- dovecot - dovecot.org

[Dovecot] 1.0rc10 proxy memory usage problem
by Laurent Papier 07 Nov '06

07 Nov '06

Hi, I have a rather large dovecot setup (4 proxy only servers and 21 IMAP/POP3 servers) in production for 3 days now. The memory usage on my proxy servers only grows over time. It looks like a memory leak somewhere in dovecot. I have a RRD graph available on demand. Any advise on the configuration ? Timo, I have strace a process before the manual restart. If it can help just ask for. My configuration : Linux kernel 2.6. I use MySQL as authentication back-end. # dovecot --version 1.0.rc10 # dovecot --build-options Build options: ioloop=epoll notify=dnotify ipv6 openssl SQL drivers: mysql Passdb: checkpassword pam passwd passwd-file shadow sql Userdb: checkpassword passwd prefetch passwd-file sql static ----- config ----- protocols = pop3 imap disable_plaintext_auth = no ssl_disable = yes login_process_size = 128 login_process_per_connection = no login_processes_count = 16 login_max_connections = 512 login_greeting = ready auth_cache_size = 32768 auth_cache_ttl = 1800 auth_worker_max_count = 30 auth default { mechanisms = plain # Userdb settings are not used with proxy but there need to be something. userdb static { args = static uid=5000 gid=5000 home=/dev/null } passdb sql { args = /etc/dovecot-mysql.conf } user = root count = 1 } -- Laurent Papier

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[Dovecot] Dovecot-ldap doesnt reconnect if openldap restarts
by Peter Nixon 07 Nov '06

07 Nov '06

Hi Guys I have recently migrated an existing courier install to dovecot + openldap and think dovecot is wonderfull. Great work! However, I am seeing that dovecot-ldap doesnt reconnect if openldap restarts. Is there an options I am missing or is this a know problem?As I am using dovecot for sasl with postfix and pop/imap this basically completely stops my mail sytem... Thanks in Advance -- Peter Nixon http://www.peternixon.net/ PGP Key: http://www.peternixon.net/public.asc

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[Dovecot] move the message between folder problem with quota.
by Antonio Casado Rodríguez 07 Nov '06

07 Nov '06

Hi, i have dovecot 1.0rc12, postfix, RedHat Enterprise Linux ES 4.0 Update 4. IMAP client Thunderbird 1.5.0.7 Only namespace: namespace private { separator = / inbox = yes prefix = location = maildir:~/Maildir/ } When the quota limit is near... more maildirsize 5242880S 0 0 2688058 1 1993336 1 ... if i move the message betweeen foders, dovecot say: quota exceeded. Is this a error? If i delete the message (trash folder), it not work too. would not have to work as Maildir++ specification says? http://www.inter7.com/courierimap/README.maildirquota.html (Reading from a Maildir++) Thanks a lot.

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[Dovecot] rc12 dovecot-auth core dump with ldap
by Chris Wakelin 07 Nov '06

