- dovecot - dovecot.org

[dovecot] observations/qestions of mbox concurrency ability (Yay!) on current CVS
by Ian R. Justman 20 Oct '02

20 Oct '02

Hi, all. Just been testing out the latest "CVS" (in quotes because I'm rsyncing the source tree) versions of Dovecot lately. Tested having Pine on the machine on which Dovecot was running, talking IMAP, as well as another Pine instance, this time from my Windows machine over the wire. Things seem to be working wonderfully. Deleted a message using one instance, then refreshed the list on the other. *poof* Gone. Though I'm seeing periodic "IMAP protocol error" messages in Pine, but they don't seem to be affecting the software's operation that I can see. Anything in particular I should be on the lookout for? Otherwise, you just made my day. Correction; week. :D --Ian.

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[dovecot] Re: still problems gettin it to work
by Korbinian Riedhammer 19 Oct '02

19 Oct '02

well finally it was my own stupidness! i just forgot to set some correct permissions, now everythings fine! thx anyway korbinian

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[dovecot] Re: still problems gettin it to work
by Korbinian Riedhammer 19 Oct '02

19 Oct '02

yeah, the nasty error msgs are gone :) well next question. where looks the dovcot imapd for the mail dir? /var/mail or the homedir? 'cause i saved my Maildir in /home/user

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[dovecot] Re: still problems gettin it to work
by Korbinian Riedhammer 19 Oct '02

19 Oct '02

well i didn't know what to change, cause u wrote that this change u did is pretty useless rinning the prog as root, what i do. next thing that i dont have any idea about cvs (beside knowing its meaning) and dont hav it installed yet.

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[dovecot] still problems gettin it to work
by Korbinian Riedhammer 19 Oct '02

19 Oct '02

i checked all my options again. could it be, that it is a problem with my compiler? does dovecot support gcc3.2 with glibc 2.2.5? korbinian

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[dovecot] still problems getting it to work
by Korbinian Riedhammer 15 Oct '02

15 Oct '02

hi all, after havong some other trouble with my server i finally managed to recompile and install dovecot. installed it in /usr/local (the dafault). below u see a dump of my config file. i want to use "normal" shadow passwords for authentification. i adjustet the pathes from /usr/ to /usr/local/. when i login with outlook express 4 example i get the error: unsupported authentification method. (my system isn't configured for shadow md5). in the error log i get the the /dev/urandom is needed but not found, well but i have it :) maybe a chroot setting? thx bini imap_port = 143 #imaps_port = 993 imap_listen = #imaps_listen = #ssl_cert_file = /etc/ssl/certs/imapd.pem #ssl_key_file = /etc/ssl/private/imapd.pem disable_plaintext_auth = no log_path = /var/log/imapd.log log_timestamp = %d %H:%M:%S login_executable = /usr/local/lib/dovecot/imap-login login_user = imapd login_dir = /var/run/dovecot/login login_chroot = yes login_processes_count = 1 max_logging_users = 256 imap_executable = /usr/local/lib/dovecot/imap max_imap_processes = 1024 first_valid_uid = 1000 #last_valid_uid = 0 first_valid_gid = 101 last_valid_gid = 101 valid_chroot_dirs = /var/run/dovecot maildir_copy_with_hardlinks = no maildir_check_content_changes = no overwrite_incompatible_index = yes umask = 0077 auth = default auth_methods = plain #auth_realms = auth_userinfo = shadow auth_executable = /usr/local/lib/dovecot/imap-auth auth_user = root auth_chroot = /var/run/dovecot auth_count = 1 #auth = digest_md5 #auth_methods = digest-md5 #auth_realms = #auth_userinfo = passwd-file /etc/passwd.imap #auth_user = imapauth #auth_chroot = /var/run/dovecot/auth

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[dovecot] More documentation
by Timo Sirainen 15 Oct '02

15 Oct '02

I just wrote a bit of documentation. Probably not very well organized, improvement suggestions welcome :) http://dovecot.procontrol.fi/doc/INSTALL http://dovecot.procontrol.fi/doc/configuration.txt http://dovecot.procontrol.fi/doc/mail-storages.txt Those are also in the main dovecot.procontrol.fi web page. They also talk about a few features not yet in CVS..

