- 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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