- dovecot - dovecot.org

[Dovecot] Lost in configuration
by forumer＠smartmobili.com 12 Feb '12

12 Feb '12

Hi, I am trying to configure dovecot/postfix with virtual users and sasl auth but there are so many tutorials with mistakes and subtle differences that at the end I am lost. So I am running Ubuntu server 11.04 (natty) and when I installed my server I had followed the following guide http://workaround.org/ispmail/etch Then I have migrated to dovecot 2.1 and now I am trying to allow authenticated user to use my smtp server because for the moment I get : Relay access denied Here is my configuration (first is file hierarchy followed by file contents) and I would like to know what I need to do to allow authenticated user send email. In this tutorial http://library.linode.com/email/postfix/dovecot-mysql-ubuntu-10.04-lucid#sp… it seems I have to add some configuration lines inside /etc/pam.d/smtp and add database configuration inside /etc/postfix/sasl/smtpd.conf. But what I find weird is the fact I have to configure some sql queries from smtpd.conf while normally dovecot has already all the information to do this kind of query. So before to keep on modifying my config I would like to be sure I am following the right way. Thanks ########################### /etc/postfix ########################### drwxr-xr-x 3 root root 4096 2012-02-12 13:33 ./ drwxr-xr-x 116 root root 4096 2012-02-12 13:21 ../ -rw-r--r-- 1 root root 373 2011-07-24 11:50 dynamicmaps.cf -rw-r--r-- 1 root root 1928 2012-02-12 12:45 main.cf -rw-r--r-- 1 root root 5762 2011-08-03 22:06 master.cf -rw-rw---- 1 root postfix 140 2011-07-24 11:43 mysql-virtual-alias-maps.cf -rw-rw---- 1 root postfix 132 2011-07-24 11:47 mysql-virtual-mailbox-domains.cf -rw-rw---- 1 root postfix 128 2011-07-24 11:47 mysql-virtual-mailbox-maps.cf -rw-r--r-- 1 root root 19509 2011-04-05 06:07 postfix-files -rwxr-xr-x 1 root root 8729 2011-04-05 06:07 postfix-script* -rwxr-xr-x 1 root root 25752 2011-04-05 06:07 post-install* drwxr-xr-x 2 root root 4096 2012-02-12 12:41 sasl/ root@xa-12345:/etc/postfix# ll sasl/ drwxr-xr-x 2 root root 4096 2012-02-12 12:41 ./ drwxr-xr-x 3 root root 4096 2012-02-12 13:33 ../ -rw-r--r-- 1 root root 26 2012-02-12 12:41 smtpd.conf ########################### /etc/dovecot ########################### drwxr-xr-x 3 root root 4096 2011-09-24 11:42 ./ drwxr-xr-x 116 root root 4096 2012-02-12 13:21 ../ drwxr-xr-x 2 root dovecot 4096 2012-02-12 12:03 conf.d/ -rw-r--r-- 1 root dovecot 3693 2011-09-23 15:11 dovecot.conf -rw-r--r-- 1 root dovecot 410 2011-09-23 15:11 dovecot-db.conf.ext -rw-r--r-- 1 root dovecot 782 2011-09-23 15:11 dovecot-dict-sql.conf.ext -rw-r--r-- 1 root dovecot 5508 2011-09-23 15:38 dovecot-sql.conf -rw-r--r-- 1 root dovecot 5348 2011-09-23 15:11 dovecot-sql.conf.ext -rw-r--r-- 1 root dovecot 116 2011-09-23 15:11 README ########################### /etc/default/saslauthd ########################### -rw-r--r-- 1 root root 2043 2012-02-12 11:57 /etc/default/saslauthd ########################### /var/spool/postfix/var/run/ ########################### drwxr-xr-x 3 root root 4096 2012-02-12 12:35 ./ drwxr-xr-x 3 root root 4096 2012-02-12 12:35 ../ drwxr-xr-x 2 root sasl 4096 2012-02-12 12:35 saslauthd/ I have added postfix to the sasl group (don't know if it was necessary but I found this instruction on a website) /etc/group: sasl:x:45:postfix /etc/default/saslauthd: ---------------------- START=yes PWDIR="/var/spool/postfix/var/run/saslauthd" PARAMS="-m ${PWDIR}" PIDFILE="${PWDIR}/saslauthd.pid" DESC="SASL Authentication Daemon" NAME="saslauthd" MECHANISMS="pam" MECH_OPTIONS="" THREADS=5 OPTIONS="-c -m /var/spool/postfix/var/run/saslauthd" mkdir -p /var/spool/postfix/var/run/saslauthd chown -R root.sasl /var/spool/postfix/var/run/saslauthd Then I have checked saslauth is running after restart: root@xa-12345:/home/vmail# ps -ef | grep saslauthd root 6123 1 0 13:21 ? 00:00:00 /usr/sbin/saslauthd -a pam -c -m /var/run/saslauthd -n 5 root 6124 6123 0 13:21 ? 00:00:00 /usr/sbin/saslauthd -a pam -c -m /var/run/saslauthd -n 5 root 6125 6123 0 13:21 ? 00:00:00 /usr/sbin/saslauthd -a pam -c -m /var/run/saslauthd -n 5 root 6127 6123 0 13:21 ? 00:00:00 /usr/sbin/saslauthd -a pam -c -m /var/run/saslauthd -n 5 root 6128 6123 0 13:21 ? 00:00:00 /usr/sbin/saslauthd -a pam -c -m /var/run/saslauthd -n 5 Then when I check after restarting if saslauthd socket is created I don't see anything (don't know if it's normal) root@xa-12345:/home/vmail# ls -lh /var/spool/postfix/var/run/saslauthd total 0 /etc/postfix/sasl/smtpd.conf: ----------------------------- pwcheck_method: saslauthd /etc/postfix/main.cf: --------------------- myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no append_dot_mydomain = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache myhostname = mail.foobar.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = foobar.com mydestination = xa-12345.dadibox.com, localhost.dadibox.com, localhost relayhost = mynetworks = 127.0.0.0/8 80.190.190.190 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all #virtual domains virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf virtual_mailbox_base = /home/vmail virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf # Dovecot LDA virtual_transport = dovecot dovecot_destination_recipient_limit = 1 debug_peer_level = 2 debug_peer_list = 127.0.0.1 smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination smtpd_sasl_application_name = smtpd broken_sasl_auth_clients = yes /etc/dovecot/conf.d/10-auth.conf: -------------------------------------- disable_plaintext_auth = no !include auth-sql.conf.ext !include auth-static.conf.ext /etc/dovecot/conf.d/auth-static.conf.ext: ---------------------------------------- userdb { driver = static args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes } /etc/dovecot/conf.d/auth-sql.conf.ext: -------------------------------------- passdb { driver = sql args = /etc/dovecot/dovecot-sql.conf } /etc/dovecot/dovecot-sql.conf: ------------------------------ driver = mysql connect = host=127.0.0.1 dbname=mailserver user=myuser password=mypassword default_pass_scheme = CRAM-MD5 password_query = SELECT email as user, password FROM view_users WHERE email='%u'; /etc/dovecot/conf.d/10-master.conf: ---------------------------------- service imap-login { inet_listener imap { } inet_listener imaps { } } service pop3-login { inet_listener pop3 { } inet_listener pop3s { } } service lmtp { unix_listener lmtp { } } service imap { } service pop3 { } service auth { unix_listener auth-userdb { mode = 0600 user = vmail #group = } # Postfix smtp-auth unix_listener /var/spool/postfix/private/auth { mode = 0777 } } service auth-worker { } service dict { unix_listener dict { mode = 0600 #user = group = vmail } }

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[Dovecot] Quota Calculation seems to be wrong when using dsync
by Thomas Leuxner 12 Feb '12

12 Feb '12

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Recently I encountered odd quota increases when using 'dsync' with the latest and greatest: 2.0.8 (89936539e3b8). Say you got something in place like this: plugin { quota = dict:user::file:%h/mdbox/dovecot-quota quota_rule = *:storage=1GB quota_rule2 = Trash:storage=+10%% } Kick off a manual backup: $ dsync -u user(a)domain.tld backup mdbox:/<path to backup>/mdbox This results in doubling the quota for the backed up user. It doesn't seem to matter whether 'mirror' or 'backup' mode is used, both increase the "source" quota. Doesn't sound right to me. You can only get to the "real" usage by running a recalc manually: $ doveadm quota recalc -u user(a)domain.tld Anyone else seen this? Regards Thomas P.S. Merry Christmas -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.16 (Darwin) iEYEARECAAYFAk0VtH8ACgkQ+meF/S97aXjUkwCfdZFpUPCOY9UiukT+G68jCHHr mmMAnRHz56BXMzpC84CIYvUn4KHpl8OA =M0AZ -----END PGP SIGNATURE-----

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[Dovecot] Migration to mdbox from Maildir, missing folders!
by Giles Coochey 12 Feb '12

12 Feb '12

So I went and migrated a mailbox from mdbox from maildir format. All seemed ok, but I've found that I now have some missing folders. The mailbox in maildir format had some folders which contained an '&' sign, these appear to have been omitted... What can be done? (I have a backup of the maildir box). Note though that mdbox is now a live mailbox and has sent and received mails since the migration... -- Message sent via my webmail account.

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[Dovecot] folder hierarchies with migration from cyrus to dovecot2
by Wolfgang Rosenauer 12 Feb '12

12 Feb '12

Hi, I finally migrated my IMAP server from cyrus to dovecot2. I have been using cyrus since many years and have not much experience with dovecot yet though. I've converted my imap server using cyrus2dovecot (several times until I thought it was correct) but there is one thing left which confuses me and I'm not sure what I can or need to do to change it. With Cyrus I used unixhierarchysep: yes and subfolders within Cyrus are always below INBOX. I'm used to that in my IMAP clients and wanted to preserve it with Dovecot. So during migration I finally made sure to create the subfolder again below INBOX wich looks fine in Thunderbird for example. But my mobile devices (Android based with K9) were displaying the folders with Cyrus just with their name w/o the INBOX prefix. (Mobile clients are bad in displaying folder hierarchies so it was convenient to have them looking like they were in parallel to the Inbox.) Now I get the folders displayed as INBOX.whatever and my Android mail clients fail to map them to the special (and localized) folders like Trash. While that seems consistent to my current hierarchy it's not what I wanted. So basically my two questions are: - Can I configure Dovecot in a way that it looks like Cyrus? Having subfolders below Inbox but let clients like those on Android display them besides Inbox? - If that's not possible, can I move the subfolders up one level so they are next to the Inbox? How would I do that? Sorry for the beginner questions. I played around with Dovecot before but using it in production environment disclosed some fine differences. Thanks, Wolfgang

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[Dovecot] [PATCH] Allow verification of user's hash in doveadm-pw
by Spack 12 Feb '12

12 Feb '12

Hi, It may be useful for testing purpose to know if a generated password hash correspond to a given clear password. This can be useful to check if a hash generated by another program can be verified by Dovecot without any errors. This patch adds the ability the verify a password hash using `doveadm pw` via the `-V` option. $ doveadm pw -s SSHA.hex Enter new password: Retype new password: {SSHA.HEX}58b910d947c60b35be3e12b0d9897c1f87dfa450e6d5a75c $ doveadm pw -s SSHA.hex -V{SSHA.HEX}58b910d947c60b35be3e12b0d9897c1f87dfa450e6d5a75c Enter new password: Retype new password: {SSHA.HEX}4fdf801f57870fb624bee60895c2308187837dfb3987ca06 (verified) When the user specify a hash, it is checked in place of the usual verification process. This works with all schemes. Just be sure to escape special characters or use simple quotes. $ doveadm pw -s MD5-CRYPT -V'{MD5-CRYPT}$1$R7thDyN.$E0G0czPE/h4S0Hn/b5oVW1' Enter new password: Retype new password: {MD5-CRYPT}$1$rp8nVSqq$gDAPM5iqv1yhBoDZIWsQ4/ (verified) Lets print a failed check: doveadm pw -s CRYPT -V{CRYPT}/uuE/AAAAAAAA Enter new password: Retype new password: reverse password verification check failed FYI the word used for those test cases was "password". Regards, ___ Jimmy Thrasibule <spack.world(a)gmail.com>