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[dovecot] replacing Courier imapd
by Sean Rima 12 Oct '02

12 Oct '02

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi folks, I currently use courier imapd, exim and ldap on my mail box. There are no users on this box, all info is taken from the ldap server. I note that dovecot does not use ldap as a backend, but curious if this in on the cards, or even mysql backend. Sean - -- Sean Rima http://www.tcob1.net Linux User: 231986 Jabber: tcobone(a)jabber.org THE VIEWS EXPRESSED HERE ARE NOT NECESSARILY THOSE OF MY WIFE. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.0 (GNU/Linux) Comment: Use GPG for Secure Mail iD8DBQE9qEs4HMnSWn2nApQRAn22AJ4xdGWfpxAuY8dLDuHM/XUAXms0mwCfZJzk ZD8cTK98j7f7CGcu1OENJXI= =BS5M -----END PGP SIGNATURE-----

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[dovecot] auth problem
by Korbinian Riedhammer 12 Oct '02

12 Oct '02

hi, im facing this problem: Fatal: can't listen in UNIX socket /var/rin/dovecot/login/ /usr/lib/dovecot/imap-login: No such file or directory Errror: child xxxxx (auth) returned error 98 any idea? - bini

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[dovecot] Benchmarks
by Timo Sirainen 10 Oct '02

10 Oct '02

Just tried Dovecot with 85k mails from Linux kernel mailing list, total of 357MB. I mostly wanted to see if the new binary tree file works well. And it does :) Nothing gets slowed down after deleting messages all around the mailbox. I tried several things with Dovecot, UW-IMAPd and Courier. You'll see that Dovecot is faster in everything else except raw I/O which is a bit strange, have to look why. I think the most important thing anyway is the time spent opening mailbox. Clients are doing "STATUS mailbox (UNSEEN)" very often and that has to be fast. With Dovecot it's so small that I didn't even bother adding it to the benchmarks, with UW-IMAPd it's 16 seconds, with courier 2 seconds. Full results can be found at http://dovecot.procontrol.fi/dovecot-benchmark.txt

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[dovecot] 0.98.4 released
by Timo Sirainen 06 Oct '02

06 Oct '02

v0.99 will be next, having the new great binary tree code which should make huge mailboxes possible. With smaller mailboxes I think it still makes it better than the old code, even while it is slower in some cases (hash lookups are faster than btree search in optimal cases). v0.98.4 2002-10-06 Timo Sirainen <tss(a)iki.fi> * Just a final release before replacing hash file with a binary tree. - When fetching messages larger than 256k, sometimes Dovecot missed to send CR causing corrupted data at end of message and possibly complete failure depending on IMAP client. - Fetching BODY or BODYSTRUCTURE for message having content-type of message/rfc822 didn't correctly add () around the envelope data. - Several fixes to make it compile with HP/UX ANSI C compiler. Also fixed several warnings it showed up.

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[dovecot] 0.98.3 released.
by Timo Sirainen 01 Oct '02

01 Oct '02

v0.98.3 2002-10-01 Timo Sirainen <tss(a)iki.fi> * Sorry, just noticed a very stupid bug which caused evolution 1.2 beta to crash. I always thought it was just evolution's fault :) - Several fields in BODY / BODYSTRUCTURE replies weren't quoted

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[dovecot] 0.98.2 released
by Timo Sirainen 30 Sep '02

30 Sep '02

Lets see if I fixed all the nasty bugs now. v0.98.2 2002-09-30 Timo Sirainen <tss(a)iki.fi> + --with-file-offset-size=32 can now be used to select 32bit file offsets. Using them should be a bit faster and take a bit less disk and memory (also needed to compile Dovecot successfully with TinyCC). + maildir_copy_with_hardlinks option works now + Check new mail and notify about it to client also after commands which don't allow full syncing (FETCH, STORE, SEARCH). Also always send RECENT after EXISTS notify. + If we're out of disk space while opening mailbox, notify about it with ALERT. - STORE and SEARCH didn't handle properly message sequence numbers when some in the middle were externally deleted - SEARCH: Only first search condition was checked. - mbox: Message flags given to APPEND were ignored. - mbox: index was corrupted when changing flags for multipart MIME messages - Out of disk space-handling wasn't working properly with .customflags file - if auth processes were killed, login processes weren't reconnecting to them

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[dovecot] 0.98.1 released
by Timo Sirainen 24 Sep '02

24 Sep '02

Guess I should have waited one more day before releasing 0.98 :) This fixes a few mbox problems and should finally make it safe to use. Also fixes a bug of not allowing to save mail larger than 8kB.

