- dovecot - dovecot.org

[Dovecot] maildirsize virtual quota support
by "Branko F. Gračnar" 22 May '04

22 May '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi. I'm interested to help you with maildirsize virtual quota support. Is there any documented dovecot api? Best regards, - -- Branko F. Gracnar Noviforum Ltd. Software & Media http://www.noviforum.si http://www.najdi.si -----BEGIN PGP SIGNATURE----- iD8DBQFArhbWfiC/E+t8hPcRAtX7AJ9A5ZtSN+6hGQVNLvEjdwV+h2AMBQCfVNem mn+DiJ2ov6+OB3O9hCu/NC8= =8rsG -----END PGP SIGNATURE-----

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[Dovecot] feature request / question?
by James Moser 22 May '04

22 May '04

Occasionally we get a user who decided they need to pop their account 3 to 4 times a second... usually I just disable their account and shout "no!", but now I have someone trying to do it repeatedly with an invalid username so I don't know who to spank. =) Before if this happened I would block the IP and wait for someone to complain... dovecot doesn't make that very easy, or at least I don't see how. May 20 20:12:29 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:30 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:31 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:32 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:32 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:32 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:32 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:32 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:33 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:33 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:33 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:33 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:33 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:34 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username May 20 20:12:34 mail05 dovecot-auth: mech-plain(jhurley(a)thegrid.net): invalid username No IP address, and we do not host thegrid.net. There are no other messages or authetication errors being logged anywhere else either. It would be helpful to have dovecot display the IP address of failed authentications as well... it allready show's it for login's. -- James L Moser james(a)powweb.com PowWeb Hosting http://www.powweb.com /(bb|[^b]{2})/, that is the Question. mysql>SELECT * FROM user WHERE clue > 0; Empty set (0.03 sec) Health is merely the slowest possible rate at which one can die... Health nuts are going to feel stupid someday, lying in hospitals dying of nothing...

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[Dovecot] Dovecot Questions
by Adam Kessel 22 May '04

22 May '04

Hi. I have two questions that don't appear to be answered anywhere: - Many of my users use a fetchmail ssh tunnel to get their mail. Typically this looks like poll 140.247.60.120 with proto imap: plugin "ssh -2 %h /usr/sbin/imapd" auth ssh; uw-imapd provides a binary /usr/sbin/imapd that can be used for an ssh-imap tunnel. I found /usr/lib/dovecot/imap (in Debian) which might work as a replacement, except that it appears that running /usr/lib/dovecot/imap doesn't properly read in the configuration file--for example, it is trying to create dotlocks, but in the configuration I have flock. Is there any way I can do what I want to do here? - Dovecot seems to be dying spontaneously in conjunction with SquirrelMail. Do you have any experience of this? SquirrelMail ends up reporting that there was no response to the CAPABILITY query. If I restart Dovecot, everything is fine again. I don't see anything in the logs to indicate the problem. Any ideas why this might be happening? Thanks for any pointers... -- Adam Kessel http://adam.rosi-kessel.org

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[Dovecot] Why the name dovecot?
by Sven Kirmess 22 May '04

22 May '04

Why is docecot called dovecot? Actually, nobody likes these "rats with wings". ;-) Timo, can we know that or is it a secret? Sven

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[Dovecot] mbox folders
by Villalovos, John L 22 May '04

22 May '04

I just upgraded to Fedora Core 2 from Fedora Core 1. Discovered that UW-IMAP was replaced with Cyrus. Not quite ready to switch to that mail box format so I instead installed dovecot which comes with Fedora Core 2. The RPM version is: dovecot-0.99.10.4-4 The problem I am having is that it seems to want to put folders in: ~/mail/mail/ I would like the folders to be in: ~/mail/ Currently in ~/mail/ there is a .subscriptions file. Am I stuck with having my folders be in ~/mail/mail/ ? Is there some configuration change that I can do? Thanks, John -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting Q: What is the most annoying thing on usenet and in e-mail?

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RE: [Dovecot] Dovecot Questions
by Julian Melville 21 May '04

21 May '04

> I suppose I should have mentioned that this is Debian sid, so Dovecot > 0.99.10.4 and SquirrelMail version 1.5.0. Not using pgsql or ldap. What happens if you telnet to e.g. port 143 when this is happening? Do you get a response from dovecot? I ask because I was experiencing the same symptom on a Debian (testing) machine a couple of months back. I had some assistance from Jaldhar but didn't get much closer to the answer. Eventually I put it down to low memory problems (it was a virtual-mode Linux server and had memory probs with other apps) and shifted to a real server with plenty of RAM. That's now also running Debian sid, dovecot and Squirrelmail without any problems. Cheers, Julian.

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RE: [Dovecot] mbox folders
by Villalovos, John L 19 May '04

19 May '04

dovecot-bounces(a)dovecot.org wrote: > No, he means in your dovecot.conf file Oh. Oops :) Initially I had nothing. And then went with the following: #default_mail_env = default_mail_env = mbox:~/mail/:INBOX=/var/spool/mail/%u John -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting Q: What is the most annoying thing on usenet and in e-mail?

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RE: [Dovecot] mbox folders
by Villalovos, John L 19 May '04

19 May '04

dovecot-bounces(a)dovecot.org wrote: > * Villalovos, John L <john.l.villalovos(a)intel.com> (20040518 13:46): >> The problem I am having is that it seems to want to put folders in: >> >> ~/mail/mail/ > > How is your `default_mail_env' variable configured? I have: [john@webhost john]$ set | grep -i mail MAIL=/var/spool/mail/john MAILCHECK=60 [john@webhost john]$ John -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting Q: What is the most annoying thing on usenet and in e-mail?