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[Dovecot] Can't view all sub folders or e-mail using Dovecot with Maildir.
by Glen Johnson 11 Feb '12

11 Feb '12

I have an IMAP mail server running Postfix, and Dovecot. I have an old Notebook computer which I can view all e-mails. The problem I am having is when I try to use any other computer on the network to view the e-mail I can not see the contents of all the folders. I can see some of the folders and their content but not all. To answer a couple of preliminary questions: dovecot version 2.0.13, postfix version 2.8.3 dovecot.conf ------------------ # 2.0.13: /usr/pkg/etc/dovecot/dovecot.conf # OS: NetBSD 4.0.1 i386 auth_debug = yes auth_verbose = yes disable_plaintext_auth = no listen = * log_path = /var/log/dovecot.log mail_location = maildir:~/Maildir/ passdb { driver = passwd } passdb { args = /usr/pkg/etc/dovecot/passwd driver = passwd-file } protocols = imap service auth { user = root } service imap-login { executable = /usr/pkg/libexec/dovecot/imap-login } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } protocol lda { postmaster_address = postmaster(a)denisecir.com }

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[Dovecot] doveadm index
by Daniel L. Miller 10 Feb '12

10 Feb '12

Does "doveadm index -A INBOX" reindex everything? What about users with multiple folders, both subbed & not subbed under INBOX? -- Daniel

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[Dovecot] Postfix + LMTP with virtual users: how to strip domain from LMTP RCPT TO
by Mildred Ki'Lya 10 Feb '12

10 Feb '12

Hi, I am trying to set up my own mail server (to get off Google) and I have a problem with mail delivery. I'm using Postfix as a SMTP front-end, and use the LMTP server included in dovecot to receive mail from postfix. I have a setup which works with the dovecot LDA, it involves calling dovecot-lda with the -d flag. Postfix computes the username by removing what's after the recipient_delimiter and the domain from the mail address, and gives this username to dovecot. But, I'd prefer using LMTP, as it is possible to reject unknown e-mails without having to duplicate the user database (it is explained here: http://wiki2.dovecot.org/LDA/Postfix ) I set up LMTP so that postfix uses the socket provided by dovecot, and it works. Only I get the following error message in the logs: Feb 10 18:05:53 ashley postfix/smtpd[9298]: NOQUEUE: reject: RCPT from mail-wi0-f179.google.com[209.85.212.179]: 450 4.1.1 <mildred(a)mildred.fr>: Recipient address rejected: unverified address: host mail.mildred.fr[private/dovecot-lmtp] said: 550 5.1.1 <mildred(a)mildred.fr> User doesn't exist: mildred(a)mildred.fr(in reply to RCPT TO command); from=< shanti(a)sogilis.com> to=<mildred(a)mildred.fr> proto=ESMTP helo=< mail-wi0-f179.google.com> Feb 10 18:06:52 ashley postfix/smtpd[9298]: NOQUEUE: reject: RCPT from mail-wi0-f179.google.com[209.85.212.179]: 450 4.1.1 <mildred-test(a)mildred.fr>: Recipient address rejected: unverified address: host mail.mildred.fr[private/dovecot-lmtp] said: 550 5.1.1 <mildred-test(a)mildred.fr> User doesn't exist: mildred-test(a)mildred.fr (in reply to RCPT TO command); from=< shanti(a)sogilis.com> to=<mildred-test(a)mildred.fr> proto=ESMTP helo=< mail-wi0-f179.google.com> I followed the explanations here: http://wiki2.dovecot.org/HowTo/PostfixDovecotLMTP The problem is that my passwd-like file only contains a user named "mildred". I tried to add a user mildred(a)mildred.fr and mildred%mildred.frbut it doesn't work either. Do you know how I could tell dovecot to guess the username correctly ? Thanks, Mildred -- Mildred Ki'Lya http://mildred.fr

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[Dovecot] dsync deleting too many emails (sdbox)
by Asheesh Laroia 09 Feb '12

09 Feb '12

I'm using dsync to synchronize emails on a laptop where wifi connectivity sometimes fails in the middle of a sync. I have a shell script that runs dsync, and here is one line of it including the output of dsync: + dsync -f -m realmail mirror /home/paulproteus/projects/ssh-attach/run ssh rose.makesad.us dsync dsync-local(paulproteus): Error: dbox /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails: Unexpectedly lost uid=337460 dsync-local(paulproteus): Error: msg guid lookup failed: Internal error occurred. Refer to server log for more information. [2012-02-02 11:02:12] dsync-local(paulproteus): Warning: sdbox /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails: Rebuilding index dsync-local(paulproteus): Warning: sdbox /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails: Ignoring invalid filename 130608.broken dsync-local(paulproteus): Warning: sdbox /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails: Ignoring invalid filename 66159.broken dsync-local(paulproteus): Error: Corrupted dbox file /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.66159 (around offset=16): EOF reading msg header (got 0/30 bytes) dsync-local(paulproteus): Error: link(/home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.66159, /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.66159.broken) failed: File exists dsync-local(paulproteus): Error: Corrupted dbox file /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.66159 (around offset=16): EOF reading msg header (got 0/30 bytes) dsync-local(paulproteus): Warning: sdbox: Skipping unfixable file: /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.66159 dsync-local(paulproteus): Warning: sdbox /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails: Ignoring invalid filename 336269.broken dsync-local(paulproteus): Error: Corrupted dbox file /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.130608 (around offset=16): EOF reading msg header (got 0/30 bytes) dsync-local(paulproteus): Error: link(/home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.130608, /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.130608.broken) failed: File exists dsync-local(paulproteus): Error: Corrupted dbox file /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.130608 (around offset=16): EOF reading msg header (got 0/30 bytes) dsync-local(paulproteus): Warning: sdbox: Skipping unfixable file: /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.130608 dsync-remote(paulproteus): Error: proxy server timed out dsync-local(paulproteus): Error: Corrupted dbox file /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.336269 (around offset=16): EOF reading msg header (got 0/30 bytes) dsync-local(paulproteus): Error: link(/home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.336269, /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.336269.broken) failed: File exists dsync-local(paulproteus): Error: Corrupted dbox file /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.336269 (around offset=16): EOF reading msg header (got 0/30 bytes) dsync-local(paulproteus): Warning: sdbox: Skipping unfixable file: /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/u.336269 dsync-local(paulproteus): Warning: Transaction log file /home/paulproteus/Maildir/dbox/mailboxes/realmail/dbox-Mails/dovecot.index.log was locked for 1528 seconds That seemed problematic, but not dangerous. Then I ran a fresh sync, and found 3000 (of 60,000) messages had been deleted and expunged from the "realmail" box. I'm guessing this is some bad interaction with sdbox and partial file downloads? I haven't read the code for this, but I would guess the dsync process isn't being atomic about file transfers, so it is leaving half-completed transfers in place, which results in corrupt files when they're next examined. dovecot -n output: # 2.0.15: /etc/dovecot/dovecot.conf # OS: Linux 3.0.0-2-amd64 x86_64 Debian wheezy/sid mail_location = sdbox:~/Maildir/dbox passdb { driver = pam } protocols = " imap" ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } -- Asheesh.

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[Dovecot] Strange behavior from shared namespaces and INBOX, probably a bug
by Christoph Bussenius 09 Feb '12

09 Feb '12

Hi, we have experienced some erratic behavior from Dovecot 2.0.15 if a user's INBOX is shared. Some folders of user1, including the INBOX, have been shared using these IMAP commands: . login user1 XXXXXX . setacl INBOX user2 lrwstiekx . setacl box-a user2 lrwstiekx Now if we use telnet to log in as user2 and select "shared/user1", it will contain the same mails as "shared/user1/INBOX". The really strange thing is that "SELECT"-ing "shared/user1" succeeds only if it is the first command afted logging in. If it not the first command (if e. g. the "LIST" or "SELECT" command has already been used), then dovecot will report that the mailbox does not exist. As a result, user agents like Thunderbird will behave very erratically in this setup. They may show both mailboxes ("shared/user1" and "shared/user1/INBOX") with the same mails, but will not always succeed to download mails for "shared/user1". We were able to reproduce this behavior with a quite simple configuration (see further below), so I doubt that the problem is in the configuration. So, is this a bug in Dovecot? I am not quite sure how exactly it should behave, but it definitely does not seem right this way. Below are the results from telnet: Sending: . login user2 XXXXXX . select shared/user1 Receiving: * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 5 EXISTS * 0 RECENT * OK [UNSEEN 1] First unseen. * OK [UIDVALIDITY 1316698162] UIDs valid * OK [UIDNEXT 6] Predicted next UID * OK [HIGHESTMODSEQ 1] Highest . OK [READ-WRITE] Select completed. Sending: . fetch 1:2 (internaldate rfc822.size) Receiving: * 1 FETCH (INTERNALDATE "25-Apr-2006 23:09:07 +0200" RFC822.SIZE 5660) * 2 FETCH (INTERNALDATE "25-Apr-2006 23:11:01 +0200" RFC822.SIZE 6612) . OK Fetch completed. Sending: . select shared/user1/INBOX Receiving: * OK [CLOSED] Previous mailbox closed. * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 5 EXISTS * 0 RECENT * OK [UNSEEN 1] First unseen. * OK [UIDVALIDITY 1316698162] UIDs valid * OK [UIDNEXT 6] Predicted next UID * OK [HIGHESTMODSEQ 1] Highest . OK [READ-WRITE] Select completed. Sending: . fetch 1:2 (internaldate rfc822.size) Receiving: (Note that these mails are the same as those above) * 1 FETCH (INTERNALDATE "25-Apr-2006 23:09:07 +0200" RFC822.SIZE 5660) * 2 FETCH (INTERNALDATE "25-Apr-2006 23:11:01 +0200" RFC822.SIZE 6612) . OK Fetch completed. Now we select the first mailbox again: Sending: . select shared/user1 Receiving: . NO Mailbox doesn't exist: shared/user1 * OK [CLOSED] Previous mailbox closed. The same command did not fail earlier. Listing the mailboxes shows the following: Sending: . list "" * Receiving: * LIST (\HasNoChildren) "/" "INBOX" * LIST (\Noselect \HasChildren) "/" "shared/user1" * LIST (\HasNoChildren) "/" "shared/user1/box-a" * LIST (\HasNoChildren) "/" "shared/user1/INBOX" . OK List completed. I can reproduce this behavior using the following setup: Virtual users on an ext4 filesystem in /mail/users/{user1,user2} configured in a passwd file (/usr/local/dovecot/etc/dovecot/users): user1:{plain}XXXXXX:::user1:/mail/users/user1:: user2:{plain}XXXXXX:::user2:/mail/users/user2:: Output of doveconf -n: # 2.0.15: /usr/local/dovecot/etc/dovecot/dovecot.conf # OS: Linux 2.6.32-33-server x86_64 Ubuntu 10.04.3 LTS disable_plaintext_auth = no mail_gid = vmail mail_plugins = acl mail_uid = vmail namespace { inbox = yes location = maildir:~/Maildir prefix = separator = / } namespace { list = children location = maildir:%%h/Maildir prefix = shared/%%u/ separator = / subscriptions = no type = shared } passdb { args = scheme=CRYPT username_format=%u /usr/local/dovecot/etc/dovecot/users driver = passwd-file } plugin { acl = vfile acl_shared_dict = file:/mail/shared-mailboxes } protocols = imap service auth { unix_listener auth-userdb { group = vmail mode = 0660 } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { args = username_format=%u /usr/local/dovecot/etc/dovecot/users driver = passwd-file } protocol imap { mail_plugins = acl imap_acl } Cheers, Christoph Bußenius -- Christoph Bußenius Rechnerbetriebsgruppe der Fakultäten Informatik und Mathematik TU München +49 89-289-18519 <> Raum 00.05.055 <> Boltzmannstr. 3 <> Garching

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[Dovecot] Segfaul probably during dsync
by Matthias Rieber 09 Feb '12

