- dovecot - dovecot.org

[Dovecot] Quota
by Timo Sirainen 25 Apr '05

25 Apr '05

If anyone's interested about implementing quota code for Dovecot (there were a few of you before! :), now it's finally your chance to do it quite easily. With the API changes committed today to CVS, it's now much easier to write plugins that modify mail-storage behavior. So, I finally fixed my half-working quota plugin that had been lying there for a while. It implements the RFC2087 quota commands for IMAP, a generic quota API that should allow pretty much any kind of quota implementation, and the actual quota limit checking for saving and copying mails. As an example there's an implementation which just scans through all files in a directory and sums their sizes. Currently it can be made to work only when starting from command line, eg.: export QUOTA=~/mail:storage=1024 export MODULE_DIR=/usr/local/lib/dovecot/imap ./imap The QUOTA variable is passed to the quota implementation. In this case quota-dirsize reads it, figures out that ~/mail is the directory where to count the files, and 1024kB is the maximum for quota. I think I'll change the master process code so that any unrecognized varibles that come from userdb are fed to imap/pop3 processes. That way you could simply make the userdb return the quota value (and set other user-specific settings as well). Available from: http://dovecot.org/patches/1.0/quota.tar.gz Unpack under dovecot/src, compile command is at the beginning of quota-plugin.c I'm still wondering where this code should be placed. Maybe the core implementation should be built into Dovecot, while the different quota implementations would be plugins? ..And even better would be if Dovecot's build process was modified so that it's possible to specify with configure script what to compile in and what to compile as plugins.. Anyway, comments welcome, Maildir++ implementation welcome, other implementations welcome as well :)

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[Dovecot] File isn't in mbox format - Couldn't open INBOX
by Rich West 24 Apr '05

24 Apr '05

While I saw another thread on the list similar to the issue I was experiencing (http://dovecot.org/pipermail/dovecot/2005-February/006168.html) I was wondering if there was a way around this problem (the thread simply suggested upgrading, but are the later version (specifically the 1.0-test releases) ready for prime time?)... We're periodically having this with some users (not sure what client they are using, but I am pretty sure it is MS Outlook) where the inbox is in near perfect shape except for some extra characters at the beginning of the file. POP or IMAP delivery fails with an error stating "File isn't in mbox format - Couldn't open INBOX". It looks like those characters are of a previous message that was not completely removed from the file, and those characters seem to throw everything out of wack.. It's easily correctable by removing the bogus characters from the beginning of the file, but that gets annoying quickly.. -Rich

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[Dovecot] about filtering and dovecot
by Bram Mertens 24 Apr '05

24 Apr '05

Hi I would like to set up a local mailserver but I'm getting lost with all the available options. As I have already decided to use dovecot I hope someone here will be able to point me to the right docs/HOWTO's/... Here's my wish-list: 1) download mail from my ISP's POP3-server 2) scan with spamassassin 3) scan with ClamAV 4) filter messages (mailing lists/sender/...) 5) store messages in dovecot 6) be able to read messages on my desktop (where all of the above will be running) and on my laptop 7) be able to send messages (currently using evolution) from both my desktop and laptop so sent messages are stored in dovecot (the idea is to be able to see all sent messages on both PC's) I have already created a test-account om my ISP's POP3-server, installed and configured fetchmail and dovecot. Exim has been installed as well but I haven't touched it's configuration yet. Running fetchmail manually collects the mail and stores it in /var/mail/m8ram where dovecot finds it. So I would like to know (how to find out) how I can achieve 2), 3), 4) and 7). I have looked around and have discovered that there are many programs that can do some or all of this. But I haven't been able to figure out how to get them to work with dovecot. e.g. I don't understand what I would have to change to dovecot's config if exim or procmail or whatever moves certain messages to different folders (or even where these folders would be created). Perhaps I'm missing a HOWTO that explains all this, if so please let me know. TIA Bram -- # Mertens Bram "M8ram" <bram-mertens(a)linux.be> Linux User #349737 # # debian testing kernel 2.6.8-1-686 i686 512MB RAM # # 12:40:02 up 26 days, 18:53, 9 users, load average: 0.56, 0.46, 0.29 #

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RE: [Dovecot] IMAP EXPUNGE disconnect/box hang - Fedora Core 2, Squirrelmail and Evolution
by Schettino, John Charles 24 Apr '05