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[Dovecot] having hell of the time converting away from UW
by Eric S. Johansson 18 May '04

18 May '04

I just want to check and make sure not missing anything. I'm trying to convert a customer away from UW. unfortunately, all of the mailboxes are in MBX format (my own mistake coming back to haunt me). mailutil doesn't seem to do conversions properly. It keeps complaining about an existing copy of /mbox and only if I say to -merge append will the copy proceed. mailsync doesn't work well with hierarchies of mailboxes. its copies the top level mailboxes but proceeds to get sick on the sub mailboxes. I'm not sure what other tools there are to help me get out from the mbx rathole and over to the maildir wallow. any suggestions?

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[Dovecot] dovecot (mutt?) tells me I have new email (when I don't)
by Charlie Allom 18 May '04

18 May '04

Hi, does anyone else, whilst using mutt, have the problem where you read your new email - then change to another mailbox, *then* mutt tells you that you have new email in the mailbox you just read!? It seems to only happen when I: a) receive email in, say, =mi b) change to, and read email in =mi c) hit 'c' to change to next-unread mailbox d) mutt says "New mail in imap://yeled@localhost/" e) I 'c' back there to =mi and there is no New email - but there are some Old 'unread' emails (ie "O" status in mutt) I've attached the IMAP logs. Of special note is the RECENT after the thread 'a1192' in the file 203.018.243.123.00143-203.031.232.002.57 a1192 OK Status completed. * STATUS "mi" (RECENT 1) a1193 OK Status completed. I believe it's telling mutt that there is a new email in "mi" after I've just read it! a1184 OK Status completed. * 890 FETCH (UID 901 BODY[] {3661} ^^this is the email I just read, and is now "New" again. Subject: test2 Is this a mutt or dovecot bug/feature? Regards, C. -- charlie(a)rubberduck.com - Melbourne, Australia http://rubberduck.com/~yeled/ PGP: 0x14AA7941 || finger yeled(a)lazy.spodder.com

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[Dovecot] maildirsize
by Brian Candler 17 May '04

17 May '04

Hello, Are there plans to implement Maildir++ quotas (maildirsize) in dovecot in the near future? Also - how do things work if you have multiple dovecot frontends accessing an NFS mailstore? If you keep the index files on local disk, and clients connect alternately to different machines, are the stale indexes noticed and corrected? Thanks, Brian.

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[Dovecot] Dovecot vs. Courier-Imap
by Marten Lehmann 17 May '04

17 May '04

Hello, I've heard of both and I already tested and installed both, but I'm not sure which one is better, since both just seem to work and I can't see a difference, except from the point how it's set up and configured. Where are the drawbacks of each one, where are the benefits? I also tested cyrus before, but cyrus is not working well with maildirs. I'm not that into detail of both projects, maybe you can explain a bit. Thanks in advance for every answer! Regards Marten

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[Dovecot] 1.0-test9 released
by Timo Sirainen 17 May '04

17 May '04

http://dovecot.org/test/ - SORT command always replied with NO - Locking fixes. Fixes several crashes, dotlock errors and deadlock errors - When multiple sessions were concurrently modifying mailbox it often mixed up the messages that were supposed to be modified. When expunging it also gave errors such as: Corrupted transaction log file /home/user/Maildir/.INBOX/dovecot.index.log: Expunge range 5..5: UIDs 6..6 doesn't match real UIDs 18..18 Now it doesn't do it as often, but it still does.. I'm not really sure where the bug is. Have to keep looking. This seems much more stable than test8, but because of the above problem I still don't recommend it for more than testing.

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[Dovecot] local auth
by Kees Cook 15 May '04

15 May '04

Is there a way to run dovecot locally as a user, like uw-imap lets you do? I want to use dovecot with fetchmail over ssh... I couldn't find anything in the archives on this. -- Kees Cook @outflux.net

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[Dovecot] can I share IMAP folders for multiple user
by Hitao 14 May '04

14 May '04

Hi, Dear all, Just a bit curious, could I configure dovecot for two users share the access to certain IMAP folders in the mailbox? I searched the list archive and only found http://dovecot.org/list/dovecot/2004-April/003236.html and http://dovecot.org/list/dovecot/2004-April/003168.html, but I am not sure is this the same thing that I want and where could I find more details? Wish you a nice day! Hitao

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[Dovecot] dovecot-1.0-test8 / nfs / maildir / flags issues
by Maikel Verheijen 14 May '04