09 Feb '12

Hi, I get core dumps, probably during dsync: Core was generated by `dovecot/imap postlogin'. Program terminated with signal 6, Aborted. [New process 7727] #0 0x00002ba911c04ed5 in raise () from /lib/libc.so.6 #0 0x00002ba911c04ed5 in raise () from /lib/libc.so.6 No symbol table info available. #1 0x00002ba911c063f3 in abort () from /lib/libc.so.6 No symbol table info available. #2 0x00002ba91157d775 in default_fatal_finish (type=<value optimized out>, status=0) at failures.c:187 backtrace = 0xcebd838 "/usr/local/lib/dovecot/libdovecot.so.0 [0x2ba91157d762] -> /usr/local/lib/dovecot/libdovecot.so.0 [0x2ba91157d7c6] -> /usr/local/lib/dovecot/libdovecot.so.0(i_error+0) [0x2ba91157dbb8] -> /usr/local/l"... #3 0x00002ba91157d7c6 in i_internal_fatal_handler (ctx=0x7fffadba32a0, format=<value optimized out>, args=<value optimized out>) at failures.c:645 status = 0 #4 0x00002ba91157dbb8 in i_panic (format=<value optimized out>) at failures.c:259 ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0} args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fffadba3370, reg_save_area = 0x7fffadba32b0}} #5 0x00002ba9112b4018 in index_search_result_update_flags (result=0xdebe3e0, uids=0x7fffadba3640) at index-search-result.c:87 search_arg = {next = 0xd25b098, type = SEARCH_UIDSET, value = {subargs = 0x0, seqset = {arr = {buffer = 0xcebd640, element_size = 8}, v = 0xcebd640, v_modifiable = 0xcebd640}, str = 0x0, time = 0, size = 0, flags = 0, search_flags = 0, date_type = 0, thread_type = MAIL_THREAD_NONE, keywords = 0x0, modseq = 0x0, search_args = 0x0, search_result = 0x0, mailbox_glob = 0x0}, context = 0x0, hdr_field_name = 0x0, not = 0, match_always = 0, nonmatch_always = 0, result = -1} ret = <value optimized out> __FUNCTION__ = "index_search_result_update_flags" #6 0x00002ba91276ac92 in virtual_sync_backend_box (ctx=0xdebcdb0, bbox=0xdcb8e38) at virtual-sync.c:725 sync_flags = <value optimized out> status = {messages = 121, recent = 0, unseen = 111, uidvalidity = 1225530594, uidnext = 182153, first_unseen_seq = 0, first_recent_uid = 182152, highest_modseq = 0, virtual_size = 0, keywords = 0x0, cache_fields = 0x0, nonpermanent_modseqs = 0} ret = <value optimized out> __FUNCTION__ = "virtual_sync_backend_box" #7 0x00002ba91276b661 in virtual_storage_sync_init (box=0xcf524c0, flags=MAILBOX_SYNC_FLAG_FIX_INCONSISTENT) at virtual-sync.c:1400 sync_ctx = <value optimized out> ret = <value optimized out> #8 0x00002ba911299b71 in mailbox_sync_init (box=0xcf524c0, flags=MAILBOX_SYNC_FLAG_FIX_INCONSISTENT) at mail-storage.c:947 _data_stack_cur_id = 0 ctx = <value optimized out> #9 0x00002ba91129a337 in mailbox_sync (box=0x1e2f, flags=7727) at mail-storage.c:993 ctx = <value optimized out> status = {sync_delayed_expunges = 0} #10 0x0000000000417602 in imap_status_get (cmd=0xcf00410, ns=0xcefccd0, mailbox=0xcebd330 "rapidsolution", items=0x7fffadba3a50, result_r=0x7fffadba39e0, error_r=0x7fffadba3a38) at imap-status.c:85 client = (struct client *) 0xceffca0 box = (struct mailbox *) 0x1e2f error = <value optimized out> ret = <value optimized out> #11 0x000000000040e763 in cmd_status (cmd=0xcf00410) at cmd-status.c:52 client = (struct client *) 0xceffca0 status = MAILBOX_NAME_EXISTS_MAILBOX args = (const struct imap_arg *) 0xcf02c68 list_args = (const struct imap_arg *) 0xcf02da8 items = {mailbox_items = 17, guid = 0} result = {status = {messages = 124, recent = 0, unseen = 0, uidvalidity = 1301953092, uidnext = 1, first_unseen_seq = 0, first_recent_uid = 0, highest_modseq = 0, virtual_size = 48005140525491, keywords = 0x0, cache_fields = 0x80, nonpermanent_modseqs = 0}, mailbox_guid = "{µW\021©+\000\000\200\000\000\000\000\000\000"} ns = <value optimized out> mailbox = 0xcf02d58 "virtual.rapidsolution" storage_name = 0xcebd330 "rapidsolution" error = <value optimized out> #12 0x000000000041055c in client_command_input (cmd=0xcf00410) at imap-client.c:672 client = (struct client *) 0xceffca0 command = <value optimized out> __FUNCTION__ = "client_command_input" #13 0x000000000041060d in client_command_input (cmd=0xcf00410) at imap-client.c:722 client = (struct client *) 0xceffca0 command = (struct command *) 0x6 __FUNCTION__ = "client_command_input" #14 0x0000000000410785 in client_handle_input (client=0xceffca0) at imap-client.c:763 _data_stack_cur_id = 3 ret = 54 remove_io = <value optimized out> handled_commands = false __FUNCTION__ = "client_handle_input" #15 0x00000000004111a2 in client_input (client=0xceffca0) at imap-client.c:814 cmd = <value optimized out> output = (struct ostream *) 0xcf00288 bytes = <value optimized out> __FUNCTION__ = "client_input" #16 0x00002ba911588e38 in io_loop_call_io (io=0xcf00320) at ioloop.c:384 ioloop = (struct ioloop *) 0xcec5620 t_id = 2 #17 0x00002ba911589dc2 in io_loop_handler_run (ioloop=<value optimized out>) at ioloop-epoll.c:213 ctx = (struct ioloop_handler_context *) 0xcec5850 event = (const struct epoll_event *) 0xcec58c0 list = (struct io_list *) 0xcf00370 io = (struct io_file *) 0x1e2f tv = {tv_sec = 4, tv_usec = 514891} msecs = <value optimized out> ret = <value optimized out> call = false #18 0x00002ba911588dc8 in io_loop_run (ioloop=0xcec5620) at ioloop.c:405 No locals. #19 0x00002ba911576c93 in master_service_run (service=0xcec54f0, callback=0x1e2f) at master-service.c:478 No locals. #20 0x0000000000419401 in main (argc=2, argv=0xcec5370) at main.c:375 service_flags = <value optimized out> storage_service_flags = <value optimized out> postlogin_socket_path = 0xcebd080 "/usr/local/var/run/dovecot/postlogin" username = 0x0 c = <value optimized out> set_roots = {0x41c680, 0x0} Logfile: Apr 10 13:49:34 shrike dovecot: imap-login: Login: user=<matthias>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=14235, secured Apr 10 13:49:34 shrike dovecot: (null)Error: rawlog_open: open() failed for /home/matthias/dovecot.rawlog/20110410-134934-14237.in: Permission denied Apr 10 13:49:43 shrike dovecot: imap(matthias): Panic: file index-search-result.c: line 87 (search_result_update_search): assertion failed: (next_uid == mail->uid) Apr 10 13:49:43 shrike dovecot: imap(matthias): Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0 [0x2b4df76ce762] -> /usr/local/lib/dovecot/libdovecot.so.0 [0x2b4df76ce7c6] -> /usr/local/lib/dovecot/libdovecot.so.0(i_error+0) [0x2b4df76cebb8] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(index_search_result_update_flags+0x2d8) [0x2b4df7405018] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so [0x2b4df88bbc92] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(virtual_storage_sync_init+0x871) [0x2b4df88bc661] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x31) [0x2b4df73eab71] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_sync+0x27) [0x2b4df73eb337] -> dovecot/imap(imap_status_get+0x92) [0x417602] -> dovecot/imap(cmd_status+0x163) [0x40e763] -> dovecot/imap [0x41055c] -> dovecot/imap [0x41060d] -> dovecot/imap(client_handle_input+0x45) [0x410785] -> dovecot/imap(client_input+0x62) [0x4111a2] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x48) [0x2b4df Apr 10 13:49:43 shrike dovecot: master: Error: service(imap): child 14235 killed with signal 6 (core dumped) # dovecot --version 2.0.11 (cef23de90ff1) Matthias

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[Dovecot] 2.1.rc1 (8a63f621bd2e): SiS permission issue + crash
by Pascal Volk 09 Feb '12

09 Feb '12

Since changeset 8a63f621bd2e I'm one step closer to the perfect working setup. I'm sharing one GID per domain, all it's alias names and accounts. So I can use: mail_attachment_dir = /srv/mail/.SiS/%{gid} In order to avoid permission trouble I've set fs ACL on the .SiS dir: ,--[ getfacl srv/mail/.SiS ]-- | # file: srv/mail/.SiS | # owner: root | # group: root | user::rwx | group::--x | mask::--x | other::-wx | default:user::rwx | default:group::rwx | default:mask::rwx | default:other::--- `-- OK, lets test the setup: dsync -u test-0(a)example.com mirror maildir:/tmp/Maildir rm -rf Maildir && cp -a Maildir_org Maildir && chown -R 70010:70002 Maildir dsync -vu test-1(a)example.com mirror maildir:/tmp/Maildir dsync(test-1(a)example.com): Info: Drafts: only in dest (guid=b6a53627f3cbe24e33030000850d2fad) dsync(test-1(a)example.com): Info: Sent: only in dest (guid=b7a53627f3cbe24e33030000850d2fad) dsync(test-1(a)example.com): Info: Junk-E-Mail: only in dest (guid=b8a53627f3cbe24e33030000850d2fad) dsync(test-1(a)example.com): Info: Trash: only in dest (guid=b9a53627f3cbe24e33030000850d2fad) dsync(test-1(a)example.com): Info: INBOX: only in dest (guid=baa53627f3cbe24e33030000850d2fad) dsync(test-1(a)example.com): Error: stat(/srv/mail/.SiS/70002/a2/7b/.temp.blau.819.4f06409857c627e0) failed: Permission denied dsync(test-1(a)example.com): Error: safe_mkstemp(/srv/mail/.SiS/70002/a2/7b/.temp.blau.819.) failed: Permission denied dsync(test-1(a)example.com): Panic: file dsync-worker-local.c: line 1644 (local_worker_save_msg_continue): assertion failed: (ret == -1) dsync(test-1(a)example.com): Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0x4faf1) [0x7f4db31f4af1] -> /usr/local/lib/dovecot/libdovecot.so.0(default_error_handler+0) [0x7f4db31f4b7d] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f4db31f4e01] -> dsync() [0x416af8] -> dsync() [0x416e46] -> dsync(dsync_worker_msg_save+0x82) [0x412cb2] -> dsync() [0x40b7e0] -> dsync() [0x417286] -> dsync() [0x417324] -> dsync(dsync_worker_msg_get+0xa8) [0x412dd4] -> dsync() [0x40bbf3] -> dsync() [0x40bd62] -> dsync() [0x40c106] -> dsync() [0x40c318] -> dsync(dsync_brain_msg_sync_new_msgs+0x1c) [0x40c336] -> dsync(dsync_brain_msg_sync_more+0x1ae) [0x40b15e] -> dsync() [0x409b88] -> dsync(dsync_brain_sync+0x231) [0x40a074] -> dsync() [0x4084fb] -> dsync() [0x408729] -> dsync(dsync_brain_sync+0x1a7) [0x409fea] -> dsync() [0x408238] -> dsync() [0x408388] -> dsync(dsync_brain_sync+0x10b) [0x409f4e] -> dsync(dsync_brain_sync_all+0x24) [0x40a16b] -> dsync(main+0x680) [0x407b2b ] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7f4db2e3fead] -> dsync() [0x406e09] Aborted (core dumped) Looks like Dovecot ignores the ACL. I think a mail_attachment_dir_mode setting could help to work around this problem. Dunno what would be a good default value. But I would set mail_attachment_dir_mode = 0770 The attachment files have mode 0660, that's perfect in my setup. Regards, Pascal -- The trapper recommends today: c01dcafe.1134404(a)localdomain.org

