August 2012 - dovecot

[Dovecot] case insensitive acl
by Andre Rodier 19 Aug '12

19 Aug '12

Hello, I have notice that when I use ACL, the name of the user in the dovec-acl-list file is case sensitive. Because I use LDAP, the name of the users is case insensitive. Would it be possible to have an option in Dovecot, to ignore the case of the ACL ? This would be useful with some ACL managers, like roundcube ACL plugin, that uses an LDAP query to autocomplete the user name for the ACL. Kind regards, André

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[Dovecot] Mdbox corruption
by 3.listas＠adminlinux.com.br 19 Aug '12

19 Aug '12

Hi, I have a "ubuntu10.04 + ext4-filesystem + dovecot-2.0.13 +mdbox" configuration in my server. It works fine with ~50k accounts. Recently happened a filesystem corruption in a device of StMailLocation and I fix with fsck.ext4. After this crash, one account began to show access timeout and errors like this on force-resync: # doveadm force-resync -u account INBOX doveadm(account): Warning: mdbox /path-to-mdbox/storage: rebuilding indexes doveadm(account): Error: Corrupted dbox file /path-to-mdbox/storage/m.83 (around offset=16): EOF reading msg header (got 0/30 bytes) doveadm(account): Warning: dbox: Copy of the broken file saved to /path-to-mdbox/storage/m.83.broken doveadm(account): Error: Corrupted dbox file /path-to-mdbox/storage/m.83 (around offset=16): EOF reading msg header (got 0/30 bytes) doveadm(account): Error: mdbox rebuild: Failed to fix file /path-to-mdbox/storage/m.83 doveadm(account): Error: Corrupted dbox file /path-to-mdbox/storage/m.92 (around offset=7): Invalid dbox version ... Should I worry about the m.X.broken files ? How I fix these broken mdboxes ? Thanks. -- Thiago Henrique adminlinux.com.br

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[Dovecot] Permission denied on dovecot.lda-dupes
by ppridt 19 Aug '12

19 Aug '12

Hi, I have converted my Imap Server from Courier to Dovecot in order to use sieve support. Everything works fine with the exception that the sender always gets the vacation msg since there is a permission error on writing of dovecot.lda-dupes. I've tried several version of permissions including 777 to both home and maildir - always the same result. I also googled for hours .. Any help will be appreciated. Paul This is the debug log: ----------------------------------------------------------------------------------------------------- Aug 13 14:51:26 Srv dovecot: deliver(pp): Loading modules from directory: /usr/lib/dovecot/modules/lda Aug 13 14:51:26 Srv dovecot: deliver(pp): Module loaded: /usr/lib/dovecot/modules/lda/lib90_sieve_plugin.so Aug 13 14:51:26 Srv dovecot: deliver(pp): Home dir not found: Aug 13 14:51:26 Srv dovecot: deliver(pp): maildir: data=/Daten/Vmail/pp/Maildir Aug 13 14:51:26 Srv dovecot: deliver(pp): maildir++: root=/Daten/Vmail/pp/Maildir, index=, control=, inbox=/Daten/Vmail/pp/Maildir Aug 13 14:51:26 Srv dovecot: deliver(pp): sieve: using sieve path for user's script: /Daten/Vmail/pp/.dovecot.sieve Aug 13 14:51:26 Srv dovecot: deliver(pp): sieve: opening script /Daten/Vmail/pp/.dovecot.sieve Aug 13 14:51:26 Srv dovecot: deliver(pp): sieve: executing compiled script /Daten/Vmail/pp/.dovecot.sieve Aug 13 14:51:26 Srv dovecot: deliver(pp): Namespace : Using permissions from /Daten/Vmail/pp/Maildir: mode=0700 gid=-1 Aug 13 14:51:26 Srv dovecot: deliver(pp): file_dotlock_create(/.dovecot.lda-dupes) failed: Permission denied ----------------------------------------------------------------------------------------------------- This ist my dovecot.conf: ----------------------------------------------------------------------------------------------------- protocols = imap imaps managesieve mail_debug = yes log_path = info_log_path = disable_plaintext_auth = no # Authentication configuration: mail_location = maildir:/Daten/Vmail/%u/Maildir auth_verbose = yes mail_nfs_storage = no mail_nfs_index = no nfs_check = no lock_method = dotlock mail_uid = vmail mail_gid = vmail auth default { mechanisms = plain login passdb pam { } userdb passwd { args = uid=vmail gid=vmail home=/home/%u mail=maildir:/Daten/Vmail/%u/Maildir } socket listen { master { path = /var/run/dovecot/auth-master mode = 0600 user = vmail } } } protocol lda { postmaster_address = admin(a)ppridt.dnsalias.org mail_plugins = sieve auth_socket_path = /var/run/dovecot/auth-master } protocol managesieve { login_executable = /usr/lib/dovecot/managesieve-login mail_executable = /usr/lib/dovecot/managesieve managesieve_implementation_string = Cyrus timsieved v2.2.13 } plugin { sieve=/Daten/Vmail/%u/.dovecot.sieve sieve_dir=/Daten/Vmail/%u/.sieve } ----------------------------------------------------------------------------------------------------- This is the exim delivery transport: ----------------------------------------------------------------------------------------------------- dovecot_lda: driver = pipe command = /usr/lib/dovecot/deliver message_prefix = message_suffix = log_output delivery_date_add envelope_to_add return_path_add user = vmail group = vmail temp_errors = 64 : 69 : 70: 71 : 72 : 73 : 74 : 75 : 78 ----------------------------------------------------------------------------------------------------- -- View this message in context: http://dovecot.2317879.n4.nabble.com/Permission-denied-on-dovecot-lda-dupes… Sent from the Dovecot mailing list archive at Nabble.com.