07 Nov '06

Hi, I've got a core dump during initialisation when I use 1.0.rc12 and LDAP with authenticated binds in Solaris. It worked OK in 1.0.rc10. Here's the non-commented entries in dovecot-ldap.conf - some of which are probably redundant :) :- hosts = xxx.yyy.rdg.ac.uk auth_bind = yes auth_bind_userdn = "cn=%n,cn=users,dc=xxx,dc=yyy,dc=rdg,dc=ac,dc=uk" ldap_version = 3 base = "dc=xxx,dc=yyy,dc=rdg,dc=ac,dc=uk" deref = never scope = subtree user_filter = (&(objectClass=User)(sAMAccountName=%n)) pass_filter = (&(objectClass=User)(sAMAccountName=%n)) Strangely, it crashes in a different place when I don't define the scope, so I'm guessing it's something to do with reading parameters. backtrace with "scope = subtree" : #0 0x1ec94 in db_ldap_init ( config_path=0x5bc08 "/opt/RDGdovect/etc/dovecot-ldap.conf") at db-ldap.c:661 661 if (*conn->set.user_global_gid == '\0') (gdb) bt #0 0x1ec94 in db_ldap_init ( config_path=0x5bc08 "/opt/RDGdovect/etc/dovecot-ldap.conf") at db-ldap.c:661 #1 0x246e8 in passdb_ldap_preinit (auth_passdb=0x5bbe8, args=0x5bc08 "/opt/RDGdovect/etc/dovecot-ldap.conf") at passdb-ldap.c:486 #2 0x2328c in passdb_preinit (auth=0x5b838, driver=0xffbefec0 "ldap", args=0x0, id=332176) at passdb.c:169 #3 0x17648 in auth_preinit () at auth.c:45 #4 0x1ff0c in drop_privileges () at main.c:195 #5 0x2024c in main (argc=0, argv=0xffbefb54) at main.c:319 and with scope left commented out: #0 0xff0cf600 in strcasecmp () from /usr/lib/libc.so.1 (gdb) bt #0 0xff0cf600 in strcasecmp () from /usr/lib/libc.so.1 #1 0x1df58 in scope2str (str=0x0) at db-ldap.c:116 #2 0x1ec4c in db_ldap_init ( config_path=0x5bc08 "/opt/RDGdovect/etc/dovecot-ldap.conf") at db-ldap.c:648 #3 0x246e8 in passdb_ldap_preinit (auth_passdb=0x5bbe8, args=0x5bc08 "/opt/RDGdovect/etc/dovecot-ldap.conf") at passdb-ldap.c:486 #4 0x2328c in passdb_preinit (auth=0x5b838, driver=0xffbefec0 "ldap", args=0x0, id=332176) at passdb.c:169 #5 0x17648 in auth_preinit () at auth.c:45 #6 0x1ff0c in drop_privileges () at main.c:195 #7 0x2024c in main (argc=0, argv=0xffbefb54) at main.c:319 If I don't define "deref" then I get an error in the dovecot log (but no crash) :- dovecot: Nov 07 12:36:45 Error: auth(default): LDAP: Unknown deref option 'subtree' I'll keep digging and see if I can find the cause, but has anybody else seen this? Chris -- --+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+- Christopher Wakelin, c.d.wakelin(a)reading.ac.uk IT Services Centre, The University of Reading, Tel: +44 (0)118 378 8439 Whiteknights, Reading, RG6 2AF, UK Fax: +44 (0)118 975 3094

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[Dovecot] suspected bug in dovecot-ldap setup?
by Pedro Venda 07 Nov '06

07 Nov '06

Hi everyone, [first post: long and boring. beware!] I've been working on a virtual multidomain MX server with pop3 access. Accounting for users/domains is done via OpenLDAP with the Jamm[1] schema and dovecot is 1.0rc10 (dovecot-1.0-0_27.rc10.el4.at fetched as RPM from atrpms.net for CentOS 4.4). I intended to have authenticated binds but there was a problem with the user_filter directive being ignored: user_filter = (&(objectClass=JammMailAccount)(mail=%n@%d)(accountActive=TRUE) (delete=FALSE)) dovecot: Oct 26 16:20:58 Info: auth(default): client in: AUTH 1 PLAIN service=IMAP secured lip=::ffff:192.168.0.5 rip=::ffff:192.168.0.69 resp=<hidden> dovecot: Oct 26 16:20:58 Info: auth(default): ldap(dave@info.test,::ffff:192.168.0.69): bind search: base=o=hosting,dc=example,dc=com scope=subtree filter= **(&(objectClass=posixAccount(uid=dave(a)info.test))** dovecot: Oct 26 16:20:58 Info: auth(default): ldap(dave@info.test,::ffff:192.168.0.69): unknown user dovecot: Oct 26 16:20:59 Info: auth(default): client out: FAIL 1 user=dave(a)info.test dovecot: Oct 26 16:20:59 Info: imap-login: Disconnected: user=<dave(a)info.test>, method=PLAIN, rip=::ffff:192.168.0.69, lip=::ffff:192.168.0.5, TLS (nevermind the data, it's test only) As you can see from the info file, the search filter used was being (&(objectClass=posixAccount(uid=dave(a)info.test)) and not (&(objectClass=JammMailAccount)(mail=dave(a)info.test)(accountActive=TRUE) (delete=FALSE)). I sorted this out by trying to enable auth_bind_userdn: auth_bind_userdn = mail=%n@%d,jvd=%d,o=hosting,dc=example,dc=com Now, the login worked well and the debug info is as follows: dovecot: Oct 27 12:01:48 Info: auth(default): client in: AUTH 1 PLAIN service=IMAP lip=::ffff:192.168.0.5 rip=::ffff:192.168.0.69 resp=AGRhdmVAaW5mb y50ZXN0AFRlbXAuMTIz dovecot: Oct 27 12:01:48 Info: auth(default): client out: OK 1 user=dave(a)info.test dovecot: Oct 27 12:01:48 Info: auth(default): master in: REQUEST 1 10634 1 dovecot: Oct 27 12:01:48 Info: auth(default): ldap(dave@info.test,::ffff:192.168.0.69): base=o=hosting,dc=example,dc=com scope=subtree filter=(&(objectClass=JammMailAccount)(mail=dave(a)info.test) (accountActive=TRUE)(delete=FALSE)) fields=mailbox dovecot: Oct 27 12:01:48 Info: auth(default): master out: USER 1 dave(a)info.test mail=info.test/dave/ uid=5000 gid=5000 (nevermind the debug data, passwords, etc. it's test only) In this case, the search filter is ok: (&(objectClass=JammMailAccount)(mail=dave(a)info.test)(accountActive=TRUE) (delete=FALSE)) So aparently, the auth_bind_userdn directive that supposedly adds a performance gain by sparing one bind request, seems to interfere with the user_filter directive. I suspect this might be a bug, so here's my report. Is this a new issue? Thanks for surviving this far through this post, Best regards, Pedro Venda. [1]: [Java Mail Manager]: web applications to manage virtual email account information stored in an LDAP directory. (http://jamm.sourceforge.net) -- Pedro João Lopes Venda email: pjvenda at pjvenda org http://www.pjvenda.org