14 May '04

Hi List, While (bluntly) testing the prerelease version of dovecot on our mailfarm (just for the webmail imap) we noticed some small problems: - While our OLD dovecot/imap drove the load to a maximum of 1 over a day after running, the new dovecot/imap pushes it easily to 20. This is mainly due to a LOT more disk activity. This is probably caused by the fact we a) use indexes on disk and b) there are no indexes left. I hope this will smooth out when most of the indexes are made. - We notice some very strange "delete" flag things in our IMP webmail system (working on a test environment to be more specific). The problem is that if you mark some messages "deleted", a lot of messages that do NOT have "deleted" flag are also in the deleted list. Since nothing changed on the webmail, it must be in the way dovecot responds different in the new version on certain requests. - In the dotlocking code, it seems that dovecot uses time() for it's internal locktime, and uses stat() to see if the file-time of the lock is different. Since we use nfs there might be a time-difference on the file creation and time() when our nfs gets "busy". This happens a lot when the indexes are created for multiple users at the same time resulting in a lot of: May 12 08:57:44 mf1 dovecot[3763]: imap(user(a)domain.tld): Our dotlock file /var/mail/mounted/d/do/domain.tld/user/Maildir/.INBOX/ dovecot.index.log.lock was modified (1084345063 vs 1084345062), assuming it wasn't overridden I am not completely sure if this interrupts imap traffic. I think this MIGHT be solved by storing a stat() time as the locktime instead of a time(), but this might be intentional. - I patched dovecot to report its pid in syslog messages, in order to find the "killed by signal X" where X are mostly 11 and 6 processes. The pids reported do not show up in the rest of the log file, so these may be "disconnected" sessions? It seems that the "old" version has the same problem, and nobody really complained it was broken, so this isn't a big issue. To clarify our setup: We use multiple mail-frontends running dovecot that are load-balanced by a cisco load-balancer. We mount our mailstores from an active-active backend cluster, both nodes export a big partition, and take over the job of the other in case of a problem. This seems to go pretty smooth. Our users are stored in a pgsql database. In our current setup, we run a modified cvs version of dovecot from WAY back, to support nfs. The backdraw is that we can't use the newer dovecot releases, since I couldn't modify the source in the way I did it the first time (with a LOT of help from Timo :P). If anyone has some ideas on where to look and where to test in order to get our problems more clear, I would be very grateful :) Kind regards, Maikel Verheijen Ladot Nederland BV.

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[Dovecot] Problem building 1.0-test7 : missing header
by Curtis Maloney 13 May '04

13 May '04

Greetings, I recently rolled out Dovecot in our small (<30 people) company, and have been mightily impressed by the quality, performance and ease of use. I was hoping to use the new versions soon, as I'd like to start using CRAM-MD5 (much more common in mail clients than DIGEST-MD5), but found the 0.99.11 versions too unstable. So, I tried to build last nights CVS snapshot (May 10th), only to have the make break at this point: make[3]: Entering directory `/home/src/dovecot-1.0-test7/src/lib-index' make[3]: *** No rule to make target `mail-index-util.h', needed by `mail-cache.o'. Stop. I know it's not much, but it's a start at giving back a little. Hope it helps. -- Curtis Maloney

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[Dovecot] Codepage of folder names
by Petr Tuma 13 May '04

13 May '04

Hi, I have run into a problem configuring DoveCot 0.99 on a Linux server that handles Windows users. The server uses UTF8 on its filesystem but the Outlook IMAP folder names are sent in what looks like CP852. As a result, folder names that use national characters are damaged, which in turn breaks a webmail application running on the same server. A natural solution would be DoveCot translating folder names from CP852 coming across the wire to UTF8 used in filesystem operations, but I did not find any option for that in the configuration. Anybody encountered and solved this problem ? Petr Tuma

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[Dovecot] Is Dovecot ready for production use?
by Benjamin J. Weiss 12 May '04

12 May '04

Hi! I'm currently running RH 9 with postfix, uw-imap and MailScanner. I want to install Fedora Core 2 (when it comes out next week) with postfix, dovecot and amavisd. I'm unhappy with the problems I'm having with MailScanner, with the difficulty I've had with authentication as I am currently configured, and want to move to Maildir instead of mbox. That being said, is dovecot stable enough yet for production use? I only have four users on my home linux box, but I personally get around 500 emails a day (that fedora list is *busy*). Thanks, Ben

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[Dovecot] php.ini tweak
by Avery 12 May '04

12 May '04

I noticed this is my /etc/php.ini file ---------------------------------------- ; This directive tells PHP whether to declare the argv&argc variables (that ; would contain the GET information). If you don't use these variables, you ; should turn it off for increased performance. register_argc_argv = on ---------------------------------------- I ma trying to squeeze some extra performance out of my email server. If I turn this to off will this cause any problems with SQmail or any of SQmail's plugins. I tried turned this setting to off and everything seems to work fine. I am surprised that no one has asked about this before in this mailing list. Thanks, Avery

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[Dovecot] LDAP + passwd
by Paolo Basenghi 12 May '04

12 May '04

Hello, I'm in the process to choose between Courier and Dovecot. I would like to know if it's possible to configure Dovecot in order to use multiple user database (e.g. ldap+passwd) in order to have both virtual user authenticated by LDAP and system user authenticated by system password and with their own home directory. Another question: at http://dovecot.org/doc/dovecot-example.conf there is a configuration example that seems not work with Dovecot 0.99.10.4 It result in a "Fatal: Error in configuration file /etc/dovecot.conf line 391: Missing value". Line 391 is: "auth default {" Thank you for attention. Best regards. -- ___________________________________________________________________ Ing. PAOLO BASENGHI :::: Systems & Networking Engineer p.basenghi(a)netribe.it ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ NETRIBE srl :: Collaborative E-Business 42100 :: Reggio Emilia :: Italy :: Via della Costituzione, 27/4 ph. +39 0522 232378 :: fax +39 0522 232386 :: http://www.netribe.it ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

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[Dovecot] Case sensitive user names
by Jeff Graves 12 May '04