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Re: [Dovecot] Crash on mail folder delete
by Daniel L. Miller 09 Feb '12

09 Feb '12

On 1/25/2012 3:43 PM, Daniel L. Miller wrote: > On 1/25/2012 3:42 PM, Timo Sirainen wrote: >> On 26.1.2012, at 1.37, Daniel L. Miller wrote: >> >>> Attempting to delete a folder from within the trash folder using >>> Thunderbird. I see the following in the log: >> Dovecot version? >> > 2.1.rc3. I'm compiling rc5 now... > Error still there on rc5. Jan 25 16:03:47 bubba dovecot: imap(dmiller(a)amfes.com): Panic: file mailbox-list-fs.c: line 156 (fs_list_get_path): assertion failed: (mailbox_list_is_valid_pattern(_list, name)) Jan 25 16:03:47 bubba dovecot: imap(dmiller(a)amfes.com): Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0x3f1ba) [0x7f7c3f0331ba] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x3f206) [0x7f7c3f033206] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x1804a) [0x7f7c3f00c04a] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0x47317) [0x7f7c3f2c0317] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(+0x6c71) [0x7f7c3dc48c71] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(+0x6d47) [0x7f7c3dc48d47] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(acl_mailbox_allocated+0x9e) [0x7f7c3dc4c61e] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(hook_mailbox_allocated+0x62) [0x7f7c3f2b4662] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_alloc+0xb2) [0x7f7c3f2b3482] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](cmd_delete+0x72) [0x409972] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](command_exec+0x3d) [0x4109fd] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x40f9ce] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x40faad] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](client_handle_input+0x135) [0x40fcd5] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](client_input+0x5f) [0x4105ff] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x36) [0x7f7c3f03f5d6] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x9f) [0x7f7c3f04065f] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x28) [0x7f7c3f03f578] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f7c3f02c593] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](main+0x2a5) [0x418a55] -> /lib/libc.so.6(__libc_start_main+0xfe) [0x7f7c3ec8fd8e] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x408449] Jan 25 16:03:48 bubba dovecot: imap(dmiller(a)amfes.com): Panic: file mailbox-list-fs.c: line 156 (fs_list_get_path): assertion failed: (mailbox_list_is_valid_pattern(_list, name)) Jan 25 16:03:48 bubba dovecot: imap(dmiller(a)amfes.com): Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0x3f1ba) [0x7f9e52e211ba] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x3f206) [0x7f9e52e21206] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x1804a) [0x7f9e52dfa04a] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0x47317) [0x7f9e530ae317] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(+0x6c71) [0x7f9e51a36c71] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(+0x6d47) [0x7f9e51a36d47] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(acl_mailbox_allocated+0x9e) [0x7f9e51a3a61e] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(hook_mailbox_allocated+0x62) [0x7f9e530a2662] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_alloc+0xb2) [0x7f9e530a1482] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](cmd_delete+0x72) [0x409972] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](command_exec+0x3d) [0x4109fd] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x40f9ce] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x40faad] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](client_handle_input+0x135) [0x40fcd5] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](client_input+0x5f) [0x4105ff] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x36) [0x7f9e52e2d5d6] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x9f) [0x7f9e52e2e65f] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x28) [0x7f9e52e2d578] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f9e52e1a593] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](main+0x2a5) [0x418a55] -> /lib/libc.so.6(__libc_start_main+0xfe) [0x7f9e52a7dd8e] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x408449] Jan 25 16:03:48 bubba dovecot: imap(dmiller(a)amfes.com): Fatal: master: service(imap): child 3300 killed with signal 6 (core dumps disabled) Jan 25 16:03:48 bubba dovecot: imap(dmiller(a)amfes.com): Fatal: master: service(imap): child 3267 killed with signal 6 (core dumps disabled) -- Daniel

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[Dovecot] BUG(?): Incorrect responses for ACL prohibited actions
by Michael M Slusarz 09 Feb '12

09 Feb '12

In a mailbox that has ACL restrictions on both DELETE and EXPUNGE (i.e. no 'e' or 't' rights), I see the following: 3 UID STORE 3173 (UNCHANGEDSINCE 353) +FLAGS \deleted 3 OK Store completed. (UID 3173 is not flagged \deleted) [...] 6 UID EXPUNGE 1:* 6 OK Expunge completed. (At least 1 UID is flagged \deleted in mailbox) Shouldn't these commands be returning "NO" instead of "OK"? RFC 3501 [6.4.6] for STORE: NO - store error: can't store that data and RFC RFC 3501 [6.4.3] for EXPUNGE: NO - expunge failure: can't expunge (e.g., permission denied) Additionally, RFC 5530 [3] provides the NOPERM response code: NOPERM The access control system (e.g., Access Control List (ACL), see [RFC 4314]) does not permit this user to carry out an operation, such as selecting or creating a mailbox. C: f select "/archive/projects/experiment-iv" S: f NO [NOPERM] Access denied My reading of this is that NOPERM should be returned for ANY ACL prohibited action, not just for selecting or creating a mailbox. Dovecot 2.0.12 does not return NOPERM for DELETE/EXPUNGE actions (at a minimum) that are prohibited. Thoughts? michael

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[Dovecot] [dovecot] Getting duplicates when using snarf plugin with mbox backend
by Jonathan SIegle 09 Feb '12

09 Feb '12

Running dovecot version 2.0.11. To reproduce, open two imap sessions and issue a check command from each at the same time with new mail in the queue. 0 login testuser testpw 1 select inbox -- Deliver mail -- 2 check Thanks, Jonathan

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[Dovecot] POP3 UIDLs with virtual INBOX and migration from maildir->mdbox
by Peter Mogensen 09 Feb '12

09 Feb '12

Hi, Considering the scenario, where you have some old account with a different POP3 UIDL format and you migrate them to dovecot. So these old UIDLs would be saved to dovecot-uidlist. At some later time you want to introduce a virtual POP3 INBOX like described on: http://wiki.dovecot.org/Plugins/Virtual So you decide to make the new UIDL format "%f" - to make them unique across folders. So far so good. But then you decide to migrate to mdbox with all your old UIDLs. The docs says that saving old UIDLs is only supported in Maildir and that %f is only supported in Maildir. So is this at all possible? Would pop3_uidl_format = %g solve this (except for the old legacy UIDL's) ? /Peter

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[Dovecot] vsz_limit
by Héctor Moreno Blanco 09 Feb '12

09 Feb '12

Hello Timo and dovecot teamwork, We have dovecot 2.0.10 installed with this configuration: # dovecot -n # 2.0.10: /usr/local/dovecot/etc/dovecot/dovecot.conf # OS: Linux 2.6.18-92.1.18.el5 x86_64 Scientific Linux SL release 5.2 (Boron) auth_cache_size = 500 k auth_cache_ttl = 1000 secs disable_plaintext_auth = no first_valid_uid = 501 lock_method = dotlock mail_fsync = always mail_gid = vmail mail_location = maildir:%h/Maildir mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = quota autocreate mail_uid = vmail 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 mmap_disable = yes namespace { inbox = yes location = prefix = separator = . type = private } namespace { hidden = yes inbox = no list = no location = prefix = INBOX. separator = . type = private } namespace { location = maildir:%h/Maildir/_backup prefix = _backup. separator = . type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } plugin/autocreate = Spam plugin/autosubscribe = Spam plugin/quota = maildir:_backup:ns= plugin/quota_warning = storage=75%% quota-warning 75 %u plugin/quota_warning2 = storage=90%% quota-warning 90 %u plugin/sieve = %h/.dovecot.sieve plugin/sieve_dir = %h/sieve protocols = imap pop3 sieve service anvil { client_limit = 5000 } service auth { client_limit = 9000 unix_listener auth-master { group = vmail mode = 0700 user = vmail } user = root vsz_limit = 2 G } service imap-login { executable = /usr/local/dovecot/libexec/dovecot/imap-login inet_listener imap { address = * port = 143 } inet_listener imaps { address = * port = 993 } process_limit = 2048 process_min_avail = 20 user = vmail } service imap { executable = /usr/local/dovecot/libexec/dovecot/imap process_limit = 2048 } service managesieve-login { executable = /usr/local/dovecot/libexec/dovecot/managesieve-login inet_listener sieve { address = * port = 4190 } inet_listener sieve_deprecated { address = * port = 12000 } user = vmail } service managesieve { executable = /usr/local/dovecot/libexec/dovecot/managesieve } service pop3-login { executable = /usr/local/dovecot/libexec/dovecot/pop3-login inet_listener pop3 { address = * port = 110 } inet_listener pop3s { address = * port = 995 } process_limit = 2048 process_min_avail = 20 user = vmail } service pop3 { executable = /usr/local/dovecot/libexec/dovecot/pop3 process_limit = 2048 } service quota-warning { executable = script /usr/local/dovecot/bin/quota-warning.sh unix_listener quota-warning { group = vmail mode = 0700 user = vmail } } ssl_cert = </etc/ssl/correo_xxxx.crt ssl_key = </etc/ssl/correo_xxxx.pem syslog_facility = local3 userdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } valid_chroot_dirs = /buzones/ protocol imap { imap_client_workarounds = mail_plugin_dir = /usr/local/dovecot/lib/dovecot mail_plugins = quota autocreate imap_quota } protocol pop3 { mail_plugin_dir = /usr/local/dovecot/lib/dovecot mail_plugins = quota autocreate pop3_uidl_format = %08Xu%08Xv } protocol lda { auth_socket_path = /usr/local/dovecot/var/run/dovecot/auth-master hostname = buzon.xxxx.es mail_plugin_dir = /usr/local/dovecot/lib/dovecot mail_plugins = quota autocreate sieve postmaster_address = postmaster(a)xxxx.es quota_full_tempfail = no rejection_reason = Su mensaje para <%t> fue rechazado automaticamente por nuestro sistema :%n%r rejection_subject = Rechazado: %s sendmail_path = /usr/sbin/exim } protocol sieve { managesieve_implementation_string = dovecot Pigeonhole managesieve_logout_format = bytes ( in=%i : out=%o ) managesieve_max_line_length = 65536 } The problem is at the moment of maximum load of the system. We can see many imap sessions but there are also many imap-login processes, which is weird. Has it something to do with any parameter of our configuration? We think is something with the vsz_limit parameter. How can we tune it? Thank you very much in advanced. Kind regards. ________________________________ [cid:image001.gif@01CCE647.65B8FB30] Héctor Moreno Blanco División de Seguridad e Infraestructuras / Security and Infrastructures Division GMV Isaac Newton, 11 P.T.M. Tres Cantos E-28760 Madrid Tel. +34 91 807 21 00 Fax +34 91 807 21 99 www.gmv.com <http://www.gmv.com/> [cid:image002.gif@01CCE647.65B8FB30]<http://www.gmv.com/b2_gmv> [cid:image003.gif@01CCE647.65B8FB30]<http://www.facebook.com/infoGMV> [cid:image004.gif@01CCE647.65B8FB30]<http://www.twitter.com/infoGMV_es> [cid:image005.gif@01CCE647.65B8FB30]<http://www.youtube.com/infoGMV> ______________________ This message including any attachments may contain confidential information, according to our Information Security Management System, and intended solely for a specific individual to whom they are addressed. Any unauthorised copy, disclosure or distribution of this message is strictly forbidden. If you have received this transmission in error, please notify the sender immediately and delete it. ______________________ Este mensaje, y en su caso, cualquier fichero anexo al mismo, puede contener informacion clasificada por su emisor como confidencial en el marco de su Sistema de Gestion de Seguridad de la Informacion siendo para uso exclusivo del destinatario, quedando prohibida su divulgacion copia o distribucion a terceros sin la autorizacion expresa del remitente. Si Vd. ha recibido este mensaje erroneamente, se ruega lo notifique al remitente y proceda a su borrado. Gracias por su colaboracion. ______________________

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[Dovecot] fts (lucene): indexing of virtual mailboxes?
by Lutz Preßler 09 Feb '12