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[Dovecot] Store outgoing mail in users mailbox
by Mark Ruys 07 Nov '06

07 Nov '06

This might be a MTA question, but because I use Dovecot as an LDA, maybe some can help me here. Our users would like that outgoing mail is automatically saved in some folder, say Sent. We use Postfix with virtual domains, Maildir and Dovecot+Sieve as LDA. Outgoing mail is relayed by our imap-server (with authentification of course, no open relay). Most people seem to advice Postfix sender_bcc_maps and Dovecot's deliver with the -m argument. But I can't get it work. I tried: In master.cf: dovecot-archive unix - n n - - pipe flags=DRhu user=mailowner:mailowner argv=/usr/libexec/dovecot/deliver -d ${recipient} -m Sent In main.cf: sender_bcc_maps = hash:/etc/postfix/sender_bcc_map In sender_bcc_map: tester(a)ruijs.cc dovecot-archive: But that doesn't work. It looks like "dovecot-archive:" should be a real email address, not a transport (this give an idea of my Postfix knowledge ;). Then I tried: In sender_bcc_map: tester(a)ruijs.cc tester+archive(a)ruijs.cc But I don't think Dovecot's LDA supports plus addressing. So my question is, has anyone here done a similar thing in a similar setting. If so, how did you configure it. Thans, Mark Oudenhof 14b, 4191 NW Geldermalsen, The Netherlands Web site and travel directions: www.in2sports.net Phone +31.345.473699 :: Mobile +31.6.51298623

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[Dovecot] Upgrade from RC7 to RC10 didn't go too well...
by Ivo Truxa 06 Nov '06

06 Nov '06

I have the same problem after upgrading to RC10. Did you find a solution? Should I update to RC11 or rather downgrade back to an earlier version? Thanks, Ivo Truxa >>>>>>> original message >>>>>>> Hi, On the weekend I tried to upgrade from RC7 to RC10. Clearly, I have to change some things before I can do this. What does it take to get to RC10? As is, my mail client got an error trying to list messages in /INBOX (via IMAP) and the mail.err log shows the following messages: Oct 29 10:27:32 siona dovecot: IMAP(archangel): open(/var/mail/archangel/inbox, O_CREAT) failed: Not a directory Oct 29 10:27:32 siona dovecot: IMAP(archangel): mkdir_parents(/var/mail/archangel/.imap/INBOX) failed: Not a directory Oct 29 10:27:32 siona dovecot: IMAP(archangel): open() failed with subscription file /var/mail/archangel/.subscriptions: Not a directory My dovecot.conf includes default_mail_env = mbox:/var/mail/%u And other then enabling SSL, I've got a pretty vanilla configuration (e.g. nothing in the IMAP section at all, no odd namespaces...) /var/mail/archangel is an mbox file, why is dovecot trying to open files under there? I know at least part of the discussion has happened on the list before so I'm sorry for duplicating other questions. My TODO is about ten km long so I hope someone can at least give me a couple good pointers. Thanks in advance! -- Dominic Lepiane The IRMACS Centre

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[Dovecot] v1.0 plans, rc11 tomorrow
by Timo Sirainen 06 Nov '06