24 Apr '05

Well, I just built and installed the 1.0 stable w/o tags version from source, and so far, it's not hanging/crashing the system - if this is the fix, I'm all over it :D Context: this is my problem: Correction: I'm running yum.log:03/07/05 05:48:28 Updated: dovecot 0.99.14-1.1.fc2.rf.i386 - Sorry about that. I'm a bit befuddled by this behavior. I've been using dovecot for close to a year, and recently the Fedora Core 2 Update: dovecot-0.99.13-4.FC2 build came in via yum. Since then I occasionally get this EXPUNGE disconnect error. When the error hits, the box does not crash but I can no longer log in*, nor start any new processes. I happen to have gkrellm running and I see a slow but steady climb in the # of processess. The only way to recover the box is to do a hard reset, as I cannot log in, nor su - to do a shutdown. In one case I happened to have a root shell open, and I still could not do a shutdown. Any ideas as to what I should do with this? As long as I don't expung everything is fine, but when I do expunge (move something or a filter runs in squirrelmail, or Action/Expunge in Evolution) sometimes it works fine, sometimes I get this error and a weird zombie state. It was all rock solid before this new version. Suggestions welcome - I don't seem to be getting any logging when it goes bad, perhaps I can up the log level? I'm more then happy to build the current dovecot from source, and if I should post this to some Fedora list, point me at it :D

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[Dovecot] Dovecot LDA with sieve scripting
by Timo Sirainen 23 Apr '05

23 Apr '05

I also placed dovecot-lda-0.1.tar.gz in http://dovecot.org/test/. It's also in dovecot-lda module in CVS. It's based on the same deliver binary that exists in Dovecot's sources, but I've also plugged in CMU Sieve (mostly because it was the easiest one to plug in). The code could be much prettier, but it works anyway :) I think at some point I'm going to try to make the Sieve stuff a plugin on top of the normal delivery binary. (Dovecot in general should have some pretty plugin architecture, so you could just unpack them in some directory then do ./configure --with-builtin-plugins=quota-maildir,lda-sieve --with-external-plugins=sql,ldap,quota-sql) configure needs --with-dovecot=../dovecot-1.0-test68 option. So, usage goes like I mentioned in my previous mail (uhm. should put it into README): http://dovecot.org/list/dovecot/2005-March/006512.html Sieve script is assumed to be in ~/.dovecot.sieve file. It's automatically compiled to ~/.dovecot.sievec whenever timestamp changes. If it doesn't exist, mail is stored normally into INBOX.

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[Dovecot] glue for HPUX
by rja＠surfeu.fi 23 Apr '05

23 Apr '05

Hi! Have anyone successed with hp-ux (how) ? I've compiled 0.99.14 with gcc-3.4.3 at hpux 11.11. I can telnet to port 143 and connection stays up, but I don't get any response back. It seems like dovecot "doesn't see" what I type in telnet. I tried to debug... # ps -ef | grep dovecot # gdb -tui -p 17185 /usr/local/sbin/dovecot Attaching to program: /usr/local/sbin/dovecot, process 17185 [ No Source Available ] warning: reading `r3' register: No data 0x77faff30 in _poll_sys+0x10 () from /usr/lib/libc.2 (gdb) up #1 0x77fba9ac in poll+0x6c () from /usr/lib/libc.2 (gdb) up |163 ret = poll(data->fds, data->fds_pos, msecs); >|164 if (ret < 0 && errno != EINTR) |165 i_warning("poll() : %m"); #2 0x14310 in io_loop_handler_run (ioloop=warning: reading `r8' register: No data 0x0) at ioloop-poll.c:163 (gdb) This works fine... # MAIL=mbox:~/mail /usr/local/libexec/dovecot/imap * PREAUTH [CAPABILITY IMAP4rev1 SORT... I tried also 1.0, but it hangs if .conf file is larger than ~400 bytes and the the process never goes into the background. So - I have same problems than Ajaxster... http://dovecot.org/list/dovecot/2004-December/005612.html Best Regards /Jim

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[Dovecot] password_verify in test67 with ldap
by Thomas Hummel 23 Apr '05