12 May '04

Hello list. This is my first post and I hope that I have something useful for people. Using Fedora Core 1 with the stock dovecot-0.99.10 RPM I noticed that user names were case sensitive which was a problem for me since I was attempting to set up winbind authentication which meant that what dovecot thought the homedir was could change depending upon the case the user typed in. Sendmail/procmail always changed the username to lowercase so I needed a way to duplicate this behavior. At any rate, I searched the archives and found Andrew's post from March: http://www.dovecot.org/list/dovecot/2004-March/003067.html - using this as a jumping point and I finally have case insensitive user names (better yet, forced lower case usernames) working for plain-text authentication (eg. dovecot.conf: auth = plain, auth_userdb = passwd, auth_passdb = passwd). It has been tested only on the source RPM from Redhat FC1 and I'm not a C programmer so I have no idea if it will work with other authentication methods or newer versions of software. I've rebuilt the RPMs (source and i386) if anyone's interested and here's the patch for those not using RPMs (it's attached as well): diff -ru dovecot-0.99.10/src/auth/mech-plain.c dovecot-0.99.10.new/src/auth/mech-plain.c --- dovecot-0.99.10/src/auth/mech-plain.c 2003-05-18 08:26:28.000000000 -0400 +++ dovecot-0.99.10.new/src/auth/mech-plain.c 2004-05-11 16:58:30.000000000 -0400 @@ -57,6 +57,7 @@ authenid); } + auth_request->user = str_lcase(auth_request->user); if (!mech_is_valid_username(auth_request->user)) { /* invalid username */ if (verbose) { Thanks, Jeff Graves, MCP Customer Support Engineer Image Source, Inc. 10 Mill Street Bellingham, MA 02019 508.966.5200 - Phone 508.966.5170 - Fax jeff(a)image-src.com - Email

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[Dovecot] nfs dotlock issues
by Maikel Verheijen 11 May '04

11 May '04

Hi List, While testing with dovecot-1.0-test8 on our platform, I get al lot of these: May 11 11:42:50 mf1 dovecot: imap(user(a)domain.tld): Our dotlock file /var/mail/mounted/d/do/domain.tld/user/Maildir/.INBOX/ dovecot.index.log.lock was modified (1084268570 vs 1084268875), assuming it wasn't overridden This is probably due to some time-issues on our platform, and the load the backend has. (our backends run in a live environment). Can the dotlock code get the timestamp of the file when the dotlock gets created in order to be able to keep the time in sync? Is there another way to prevent those seconds of time-difference? we run ntpd on both our frondends and our backends. Kind regards, Maikel Verheijen

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[Dovecot] 1.0-test7
by Timo Sirainen 11 May '04

11 May '04

http://dovecot.org/test/ Lots of bugfixes related to syncing. There's still some left. Somewhat working mbox support: - combined syncing/rewriting uses much less disk I/O than with older mbox code - expunges aren't working yet - last-uid field in X-IMAPbase header isn't updated - it's currently syncing the whole mbox constantly even if it hasn't changed - it isn't hiding the mbox-specific headers from IMAP clients - if mbox hasn't changed, rewriting could start from the message which requires rewriting instead of syncing the whole mbox - syncing could keep the lock file extra two seconds to make sure if someone changes it the file's mtime changes -> as long as only Dovecot is modifying it, we'll never need to sync the whole mbox -> multi-gigabyte mboxes are still fast! One nice thing about this mbox code is that it isn't exactly mbox-specific. Some people are still using formats which use eg. ^A as separator rather than From-line. Some people are using SMTP-formatted data directly ('.' as mail separator, '..' = normal line begins with '.'). These formats should be pretty easy to implement now as all mbox-specific code is in istream-raw-mbox.c file. I'll probably do that once mbox itself is fully working.

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[Dovecot] Mail always is delivered to /var/mail/
by Kevin Breit 07 May '04

07 May '04

Hey, I am setting up Dovecot on Debian with Postfix. I am telling Dovecot to use maildir:~/Maildir but it persists in dumping mail in mbox format in /var/mail/username. Can anyone suggest ideas? My config file is attached. Thanks Kevin

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[Dovecot] imap indexing error when moving multiple mails
by Hauke Fath 06 May '04

06 May '04

Hi, I've got an 'interesting' problem with a dovecot 0.99.10.4 setup on NetBSD/i386 1.6ZK. dovecot is serving imap only at the moment, using mbox format mailboxes. '/etc/dovecot.conf' is pretty vanilla - among the modified settings, mail_read_mmaped = yes maildir_check_content_changes = yes mbox_lock = fcntl could be relevant. Anyway - from time to time when I move a bunch of mails ( < 1) from a mailbox to another (or to the trash), the client (I've seen it with Eudora 6 on a Mac, with Mozilla 1.6 and Sylpheed on NetBSD) reports an "internal error" and the maillog shows Mar 25 14:07:33 bounce imap-login: Login: hf [130.83.xxx.yyy] Mar 25 14:07:44 bounce imap(hf): Error indexing mbox file /home/hf/Mail/Leute/Marc Wirth: LF not found where expected Mar 25 14:09:30 bounce imap(hf): Error indexing mbox file /home/hf/Mail/Leute/Marc Wirth: LF not found where expected which, if I retry the operation to another time, does not persist and is not strictly repeatable. I've set the number of allowed concurrent connections to '1' on the client, but that doesn't help. Is there anything obvious that I overlooked, or have I tripped over a genuine bug? hauke -- Hauke Fath /~\ The ASCII Ribbon Campaign Institut für Nachrichtentechnik \ / No HTML/RTF in email TU Darmstadt X No Word docs in email Ruf +49-6151-16-3281, Fax -3778 / \ Respect for open standards

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[Dovecot] Dovecot chrooting
by ?a??µp?? ?a?a???t?? 06 May '04