06 Nov '06

As you can probably guess from my today's burst of activity, I'm no longer extremely busy. Actually it looks like for the next 3-4 weeks I don't have anything especially time consuming to do. So it's time to get Dovecot v1.0 released :) I've now read all the mails from this list again, and it looks like pretty much the only problems with rc10 was the mbox assert crash, which is now fixed. My TODO contains: v1.0 blocker: - inetd logins are broken? I should look more into this.. I only remembered this just now while writing this mail. New non-v1.0 blockers: - trash plugin is apparently broken? - mbox_min_index_size != 0 causes Invalid new transaction log sequence (4 >= 4) The old preferrably-fixed-for-v1.0 items are: - ldap auth is leaking memory? maybe not, maybe it's something else. - master leaks log fds with kqueue. I don't have a machine to test this on. Could someone give me an account in some BSD system for a while to test this? Anyway, I'll most likely release rc11 tomorrow, but it would be nice if you tested today's CVS snapshot already to see if I accidentally broke something. :) http://dovecot.org/nightly/dovecot-latest.tar.gz Oh and one thing that I wanted for Dovecot v1.0 was nice documentation. I think the current wiki is a bit chaotic. I started http://wiki.dovecot.org/NewIndex a long time ago. Maybe I should finish it finally and put it as the new main index..

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[Dovecot] Auto-expire messages in a folder
by Mike Cisar 05 Nov '06

05 Nov '06

I have a Fedora 5 server running Dovecot (currently 1.0 rc10). The spam filter (amavis) automatically tags email (using plussed addressing) such that messages flagged as spam are sorted into a "spambox" folder by procmail. Seemed like a good idea at the time, but because of some legacy issues with filesystem quota also being in place, combined with most users connecting with POP3 rather than IMAP... spam doesn't stay in their inbox, they don't check their spambox and they are very quickly over quota. What I would like to do is stick with the "spambox" folder idea, but have any messages in that folder which are older than a certain number of days deleted automatically. Could this be done by Dovecot? If so how would dovecot know to visit all the user's mailboxes to do it... or would it only be able to do so when a user logged in via IMAP (as opposed to POP3)? If not, is anyone aware of a script that I could run in nightly maintenance to do a cleanup pass on all the mailboxes? I know there are any number of ways that this could be accomplished but I would like to do it as much within my existing framework as possible... sendmail/procmail/amavis on the delivery side, dovecot in the middle, horde/imp for webmail and whatever email client the end users have (likely Outlook/Outlook Express for the most part)... all pretty generic, standard mailbox formats... nothing fancy like data stored in mySQL or anything like that. As everyone encounters, the more parts you change, the more other parts you have to fix to be compatible with the changes :-) Obviously I would like the solution to also be as feature rich as I can at the same time (might as well wish for it all right :-). Maybe for the sake of the POP3 folks it would also be nice to generate a once-daily email with the names, subjects of the messages in the folder saying "here's what is in your spam folder, please log in to webmail to manage your spam" (and in a perfect world some sort of link to click on which could move the message from the spambox back into the inbox). Does anyone have any solutions they can share that run within a similar framework to what I have set up? The thing that I need in the immediate term is to purge the spam folder automatically, the mid-term goal is to evolve that into a sort of spam-processing center/solution for the users. Thanks for any suggestions! Cheers, >>>>> Mike <<<<<

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[Dovecot] ~/.maildir preferable to %h/Maildir and ~/Maildir?
by Jeff Kowalczyk 05 Nov '06

05 Nov '06

I have a recently deployed dovecot server and am readying another. Upon updating to rc12, I note the following change in the default dovecot.conf file: -default_mail_env = mbox:/var/spool/mail/%u:INDEX=/var/dovecot/%u +mail_location = maildir:~/.maildir Integrating this change to my local dovecot.conf: # formerly used default_mail_env = maildir:%h/Maildir # dovecot default mail_location = maildir:~/.maildir mail_location = maildir:~/Maildir With unix users of the form: myuser:x:505:100:My User:/home/myuser:/sbin/nologin each having ~/Maildir, should I: 1) use the ~/.maildir form over ~/Maildir. 2) use the ~ instead of %h 3) do anything for dovecot's benefit (reindex, etc.) besides a per-user 'mv ~/Maildir ~/.maildir' if 1). I came straight from an ancient sendmail mbox setup to dovecot, so I want to do things the best-pracitce IMAP/dovecot way. Thanks.

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