- dovecot - dovecot.org

[Dovecot] Virtual mailboxes show up twice
by Matthijs Kooijman 18 Feb '10

18 Feb '10

Hi all, I've been struggling a bit getting Hastymail webmail to work with my virtual mailboxes. After a while, I discovered that my virtual mailboxes are listed twice: Once with \NoSelect and once without. See the following (partial) LIST reponse: * LIST (\Noselect \HasChildren) "/" "virtual" * LIST (\Noselect \HasNoChildren) "/" "virtual/foo" ... * LIST (\HasNoChildren) "/" "virtual/foo" This makes somewhat sense, since my "virtual" namespace is a subdir of my default namespace: mail_location = Maildir:~/Mail:LAYOUT=fs # Default namespace, uses mail_location above namespace private { prefix = separator = / inbox = yes } # Virtual mailboxes namespace private { prefix = virtual/ separator = / # Store virtual mailbox in a "virtual" subdirectory. We use the fs layout, # so nesting of mailboxes is done using normal filesystem nesting. location = virtual:~/Mail/virtual:LAYOUT=fs } Now, should dovecot handle this configuration transparently by hiding the virtual directory from the default namespace, or is this configuration just not supported and should the virtual directory be outside of ~/Mail? The current wiki documentation on the virtual plugin currently does suggest this configuration, its examples point to ~/Maildir/virtual. Gr. Matthijs

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[Dovecot] configuring overquota message
by Leonardo Rodrigues 18 Feb '10

18 Feb '10

From dovecot 1.2.10 sources i have: src/plugins/quota/quota.c #define DEFAULT_QUOTA_EXCEEDED_MSG \ "Quota exceeded (mailbox for user is full)" struct quota_settings *quota_settings_init(void) { [ .... ] quota_set->quota_exceeded_msg = getenv("QUOTA_EXCEEDED_MESSAGE"); if (quota_set->quota_exceeded_msg == NULL) quota_set->quota_exceeded_msg = DEFAULT_QUOTA_EXCEEDED_MSG; [ .... ] but i havent found, in all the sources, where the QUOTA_EXCEEDED_MESSAGE is feeded by something from dovecot.conf or anywhere else. question is: isnt it possible to configure the quota exceeded message from dovecot.conf ?? Do i really need to rebuild dovecot changing the message on quota.c for acchieving that ? -- Atenciosamente / Sincerily, Leonardo Rodrigues Solutti Tecnologia http://www.solutti.com.br Minha armadilha de SPAM, NÃO mandem email gertrudes(a)solutti.com.br My SPAMTRAP, do not email it

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[Dovecot] Get some headers Variables
by Alex Baule 18 Feb '10

18 Feb '10

Hello Everyone again !! I'm putting more functions in my plugin, and would need to access a value of one variable that is going to put in the header, how can I get this value by dovecot? example, I have the header: X-ThereisMy: yes How can I get this value inside a plugin ? There is something like getHeaderVar("X-ThereisMy") ?

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[Dovecot] How to configure Lazyexpunge plugin?
by CoolAtt NNA 18 Feb '10

18 Feb '10

Hi, I tried the plugin but it is not working. Am using virtual mailboxes. I added the following in dovecot.conf then restarted dovecot. Please guide me to the correct configuration. ############################## namespace private { prefix = separator = / inbox = yes } # namespace for lazy_expunge plugin: namespace private { prefix = .EXPUNGED/ separator = / location = maildir:~/Maildir/expunged } protocol imap { mail_plugins = lazy_expunge } plugin { lazy_expunge = .EXPUNGED/ }################################# _________________________________________________________________ Hotmail: Powerful Free email with security by Microsoft. https://signup.live.com/signup.aspx?id=60969

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[Dovecot] 1.2 , mail_location & mbox_snarf
by Laurent Moineau 18 Feb '10

18 Feb '10

Hello, I'm currently running 1.1.20 and I'm planning to upgrade to 1.2.10 I've read carefully the wiki page "Upgrading Dovecot v1.1 to v1.2" and a few messages concerning mail_location parameter but I still don't know what to change in my configuration in order to keep it working after the upgrade. I'm using mbox format and mbox_snarf plugin. dovecot -n : protocols: imaps pop3 pop3s listen: * ssl_cert_file: /etc/pki/tls/certs/ipop3d.pem ssl_key_file: /etc/pki/tls/certs/ipop3d.pem login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login mail_privileged_group: mail mail_gid: 12 mail_location: mbox:~/mail:INBOX=/var/spool/mail/%u mbox_lazy_writes: no mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugins(default): mbox_snarf mail_plugins(imap): mbox_snarf mail_plugins(pop3): mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 lda: postmaster_address: postmaster(a)example.com auth default: debug: yes passdb: driver: pam userdb: driver: passwd plugin: mbox_snarf: %h/mail/INBOX Any help would be appreciated. Thanx. Laurent Moineau

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[Dovecot] Problem in sharing mailboxes across users
by Rampage 18 Feb '10

18 Feb '10

Hello everyone, I'm trying to configure dovecot to allow users to share their imap folders. I've followed the wiki and i'm near to accomplish my tasks, when i set ACL properly on folders using imap commands the other user can see the folder as shared, but i can't subscribe to it or even access its content using any email client (like thunderbird) couse it looks like the path to the shared folder is not complete. i mean when i go to "manage subscriptions" i can see the shared folder from the other users as "shared/user@domain/sharedfoldername" but since only "sharedfoldername" is present i cant subscribe to it. am i missing somethimg? like do i need to setup a particular directory tree on the filesystem? thnx in advice for your help. Best regards. Francesco.

