- dovecot - dovecot.org

[Dovecot] locking methods
by Obantec Support 06 Apr '06

06 Apr '06

Hi 1.0 stable is there a way to check which locking method is in use. procmail shows Locking strategies: dotlocking, fcntl() does dovecot use these by default as they are commented out in dovecot.conf Mark

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Re: [Dovecot] batch convert mbox to maildir
by Todd Piket 06 Apr '06

06 Apr '06

I did not use the the libc-client Perl bindings...sorry. I used a modified version of mb2md-3.20. It was pretty simple really. If you'd like to look at/dowload the source please visit: http://svn.dcs.it.mtu.edu/email.mtu.edu/convert_tools/tags/mb2md-release-4.… (I have my own release numbers for the whole system I wrapped around mb2md). Not a lot of documentation and there is a lot that is specific to my site, but it shouldn't be too hard to decipher and you can always ask me questions, though I'm going to take a well earned next 2 days off. If anyone is interested, the conversion we just performed has been in place for ~5 days now. Only a handful of the ~30,000 users we converted noticed we even did anything (except performance) is better (this was in large part due to the UIDL code I added to mb2md). We are now huge Dovecot fans! Regards, ------------------------------------------------------------ | Todd Piket | Email: todd(a)mtu.edu | | Programmer/Analyst | Phone: (906) 487-1720 | | Distributed Computing Services | | | Michigan Technological University | | ------------------------------------------------------------ pod wrote: >>>>>> "TP" == Todd Piket <todd(a)mtu.edu> writes: > > [...] > TP> If you would like the source for this system I would be happy to > TP> provide it. There is no documentation right now as it was a one > TP> time only thing, but I can try to explain. If others are > TP> interested just let me know. The whole thing is written in Perl > TP> and expects to be run as root. It chowns everything in the final > TP> steps. > > I'm definitely interested. What you've done sounds fabulous. I'm going > to be needing to convert our users here at Oxford soon from uw-imap mbx > (not Berkley mbox) to dovecot maildir on a similar scale. > > Did you use the libc-client perl bindings for reading the mbox? If you > did then adapting for mbx should be a piece of cake. If not then I'll > need to do some work; I'm more than happy to submit patches back.

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[Dovecot] Overriding inbox location in passwd-like file
by Václav Haisman 05 Apr '06

05 Apr '06

Hi, I have some real users and some virtual users. The real users use mbox file as their inbox. But I'd like to use Maildir as inbox for the virtual users. (The reason is that I am actually moving some accounts from another server that already uses Maildir.) I'd like Dovecot to find Maildir in $HOME of my virtual users as their inbox. So I tried to use the following in my users.passwd file: test:{PLAIN}some_password:30003:30003::/home/vmail/domain/test:/bin/false::maildir:%h/Maildir/:INBOX=maildir:%h/Maildir/ Unfortunatelly this doesn't work and dies with this message: Mar 8 16:44:25 logout dovecot: imap(test): Ambiguous mail location setting, don't know what to do with it: /home/vmail/isc.cvut.cz/test/mbox (try prefixing it with mbox: or maildir:) Mar 8 16:44:25 logout dovecot: imap(test): Failed to create storage for '' with data: /home/vmail/isc.cvut.cz/test/mbox Mar 8 16:44:25 logout dovecot: child 41976 (imap) returned error 89 Is it even possible to override the setting from dovecot.conf like this? Vaclav Haisman

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[Dovecot] C programmers, please help. need dovecot patch
by Adam M. Dunn 05 Apr '06

05 Apr '06

Hi all. Can any C programmers out there tell me how to fix Dovecot to default to Maildir format when autodecting can't find anything? I don't know C, but it seems like it would be a simple thing. Right now, I use the autodetect mailbox feature because we want users to choose to optionally be able to use Mbox format (we have some diehard unix users with non-maildir clients). I have Maildrop setup to check for the existance of a ~/Maildir folder in the user's home, and if it exists, it delivers there. Otherwise it falls back to ~/Mail where mbox style files go. The problem with Dovecot is there is no way to tell the autodetect feature what to default to, and if it can't find anything, it automatically creates a folder called ~/mail under the user's home and primes it with an Mbox file, but I'd rather it create a ~/Maildir instead. So if we have for example, a new user with no mail yet, and they log in via IMAP before getting any mail from maildrop, Dovecot will create a them a ~/mail folder. So when they DO get mail, our maildrop filters will think they are an Mbox user. I could do some fancy Maildrop filters to fix that when they get their first mail, but in the meantime the unknowing user could try creating things via IMAP that gets overwritten. Anyway, it would be much cleaner if Dovecot just did what I wanted. If anyone could point me to the place to patch my copy of Dovecot, I would GREATLY apprecieate it. I don't know C, but I know many other languages. I would also like to see this be added via the config file in future releases. So consider this a feature request. Not only that, but more control over the autodetection process in general would be REALLY nice. Thanks. Adam

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[Dovecot] Setting a Default Domain
by Richard Laager 05 Apr '06

05 Apr '06

I'm working on migrating to Dovecot. At the moment, I have a mail path that includes the domain, so I'm using %d to get that. However, if users authenticate without specifying a domain (i.e. using "bob" instead of "bob(a)wiktel.com"), then %d expands to nothing. I'd like to have that expand to a default domain (wiktel.com) instead. Is that possible? Thanks, Richard

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[Dovecot] About Released 1.0 alpha5 version
by Gisella Linares 04 Apr '06

04 Apr '06

Hi, I'm woking with dovecot at my work and I would want to upgrade the actual version to Released 1.0 alpha5 version, but when I saw the download section at dovecot home page, I noticed that you have only beta versions available. Because of this, I would want to ask you if since now you only put available beta versions or those of them will be replace for the next alpha version. Thanks for beforehand your gentility in the attention to the present. Regards, Gisella Linares

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[Dovecot] 1.0.beta5 released
by Timo Sirainen 04 Apr '06

04 Apr '06

Just two changes: - Beta4's SSL proxying rewrite worked worse than I thought. Reverted it back to original code. - Filesystem quota plugin now looks up the mount path correctly.