09 Feb '12

Hello, (recent 2.1alpha2 variant - my test setup known to Timo). No time to diagnose in depth at the moment, but I just noticed that SEARCHing in virtual mailboxes seems not to create lucene index content of its own but use those of referenced mailboxes? The problem is that no new indexing takes place. Example: with INBOX INBOX.in% all in dovecot-virtual, for a given query I only get matches from those mailboxes searched in previously. Regards, Lutz

2 2

Re: [Dovecot] Performance of Maildir vs sdbox/mdbox
by Lee Standen 09 Feb '12

09 Feb '12

On 18.01.2012 21:54, Timo Sirainen wrote: > On Wed, 2012-01-18 at 20:44 +0800, Lee Standen wrote: > >> I've been desperately trying to find some comparative performance >> information about the different mailbox formats supported by Dovecot >> in >> order to make an assessment on which format is right for our >> environment. > > Unfortunately there aren't really any. Everyone who seems to switch > to > sdbox/mdbox usually also change their hardware at the same time, so > there aren't really any before/after metrics. I've of course some > unrealistic synthetic benchmarks, but I don't think they are very > useful. > > So, I would also be very interested in seeing some before/after > graphs > of disk IO, CPU and memory usage of Maildir -> dbox switch in same > hardware. > > Maildir is anyway definitely worse performance then sdbox or mdbox. > mdbox also uses less NFS operations, but I don't know how much faster > (if any) it is with Netapps. We have bought new hardware for this project too, so we might not be able to help out massively on that front... we do have NFS operations monitored though so we should at least be able to compare that metric since the underlying storage operating system is the same. All NetApp hardware runs their Data ONTAP operating system, so the metrics are assured to be the same :) How about this... are there any tools available (that you know of) to capture real live customer POP3/IMAP traffic and replay it against a separate system? That might be a feasible option for doing a like-for-like comparison in our environment? We could probably get something in place to simulate the load if we can do something like that... >> * All mail storage presented via NFS over 10Gbps Ethernet (Jumbo >> Frames) >> >> * Postfix will feed new email to Dovecot via LMTP >> >> * Dovecot servers have been split based on their role >> >> - Dovecot LDA Servers (running LMTP protocol) >> >> - Dovecot POP/IMAP servers (running POP/IMAP protocols) > > You're going to run into NFS caching troubles with the above split > setup. I don't recommend it. You will see error messages about index > corruption with it, and with dbox it can cause metadata loss. > http://wiki2.dovecot.org/NFS http://wiki2.dovecot.org/Director That might be the one thing (unfortunately) which prevents us from going with the dbox format. I understand the same issue can actually occur on Dovecot Maildir as well, but because Maildir works without these index files, we were willing to just go with it. I will raise it again, but there has been a lot of push back about introducing a single point of failure, even though this is a perceived one. The biggest challenge I have at the moment if I try to sell the dbox format is providing some kind of data on the expected gains from this. If it's only a 10% reduction in NFS operations for the typical user, then it's probably not worth our while. > >> - LDA & POP/IMAP servers are segmented into geographically split >> groups >> (so no server sees every single mailbox) >> >> - Nginx proxy used to terminate customer connections, connections >> are >> redirected to the appropriate geographic servers > > Can the same mailbox still be accessed via multiple geographic > servers? > I've had some plans for doing this kind of access/replication using > dsync.. No, we're using the nginx proxy layer to ensure that if a user in Sydney (for example) tries to access a Perth mailbox, their connection is redirected (by nginx) to the Perth POP/IMAP servers. Postfix configuration is handling the same thing on the LMTP side. The requirement here is for all users to have the same settings regardless of location, but still be able to locate the email servers and data close to the customer. > >> * Apache Lucene indexes will be used to accelerate IMAP search for >> users > > Dovecot's fts-solr or fts-lucene? fts-solr. I've been using Lucene/Solr interchangeably when discussing this project with my peers :) > >> Our closest current live configuration (Qmail SMTP, Courier IMAP, >> Maildir) >> has 600K mailboxes and pushes ~ 35,000 NFS operations per second at >> peak >> >> Some of the things I would like to know: >> >> * Are we likely to see a reduction in IOPS/User by using Maildir >> alone under >> Dovecot? > > If you have webmail type of clients, definitely. For > Outlook/Thunderbird > you should still see improvement, but not necessarily as much. > > You didn't mention POP3. That isn't Dovecot's strong point. Its > performance should be about the same as Courier-POP3, but could be > less > than QMail-POP3. Although if many of your POP3 users keep a lot of > mails > on server it > Our existing systems run with about 21K concurrent IMAP connections at any one point in time, not counting Webmail POP3 runs at about 3600 concurrent connections, but since those are not long lived it's not particularly indicative of customer numbers. Vague recollection is something like 25% IMAP, 55-60% POP3, rest < 20% Webmail. I'd have to go back and check the breakdown again. >> * If someone can give some technical reasoning behind why mdbox does >> less >> IOPS than Maildir? > > Maildir renames files a lot. From new/ -> to cur/ and then every time > message flag changes. That's why sdbox is faster. Why mdbox should be > faster than sdbox is because mdbox puts (or should put) more mail > data > physically closer in disks to make reading it faster. > >> I understand some of the reasons for the mdbox IOPS question, but I >> need >> some more information so we can discuss internally and make a >> decision as to >> whether we're comfortable going with mdbox from day one. We're very >> familiar with Maidlir, and there's just some uneasiness internally >> around >> going to a new mail storage format. > > It's at least safer to first switch to Dovecot+Maildir to make sure > that > any problems you might find aren't related to the mailbox format.. Yep, I'm considering that. The flip side is that it's actually going to be difficult for us to change mail format once we've migrated into this system, but we have an opportunity for (literally) a month long testing phase beginning in Feb/March which will let us test as many possibilities as we can.

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[Dovecot] [PATCH] Bad boundary check in client_find_namespace
by Christoph Bussenius 09 Feb '12

09 Feb '12

Hi, while trying to investigate the bug I reported last week, I found that there is a broken boundary check in client_find_namespace in src/imap/imap-commands-util.c. The code is: /* make sure two hierarchy separators aren't next to each others */ for (p = storage_name+1; *p != '\0'; p++) { if (p[0] == ns->real_sep && p[-1] == ns->real_sep) { client_send_tagline(cmd, "NO Invalid mailbox name."); return NULL; } } The loop iterates over the string storage_name starting from its second byte. However, the string may be "". This is the case if you select the root of a namespace, like in "SELECT shared" or "SELECT shared/user1". In that case, the code will read past the end of the buffer from random memory until it finds a zero byte or a duplicate separator. This would fix it: diff -ru dovecot-2.0.15.orig/src/imap/imap-commands-util.c dovecot-2.0.15/src/imap/imap-commands-util.c --- dovecot-2.0.15.orig/src/imap/imap-commands-util.c 2011-08-02 12:29:37.000000000 +0200 +++ dovecot-2.0.15/src/imap/imap-commands-util.c 2011-09-26 18:33:16.121917759 +0200 @@ -81,7 +81,9 @@ } /* make sure two hierarchy separators aren't next to each others */ - for (p = storage_name+1; *p != '\0'; p++) { + for (p = storage_name; *p != '\0'; p++) { + if (p == storage_name) + continue; if (p[0] == ns->real_sep && p[-1] == ns->real_sep) { client_send_tagline(cmd, "NO Invalid mailbox name."); return NULL; Cheers, Christoph Bußenius -- Christoph Bußenius Rechnerbetriebsgruppe der Fakultäten Informatik und Mathematik TU München +49 89-289-18519 <> Raum 00.05.055 <> Boltzmannstr. 3 <> Garching

3 2

[Dovecot] 2.0.14 doveadm proxy list segfault
by Tom Pawlowski 09 Feb '12

09 Feb '12

Hi Timo, Periodic segfaults with doveadm proxy list: root@director1:~) doveadm proxy list doveadm(root): Error: LIST failed: Disconnected Segmentation fault (core dumped) Sometimes it's just the 'LIST failed' error, other times it's the error with the segfault. Usually the first attempt to call it works, subsequent attempts fail. I've attached a strace log of it in action. -- Tom Pawlowski OIT-CSS System Administrator office: Hill 147 email: tompru(a)jla.rutgers.edu phone: (732) 445-2634

2 1

[Dovecot] Syncing shared mailboxes
by Knud Dombrowsky 09 Feb '12

09 Feb '12

Hi, while trying to sync the mailboxes of several users who use and share their mailboxes dsync prints this message: dsync-local(<user-who-uses-shared-mailbox>): Warning: Subscriptions file /home/<user-who-uses-shared-mailbox>/Maildir/subscriptions: Removing invalid entry: shared/<sharing-user>/<shared-folder> The problem is: Every user has to subscribe the shared folder again after each run of dsync... Is dsync capable of syncing shared mailboxes? Are there any preliminaries to do so? thanks in advance, Knud

2 1

[Dovecot] crash on shared folders if remote user has empty $home
by Peer Heinlein 09 Feb '12

09 Feb '12

Hi, in seldom cirumstances it's possible that the imap-process is crashing without write something usefule into the logfile. a) User foo exists, is happy and everything's alright b) He had a shared folder given from bar c) In our setup we have mailforwarding adresses without a valid $home in LDAP c) if user bar is changed from a user with into a mailforwarding adress, the user foo won't have an entry for $home any more, but still exists in LDAP. d) If foo logs in, dovecot's exploring the shared folders given from the non-existing user bar. But bar's entry in LDAP doesn't have $home any more. imap crashes and closes the TCP-connection immediately. root@dobby2:/etc/dovecot# telnet xxxxxxxx 143 Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE ACL UIDPLUS STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=CRAM-MD5 AUTH=DIGEST-MD5] Dovecot ready. Testing. a LOGIN foo xxxxx a OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS ACL UIDPLUS QUOTA ACL RIGHTS=texk] Logged in a LIST "" "*" * BYE Internal error occurred. Refer to server log for more information. Connection closed by foreign host. Dec 22 21:57:41 dobby2 dovecot: master: Error: service(imap): child 18095 killed with signal 11 (core dumps disabled) e) This happens if mail_location=mdbox:%%h/mdbox is set in the shared folder namespace. If I set "mail_location=auto:" then Dovecot logs an error message, but is still possible to continue without any problems. Dec 22 21:33:59 dobby2 dovecot: imap(bar): Error: Namespace 'shared/bar/': Autodetection failed for auto: (home=/mail/foo/) -- Heinlein Professional Linux Support GmbH Linux: Akademie - Support - Hosting http://www.heinlein-support.de Tel: 030 / 40 50 51 - 0 Fax: 030 / 40 50 51 - 19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

2 2

[Dovecot] LSUB and subscribed folders
by Peer Heinlein 09 Feb '12

09 Feb '12

I have a strange behavior on a customer's server and I don't understand that: User "bar" has some folders and one shared folder from "foo" if I use the "LIST"-command, which should list AFAIK *all* folders: # telnet localhost 143 a login bar xxxx a OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS ACL RIGHTS=texk] Logged in a LIST "" "*" * LIST (\HasNoChildren) "/" "Gesendete Objekte" * LIST (\HasNoChildren) "/" "Papierkorb" * LIST (\HasNoChildren) "/" "INBOX" * LIST (\HasNoChildren) "/" "Trash" * LIST (\HasNoChildren) "/" "Entw&APw-rfe" * LIST (\HasNoChildren) "/" "Spam" * LIST (\Noselect \HasChildren) "/" "shared/foo" * LIST (\HasNoChildren) "/" "shared/foo/INBOX" a OK List completed. Using the LSUB-command, which should only list subscribed folders I can see some more shared folders. AFAIK the output of LSUB must be always less then LIST: a LSUB "" "*" * LSUB () "/" "Entw&APw-rfe" * LSUB () "/" "Gesendete Objekte" * LSUB () "/" "INBOX" * LSUB () "/" "Papierkorb" * LSUB () "/" "Spam" * LSUB () "/" "Trash" * LSUB (\Noselect) "/" "shared/amerkel" * LSUB () "/" "shared/foo/Papierkorb/Ungelesene Mails" * LSUB () "/" "shared/foo/INBOX" * LSUB () "/" "shared/foo/INBOX/abc/Unterebene 1" * LSUB () "/" "shared/foo/INBOX/abc/Unterebene 1/Test6789" * LSUB () "/" "shared/foo/INBOX/abc/Unterebene 1/Test Unterornder" * LSUB () "/" "shared/foo/INBOX/abc/Unterebene 1/Tsfgnksfgnk" a OK Lsub completed. a logout * BYE Logging out a OK Logout completed. And why is /shared/foo/INBOX listed with "HasNoChildren"? IMHO that's looking buggy. And, btw: Looks like's not possible to use the "doveadm"-command to get a list of a user's complete folder list. Maybe "doveadm mailbox" should get some extra parameters to geht all folders / only subscribe folders / only shared folders: # doveadm mailbox list -u bar Gesendete Objekte Papierkorb INBOX Trash Entwürfe Spam -- Heinlein Professional Linux Support GmbH Linux: Akademie - Support - Hosting http://www.heinlein-support.de Tel: 030/405051-42 Fax: 030/405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

