- dovecot - dovecot.org

[Dovecot] Restoring Mails via DSync
by Asai 29 Mar '13

29 Mar '13

Greetings, Can anyone give me a quick pointer to the right command to use for restoring backups made by dsync? I have our whole mail server backed up with it, but not sure how to restore... Any help would be greatly appreciated. -- --Asai

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[Dovecot] changing flags automatically
by Lutz Preßler 28 Mar '13

28 Mar '13

Hello, (2.2:) there is no doveadm subcommand to change flags of messages, is it? The following should work reliably? # mark messages with subject $SUBJECT in mailbox $MAILBOX of user $USERID as read ( i=2 echo "1 SELECT "$MAILBOX doveadm search -u $USERID mailbox $MAILBOX subject "$SUBJECT" \ | while read g u do echo $i" UID STORE "$u" flags (\Seen)" i=$((i+1)); done echo "0 LOGOUT" ) | /usr/lib/dovecot/imap -u $USERID Greetings, Lutz

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[Dovecot] Gmail like labels, three years later
by Pablo Vieira 27 Mar '13

27 Mar '13

On this post http://www.dovecot.org/list/dovecot/2011-June/059605.html I was asking about the possibility of using arbitrary labels on messages, much like Gmail does. On following replies, I was told about few tricks that might be used, that the IMAP protocol was being considering UTF-8 labels and ways to integrate them into the current system, etc., etc., etc. That sounds nice and all. I'm chiming in three years later only to know if things have changed, both at Dovecot and at the IMAP protocol. Are we closer to have proper labels on IMAP? Labels that help sorting messages in virtual folders where a message can belong in several of them? I consider "label vs folder" a done discussion (since labels can always include folders; a labels system can always be implemented as a folders system, but not viceversa; etc), so what's stopping development in that direction? Have any new energies being devoted to that cause? I just seen Dovecot is number 1 among IMAP servers by a large margin. Congratulations to the devs. Aleve.

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Re: [Dovecot] Migrating password scheme
by Joseph Tam 27 Mar '13

27 Mar '13

Andreas wrote: > > I tried the userdb prefetch / postlogin script method to do some password > > manipulation, but it doesn't appear to work for me. In particular, I > > don't think this method works with > > > > userdb { > > driver = passwd-file > > args = /path/to/passwd-file userdb_pw=%w > > } > > > > From what i understand you have to set a userdb_<something> variable > with passdb and userdb prefetch set. The %w variable seems to be > already empty (again?) at userdb stage. Did all of that. The problem is not prefetching, but that you can't pass arguments via the args=.... Dovecot parses the entire line as a password file pathname. Timo Sirainen definitively writes: > With v2.1 try: > > userdb { > driver = passwd-file > args = /path/to/passwd-file > default_fields = pw=%w > } Thanks, Timo. This works beautifully. Furthermore, it doesn't need the userdb prefetch. Summarizing, the minimal incantation for passing dovecot variables to the post-login script is userdb { driver = passwd-file args = /var/dovecot/test/passwd default_fields = pw=%w } service imap { executable = imap postlogin ... } service pop3 { executable = imap postlogin ... } service postlogin { executable = script-login /path/to/postlogin-exec # Careful -- defaults to root user = $default_internal_user unix_listener postlogin { } } I've updated the Dovecot2 wiki, but I am unsure which userdb's "default_fields" applies to, and whether it just applies to postlogin scripts, so I documented it at http://wiki2.dovecot.org/AuthDatabase/PasswdFile Joseph Tam <jtam.home(a)gmail.com>

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[Dovecot] Authentication failure messages in logs
by Nicolas Mora 27 Mar '13

