October 2014 - dovecot

Properly "locking" a useraccount (on a proxy)
by Ralf Hildebrandt 24 Oct '14

24 Oct '14

I'm preparing a migration of several mailboxes to another machine. The different useraccounts are distributed to different backend machines by means of a dovecot LMTP/IMAP/POP proxy. Proxying is working really well (now that the kernel does as it should). But how can I "lock" a user during migration? The plan is: ============ * lock the user * kick the user (doveadm kick) * migrate mailbox (some rsync magic) * unlock the user again But how would I lock the user? What locking needs to … [View More]

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Dovecot Master/Master Replication Problem
by Felix Amler 24 Oct '14

24 Oct '14

Hi, I've set up 2 servers with dovecot 2.2.9 using maildir using structure: /var/maildir/domain/localpart Server A: mx1.xxx.de Server B: mx2.xxx.de Mails are delivered to dovecot only on server A by exim4/dovecot deliver replication to Server B works immediatelly: mark mail as read on server A, mail is marked as read on server B. BUT: when i mark a mail as read on Server B, noting happens. On Server A I get messages like this in dovecot-error.log: 2014-10-22 22:35:05 dsync-server(… [View More]

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Replication .dovecot-sync.lock
by Hans-Werner Paulsen 24 Oct '14

24 Oct '14

Hello all, I have set up two servers with dovecot and replication. The mail location is mail_location = sdbox:/var/spool/mail/%u Everything works fine when I override the homedirectories userdb { driver = passwd override_fields = home=/var/spool/mail/%u } But, when I do not override the homedirectories, replication does not work, and the following error is logged: Oct 24 14:40:45 dsync-local(hans): Error: Couldn't create lock /afs/mpa/home/hans/.dovecot-sync.lock: Permission denied With a … [View More]

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2.2.14 and "Panic: file virtual-sync.c"
by Michael Köhler 24 Oct '14

24 Oct '14

Hi, after upgrading to 2.2.14 (debian wheezy with apt source from rename-it.nl) I´ve got from time to time a panic in virtual plugin. Here are an excerpt from the log file: ---------------------------------- Oct 21 20:44:15 mailserver dovecot: imap(michael@DOMAIN): flag_change: box=Virtual.Ungelesen, uid=1, msgid=<54466F71.3050702(a)makomi.de>, size=1661, flags=(\Seen \Draft \Recent) Oct 21 20:44:15 mailserver dovecot: imap(michael@DOMAIN): Panic: file virtual-sync.c: line 1115 (… [View More]

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dovecot-lda from postfix on remote dovecot server
by nik600 24 Oct '14

24 Oct '14

Dear all i've got many SMTP front-end that filter the mail and do some custom stuff... then when i've decided the final destination i'd like to call /usr/lib/dovecot/dovecot-lda to deliver the mail. Actually i have in master.cf: #####################à dovecot unix - n n - - pipe flags=DRhu user=vmail:vmail null_sender= argv=/usr/lib/dovecot/dovecot-lda -f ${sender} -d ${recipient} #####################à I'd like to know if is possible to use some … [View More]

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Replication only sporadic
by Lucas Rothamel - Eye Catching Webdesign 24 Oct '14