06 May '04

hello all i am new to dovecot and i have a small problem. I use qmail as a pop3 server and dovecot as imap. my rc script is as follows: -----snip----- #!/bin/sh exec env - PATH="/var/qmail/bin:$PATH" \ qmail-start '|preline procmail' splogger qmai -----end----- thus i deliver mails through procmail so all mails are located to /var/spool/mail. The problem exists when i tested chrooting and found it a very good idea to jail all my users.. *but* still qmail delivers mails to the real /var/spool/mail and not to the /home/chrootusers/var/spool/mail so that dovecot can pick them up. Is there any special configuration in dovecot.conf in order to chroot the /var/spool/mail to /home/chrootusers ? some of my conf: login_chroot = yes valid_chroot_dirs = /home/chrootusers mail_chroot = /var/spool/mail default_mail_env = mbox:~/mail/:INBOX=/var/mail/%u PS: tell me if you need more of the dovecot.conf PS2: sorry for my english its not my native

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[Dovecot] Re: Timezone of logentries from dovecot (Timo Sirainen)
by Lars Skovgaard 04 May '04

04 May '04

On Thu, 2004-04-29 at 15:57, Timo Sirainen wrote: > One more reason to make all logging go through dovecot-master process.. > > Temporary fix of course is setting login_chroot = no to config file. Thanks, Timo, that did the trick. Also thanks to Quentin for his reply, though I don't understand any of it. As stated, my knowledge of unix is rather limited... On Thu, 2004-04-29 at 15:48, Quentin Garnier wrote: > It's because the logging process is chrooted, doesn't have TZ env. var. > set, and doesn't have a correct /etc/localtime (or whatever your libc > uses) _inside_ the chroot directory. Therefore its timezone is the > default, UTC (formerly known as GMT). As I understand it, it would be a good idea to come up with a more permanent fix. However, I have no idea where to begin. Timo writes about making all logging go through the dovecot-master process – can anyone point me in the direction of information on how to accomplish this? Quentin writes about TZ env. var. (TimeZone?), /etc/localtime and the chroot directory. I'm sorry, Quentin, but I need a bit more info. I have the correct /etc/localtime, as far as I can tell. I've tried looking up TZ env. var. in my man-pages, but haven't come up with anything. I'll copy my /etc/localtime to the login_dir and see if this is enough. Thanks again, guys! /Lars

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[Dovecot] Envelope From changed - why?
by Tom Alsberg 04 May '04

04 May '04

Hi there. I am evaluating Dovecot as an IMAP server. I noticed on thing which irritates me. When a user saves a message to an IMAP folder with the Dovecot server, the envelope From line is changed to the address of that user, instead of keeping the From line of the original message. How can I have the original envelope From line preserved when saving messages? -- Tom -- Tom Alsberg - certified insane, complete illiterate. Homepage: http://www.cs.huji.ac.il/~alsbergt/ * An idea is not responsible for the people who believe in it.

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[Dovecot] Maildir files in cur without info
by Christoph Hohmann 04 May '04

04 May '04

Hi, I have tried to use the same Maildir dovecot uses with another program and encountered the problem that Dovecot seems to move files from new to cur in maildir-sync.c::maildir_scan_dir without adding an info part. On the page http://cr.yp.to/proto/maildir.html is written that mails have to be renamed to uniq:info when moved to the cur directory. Could this be a bug in dovecot? -- http://reboot.animeirc.de http://sylpheed-claws.sourceforge.net/

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[Dovecot] 1.0-test4
by Timo Sirainen 03 May '04

03 May '04

http://dovecot.org/test/ Maildir syncing should be pretty optimized now. And it works now with more than 40 messages in mailbox :)

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[Dovecot] Dovecot hangs after 2 or 3 days
by Jens Gutzeit 03 May '04

03 May '04

Hi all, We've some problems with our dovecot installation, its the latest stable compiled on a debian woody box. After 2 or 3 days dovecot hangs, no user can login (pop3 and imap), there's nothing in the logs. The client does allways timeout, if I restart dovecot all works well again. It's a box with s.th. around 400 users, we've enough mem free, load is not a problem, it went from 0.9 to 0.1 after migrating from cyrus-imapd, so this doesn't seem to be hardware related. My dovecot conf is online at: http://mail.sunday.de/dovecot.conf best regards/Mit freundlichen Grüßen Jens Gutzeit -- Tel.: +492151 652945 Ein PC besteht sowieso i.d.R. zu 90% aus faulen Kompromissen, zu 7% aus Elektronikschrott und zu 3% aus wirren Ideen. Benedict Mangelsdorff

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[Dovecot] 1.0-test1 released
by Timo Sirainen 03 May '04

03 May '04

http://dovecot.org/test/ I couldn't break this with Evolution with a few minutes of testing, so here's the first tarball release based on the new indexing code. Try if you're interested, but don't try it on any real mailboxes, or at least keep backups :) Also note that dovecot-uidlist file format has changed a bit, Dovecot 0.99.x isn't able to read it anymore. Things to do: - mbox code doesn't even compile, so it's disabled - custom flags aren't implemented - recent flags are broken - cache file handling isn't working now, so it's disabled - maildir syncing code isn't as well optimized as it used to be - NFS-safety to indexes (pretty easy)

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[Dovecot] 1.0-test2 released
by Timo Sirainen 03 May '04

03 May '04

http://dovecot.org/test/ I still haven't done much real world testing, but I've been thinking about all the potential race conditions a lot since last time and fixed a lot of them. There might still be some.. Changes since -test1: - Locking fixes - A lot more difficult to crash it with corrupted index files - Recent flag works, this time exactly as IMAP RFC says - Maildir syncing fixes - fcntl_lock_disable and mmap_disable settings to make it work with NFS.. almost. Not very well tested and there's a few performance issues left. - mmap_no_write setting to disable mixing write/mmap calls. Required for OpenBSD. Uses slightly more memory. If you can break the indexes, I'd like to know about that. I think they should work pretty well now.