3 2

[Dovecot] doveadm altmove fails to pack messages?
by Lauri Alanko 09 Feb '12

09 Feb '12

Hello again. When I use doveadm altmove, I notice that it may result in some very small storage files in either the primary or the alternate storage location. I'm not quite sure, but it almost seems like every storage file that contains messages to be moved is simply split into two parts, even if a part might only contain a single message. This seems quite curious, since the idea of mdbox is after all to store as many messages in a single file as fits in mdbox_rotate_size, and dovecot-lda can quite successfully append messages to existing storage files. So why can't doveadm altmove? Is this the expected behavior, or is there something wrong with my setup? Thanks again, Lauri

2 1

[Dovecot] force-resync fails to recover all messages in mdbox
by Lauri Alanko 09 Feb '12

09 Feb '12

To my understanding, when using mdbox, doveadm force-resync should be able to recover all the messages from the storage files alone, though of course losing all metadata except the initial delivery folder. However, this does not seem to be the case. For me, force-resync creates only partial indices that lose messages. The message contents are of course still in the storage files, but dovecot just doesn't seem to be aware of some of them after recreating the indices. Here is an example. I created a test mdbox by syncing a mailing list folder from a mbox location: $ dsync -m haskell-cafe backup mdbox:~/dbox Then I switched the location to the new mdbox: $ /usr/sbin/dovecot -n # 2.0.15: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-0.bpo.1-amd64 x86_64 Debian wheezy/sid mail_fsync = never mail_location = mdbox:~/dbox mail_plugins = zlib passdb { driver = pam } plugin { sieve = ~/etc/sieve/dovecot.sieve sieve_dir = ~/etc/sieve zlib_save = bz2 zlib_save_level = 9 } protocols = " imap" ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } protocol lda { mail_plugins = zlib sieve } Then I checked the number of messages we had in the new location: $ doveadm search all | wc 93236 186472 3625098 This was indeed the correct number, so the sync was fine: $ grep -c '^From .*..:..:.. ....$' ../mbox/haskell-cafe 93237 Then I removed all the indices and rebuilt them: $ mkdir bak $ mv mailboxes bak $ mv storage/dovecot.map.index* bak/ $ doveadm force-resync inbox doveadm(la): Warning: mdbox /home/la/dbox/storage: rebuilding indexes And what have we now: $ doveadm search all | wc 43864 87728 1699590 Somehow dovecot lost over half of the messages! This is really worrisome. It should always be possible to extract the plain mail content out from the storage, but currently it only _looks_ like it is possible: you get a problem in the indices, rebuild them, and then later migrate somewhere else. If you don't notice that you are missing mails, you may then eventually destroy the original mdbox storage files, thinking that their content is now safely elsewhere, when it really isn't. Lauri

2 3

[Dovecot] Fedora 16 configuration
by Cliff Hayes 09 Feb '12

09 Feb '12

Hello, I am trying to get dovecot to work on a fedora 16 install with sendmail. I have been able to get it to work in the past with dovecot.conf but not with the new conf.d directory and associated config files. I keep seeing this in maillog: Feb 7 14:28:59 sendmail dovecot: pop3-login: Aborted login (no auth attempts): rip=x.x.x.x, lip=x.x.x.x And the mail client comes back with username or password invalid. Is there instructions somewhere regarding fedora 16 installs? I found this one and tried it to no avail: http://www.server-world.info/en/note?os=Fedora_16&p=mail&f=2 Thanks in advance, Cliff

2 1

[Dovecot] openbsd and dovecot
by User Max 09 Feb '12

09 Feb '12

I'm setting up dovecot in OpenBSD OS. The problem is that I can't set up dovecot to use kerberos authentication via bsdauth which is "similar to pam" I try to test dovecot via telnet: telnet localhost pop3 user test +OK pass password -ERR [IN-USE] Temporary authentication failure and some strings from logs Feb 3 15:02:37 srv-mx-00 dovecot: auth: Error: bsdauth(rodin.m,127.0.0.1): getpwnam() failed: Operation not permitted Feb 3 15:02:46 srv-mx-00 dovecot: pop3-login: Disconnected (auth failed, 1 attempts): user=<rodin.m>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured Feb 3 15:29:13 srv-mx-00 dovecot: auth: Error: bsdauth(test,127.0.0.1): getpwnam() failed: Operation not permitted What am I doing wrong? Here is the output of dovecot -n auth_krb5_keytab = /etc/kerberosV/krb5.keytab auth_mechanisms = plain login default_internal_user = _dovecot default_login_user = _dovenull disable_plaintext_auth = no first_valid_gid = 2000 first_valid_uid = 2000 last_valid_gid = 2000 last_valid_uid = 2000 mail_gid = vmail mail_location = maildir:/var/vmail/%u%Ud/Maildir mail_uid = vmail mbox_write_locks = fcntl mmap_disable = yes passdb { driver = bsdauth } service auth { unix_listener /var/spool/postfix/private/auth { group = _postfix mode = 0666 user = _postfix } } ssl_cert = </etc/ssl/dovecotcert.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } userdb { args = uid=2000 gid=2000 home=/var/mail/%Lu driver = static } protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv }

3 3

[Dovecot] Slightly more intelligent way of handling issues in sdbox?
by Mark Zealey 09 Feb '12

09 Feb '12

Hi there, I was doing some testing on sdbox yesterday. Basically I did the following procedure: 1) Create new sdbox; deliver 2 messages into it (u.1, u.2) 2) Create a copy of the index file (no cache file created yet) 3) deliver another message to the mailbox (u.3) 4) copy back index file from stage (2) 5) deliver new mail Then the message delivered in stage 3 ie u.3 gets replaced with the message delivered in (5) also called u.3. Is it possible to try an open/access call on the mail file before overwriting it with the new message in case we have an issue where an older version of the index file is present (eg due to nfs latencies) ? I notice when you are expunging files you very carefully open them and read the header contents to make sure the guid is the same as in the index - any reason that this is not done when delivering? This is with lmtp on dovecot 2.0.16. I also noticed that index corruption in sdbox does not get automatically repaired. I know this is because the flags are stored in the index files so you'd get some loss of flags, but in many situations for us this auto-repair with flag loss would be better than having the mailbox locked out until we manually do a force-resync on it. (speaking of which, it would be great if force-resync also rebuilt the cache files if there are valid cache files around, rather than just doing away with them) Thanks, Mark

3 4

[Dovecot] user login on behalf of another user
by rog7993＠web.de 08 Feb '12

08 Feb '12

Hello, we are searching for a possibility to configure a user login on behalf of another user with a PAM backend. This reminds to the behavior of a master user. But a master user can access the mailboxes of all users. We need this more restricted. Example: User "user1" and "user2" shall get access to the mailbox "info". We define the accounts "info~user1" and "info~user2" with the same home directory like "info". Until now, we use a passwd-file backend. With this setup we can simply copy the password hash from "user1" to "info~user1" and from "user2" to "info~user2". But we intend to change the passdb backend from a flat file to PAM for authentication against Active Directory. This seems to be simple with pam_krb5. But then we can't simply copy password hashes anymore. Is their another possibility for configuring this? Surely the preferable alternative would be the use of ACLs to give acccess to other users mailboxes. But we started this setup with Dovecot 1.0 or 1.1. And with these versions, ACLs weren't available. And now we have too much accounts and clients, which are configured this way and can't change this for the short term. The passdb/userdb file from the above example looks like this: info:!:501:501:Info:/home/mail01/info:: info~user1:PASSWORD_USER1:501:501:Info:/home/mail01/info:: \ userdb_mail=maildir:~/Maildir: \ INDEX=/srv/dovecot/index/info: \ CONTROL=/srv/dovecot/control/info info~user2:PASSWORD_USER2:501:501:Info:/home/mail01/info:: \ userdb_mail=maildir:~/Maildir: \ INDEX=/srv/dovecot/index/info: \ CONTROL=/srv/dovecot/control/info user1:PASSWORD_USER1:501:501:Info:/home/mail01/user1:: user2:PASSWORD_USER2:501:501:Info:/home/mail01/user2:: Ingo Rogalsky

4 5

[Dovecot] Multiple userdb possible?
by Nikolaos Milas 07 Feb '12

07 Feb '12

Hello, I am running v2.0.13. In my dovecot.conf I have: userdb { args = /etc/dovecot/dovecot-usrdb-ldap.conf driver = ldap } passdb { args = /etc/dovecot/dovecot-passdb-ldap.conf driver = ldap } Is it legitimate to include multiple ldap userdb's, like: userdb { args = /etc/dovecot/dovecot-usrdb-ldap1.conf driver = ldap } passdb { args = /etc/dovecot/dovecot-passdb-ldap1.conf driver = ldap } userdb { args = /etc/dovecot/dovecot-usrdb-ldap2.conf driver = ldap } passdb { args = /etc/dovecot/dovecot-passdb-ldap2.conf driver = ldap } If it is legitimate (in case configuration is different, please correct me), in which sequence userdb's are evaluated? Thanks, Nick

2 2

[Dovecot] Configuration problem?
by Anne Wilson 07 Feb '12

07 Feb '12

I have a new Scientific Linux 6.1 mail server (dovecot -n below) and am seeing the following in the logs, with no idea what is happening: --------------------- Dovecot Begin ------------------------ Dovecot was killed, and not restarted afterwards. **Unmatched Entries** dovecot: imap(anne): Connection closed bytes=205614/894243: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=24296/89310: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=24526/76772: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=26254/75778: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=27948/134120: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=29304/116087: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=34802/914087: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=4457/11719: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=5322/184434: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=61388/106618: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=6164/21347: 1 Time(s) dovecot: imap(anne): Disconnected: Logged out bytes=7914/89868: 1 Time(s) dovecot: imap: Server shutting down. bytes=1309821/4473013: 1 Time(s) dovecot: imap: Server shutting down. bytes=14215/97371: 1 Time(s) dovecot: imap: Server shutting down. bytes=1459/9382: 1 Time(s) dovecot: imap: Server shutting down. bytes=1688/26161: 1 Time(s) dovecot: imap: Server shutting down. bytes=1705/5038: 1 Time(s) dovecot: imap: Server shutting down. bytes=3146/79269: 1 Time(s) dovecot: master: Dovecot v2.0.9 starting up (core dumps disabled): 1 Time(s) ---------------------- Dovecot End ------------------------- dovecot -n # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-131.0.15.el6.x86_64 x86_64 Scientific Linux release 6.1 (Carbon) mail_location = maildir:~/Maildir/ mbox_write_locks = fcntl passdb { driver = pam } protocols = imap ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } /etc/dovecot/dovecot.conf: - everything being defaults, as far as I can see, apart from these lines: # Protocols we want to be serving. protocols = imap listen = *, :: mail_location = maildir:~/Maildir/ maildir_copy_with_hardlinks = yes Is it really expecting an mbox file? I'm completely bogged down with this - my previous setup was fine, but the old config file doesn't work with this system. Any help and/or pointers would be greatly appreciated. Anne

2 4

[Dovecot] dsync error Mailbox has children, delete them first
by Jürgen Obermann 07 Feb '12