24 Oct '14

Hello dear Dovecot Gurus, I am setting up two servers with Dovecot replication as hot-standby servers for a small high availability cluster, switch-over through DNS-redirect. For testing purposes, both servers are generating a small test mail every few minutes and delivering to the local dovecot each. In my mail client, I added both servers through IMAP to watch how the replication is working. However, I noted that replication is very sporadic: sometimes a new email is received "… [View More]instantaneous" by both servers, then no replication updates are visible for hours, and suddenly all missing mail appear in the other server. Why is this? Can this be changed to be more realtime? Thank you! Lucas doveconf -n: # 2.2.14: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.7 ext4 auth_mechanisms = plain login cram-md5 disable_plaintext_auth = no info_log_path = /var/log/dovecot-info.log log_timestamp = "%Y-%m-%d %H:%M:%S " mail_debug = yes mail_location = maildir:/home/%d/%n/Maildir mail_plugins = " notify replication" mail_privileged_group = mail passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { mail_replica = remote:vmail@... quota = maildir:User quota quota_rule = *:storage=1GB replication_full_sync_interval = 1 hours } protocols = imap pop3 service aggregator { fifo_listener replication-notify-fifo { mode = 0600 user = vmail } unix_listener replication-notify { mode = 0600 user = vmail } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service config { unix_listener config { user = vmail } } service doveadm { user = vmail } service replicator { process_min_avail = 1 } ssl_cert = ... ssl_key = ... userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol imap { mail_plugins = quota imap_quota } protocol pop3 { mail_plugins = quota pop3_uidl_format = %08Xu%08Xv } protocol lda { info_log_path = /var/log/dovecot-lda.log mail_plugins = quota postmaster_address = ... } -- Lucas Rothamel Eye Catching Webdesign info(a)eye-catching-webdesign.de - www.eye-catching-webdesign.de You know, we go to the gym to keep the body fit. Similarly the mind needs some rest. The mind is bombarded with so many impressions. Our mind has been bombarded by impressions the whole time. It needs a different kind of rest other than sleep. And meditation is such a rest. It calms the mind. energizes the spirit and makes the body more strong and vibrant. improves the immune system. The immune cells, the T-cell count go higher through Sudarshan Kriya and meditation. And you feel so nice inside. - Sri Sri Ravi Shankar I love deadlines. I like the whooshing sound they make as they fly by. -- Douglas Adams [View Less]

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Sieve Advice Needed, Please
by Casey Bralla 24 Oct '14

24 Oct '14

Anybody here familiar with the Sieve language? I'm rebuilding my mail server, and I am working with the sieve language to automatically filter spam into a separate account. However, I've hit a snag that I can't get around. BTW, I'm using a clean install of dovecot, postfix, spamassassin on Debian 7.5. I want to do server-side spam filtering, so I've got spamasassin identifying spam, and then have sieve sorting the mail to a special spam folder. I can easily send spam to special folder in … [View More]

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Re: special "what's my ip" pop account
by Joseph Tam 23 Oct '14

23 Oct '14

Steffen Kaiser writes: > let's put aside the question, if this way is sensible or not. [... continuing in nonsensible mode ...] > And if you are at it, maybe a dummy server with a self-made script that > returns "+OK POP3 your IP is ....", then return +FAIL for any further > command. Been there, done that (for a different problem). Not all mail readers will show you banners; to make this really work, you have to implement USER and PASS (accepts anything), STAT and LIST (one … [View More]

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Public root folder is \Noselect
by G H 23 Oct '14

23 Oct '14

I am utilizing a public namespace via http://wiki2.dovecot.org/SharedMailboxes/Public and using sdbox storage format. How can I get rid of the \Noselect flag that is set by default for this folder? IMAP output: b LIST "" "*" * LIST (\HasNoChildren \Sent) "/" Sent * LIST (\HasNoChildren \Trash) "/" Trash * LIST (\Noselect \HasNoChildren) "/" Public * LIST (\HasNoChildren) "/" INBOX If this is not possible, what is the best way to create a sub-folder in here upon system setup (one w/o a \… [View More]

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special "what's my ip" pop account
by A. Schulze 23 Oct '14

23 Oct '14

Hello, I like to enable the allow_nets Feature (http://wiki2.dovecot.org/PasswordDatabase/ExtraFields/AllowNets) for my customers. To help them knowing there own IP I imagine a special mailbox/loginuser at the pop3 server. That user could give a valid pop3 answer from a dummy pop3 server or simply throw a login error with customised answer containing the IP information. Has anybody done something similar or ideas to build such a system? Thanks for ideas Andreas

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