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[Dovecot] Timezone of logentries from dovecot
by Lars Skovgaard 29 Apr '04

29 Apr '04

Hi I've been using dovecot for a long time now, and have nothing but praise for it. It's considerably faster than uw-imap, and has been very easy to configure, in spite of my limited knowledge of unix. One thing still botheres me, though, and that's the time of the entries in my logfiles. It seems that dovecot logs it's entries in GMT, while I'm using GMT+1. This is made even worse by the fact that we're now using daylight savings time, which upps the difference to two hours. Here's a couple of lines from my logs to show the difference: Apr 29 14:30:07 misterp mach_kernel: ipfw: 10000 Deny UDP 213.122.19.185:33123 129.142.126.35:137 in via en0 Apr 29 14:30:59 misterp mach_kernel: ipfw: 4000 Accept TCP 80.197.22.210:38518 129.142.126.35:995 in via en0 Apr 29 12:30:59 misterp pop3-login: Login: torben [80.197.22.210] Apr 29 14:32:25 misterp mach_kernel: ipfw: 10000 Deny UDP 195.122.208.191:1066 129.142.126.35:1434 in via en0 I don't know how to fix this, whether it's in dovecot or somewhere in a system-setting. However, all other applications log their entries with the systems current setting, so I suspect it's in dovecot. I would very much appreciate any help on the subject. Btw, I'm using MacOS X 10.2 with dovecot 0.99.10.4. Thanks! /Lars

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[Dovecot] Index abuse
by Rick Jones 28 Apr '04

28 Apr '04

How resilient is Dovecot's indexing mechanism? (seeing as it's been extensively re-vamped I guess this question may have different answers for 0.99 & 1.0). To put it in context, I'm playing with server-side automatic maintenance scripts for things like deleting messages more than x days old from folders a, b, c, etc. (using Maildir layout). So far I'm just zapping files in the cur and new directories and nothing amiss appears to happen from the IMAP client's viewpoint. I just wonder if I'm storing up trouble. Will the index files continue to hold references to non-existent files and get bloated, or do they self-clean? -- Rick Jones

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[Dovecot] Feature request: more log info/stats
by Christian Balzer 27 Apr '04

27 Apr '04

Hello, even though Timo seems to be hibernating (it's not _that_ cold in ole Suomi ;) I'd like to beg for a feature that would be very much appreciated over here. If something like this is already present and eluded my thorough archive and doc searches, feel free to smack me and then point me to the right direction. Feature request: More extensive session information and statistics in the logs. Currently all I can get from dovecot is login information, there's not even a log entry when a session was ended either by the client or a timeout. In addition a short summary would be be very helpful, qpoppers one liner stats come to mind like this: --- Apr 12 05:30:30 test in.qpopper[21266]: Stats: test 6 21868 2 108126 some.do.main IP.AD.DR.ES [pop_updt.c:296] --- Stating that user test downloaded/deleted 6 mails with 21868 bytes total and kept 2 in the inbox. This might be expanded on for IMAP operations like moves or such and raw data about transferred bytes in/out added (in my case I get that info from perdition), but the really important parts are: When did a user log into the server, when did that session end? How many new mails were read and how many mails deleted during that session? The rationale is that with this info at hand the (unfortunately) very common user whining along the lines of "the mail server ate my mails" or "I never saw this mail!" are much easier to refute. Regards and keep up the good work, Christian Balzer -- Christian Balzer Network/Systems Engineer NOC chibi(a)gol.com Global OnLine Japan/Fusion Network Services http://www.gol.com/

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[Dovecot] Setting "default_mail_env" Why is index->mailbox_path empty?
by Robert McLay 27 Apr '04

27 Apr '04

I now have default_mail_env = mbox:~/mail:INBOX=:/var/spool/mail/%u I now getting: Apr 26 15:55:32 jedrik imap(mclay): open() failed with mbox file : No such file or directory I tracked down where the error message is getting generated and added some more printing: In mbox-index.c I added: int mbox_set_syscall_error(struct mail_index *index, const char *function) { i_assert(function != NULL); i_error("index->mailbox_path: %%%s%%", index->mailbox_path); i_error("index->dir: %%%s%%", index->dir); i_error("index->filepath: %%%s%%", index->filepath); i_error("index->control_dir: %%%s%%", index->control_dir); index_set_error(index, "%s failed with mbox file %s: %m", function, index->mailbox_path); return FALSE; } This generates the following output. It seems clear that the initial reading of mbox is read correctly because index->dir and others have values derived from it but for some reason mailbox_path is empty. This is version 0.99.10.4 built with gcc 3.3.2. Here is the bottom of running ./configure: --------------------------------------------------------------------------- Install prefix ...................... : /vol/pkg/dovecot/0.99.10.4 File offsets ........................ : 64bit Building with SSL support ........... : yes (OpenSSL) Building with IPv6 support .......... : yes Building with pop3 server ........... : yes Building with user database modules . : static passwd passwd-file (modules) Building with password lookup modules : passwd passwd-file shadow pam (modules) --------------------------------------------------------------------------- Apr 26 17:06:51 jedrik imap(mclay): index->mailbox_path: %% Apr 26 17:06:51 jedrik imap(mclay): index->dir: %/home/mclay/mail/.imap/INBOX% Apr 26 17:06:51 jedrik imap(mclay): index->filepath: %/home/mclay/mail/.imap/INBOX/.imap.index% Apr 26 17:06:51 jedrik imap(mclay): index->control_dir: %/home/mclay/mail/.imap/INBOX% Apr 26 17:06:51 jedrik imap(mclay): open() failed with mbox file : No such file or directory Apr 26 17:06:51 jedrik imap(mclay): index->mailbox_path: %% Apr 26 17:06:51 jedrik imap(mclay): index->dir: %/home/mclay/mail/.imap/INBOX% Apr 26 17:06:51 jedrik imap(mclay): index->filepath: %(in-memory index for )% Apr 26 17:06:51 jedrik imap(mclay): index->control_dir: %/home/mclay/mail/.imap/INBOX% Apr 26 17:06:51 jedrik imap(mclay): stat() failed with mbox file : No such file or directory Any ideas? Thanks

