about log synch error back in March and have (repeatedly) deleted all .imap files but the errors continue. # 2.1.1: /usr/etc/dovecot/dovecot.conf # OS: Linux 2.6.33.5-desktop-2mnb i686 Mandriva Linux 2010.2 mail_access_groups = mail mail_location = mbox:~/Mail:INBOX=/var/spool/mail/%u managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap pop3 lmtp sieve sieve ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } protocol lmtp { mail_plugins = sieve } protocol lda { mail_plugins = sieve } Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=929952 for /home/john/Mail/INBOX/.imap/Archive/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=548744 for /home/john/Mail/INBOX/.imap/Davies/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=541084 for /home/john/Mail/INBOX/.imap/FieldNET/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=539768 for /home/john/Mail/INBOX/.imap/Invoices Out/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=492896 for /home/john/Mail/INBOX/.imap/Lawrence and Hanson/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=530300 for /home/john/Mail/INBOX/.imap/Logger Call/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=524384 for /home/john/Mail/INBOX/.imap/Logger Reset/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=500144 for /home/john/Mail/INBOX/.imap/River Murray/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=532680 for /home/john/Mail/INBOX/.imap/SMS Emails/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=515436 for /home/john/Mail/INBOX/.imap/Soil Moisture Alert/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=578508 for /home/john/Mail/INBOX/.imap/Water Management Alarm/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=648164 for /home/john/Mail/INBOX/.imap/Water Usage/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=492876 for /home/john/Mail/INBOX/.imap/Weather Summaries/dovecot.index: Extension header update points outside header size Apr 30 09:00:12 server dovecot: imap(john): Error: Log synchronization error at seq=2,offset=495744 for /home/john/Mail/INBOX/.imap/Zerna/dovecot.index: Extension header update points outside header size Apr 30 09:00:38 server dovecot: lda(john): Error: Log synchronization error at seq=2,offset=578596 for /home/john/Mail/INBOX/.imap/Water Management Alarm/dovecot.index: Extension header update points outside header size Apr 30 09:00:38 server dovecot: lda(john): Error: Log synchronization error at seq=2,offset=578684 for /home/john/Mail/INBOX/.imap/Water Management Alarm/dovecot.index: Extension header update points outside header size Apr 30 09:00:38 server dovecot: lda(john): Error: Log synchronization error at seq=2,offset=578880 for /home/john/Mail/INBOX/.imap/Water Management Alarm/dovecot.index: Extension header update points outside header size At about the same time, I asked about fsck warnings. These also continue despite deleting all .,imap files. Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Archive/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Davies/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/FieldNET/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Invoices Out/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Lawrence and Hanson/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Logger Call/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Logger Reset/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/River Murray/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/SMS Emails/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Soil Moisture Alert/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Water Management Alarm/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Water Usage/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Weather Summaries/dovecot.index Apr 30 09:00:12 server dovecot: imap(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Zerna/dovecot.index Apr 30 09:00:38 server dovecot: lda(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Water Management Alarm/dovecot.index Apr 30 09:00:38 server dovecot: lda(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Water Management Alarm/dovecot.index Apr 30 09:00:38 server dovecot: lda(john): Warning: fscking index file /home/john/Mail/INBOX/.imap/Water Management Alarm/dovecot.index The file system involved is local and sieve rules are now working. Cheers and thanks, Stephn -- ============================================================================= Stephen Davies Consulting P/L Voice: 08-8177 1595 Adelaide, South Australia. Fax : 08-8177 0133 Records & Collections Management. Mobile:040 304 0583

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[Dovecot] mdbox corruption
by Daniel L. Miller 02 May '12

02 May '12

I have isolated the corruption in a mailbox to 4 mdbox files. Two of these (smaller) files cause the force-resync to report a breakage and save the file as m.XX.broken. The other two (larger) files cause a crash. Is there a way I can fix these files and recover the mails? -- Daniel

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[Dovecot] dovecot, ldap and multiple auth_bind_userdn
by Cédric Jeanneret 01 May '12

01 May '12

Hello List! I'm having some troubles for a client of mine: he has two ldap branches which may contain valid users for imap login... For now, dovecot is configured so that it uses the auth_bind: ======== uris = ldap://localhost:389/ auth_bind = yes auth_bind_userdn = uid=%u,ou=user,dc=org ldap_version = 3 base = dc=artemis user_attrs = user_global_uid = 8 user_global_gid = 8 pass_attrs = uid=user ## other options user_filter = (uid=%u) pass_filter = (uid=%u) default_pass_scheme = CRYPT ======== Unfortunately, I cannot manage to tell him "hey guy, uses those two branches": uid=%u,ou=user,dc=org and uid=%u,ou=external,dc=org Is there a special way to do that ? Is it even possible ? I cannot modify the ldap tree, so this option is out, unfortunately :(. My dovecot version: dovecot --version 1.2.15 Thanks in advance for your answers. Cheers, C.

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[Dovecot] question dovecot Inheritance global acl vs userfolder acl
by Robert Schetterer 01 May '12

01 May '12

Hi Timo my tests resulted in inheritance is given if a userfolder has set some acl to its new created subfolder , which is nice if some userfolder has its acl from global acl there is no inheritance to its new created subfolders, that subfolders will always created with full owner rights i am not really sure if its a good idea to have inheritance from global acl and if its hackabel what is your idea to this ? -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

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