07 Feb '12

Hi, I use dsync to backup mailboxes from mbox format to mdbox on a remote system. The first run for a user with dsync is OK, but during the second there are lots of the following errors: dsync-remote(user): Error: Can't delete mailbox directory Example: Mailbox has children, delete them first I see no way how I could influence the order dsync deletes mailboxes. This happens with dovecot version 2.0.16 Thank you, Juergen Obermann

1 1

[Dovecot] ENVELOPE mishandling of Subject lines with quote(s)?
by Dinh Le 07 Feb '12

07 Feb '12

Hi, I am running dovecot version 1.2.9 on a Ubuntu 10.04 server. To obtain the message's header info from this dovecot imap server, I run the following imap command on a client side's imap session: . fetch 88:90 (envelope) which returns (in this case) ------------------------------------------------------------- * 88 FETCH (ENVELOPE ("Tue, 28 Oct 2008 15:45:35 -0500" "Linear Actuators Bring Flexibility to Packaging" (("Design World" NIL "subscription" "designworldonline.com")) (("Design World" NIL "subscription" "designworldonline.com")) (("Design World" NIL "subscription" "designworldonline.com")) ((NIL NIL "dinh" "flic.net")) NIL NIL NIL "<490779CF.00000E7D(a)ak119.mta.exacttarget.com>")) * 89 FETCH (ENVELOPE ("29 Oct 2008 15:44:03 -0500" {65} 2nd Edition of Brennesholtz/Stupp "Projection Displays" Available (("Insight Media" NIL "administrator" "insightmedia.info")) (("Insight Media" NIL "administrator" "insightmedia.info")) (("Insight Media" NIL "administrator" "insightmedia.info")) ((NIL NIL "dinh" "flic.net")) NIL NIL NIL "<20081029154358.0C359AE169595F1B(a)insightmedia.info>")) * 90 FETCH (ENVELOPE ("Thu, 30 Oct 2008 04:24:31 +0800 (SGT)" "6 new products Now Online!" (("Global Sources Product Alert" NIL "paservices" "globalsources.com")) (("Global Sources Product Alert" NIL "paservices" "globalsources.com")) (("Global Sources Product Alert" NIL "paservices" "globalsources.com")) (("Dinh Le" NIL "dinh" "flic.net")) NIL NIL NIL "<352725277.1225311871753.JavaMail.web(a)fuchsia3.globalsources.com>")) . OK Fetch completed. -------------------------------------------------------------- Notice that message 89's Subject line Subject: 2nd Edition of Brennesholtz/Stupp "Projection Displays" Available has quotes and this dovecot's ENVELOPE response failed to get parsed by a popular Perl module (Mail::IMAPClient::BodyStructure::Envelope). I have a hunch that this is dovecot's fault but I could be wrong. How should dovecot (or any imap server) deal with Subject lines with quotes inside ENVELOPE? ENVELOPE seems to encapsulate most of the important information and its format can be parsed cleanly and quickly. I prefer to fetch ENVELOP, at this point, rather than the other alternatives. Thanks for your help, Dinh

4 7

[Dovecot] Question about quota configuration
by przemek.orzechowski＠makolab.pl 06 Feb '12

06 Feb '12

Hi This is my first post here so i will be as precise as i can I'm trying to setup a quota system using dovecot postfix and procmail dovecot version 1.2.9 postfix version 2.7.0 I have succesfully modified dovecot config to use fs quota system (so far imap and pop3) It reports correct quotas to imap and pop3 clients (both user and group) What im tryin to do now is to modify postfix->procmail->dovecot config in a way that if user is over quota mail delivery is delayed instead of bouncing. (is this possible?) Second thing i would like to achive is that when authenticated users close to quota/group quota for example 10MB to quota limit try sending email theyr mail is rejected and preferably an email is generated telling them to free some space for new mails first. (is such a thing possible?) MS Exchange servers have such a feature and I would like to get such a functionality on my linux mailserver I'm trying to prevent a situation when mails are lost due to quota problems. This setup was initially a typical virtualmin installation with a system on single partition. Thanks in advance for all Your suggestions

7 8

[Dovecot] dovecot-antispam 1.3 and dovecot 1.2.17 fails with spool2dir
by Benny Pedersen 06 Feb '12

06 Feb '12

or have i missed something in compile or configure in dovecot.conf ? running on gentoo so i can compile if need another option, i just like to have it working so each user can train bayes global db no matter what user agent users using

1 0

[Dovecot] doveadm purge on shared storage
by Jan-Frode Myklebust 06 Feb '12

06 Feb '12

We've finally (!) started to put some users on mdbox instead of maildir, and now I'm wondering about the purge step. As we're running GPFS for the mailboxes (and dovecot director in front of every dovecot service), is it important to run the "doveadm purge -u $user" on the same host as $user is logged into to avoid index corruption ? If so, will we need to run the "doveadm purge" trough the dovecot director as well? -jf

2 1

Re: [Dovecot] Sieve notify messages
by Stephan Bosch 05 Feb '12

05 Feb '12

On 2/5/2012 4:57 PM, Andreas Muehlemann wrote: > Hi Stephan > > Thank you very much, the encodeurl and ?body= are the trick! > For posterity, please reply to the mailing list as well, especially when it is a success message ;) Regards, Stephan. > > On 02/05/2012 04:46 PM, Stephan Bosch wrote: >> On 2/5/2012 4:00 PM, Andreas Muehlemann wrote: >>> Hi All >>> >>> I'm using dovecot 2.0.16 with the pigeonhole plugin 0.25. >>> >>> I'm trying to use the notifiy mechanism from sieve to send >>> notifications when a mail arrives in the mailbox. The message is >>> checked to be a 8bit message, otherwise it is replaced by the >>> default message "Notification of new message." How can I create a >>> 8bit message body within the sieve script that is accepted by the >>> notification process? >>> >>> e.g. >>> notify >>> :message "Subject: ${subject}" >>> "mailto:email@domain.com"; >>> >>> Do I have to put the message body into the :message string? Or how >>> can I define a custom message body that is accepted by notify? >> >> If I understand you correctly, the following should be the solution >> for your issue: >> >> <SCRIPT> >> require "enotify"; >> require "variables"; >> require "encoded-character"; >> >> # Percent-encode the UTF-8 message >> # (I'm using encoded-character here, but you can use UTF8 directly of >> course) >> set :encodeurl "message" "In ${unicode:d6}sterreich m${unicode:e4}ht >> Herr M${unicode:fc}ller seinen Rasen ${unicode:fc}brigens auch >> ${unicode:fc}ber dem Durchschnitt schnell."; >> >> # Send the notification >> notify :message "Herr M${unicode:fc}ller m${unicode:e4}ht seinen >> Rasen" "mailto:user@example.com?body=${message}"; >> </SCRIPT> >> >> This sends the following message: >> >> <MESSAGE> >> X-Sieve: Pigeonhole Sieve 0.3.0 >> Message-ID: <dovecot-sieve-1328456217-863910-0(a)host.example.com> >> Date: Sun, 05 Feb 2012 16:36:57 +0100 >> Subject: Herr =?utf-8?q?M=C3=BCller_m=C3=A4ht?= seinen Rasen >> From: Postmaster <postmaster(a)example.com> >> To: user(a)example.com >> Auto-Submitted: auto-notified; >> owner-email="234234234234(a)ext2.domain.tld" >> Precedence: bulk >> X-Priority: 3 (Normal) >> Importance: Normal >> MIME-Version: 1.0 >> Content-Type: text/plain; charset=UTF-8 >> Content-Transfer-Encoding: 8bit >> >> In Österreich mäht Herr Müller seinen Rasen übrigens auch über dem >> Durchschnitt schnell. >> </MESSAGE> >> >> Regards, >> >> Stephan >

1 0

[Dovecot] Sieve notify messages
by Andreas Muehlemann 05 Feb '12

05 Feb '12

Hi All I'm using dovecot 2.0.16 with the pigeonhole plugin 0.25. I'm trying to use the notifiy mechanism from sieve to send notifications when a mail arrives in the mailbox. The message is checked to be a 8bit message, otherwise it is replaced by the default message "Notification of new message." How can I create a 8bit message body within the sieve script that is accepted by the notification process? e.g. notify :message "Subject: ${subject}" "mailto:email@domain.com"; Do I have to put the message body into the :message string? Or how can I define a custom message body that is accepted by notify? Best regards Andreas

2 1

[Dovecot] What does this /var/log/maillog message means?
by Andre Lopes 04 Feb '12

04 Feb '12

Hi, I'm, trying to configure Devcot(2.0.9). Here is my dovecot.conf: [code] protocols = imap pop3 lmtp log_timestamp = "%Y-%m-%d %H:%M:%S " mail_location = maildir:/home/vmail/%d/%n/Maildir ssl_cert = /etc/pki/dovecot/certs/dovecot.pem ssl_key = /etc/pki/dovecot/private/dovecot.pem namespace { type = private separator = . prefix = INBOX. inbox = yes } protocol lda { log_path = /home/vmail/dovecot-deliver.log auth_socket_path = /var/run/dovecot/auth-master postmaster_address = postmaster(a)mailserver.com } service auth { user = root } passdb { driver = sql args = /etc/dovecot/dovecot-sql.conf } userdb { driver = static args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes } [/code] I can start the service correctly: [code] [root@mailserver dovecot]# service dovecot start Starting Dovecot Imap: [ OK ] [/code] But when I go to "/var/log/maillog" I get this: [code] Feb 3 14:37:59 www dovecot: master: Warning: Killed with signal 15 (by pid=16757 uid=0 code=kill) Feb 3 14:38:03 www dovecot: master: Dovecot v2.0.9 starting up (core dumps disabled) [/code] What does this mean? I'm doing something that is not correct? Best Regards,

2 1

[Dovecot] Managesieve Build failure
by Ralf Hildebrandt 04 Feb '12

04 Feb '12

I pulled the recent dovecot-2.0-pigeonhole and dovecot 2.0.x trees and rebuild, got this error today: ... make[3]: Leaving directory /usr/src/dovecot-2.0/dovecot-2.0-pigeonhole/src/managesieve' make[2]: Leaving directory /usr/src/dovecot-2.0/dovecot-2.0-pigeonhole/src/managesieve' Making install in managesieve-login make[2]: Entering directory /usr/src/dovecot-2.0/dovecot-2.0-pigeonhole/src/managesieve-login' /bin/bash ../../libtool --tag=CC --mode=link gcc -I/usr/src/dovecot-2.0/dovecot-2.0/src/config -DPKG_LIBEXECDIR=\""/usr/local/libexec/dovecot"\" -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -Wstrict-aliasing=2 -module -avoid-version -g -Wl,--as-needed -o libmanagesieve_login_settings.la -rpath /usr/local/lib/dovecot/settings libmanagesieve_login_settings_la-managesieve-login-settings.lo libmanagesieve_login_settings_la-managesieve-login-settings-plugin.lo -lrt gcc -DHAVE_CONFIG_H -I. -I../.. -I/usr/src/dovecot-2.0/dovecot-2.0 -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-dict -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-dns -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-mail -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-imap -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-fs -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-charset -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-index -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-storage -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-storage/index -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-storage/index/raw -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-master -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-settings -I/usr/src/dovecot-2.0/dovecot-2.0/src/lib-auth -I/usr/src/dovecot-2.0/dovecot-2.0/src/login-common -I../.. -I../../src/lib-managesieve -g -Wl,--as-needed -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -Wstrict-aliasing=2 -MT managesieve-proxy.o -MD -MP -MF .deps/managesieve-proxy.Tpo -c -o managesieve-proxy.o managesieve-proxy.c managesieve-proxy.c: In function ‘managesieve_proxy_parse_line’: managesieve-proxy.c:334:19: error: ‘const struct login_settings’ has no member named ‘verbose_auth’ make[2]: *** [managesieve-proxy.o] Error 1 -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt(a)charite.de | http://www.charite.de

2 1

[Dovecot] Vacation via database
by list＠airstreamcomm.net 04 Feb '12

04 Feb '12

We are moving our inbound mail to use dovecot LMTP in the near future and we are looking for suggestions on how to implement a mysql based vacation system. If anyone has experience with this, good or bad please let us know.