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[Dovecot] Newbie Q: Setting up under linux: Spool directory.
by Robert McLay 26 Apr '04

26 Apr '04

I am trying to set up dovecot under linux. (RH9 if it matters). I'm having trouble having it find the mail that is already delivered. What I would like is that mail is delivered by fetch mail to /var/spool/mail/mclay (that me) then have dovecot find it. I'm sure that I have not set the dovecot.conf file correctly. The documentation is unclear as to what "mbox" is and "INBOX" is. I have tried having default_mail_env unset and with the following: default_mail_env = mbox:/var/spool/mail/%u:INBOX=:/home/%u/Maildir What I get when I talk to it directly is: $ telnet localhost imap Trying 127.0.0.1... Connected to localhost Escape character is '^]'. * OK dovecot ready. A00002 LOGIN mclay "xxxxxx" A00002 OK Logged in. A00003 SELECT INBOX A00003 NO Internal error [2004-04-26 12:56:03] So could a kind sole point me in the right direction? Thanks

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[Dovecot] syslog() logging problems
by James Moser 26 Apr '04

26 Apr '04

was wondering if anyone else has had problems with dovecot logging to syslog? When I start the server it works fine, then after an hour or so it stops.. restarting the server always makes it work again. -- James L Moser james(a)powweb.com PowWeb Hosting http://www.powweb.com /(bb|[^b]{2})/, that is the Question. mysql>SELECT * FROM user WHERE clue > 0; Empty set (0.03 sec) Health is merely the slowest possible rate at which one can die... Health nuts are going to feel stupid someday, lying in hospitals dying of nothing...

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[Dovecot] shared folders?
by Gareth J. Greenaway 26 Apr '04

26 Apr '04

Greetings, I saw mention in results from a google search that there was some support in dovecot CVS for shared folders, is there some docs on how to use them? Provided there is in fact support for them in CVS. Thanks. -- Gareth J. Greenaway | gareth(a)wiked.org SCLUG - Simi Conejo Linux Users Group http://www.sclug.org

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RE: [Dovecot] triggering multiple actions on pop-3 request
by Julian Melville 26 Apr '04

26 Apr '04

> The reason for this is so that the messages > retrieved by fetchmail can be filtered via an anti spam > service before depositing them into the inbox. How about just running fetchmail in daemon mode, so it's polling for messages instead of running on demand? Then you don't need to worry about any special integration issues. Julian.

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[Dovecot] RE: Missed config option
by Alex S Moore 26 Apr '04

26 Apr '04

I am trying to sync a set of maildir folders from a dovecot server and a different imap server on a different host. Using a perl tool called imapsync. The tool says the following about the two servers capabilities: >From capability : IMAP4rev1 SORT THREAD=REFERENCES MULTIAPPEND UNSELECT LITERAL+ IDLE CHILDREN LISTEXT LIST-SUBSCRIBED To capability : IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION No NAMESPACE capability in imap server sws601.mcsun.local Give the separator character with the --sep1 option The From server sws601.mcsun.local is dovecot. What did I miss that causes the NAMESPACE capability to not be seen from dovecot? What is the separator character? Thanks, Alex --

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[Dovecot] imap errors filtering folders with evolution
by Brent Hills 26 Apr '04

26 Apr '04

Hello, I posted earlier to the Ximian Evolution Users list. It was suggested I follow up in relation to dovecot. They also indicated the timestamp in the error message was coming from dovecot. When filtering a folder on a dovecot (0.99.10) imap server with Evolution version 1.46 I receive: Error while 'Filtering Folder' Imap command failed internal error [YYYY-MM-DD HH:MM:SS] The timestamp seems to be the current time. The filters used are primarily move to folder where the destination folder is another imap folder on the same server. The error can be reproduced reliably if I select a large number of email to filter. There are about 10 filters all moving to different folders based on criteria. If I select smaller number of email the error occurs but less predictably. Eventually, it will filter all the email so its not a particular one that it hangs up on. Is anyone familiar with this issue? Brent Hills.