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[Dovecot] Problem with allow_nets passdb parameter and Postfix
by Неворотин Вадим 18 Feb '10

18 Feb '10

I use Dovecot for SASL authentication from Postfix. In Postfix main.cf I have: smtpd_sasl_type = dovecot It works good, but now I need to allow users to connect by IMAP only from given IP adresses. I've added extra field allow_nets to passdb in Dovecot, and IMAP authentication works fine. But now I can't connect to my SMTP server because when smtpd ask dovecot about user authentification, dovecot always denied it. Even if I try to connect to SMTP from correct IP, listed in allow_nets for user. In dovecot log I have messages about incorrect ip like this: dovecot: 2010-02-15 13:28:51 Info: auth(default): passwd-file(malamut): lookup: user=malamut file=/etc/dovecot/temp.users dovecot: 2010-02-15 13:28:51 Info: auth(default): passdb(malamut): allow_nets check failed: Remote IP not known dovecot: 2010-02-15 13:28:53 Info: auth(default): client out: FAIL 7 user=malamut Problem is clear: smtpd don't send client IP to dovecot authentication socket. But I need to limit the ability of connection to users only from specific IP. Both for SMTP and IMAP. How can I do that? I use dovecot 1.0.15 and Postfix 2.5.5 on Debian Lenny.

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[Dovecot] deliver problem ( Error: file_dotlock_create )
by Frank Bonnet 18 Feb '10

18 Feb '10

Hello all ( Postfix and Dovecot ) Trying to use deliver as mailbox_command with Postfix I get this error each time an email is arriving deliver(xxxxxxxx): Error: file_dotlock_create(/var/mail/xxxxxxxx) failed: Permission denied (euid=3003(xxxxxxxx) egid=3010(smig) missing +w perm: /var/mail) (set mail_privileged_group=mail) Doea this means I have to chmod 777 the /var/mail directory ? Thanks a lot

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[Dovecot] dovecot v1.2.10 + unknown mail_uid parameter
by maximatt 18 Feb '10

18 Feb '10

hi... i upgrading dovecot from v1.0.7 to v1.2.10, so i perform some modifications (http://wiki.dovecot.org/Upgrading/1.1 and http://wiki.dovecot.org/Upgrading/1.2) but i have the following problem when i want to test installation: in dovecot.conf, i set the user mail: mail_uid= 72940 mail_gid= 72941 but when i try to start dovecot i have the following error: # sbin/dovecot Error: Error in configuration file /etc/dovecot/etc/dovecot.conf line 962: Unknown setting: mail_uid Fatal: Invalid configuration in /etc/dovecot/etc/dovecot.conf # sbin/dovecot --version 1.2.10 i try, but i dont know how to fix them :( thanks in advance! :) -- Salu2 ;)

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[Dovecot] quick question
by David Halik 18 Feb '10

18 Feb '10

Timo (and anyone else who feels like chiming in), I was just wondering if you'd be able to tell me if the amount of corruption I see on a daily basis is what you consider "average" for our current setup and traffic. Now that we are no longer experiencing any core dumps with the latest patches since our migration from courier two months ago, I'd like to know what is expected as operational norms. Prior to this we had never used Dovecot, so I have nothing to go on. Our physical setup is 10 Centos 5.4 x86_64 IMAP/POP servers, all with the same NFS backend where the index, control, and Maildir's for the users reside. Accessing this are direct connections from clients, plus multiple squirrelmail webservers, and pine users, all at the same time with layer4 switch connection load balancing. Each server has an average of about 400 connections, for a total of around concurrent 4000 during a normal business day. This is out of a possible user population of about 15,000. All our dovecot servers syslog to one machine, and on average I see about 50-75 instances of file corruption per day. I'm not counting each line, since some instances of corruption generate a log message for each uid that's wrong. This is just me counting "user A was corrupted once at 10:00, user B was corrupted at 10:25" for example. Examples of the corruption are as follows: ########### Corrupted transaction log file ..../dovecot/.INBOX/dovecot.index.log seq 28: Invalid transaction log size (32692 vs 32800): ...../dovecot/.INBOX/dovecot.index.log (sync_offset=32692) Corrupted index cache file ...../dovecot/.Sent Messages/dovecot.index.cache: Corrupted physical size for uid=624: 0 != 53490263 Corrupted transaction log file ..../dovecot/.INBOX/dovecot.index.log seq 66: Unexpected garbage at EOF (sync_offset=21608) Corrupted transaction log file ...../dovecot/.Trash.RFA/dovecot.index.log seq 2: indexid changed 1264098644 -> 1264098664 (sync_offset=0) Corrupted index cache file ...../dovecot/.INBOX/dovecot.index.cache: invalid record size Corrupted index cache file ...../dovecot/.INBOX/dovecot.index.cache: field index too large (33 >= 19) Corrupted transaction log file ..../dovecot/.INBOX/dovecot.index.log seq 40: record size too small (type=0x0, offset=5788, size=0) (sync_offset=5812) ########## These are most of the unique messages I could find, although the majority are the same as the first two I posted. So, my question, is this normal for a setup such as ours? I've been arguing with my boss over this since the switch. My opinion is that with a setup such as ours where a user can be logged in using Thunderbird, Squirrelmail, and their Blackberry all concurrently at the same time, there will always be the occasional index/log corruption. Unfortunately, he is of the opinion that there should rarely be any and there is a design flaw in how Dovecot is designed to work with multiple services with an NFS backend. What has been your experience so far? Thanks, -Dave -- ================================ David Halik System Administrator OIT-CSS Rutgers University dhalik(a)jla.rutgers.edu ================================

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