5 6

[Dovecot] LDAP auth improvements
by Timo Sirainen 03 Feb '12

03 Feb '12

v2.1 supports now multiple LDAP fields in a template e.g.: user_attrs = \ homeDirectory=home, \ uidNumber=uid, \ gidNumber=gid, \ =mail=%{ldap:mailboxFormat}:%{ldap:homeDirectory} which is the same as: user_attrs = \ =home=%{ldap:homeDirectory}, \ =uid=%{ldap:uidNumber}, \ =gid=%{ldap:gidNumber}, \ =mail=%{ldap:mailboxFormat}:%{ldap:homeDirectory} I was also thinking about adding an alternative simplified syntax for this: user_attrs { home = %{ldap:homeDirectory} uid = %{ldap:uidNumber} gid = %{ldap:gidNumber} mail = %{ldap:mailboxFormat}:%{ldap:homeDirectory} } Any ideas for further improvements before I do this change? One thing I'm still wondering about is what I should do when LDAP returns multiple values. Like perhaps: acl_groups = %{ldap:aclGroups:,} Which would mean that all the aclGroups values would be joined together separated by "," characters. And a bit more complex with multiple gidNumbers: gid = %{ldap:gidNumber[0]} mail_access_groups = %{ldap:gidNumber[1:]:,}

2 1

[Dovecot] Errors starting Dovecot
by Andre Lopes 03 Feb '12

03 Feb '12

Hi, I'm new to Dovecot. I'm trying to start Dovecot(2.0.9) but I'm getting an error. I think the error is because I'm doing a tutorial for an old version of Devcot(1.x.x). What I get is the following: [code] [root@mailserver dovecot]# service dovecot start Starting Dovecot Imap: doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -n > dovecot-new.conf doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:1: protocols=imaps is no longer necessary, remove it doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:1: protocols=pop3s is no longer necessary, remove it doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:5: ssl_cert_file has been replaced by ssl_cert = <file doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:6: ssl_key_file has been replaced by ssl_key = <file doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:8: namespace private {} has been replaced by namespace { type=private } doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:24: add auth_ prefix to all settings inside auth {} and remove the auth {} section completely doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:25: auth_user has been replaced by service auth { user } doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:27: passdb sql {} has been replaced by passdb { driver=sql } doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:31: userdb static {} has been replaced by userdb { driver=static } [ OK ] [/code] My dovecot.conf have the following: [code] protocols = imap imaps pop3 pop3s log_timestamp = "%Y-%m-%d %H:%M:%S " mail_location = maildir:/home/vmail/%d/%n/Maildir ssl_cert_file = /etc/pki/dovecot/certs/dovecot.pem ssl_key_file = /etc/pki/dovecot/private/dovecot.pem namespace private { separator = . prefix = INBOX. inbox = yes } protocol lda { log_path = /home/vmail/dovecot-deliver.log auth_socket_path = /var/run/dovecot/auth-master postmaster_address = postmaster(a)example.com } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } auth default { user = root passdb sql { args = /etc/dovecot-sql.conf } userdb static { args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes } socket listen { master { path = /var/run/dovecot/auth-master mode = 0600 user = vmail } client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } } } [/code] Any clues on how can I adapt this configuration file to Dovecot 2.0.9? Best Regards,

1 0

[Dovecot] Doubts about dsync, mdbox, SIS
by Jan-Frode Myklebust 03 Feb '12

03 Feb '12

I've been running continous dsync backups of our Maildirs for a few weeks now, with the destination dsync server using mdbox and SIS. The idea was that the destination server would act as a warm copy of all our active users data. The active servers are using Maildir, and has: $ df -h /usr/local/atmail/users/ Filesystem Size Used Avail Use% Mounted on /dev/atmailusers 14T 12T 2.2T 85% /usr/local/atmail/users $ df -hi /usr/local/atmail/users/ Filesystem Inodes IUsed IFree IUse% Mounted on /dev/atmailusers 145M 113M 33M 78% /usr/local/atmail/users very little of this is compressed (zlib plugin enabled during christmas). I'm surprised that the destination server is so large, was expecting zlib and mdbox and SIS would compress it down to much less than what we're seeing (12TB -> 5TB): $ df -h /srv/mailbackup Filesystem Size Used Avail Use% Mounted on /dev/mapper/mailbackupvg-mailbackuplv 5.7T 4.8T 882G 85% /srv/mailbackup Lots and lots of the attachement storage is duplicated into identical files, instead of hard linked. When running "doveadm purge -u $user", we're seeing lots of Error: unlink(/srv/mailbackup/attachments/c3/17/c317b32b97688c16859956f11b803e3bba434349-057274283bb51f4f917e0000bf34f6ab) failed: No such file or directory "/srv/mailbackup/attachments/c3/17/c317b32b97688c16859956f11b803e3bba434349-057274283bb51f4f917e0000bf34f6ab" is missing, but there are 205 other copies of this file named /srv/mailbackup/attachments/c3/17/c317b32b97688c16859956f11b803e3bba434349-* with identical sha1sum. Also we see corrupted indexes during the purge. This makes me quite uncertain if dsync is a workable backup solution.. or if we can trust mdboxes. Also on the source side, during dsync, we see too many problems. Some samples: Error: Mailboxes don't have unique GUIDs: 08b46439069d3d4db0490000e671bf84 is shared by INBOX and INBOX Error: command BOX-LIST failed Error: Worker server's mailbox iteration failed Error: read() from worker server failed: EOF Error: Failed to sync mailbox INBOX.ferie 2006.: Invalid mailbox name Error: read() from proxy client failed: EOF Error: Unexpected finish reply: 1 596fec275888dbd89f6d1f5356c22db6 3720 0 \dsync-expunged 0 Error: Unexpected reply from server: 1 12200572a70726fca946da6f9378dc03 3721 0 \dsync-expunged 0 Error: Failed to sync mailbox INBOX.INBOX.Gerda: Mailbox doesn't exist: INBOX/Gerda Error: command BOX-LIST failed Error: read() failed: Broken pipe Panic: file dsync-worker-local.c: line 1678 (local_worker_save_msg_continue): assertion failed: (ret == -1) Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0 [0x367703c680] -> /usr/lib64/dovecot/libdovecot.so.0(default_fatal_handler+0x35) [0x367703c765] -> /usr/lib64/dovecot/libdovecot.so.0 [0x367703bb93] -> /usr/bin/dsync [0x40f48d] -> /usr/bin/dsync [0x40f589] -> /usr/bin/dsync(dsync_worker_msg_save+0x8e) [0x40eb3e] -> /usr/bin/dsync [0x40d71a] -> /usr/bin/dsync [0x40cdbf] -> /usr/bin/dsync [0x40d105] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x48) [0x3677047278] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0xd5) [0x36770485c5] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x2d) [0x367704720d] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x3677035a83] -> /usr/bin/dsync(main+0x71e) [0x406c4e] -> /lib64/libc.so.6(__libc_start_main+0xf4) [0x3e3941d994] -> /usr/bin/dsync [0x406369] Do you have any idea for what our problems might be? Should we: avoid SIS ? avoid doing Maildir on one side and mdbox on the other? try other dovecot version for dsync? anything else? -jf ------------- destination server, running dovecot v2.0.14 -------- mail_attachment_dir = /srv/mailbackup/attachments mail_location = mdbox:~/mdbox mail_plugins = zlib mdbox_rotate_size = 5 M namespace { inbox = yes location = prefix = INBOX. separator = . type = private } passdb { driver = static } plugin { zlib_save = gz zlib_save_level = 9 } protocols = service auth-worker { user = $default_internal_user } service auth { unix_listener auth-userdb { mode = 0600 user = mailbackup } } ssl = no userdb { args = home=/srv/mailbackup/%256Hu/%d/%n driver = static } -------------/destination server -------- -jf

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[Dovecot] Feature request - search and tag protocol - notmuch-alike approach
by Kirill A. Shutemov 03 Feb '12

03 Feb '12

Hi all, notmuch[1] becomes more and more popular. At least in geek community. But notmuch is local-only (except ssh)... It looks like it's hard (if even possible) to use IMAP as transport for notmuch-alike work flow. I think it would be great to create a new protocol based global search and message tagging. All core notmuch operations (search, show, count, tag) can be mapped to the new protocol (more or less) directly. Search syntax can be reused as is, I think. The tricky part is initial tagging. It requires some kind of transaction to be able to tag new messages without racing with upcoming messages. Request (command) syntax can be similar to unix command. This way we can reuse notmuch syntax even deeper. Like: search --limit 10 --sort=oldest-first tag:to-me tag:unread Replies are often structured. I think it's reasonable to use JSON for all replies. Any ideas? I've started to write a proof-of-concept, but it moves too slow, since my knowledge of dovecot internals is poor and it's hard to find time for the project. I hope somebody else has similar idea in mind and just wait opportunity to discuss the idea and start to write code. ;) [1] http://notmuchmail.org/ -- Kirill A. Shutemov

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[Dovecot] converting from mbox to maildir ?
by Frank Bonnet 02 Feb '12

02 Feb '12

Hello We are planning to convert our mailhub ( freebsd 7.4 ) from mbox format to maildir format. I've read the documentation and performed some tests on another machine it is a bit long ... I would like some feedback from guys who did this operation and need some advice on what to convert first ? - first convert INBOX then convert IMAP folders ? - first convert IMAP folders then convert INBOX ? the machine use real users thru openldap ( pam_ldap + nss_ldap ) another problem is disk space. The users's email data takes about 2 Terabytes of data and I cannot duplicate as I only have 3 Tb on the raid array of the server. My idea is to use one of our NFS netapp filer during the convertion to throw the result of the convertion on an NFS mounted directory. Anyone did this before ? If yes I would be greatly interrested by their experience Thank you

2 6

[Dovecot] locking problem
by myron 02 Feb '12

02 Feb '12

I have one user who can't read his e-mail. The /var/log/mail.log file has this statement. dovecot: IMAP(<user>): Timeout while waiting for lock for transaction log file /users/<user>/mail/.imap/INBOX/dovecot.index.log I tried killing the imap daemons and removing the lock file, but it keeps coming back. Any idea what else to do? This is the dovecot file: dovecot -n # 1.2.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-28-server x86_64 Ubuntu 10.04.3 LTS log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps pop3 pop3s ssl_cert_file: /etc/ssl/certs/ssl-cert-snakeoil.pem ssl_key_file: /etc/ssl/private/ssl-cert-snakeoil.key disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login mail_privileged_group: mail mail_location: mbox:~/mail:INBOX=/var/mail/%u mbox_write_locks: fcntl dotlock mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 auth default: mechanisms: plain login passdb: driver: pam userdb: driver: passwd socket: type: listen client: path: /var/spool/postfix/private/auth-client mode: 432 user: postfix group: postfix --myron ================================= Myron Kowalski MoCoSIN Network/Systems Administrator Moravian College myron(a)moravian.edu (610) 861-1441

2 4

[Dovecot] Renaming user account / mailbox
by Nikolaos Milas 02 Feb '12

02 Feb '12

Hello, I am running dovecot-2.0.13-1_128.el5 x86_64 RPM on CentOS 5.7. All accounts are virtual, hosted on LDAP Server. We are using Maildir mailboxes. The question: What is the process to rename an existing account/mailbox? I would like to rename userx with email: userx(a)example.com to ux(a)example.com with a mailbox of ux (currently: userx) Of course the idea is that new mail will continue to be delivered to the same mailbox, although it has been renamed. How can I achieve it? Would it be enough (after changing the associated data in the associated LDAP entry) to simply rename the virtual user directory name, e.g. from /home/vmail/userx to /home/vmail/ux ? Thanks in advance, Nick

2 2

[Dovecot] Site-wide configurable Sieve
by Gedalya 01 Feb '12

01 Feb '12

Hi, I need some sieve actions to be specified per-user, but exposing actual sieve scripts to users is of the question. For example, I need to be able to either put spam messages into a spam folder, or discard them, based on user preference. Presumably this would be done using Sieve. As I understand, it's not possible to query a database from within a sieve script. If I can't use a single global script, I can imagine automatically generating per-user scripts when settings are saved in a GUI (e.g. webmail) and store them on the dovecot machine. This would work but I would love to hear if someone has a smarter, more robust idea. Thanks, Gedalya

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