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[dovecot] 0.98 released
by Timo Sirainen 23 Sep '02

23 Sep '02

0.98 released. This release includes LOTS of bugfixes after almost 4 weeks of actual use. We've mostly tested with Outlook 2000, Outlook Express 6 and Evolution 1.0.8. I haven't heard of a single bug in maildir for several days, and mbox worked quite well first time today :) New features include vpopmail authentication, ability to run properly when there's no disk space left to allow user to delete mail, and full support for mbox. v0.98 2002-09-23 Timo Sirainen <tss(a)iki.fi> + mbox support is finally working. There's still some reliability fixes left but overall it should be quite usable. + vpopmail authentication support + We should be able to deal with "out of diskspace/quota" conditions properly, by keeping the indexes in memory and allowing user to delete mails to get more space. + Several speed enhancements + New configuration file option: overwrite_incompatible_index to force using ".imap.index" file, overwriting it if it isn't compatible - Handle invalid message headers reliably - Tons of bugfixes and code cleanups everywhere

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[dovecot] vpopmail authentication
by Timo Sirainen 20 Sep '02

20 Sep '02

CVS has now support for vpopmail authentication. .c file compiles, but I'm not sure if I did the other checks properly and if it actually works :) If someone here is using it, could you test it? At least to see if configure detects it and if it compiles/links. BTW. I think maildir support is now working quite well, 0.98 isn't far away.

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[dovecot] Problems with it
by SvR Marty 16 Sep '02

16 Sep '02

i've install it, used the example config and started tryed to access my mailbox via Outlook Express here's the syslog: Sep 14 22:42:17 p133 imap-login: Logged in. [192.168.1.8] Sep 15 00:42:17 p133 imap(svrmarty): MAIL environment missing and autodetection failed (home /home/svrmarty) Sep 15 00:42:17 p133 imap-master: child 20960 (imap) returned error 98 Sep 14 22:42:19 p133 imap-login: Logged in. [192.168.1.8] Sep 15 00:42:19 p133 imap(svrmarty): MAIL environment missing and autodetection failed (home /home/svrmarty) Sep 15 00:42:19 p133 imap-master: child 20961 (imap) returned error 98 it fails and i don't see any message

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[dovecot] v0.97 released
by Timo Sirainen 29 Aug '02

29 Aug '02

This is a major cleanup release. My near future goal is to make it impossible to crash Dovecot no matter what you did. This release also adds support for files larger than 2GB with Linux and Solaris. Also mbox support seems to work quite well now, except EXPUNGE and STORE are still not implemented. The "impossible to crash" should already be quite true, at least when it comes to index files. You can try to corrupt indexes in any way you want, and Dovecot should not crash. There's one exception to this: modifying the files while dovecot is reading them may crash it, this is too difficult to fix as long as shared memory maps are used, and I don't see much point in it anyway. I mostly want dovecot to survive corrupted files, not intentional crashing :) This release is the first I'd almost like to call beta-quality. But not quite. It still lacks testing and several features, but it's very close :) Changelog: v0.97 2002-08-29 Timo Sirainen <tss(a)iki.fi> + Large mails are handled in 256kB blocks, so mail size no longer has hardly any effect on memory usage + 64bit file offsets are used if supported by system. This means Dovecot is fully capable of handling >2G mails in those systems. With 32bit offsets >2G mails may not behave too well, but should not crash either. + I fixed lots of potential integer overflows. This should make us fully crash-free no matter what happens (index file corruption mostly). I didn't verify everything too carefully yet, so more auditing is still needed before we fully reach that goal. + Implemented several missing tasks / optimizations to index handling. It should now stay fast after longer usage periods. + New configuration file options: log_path, log_timestamp, imaps_listen + "Critical errors" are now hidden from users, ie. any error message that is not a direct reply to user error is written into log file and user gets only "Internal error [timestamp]". + Nonblocking SSL handshaking + Lots of code cleanups - Lots of mbox fixes, it seems to be somewhat reliable now - Year in Date-field was parsed wrong - Appending mail to mbox didn't work right - Always verify that mailbox names are valid (especially they shouldn't contain "../")