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[Dovecot] dovecot dies - mabye a clue?
by Steven Stern 26 Apr '04

26 Apr '04

Dovecot died twice today. This was in the maillog: Apr 9 17:50:27 ciscy pop3-login: RAND_bytes() failed: error:24064064:random number generator:SSLEAY_RAND_BYTES:PRNG not seeded Apr 9 17:50:27 ciscy dovecot: Login process died too early - shutting down I think I can cause it to happen reliably and I'm asking for other to test this scenario: Open several terminal windows. In each, type "telnet 127.0.0.1 110". Wait for the dovecot POP prompt and do nothing. After each times out, up-arrow and try again. Sometime in the next hour, dovecot will die. -- Steve

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[Dovecot] file permissions help!
by smk 26 Apr '04

26 Apr '04

Hi all! Ran into a problem and hopefully i can get some help. OK here is my set up: - dovecot-0.99.10.4 + MySQL patch. - Redhat 9 The authentication part works just fine. It gives me the following entry in the log file: imap-login: "Apr 12 22:15:10 "Info: Login: USER(a)DOMAIN.com [127.0.0.1] But there is a problem with dovecot reading the mbox file (I think). In the error file I get this entry: imap(USER(a)DOMAIN.com): "Apr 12 22:15:10 "Fatal: Failed to create storage with data: /export/htdocs/DOMAIN.com/mail/USER dovecot: "Apr 12 22:15:11 "Error: child 18613 (imap) returned error 89 Of course the user and domain info was changed. I am out of ideas but thats not to say its something easy or something I completely looked over. This is how I compiled dovecot: CPPFLAGS="-I/usr/local/mysql/include/mysql -DPASSDB_MYSQL -DUSERDB_MYSQL" \ LDFLAGS="-L/usr/local/mysql/lib/mysql/ -lmysqlclient" \ \ ./configure \ --prefix=/usr/local/imapd \ --disable-ipv6 \ --without-pop3d \ --without-ssl \ --with-storages=mbox \ --enable-debug thanks in advance. Scott

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[Dovecot] Problem with flags
by Jeff Hoskinson 26 Apr '04

26 Apr '04

Greetings! I'm having a problem with flags not working correctly. I'm using Mozilla Thunderbird as my mail client, and Dovecot 0.99.10.4 as part of Debian on a Sparc box. The thing that doesn't seem to be working right is Thunderbird's Label feature, which uses custom IMAP flags. I noticed that once I labeled a message, I couldn't un-label it. I recorded this exchange between Thunderbird and Dovecot while using the Label/None command on a message: 5235 uid store 35 -Flags ($Label1 $Label2 $Label3 $Label4 $Label5) * 35 FETCH (FLAGS (\Answered \Seen NonJunk $Label4 $Label5) UID 35) 5235 OK Store completed. Even though Thunderbird is sending the -Flags command for all its custom flags, the message is still retaining two of those flags. Just out of curiousity, I tried changing the flag of that same message to something different, and recorded this exchange: 5259 uid store 35 +Flags ($Label2) * 35 FETCH (FLAGS (\Answered \Seen NonJunk $Label4 $Label2 $Label5) UID 35) 5259 OK Store completed. 5260 uid store 35 -Flags ($Label1 $Label3 $Label4 $Label5) * 35 FETCH (FLAGS (\Answered \Seen NonJunk $Label4 $Label2 $Label5) UID 35) 5260 OK Store completed. So it seems the +Flags command works, but not the -Flags? Or does it have something to do with sending more than one flag at a time? Any help would be appreciated. Thanks, -- Jeff

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[Dovecot] [OT] Is there a secure reverse IMAP proxy
by Sven Kirmess 26 Apr '04

26 Apr '04

This question is off topic. I ask this list because the question is related to security and IMAP and I guess the people in this list know a lot about both of that. Is there a secure reverse proxy for the IMAP protocol? Something you can install on a bastion host which checks the IMAP traffic before forwarding it to the internal IMAP server? There are these proxies for WebMail to IMAP connections but as far as I can tell they were not created for security reasons and not with security as primary goal. Sven

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[Dovecot] SSL Ciphers
by John Wentworth 26 Apr '04

26 Apr '04

I have dovecot running as a pop3s server on port 995 it works great with sendmail and I run nessus to check security issues nessus reports this The SSLv2 server offers 3 strong ciphers, but also 0 medium strength and 2 weak "export class" ciphers. The weak/medium ciphers may be chosen by an export-grade or badly configured client software. They only offer a limited protection against a brute force attack Solution: disable those ciphers and upgrade your client software if necessary I have previously disabled weak ciphers in apache but cannot figure out how to disable the weak ciphers in dovecot Any help would be appreciated john

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[Dovecot] problems with squirrelmail and TLS (debian unstable)
by Amelia A Lewis 26 Apr '04

26 Apr '04

Heylas, So, okay, I've had this lovely IMAP server running, and adore the ease of configuration, among other things. Problem, though. I'm trying to set up SquirrelMail, so that some folks with accounts on my box can use it without having to set up a proper imap client (or can check mail when they're at a cafe, or like that). However, I *won't* turn off the disable_plaintext_auth, 'cause I'm damned if I'll set up a box that asks people to send passwords in the clear, and there *are* people using imap. Dovecot cannot, currently, be configured to permit plaintext on localhost while requiring Something Better from the rest of the world. This becomes a problem with SquirrelMail, which can't cope with TLS. It just barfs. Looking at bug reports in debian, this has already been noticed, and the maintainer there (and the maintainers of SquirrelMail) considers this a non-problem, 'cause, they say, you shouldn't be using TLS with webmail. Is there a way to set up, for instance, two instances of dovecot, running on different ports, so that one listens to the external interface and the other listens to localhost? I don't much like the idea, but how would I go about doing this? Two copies of dovecot.conf and a command-line switch? Amy! -- Amelia A. Lewis amyzing {at} talsever.com Yankees are compelled by some mysterious force to imitate Southern accents and they're so damn dumb they don't know the difference beween a Tennessee drawl and a Charleston clip. -- Rita Mae Brown, "Rubyfruit Jungle"

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