23 Apr '05

Hello Timo, your patch introducing pass_attr_names and user_attr_names fixed the problem of the 'shared' attr_names member of [passdb|userdb]_ldap_conn as I answered in the relative thread. Now I think there is a problem while comparing user-provided and ldap-provided passwords causing a false 'password mismatch' situation, while using PLAIN mechanism with LDAP authentication. As a matter of fact, the user provided by the user, as read in the 'mech_plain_auth_continue' function is passed as an argument in the 'auth_request_verify_plain' function which, in turns pass it to the function pointed to by 'passdb->verify_plain' (that is 'ldap_verify_plain') which doesn't use it [instead maybe of setting the 'passdb_ldap_request' 'password' field with it ?]. So once back from the LDAP request, when in 'handle_request' we call 'password_verify', the password we try to match against the one read in the LDAP db is null. Did I get it right ? Thanks -- Thomas Hummel | Institut Pasteur <hummel(a)pasteur.fr> | Pôle informatique - systèmes et réseau

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[Dovecot] dovecot-stable-latest.tar.gz - Login process died too early - shutting down
by websafe 23 Apr '05

23 Apr '05

Hello, i've installed dovecot: ./configure \ --prefix=/usr \ --sysconfdir=/etc \ --localstatedir=/var \ --enable-debug \ --with-storages=maildir && make && make install groupadd dovecot useradd -s /bin/bash -g dovecot dovecot ok, in /etc/dovecot.conf I have: # grep -v "#" /etc/dovecot.conf ###################################################################### protocols = imap ssl_disable = yes default_mail_env = maildir:/home/%u/Maildir protocol imap { login_executable = /usr/local/libexec/dovecot/imap-login mail_executable = /usr/local/libexec/dovecot/imap mail_executable = /usr/local/libexec/dovecot/rawlog /usr/local/libexec/dovecot/imap mail_modules = /usr/local/lib/dovecot/imap } protocol pop3 { } auth_executable = /usr/local/libexec/dovecot/dovecot-auth auth_verbose = yes auth_debug = yes auth default { mechanisms = plain passdb = shadow userdb = passwd user = root } ###################################################################### When I try to run: dovecot i get # tail -f /var/log/maillog: Apr 20 19:02:02 sww dovecot: Dovecot v1.0-stable starting up Apr 20 19:02:03 sww dovecot: Login process died too early - shutting down Apr 20 19:02:03 sww dovecot: imap-login: Panic: Leaked file fd 5: dev 0.6 inode 7 Apr 20 19:02:03 sww dovecot: auth(default): Panic: Leaked file fd 5: dev 0.6 inode 7 Apr 20 19:02:03 sww dovecot: child 21550 (login) killed with signal 6 Apr 20 19:02:03 sww dovecot: child 21549 (login) killed with signal 6 Apr 20 19:02:03 sww dovecot: child 21548 (login) killed with signal 6 Apr 20 19:02:03 sww dovecot: child 21547 (auth) killed with signal 6 I've got dovecot working on two other machines without any problem... Is there a way to fix this? Maybe some libs are missing? -- websafe -- websafe, http://www.partybitchez.org/

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[Dovecot] vpopmail
by Reed L. O'Brien 23 Apr '05

23 Apr '05

So I now am able to log into dovecot, authenticate but I can't see anything. Every command after login says NO error or the really cryptic just plain 'NO' I am authenticating through vpopmail and the mail users are in /home/vpopmail the dir is owned vpopmail:vchkpw and are drwx------ do I need to change something there? ( Ihave tried drwxrwxrwt perms also) Thanks r # nc localhost 143 * OK dovecot ready. a login reed(a)email.com passwd a OK Logged in. a select INBOX a NO a select cur a NO Mailbox doesn't exist: cur a select . a NO Invalid mailbox name a . a BAD Error in IMAP command .: Unknown command. # nc localhost 143 * OK dovecot ready. a login reed(a)email.com passwd a OK Logged in. a select % a NO Mailbox doesn't exist: % a CREATE INBOX a NO Internal error occured. Refer to server log for more information. [2005-04-20 11:31:25] Reed L. O'Brien Systems Engineer Focus Data Solutions, Inc. www.focusdatasolutions.com t.703.836.0080/f.703.299.0892

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[Dovecot] feature request: login in process title
by Marten Lehmann 23 Apr '05

23 Apr '05

Hello, I'm a bit afraid of users, the might slow down the server because of search requests to the imap-server on very large mailboxes. Even with a performant index, this could cause a lot of cpu and i/o-load. Is it possible to include the login-name in the imap process, so that a "ps ax" doesn't just give "imap", but e.g. "imap test(a)example.com"? Maybe it's of general interest to see in the title at which stage an imap-process is working. Regards Marten

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