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[dovecot] vpopmail authentication support
by Eero Volotinen 26 Aug '02

26 Aug '02

is nice feature to get soon if possible? -- Eero

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[dovecot] status update / cvs repository
by Timo Sirainen 22 Aug '02

22 Aug '02

Past few weeks went mostly while rewriting small part of code. It really wouldn't have needed to take that long, but I always got really tired after just looking at that code for a few seconds :) Anyway, now messages are parsed in 256kB blocks (maybe I should make it configurable), so large messages don't eat all memory anymore. Maildir support seems to work with the new code, though I haven't tested it too well yet. mbox is currently broken. If you want to test it, dovecot's CVS is available with rsync. I don't think I'll bother setting up pserver since that CVS has also other sources that aren't public. With rsync you'd do it something like: # initialize new cvs repository (do it just once) cvs -d ~/cvs init # update cvs repository rsync -avz --delete dovecot.procontrol.fi::dovecotcvs ~/cvs/dovecot # checkout the sources from your cvs repository cd ~/src cvs -d ~/cvs checkout dovecot

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[dovecot] SELECT
by marcelo＠carpa.ciagri.usp.br 09 Aug '02

09 Aug '02

Hi, all. Thanks Timo for answering my previous post. It's starting fine now :) I must be doing something wrong again but I can't connect from any imap client. If I telnet to the server I get: $ telnet carpa 11143 Trying 143.107.209.25... Connected to carpa.ciagri.usp.br. Escape character is '^]'. * OK dovecot ready. a001 login marcelo ##### a001 OK Logged in. a002 select INBOX a002 NO Broken INBOX: Permission denied a003 select "" * FLAGS (\Answered \Flagged \Deleted \Seen \Draft \Recent) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft)] Flags permitted. * 246 EXISTS * 246 RECENT * OK [UNSEEN 1] First unseen. * OK [UIDVALIDITY 1028760751] UIDs valid a003 OK [READ-WRITE] Select completed. a004 close a004 OK Close completed. a005 logout * BYE Logging out a005 OK Logout completed. Connection closed by foreign host. "INBOX" seems not be a valid mailbox name to Dovecot but it works with others servers (courier, at least). The server uses Maildirs and runs qmail and courier (by now). Thanks.

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[dovecot] v0.96 released
by Timo Sirainen 08 Aug '02

08 Aug '02

This release was actually tested with reading my inbox (500+ messages, mbox, Solaris 8) using Outlook and Evolution v0.96 2002-08-08 Timo Sirainen <tss(a)iki.fi> * Changed to LGPL v2.1 license + STARTTLS support and optional disabling of plaintext authentication (LOGINDISABLED capability) + Support for custom message flags, each folder can have 26 different. + New configuration file options: imap_listen, max_logging_users, max_imap_processes + You can specify config file location to imap-master with -c <path> + All IMAP processes can now write to specified log file instead of syslog. Either do this by setting IMAP_LOGFILE environment, or give -l <path> parameter to imap-master. + Some cleanups to remove warnings with BSDs + Changed all %s .. strerror(errno) -> %m + Rewritten memory pool code - imap-master didn't close all the fds for executed processes - iobuffer code was buggy and caused the connection to terminate sometimes - make install overwrote the existing dovecot.conf file, so it's now named as dovecot-example.conf

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[dovecot] starting
by marcelo＠carpa.ciagri.usp.br 07 Aug '02

07 Aug '02

Hi. Sorry for the basic question but... how do I start the server? From inetd or in standalone mode (which binary)? Thanks

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[dovecot] mbox support
by Marcus Rueckert 07 Aug '02

07 Aug '02

hi could you explain the following sentence from the readme.txt: "mbox support is available but currently it relies a little bit on good luck, ..." what kind of luck do i need? why do you think the mbox support isnt this reliable? Marcus Rückert -- irssi - the client of the smart and beautiful people

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[dovecot] spam / updates
by Timo Sirainen 06 Aug '02

06 Aug '02

I guess I underestimated the spammers :) This list is subscribers-only now. As for dovecot, I've been cleaning the code and probably will continue with that some time. I was also thinking about moving the authentication code into separate (SASL) library which could then be plugged into other software, such as postfix.

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