27 Mar '13

Hello, I'm currently running dovecot on a debian stable and every day, I see this message dozens of time in my logs : Mar 16 11:27:57 hector dovecot-auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=nicolas rhost=72.53.129.223 user=nicolas on the list archive, this message for example tells to comment out the pam section. http://www.dovecot.org/list/dovecot/2008-July/031966.html Except that my authentication needs pam... Is there any way to solve this without migrating to virtual users ? Thanks in advance Here is my dovecot -n output : # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 3.2.13-grsec-xxxx-grs-ipv6-64 x86_64 Debian 6.0.7 protocols: imap imaps managesieve sieve ssl_listen(default): *:993 ssl_listen(imap): *:993 ssl_listen(managesieve): ssl_cert_file: /etc/ssl/localcerts/dovecot.pem ssl_key_file: /etc/ssl/localcerts/dovecot.key login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(managesieve): /usr/lib/dovecot/managesieve-login mail_privileged_group: mail mail_location: maildir:~/Maildir mbox_write_locks: fcntl dotlock mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(managesieve): /usr/lib/dovecot/managesieve mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(managesieve): /usr/lib/dovecot/modules/managesieve lda: postmaster_address: postmaster(a)babelouest.org mail_plugins: sieve mail_plugin_dir: /usr/lib/dovecot/modules/lda sieve_dir: ~/ auth default: mechanisms: plain login passdb: driver: pam args: dovecot userdb: driver: passwd socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 plugin: sieve: ~/.dovecot.sieve

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[Dovecot] Error Building v2.2
by Nikolaos Milas 27 Mar '13

27 Mar '13

Hello, I am trying to build Dovecot v2.2 (nightly version 20130326, which I have renamed and use as 2.2.0) on CentOS 6.4 x86_64 and I am having a problem: ... + ./configure --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux-gnu --target=x86_64-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info 'INSTALL_DATA=install -c -p -m644' --docdir=/usr/share/doc/dovecot-2.2.0 --disable-static --disable-rpath --with-nss --with-shadow --with-pam --with-gssapi=plugin --with-ldap=plugin --with-sql=plugin --with-pgsql --with-mysql --with-sqlite --with-zlib --with-libcap --with-ssl=openssl --with-ssldir=/etc/pki/dovecot --with-solr --with-docs --with-bzlib configure: error: unrecognized option: --docdir=/usr/share/doc/dovecot-2.2.0 I found here: http://www.dovecot.org/list/dovecot/2011-April/058420.html that --docdir option exists when autoconf version > 2.60. Yet: $ rpm -qa | grep autoconf autoconf-2.63-5.1.el6.noarch So, what may be wrong? Please help. Thanks, Nick

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[Dovecot] Problem when indexing maildir with a large number of folders
by Andre Rodier 27 Mar '13

27 Mar '13

Hello everybody, As part of a migration from exchange 2003 to dovecot, I have converted a lot of PST files for a user. I am importing his PST files in a maildir folder called 'Archives'. Actually, I reached about 770 'Archives' folders, and the total length of their names is about 59k characters. Thanks to wc! I am using Maildir++ I can run the doveadm index command on the private namespace, however, I am not able to do this on the virtual folders. Here the error I have: > doveadm(john smith): Panic: file mail-index-transaction-update.c: line 875 (mail_index_update_header_ext): assertion failed: (offset <= (uint16_t)-1 && size > <= (uint16_t)-1 && offset + size <= (uint16_t)-1) > doveadm(gareth walters): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x4414a) [0x7f9b7100714a] -> > /usr/lib/dovecot/libdovecot.so.0(default_fatal_handler+0x2a) [0x7f9b7100720a] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f9b70fde82a] -> > /usr/lib/dovecot/libdovecot-storage.so.0(+0xb8079) [0x7f9b7130a079] -> /usr/lib/dovecot/modules/lib20_virtual_plugin.so(virtual_storage_sync_init+0x788) > [0x7f9b6f1775a8] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x33) [0x7f9b712cf3e3] -> > /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync+0x27) [0x7f9b712cf507] -> doveadm(+0x16618) [0x7f9b719c8618] -> doveadm(+0x13346) [0x7f9b719c5346] -> > doveadm(+0x13e21) [0x7f9b719c5e21] -> doveadm(doveadm_mail_try_run+0x161) [0x7f9b719c62e1] -> doveadm(main+0x3d1) [0x7f9b719c4ef1] -> > /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7f9b70c57ead] -> doveadm(+0x13125) [0x7f9b719c5125] > Aborted I can see I have reached a limit, but is there any configuration value I can use to increase this limit, please? Kind regards, André.