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[Dovecot] imap-login process_limit (100) reached, client connections are being dropped
by Voytek Eymont 19 Aug '12

19 Aug '12

noticed this in the log today, after about 11 warning IMAP appears to have not worked, 'service dovecot reload' got it going again question: what to check/alter ? ---------------- # grep process_limit /var/log/maillog Aug 13 15:31:44 geko dovecot: master: Warning: service(imap-login): process_limit (100) reached, client connections are being dropped ''' Aug 13 20:45:35 geko dovecot: master: Warning: service(imap-login): process_limit (100) reached, client connections are being dropped # doveconf -n | grep limit # # dovecot --version 2.1.1 # ps ax | grep imap | wc 109 546 4693 # ps ax | grep imap-login | wc 57 286 2619 # doveadm who | wc 16 122 1531 centos 6, 20 virtual domains, 100 users -- Voytek Eymont

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[Dovecot] dsync \noselect on INBOX.INBOX skips sync of INBOX
by Nikolai Schupbach 19 Aug '12

19 Aug '12

Hi Timo, We have encountered an issue today with a number of migrations. Some customers have mailboxes on the source IMAP server that look like this: 3 LIST "" * * LIST () "." "INBOX" * LIST () "." "INBOX.Statements" * LIST () "." "INBOX.Draft" * LIST () "." "INBOX.Drafts" * LIST () "." "INBOX.Invoices" * LIST (\Noselect) "." "INBOX.INBOX" * LIST () "." "INBOX.Jokes" * LIST () "." "INBOX.Payslips" * LIST () "." "INBOX.Personal" When we run dsync it skips the INBOX presumably because of the Noselect on INBOX.INBOX. and the "imapc_list_prefix = INBOX" setting. Regards, Nikolai.

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[Dovecot] maildir to sdbox offline conversion
by _ET_ 19 Aug '12

19 Aug '12

Hi all. I've just installed dovecot v2.1 in a multihomed, multiinstance setup, It took me two days to convert the old v1.1 configs, now everything works like charm! But. :) I have several maildir mailboxes, I decided to use the sdbox storage type instead. I ran into difficoulties using the dsync util. My virtual users are in an OpenLDAP DB on a differnet machine, and I do not have access to the database (I can authenticate the users from ldap, but cannot change or see anything) So it's not easy to do an "online" conversion and follow the instructions at dsync's wiki. Do you know a way how to simply tell dsync or a similar util the following dsync convert maildir:/data/vmail/domain/user sdbox:/newdata/vmail/domain/user without touching the ldap database, only the files on the disk. I can run this command as root on this mail server, if it is needed, I can run the command for each and every maildir. That's not a problem. any ideas, how this wouléd be the simpliest? -- View this message in context: http://old.nabble.com/maildir-to-sdbox-offline-conversion-tp34274589p342745… Sent from the Dovecot mailing list archive at Nabble.com.

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[Dovecot] Dsync and SIS
by Alex Crow 19 Aug '12

19 Aug '12

Hi all, Just to clarify, if we back up a dovecot 2 server with SIS for attachments and ALT storage by rsyncing it (including the SIS and ALT storage) to a remote server when it's idle (or at least almost entirely so), and run dovecot on that machine, would it seem feasible to restore backups from that server by using dysnc - specifically for the scenario where someone accidentally deletes emails/folders etc.? I've seen queries about SIS before but nothing specifically about this scenario. 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)

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[Dovecot] Listen on multiple ports possible using same protocol?
by Michael Durket 18 Aug '12

18 Aug '12

Is it possible to have multiple Listen directives in a dovecot configuration file for the same protocol? I am running dovecot-1.2.11 and I want to be able to use the "standard port" as well as a test port: protocol imap { listen = *:143 listen = *:10143 ssl_listen = *:993 ssl_listen = *:10993 for example. Or is this more preferably done by pointing dovecot at different configuration files?

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[Dovecot] Expire-tool does not delete duplicate messages (dovecot-1.2.17)
by Oleksii Krykun 17 Aug '12

17 Aug '12

Trying to implement expire plugin. expire-tool works fine. This delete expunged messages but not all of them. I have duplicate messages in appropriate folder. These messages are from expanding postfix aliases (e.g. postmaster@, hostmaster@, abuse@ etc. points to same mailbox and spam often sent to all of them. If duplicate message is received only one entry in dovecot-uidlist is created and only first of duplicates is deleted with expire-tool. Rest of duolicates are not deleted. Any suggestions. Thanks, Kryol

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[Dovecot] dsync backup gets stuck... fails
by Jeff Gustafson 17 Aug '12

17 Aug '12

More dsync issues. We were running 2.1.7 and we updated to 2.1.9. Same problem with both versions. I'm getting an error 75 on about 40 boxes out of 1800. It is the same list of boxes every time we use 'dsync backup' to backup the server. dsync seems to stop communicating to the backup box (over ssh). strace just shows it sitting at a epoll_wait. Once the program quits (times out?), a 'du' shows the destination is smaller (200kbyte in one case). Has anyone else seen an exit code of 75? Nothing in the documentation mentions what exit code 75 could mean. What can I do to help the developers locate the bug? ...Jeff

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