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[Dovecot] SSL failures on 1.0B3
by Joseph Filla 04 Apr '06

04 Apr '06

I have setup Dovecot 1.0B3, and IMAP works fine, but I cannot get IMAPS to work. I've generated the keys with the mkcert script and Thunderbird can see and accept the certificate but tosses an error just after that. In my log, I'm getting: dovecot: Apr 03 19:07:43 Warning: imap-login: SSL_accept() failed: error:140D308A:SSL routines:TLS1_SETUP_KEY_BLOCK:cipher or hash unavailable [x.x.x.x] dovecot: Apr 03 19:07:43 Info: imap-login: Disconnected: rip=x.x.x.x, lip=x.x.x.x, TLS Can anyone give me a tip as to what is the matter? I don't understand these ssl errors, Thanks, -- Joe

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[Dovecot] 1.0.beta4 released
by Timo Sirainen 04 Apr '06

04 Apr '06

I haven't had yet time to read all the mails in this list which I skipped in the last few of weeks. I'll try to get to them eventually. This release contains several new features which haven't been fully tested yet, such as ACLs, master users and Maildir++ quota. If you intend to use them, test them properly first. This is the first Dovecot release where it's supposed to work well with NFS. Even with indexes being stored in NFS. I was able to test it only with Linux 2.4 kernels as clients though, and it didn't work well in a stress test. It looked like the problem was caused by the kernel caching the data a bit too much. Hopefully I can test soon with 2.6 kernels. Also note the other changes which might affect you. Especially if you're using Dovecot-LDA remember to upgrade it as well to make sure the default lock_method gets updated in it also. As for the future, it looks like I'm getting soon paid to develop several features to improve Dovecot's performance (by the company which already paid for ACLs, NFS fixes and many other changes in this release, thanks!). * Changed the default lock_method back to fcntl. Apparently flock gives problems with some systems. * mbox: mailboxes beginning with '.' are now also listed * Replaced mail_use_modules and mail_modules settings with mail_plugins and mail_plugin_dir. Now instead of loading all plugins from the directory, you'll have to give a list of plugins to load. If the plugin couldn't be loaded, the process exits instead of just ignoring the problem (this is important with ACL plugin). + Added support for "master users" who can log in as other people. The master username can be given either in authorization ID string with SASL PLAIN mechanism or by setting auth_master_user_separator and giving it within the normal username string. + Added ACL plugin with ACL file backend. This however doesn't mean that there yet exists a proper shared folder support. If master user logged in as someone else, the ACLs are checked as the master user. + Added some Dovecot extensions to checkpassword passdb, see ChangeLog + Updated passwd-file format to allow specifying any key=value fields + Maildir++ quota support and several quota fixes + passdb supporting extra fields: Added "allow_nets" option which takes a comma separated list of IPs/networks where to allow user to log in. + NFS: Handle ESTALE errors the best way we can + IMAP now writes to log when client disconnects + In shared mailboxes (if dovecot-shared file exists) \Seen flags are now kept only in index files, so as long as each user has a separate index file they have separate \Seen flags. - Fixes to DIGEST-MD5 realm handling so it works with more clients - BODYSTRUCTURE -> BODY conversion from cache file was broken with mails containing message/rfc822 parts. - Fixed several memory leaks - We could have sent client FETCH notifications about messages before telling about them with EXISTS - Compiling fixes for Solaris and some other OSes - Fixed problem with internal timeout handling code, which caused eg. outlook-idle workaround to break. - If /dev/urandom didn't exist, we didn't seed OpenSSL's random number generator properly. Patch by Vilmos Nebehaj. - Maildir: Recent flags weren't always immediately removed from mails when mailbox was opened. - Several changes to SSL proxying code, hopefully making it work better.

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[Dovecot] Dovecot 1.0beta4 and Disconnected Problem
by Gerhard Wiesinger 04 Apr '06

04 Apr '06

Hello! Yesterday I upgraded from 1.0beta3 to 1.0beta4. I've major problems now with my inbox (quite large, 900MB) and another large folder. Thunderbird 1.5 connects and disconnects. I tried to delete the indexes of dovecot and thunderbird without any sucess. Finally I downgraded to 1.0beta3 and it works well again (Beta3 was running for a timeframe from when it came out and now without any problems). Config is the same as for 1.0beta3. Apr 3 07:30:27 bbs dovecot: imap-login: Login: user=<user1>,method=plain, rip=192.168.0.5, lip=192.168.0.2, TLS Apr 3 07:30:27 bbs dovecot: imap(gerhard): Disconnected Apr 3 07:30:27 bbs dovecot: imap-login: Login: user=<user1>, method=plain, rip=192.168.0.5, lip=192.168.0.2, TLS Apr 3 07:30:28 bbs dovecot: imap(gerhard): Disconnected Apr 3 07:30:28 bbs dovecot: imap-login: Login: user<user1>, method=plain, rip=192.168.0.5, lip=192.168.0.2, TLS Apr 3 07:30:28 bbs dovecot: imap(gerhard): Disconnected Any ideas how the problem can be found? Thank you for the answer. Ciao, Gerhard

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