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[Dovecot] Implementing Single instance attachment storage (SIS) with sdbox
by megodin＠inboxalias.com 27 Mar '13

27 Mar '13

Hi there, as I want to implement data dedupliction on my dovecot system (eg. a users sends the same attchment to 5 different users on my system so I only have to store the attachment one time and set pointers to the file) , I found out it could be possible with Single instance attachment storage (SIS), so I read several pages about SIS as it was quoted here (http://wiki2.dovecot.org/MailboxFormat/dbox) > dbox storage is extensible. Single instance attachment storage was already implemented as such extension. But I did not found any further intructions in Dovecot Wiki how to implement it - however, on Dovecots blog there was an older article from Timo which gave some indication how to get it work (http://blog.dovecot.org/2010/07/single-instance-attachment-storage.html) > mail_location = dbox:~/dbox:ATTACHMENTS=/attachments/$/$ But when I change my configuration according to this (I use sdbox as mail format), I just get a "Unknown setting: ATTACHMENTS" in my mail.err log. Can anybody give me a clue how to get this working? Thanks in advance! Megodin --- Alle PostfÃ¤cher an einem Ort. Jetzt wechseln und E-Mail-Adresse mitnehmen! http://email.freenet.de/produkte/basic/index.html _________________________________________________________________ Send and receive anonymous emails to your inbox with InboxAlias. http://www.inboxalias.com

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[Dovecot] Sieve Vacation for redirected email
by Dave Gattis 27 Mar '13

27 Mar '13

I posted this elsewhere, but under an old post. I apologize for the repeated question. Hello Dovecot Users, Dovecot 2.1.7 Our emails are redirected from the home office causing all vacation responses to fail with, "discarding vacation response for implicitly delivered message; no known (envelope) recipient address found in message headers". I need to use the Sieve Vacation option but cannot figure out how to get it working for us. If I send to the local address, it works fine. If I send to the redirect address, it fails with above error. Unfortunately, all of our emails are redirects from a single domain. There's got to be some way to make it work. Any help would be greatly appreciated, Dave Stephan Bosch-2 wrote > + Vacation extension: finally added support for using the original > recipient in vacation address check. It is also possible to disable > the recipient address check entirely. Check doc/vacation.txt for > configuration information.

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[Dovecot] Importing emails from PST Archives
by Andre Rodier 27 Mar '13

27 Mar '13

Hello everyone, I am currently migrating a small company from exchange 2003 to Dovecot. So far, the most painful process has been the PST archives. (Except the inconditionals of Outlook) I have been able to create the directory structure using the last version of readpst, with the -r flag. But once this done, I have not been able to find one tool that worked correctly. Maybe the configuration I have is complex. The perl script to transform mbox files into maildirs in the dovecot distribution is old, and crashed many times in the middle of the process. I had a look to the script, and gave up trying to fix it. I found a python script that was supposed to crawl this folder structure, and to replicate it using IMAP commands, but it crashed as well, and restarting the process would import twice the same messages. The script is here: http://costela.net/2011/06/importing-an-outlook-pst-into-imap/ I found another python script that was working better, and seemed to be well written, but with one mbox to one IMAP folder only. It can be found here: http://imap-upload.svn.sourceforge.net/viewvc/imap-upload/trunk/ I have modified, and I have added some minor fixes: - Recursively traverse a folder structure, and replicate it using IMAP commands on the server. - Properly manage folder names with special characters. (dovecot can manage these characters using the listescape plugin). - Avoid taking all the resources of the server (A quirty hack that can change). I am not an expert in Python, and the script has been quickly writter to fit my needs. However I think it can be modified easily to any configuration. In the future, maybe this script can use the libpst python bindings to import the emails directly. The last version of the script, modified is here: https://github.com/arodier/EmailTools/tree/master/Migration. Do not hesitate to help me, to make the script as generic as possible, particularly if you are a python expert. I post this on this list, because I think you maybe interested if you are in the same case as me. The license is not specified, but I will probably use GPLv3. Regards, André

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