- dovecot - dovecot.org

[Dovecot] Imap crashes when trying to move messages
by ambroz.bizjak＠guest.arnes.si 15 Mar '06

15 Mar '06

The imap process crashes when SquirrelMail wants to move a message to another folder. I have run imap in gdb and talked to it the same way SquirrelMail does and got a backtrace. I am using Dovecot beta3. I am using it in combination with XMail, which has maildir databases. My system is Gentoo Linux on x86. The same version of Dovecot works great for me on amd64 with exactly the same config. Here is what I gave done: janez ~ # MAIL=maildir:/chroot/xmail/var/MailRoot/domains/b4ever.net/ambro/Maildir gdb /usr/libexec/dovecot/imap GNU gdb 6.4 Copyright 2005 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i586-pc-linux-gnu"...(no debugging symbols found) Using host libthread_db library "/lib/libthread_db.so.1". (gdb) r Starting program: /usr/libexec/dovecot/imap (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) * PREAUTH [CAPABILITY IMAP4rev1 SORT THREAD=REFERENCES MULTIAPPEND UNSELECT LITERAL+ IDLE CHILDREN NAMESPACE LOGIN-REFERRALS] Logged in as root A002 SELECT "INBOX" * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 11 EXISTS * 0 RECENT * OK [UIDVALIDITY 1138230965] UIDs valid * OK [UIDNEXT 32] Predicted next UID A002 OK [READ-WRITE] Select completed. A003 EXPUNGE A003 OK Expunge completed. A004 LIST "" "INBOX.Trash" * LIST (\HasNoChildren) "." "INBOX.Trash" A004 OK List completed. A005 COPY 11 "INBOX.Trash" imap(root): Warning: Growing pool 'uidlist record_pool' with: 1024 imap(root): Panic: file mail-cache-transaction.c: line 709 (mail_cache_add): assertion failed: (fixed_size == (unsigned int)-1 || fixed_size == data_size) Program received signal SIGABRT, Aborted. 0xb7ef0ec1 in kill () from /lib/libc.so.6 (gdb) bt full #0 0xb7ef0ec1 in kill () from /lib/libc.so.6 No symbol table info available. #1 0xb7ef0c89 in raise () from /lib/libc.so.6 No symbol table info available. #2 0xb7ef1ed8 in abort () from /lib/libc.so.6 No symbol table info available. #3 0x080a5363 in data_stack_deinit () No symbol table info available. #4 0x080a54f4 in i_panic () No symbol table info available. #5 0x08086caf in mail_cache_add () No symbol table info available. #6 0x0807e74a in index_mail_cache_add () No symbol table info available. #7 0x0806896b in maildir_mailbox_list_next () No symbol table info available. #8 0x0809872b in mail_storage_copy () No symbol table info available. #9 0x080672da in maildir_copy () No symbol table info available. #10 0x08056bf1 in cmd_copy () No symbol table info available. #11 0x0805a93b in _client_input () No symbol table info available. #12 0x080ab313 in io_loop_handler_run () No symbol table info available. #13 0x080aa82e in io_loop_run () No symbol table info available. #14 0x08061997 in main () No symbol table info available. (gdb)

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[Dovecot] Strange dovecot-uidlist behavior on maildir conversion
by allen petersen 15 Mar '06

15 Mar '06

Hi. So I just moved my email over from mbox to maildir. For the most part the conversion went fine, but I had a bit of an odd thing happen when I accessed my mail through dovecot. It seems that when I ran mb2md to convert my mailboxes from mbox to maildir, I got a lot of messages created that look like 1142356176.000000.mbox:2,RS 1142356176.000421.mbox:2,S 1142356176.000001.mbox:2,S 1142356176.000422.mbox:2,RS 1142356176.000002.mbox:2,RS 1142356176.000423.mbox:2,S 1142356176.000003.mbox:2,RS 1142356176.000424.mbox:2,S and so forth. Now, that really should be fine, that I can tell; each message has the same timestamp and a different, sequential delivery identifier. However, for some reason when dovecot accessed this directory, it created UIDs for these messages like so: (from dovecot-uidlist) 1 1142362834 915 1 1142356176.000488.mbox 2 1142356176.000207.mbox 3 1142356176.000425.mbox 4 1142356176.000117.mbox 5 1142356176.000398.mbox 6 1142356176.000335.mbox I have no idea where this order came from, but it's clearly not the order that I would have expected. I would expect that dovecot would sort these messages by timestamp, followed by delivery identifier. Instead, it put them in a seemingly random order. And, of course, my email client by default shows messages in the order that it gets them from the server, so now when I look at my email all of my old messages are shuffled until I do an explicit sort by date. Any idea why this is happening? Is there some reasoning behind this, or is it just a bug? I looked through the archives a bit, but didn't find a mention of anyone else with this particular problem. I suppose I could just create the initial uid lists by hand and put them in the correct order, but that really doesn't seem like the correct solution. Or I could actually dig through the source and find out exactly what it's doing, but, well, I figure that asking the list first is easier. For reference, I'm running dovecot 0.99.14-1 on debian sarge. I though that I was doing a good job by reproducing this on the newer version my ubuntu desktop, but it turns out that it's running the same version. :) -allen

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[Dovecot] what are those .nfsXXXXX files with mbox ?
by leboeuf＠emt.inrs.ca 14 Mar '06

14 Mar '06

On Solaris 9, using: default_mail_env = mbox:~/mail:INBOX=/var/mail/%u Here is a listing of ~/mail with UW IMAP: .: total 8 drwx------ 2 testu3 sysadmin 512 Mar 14 14:40 . drwxr-xr-x 4 testu3 sysadmin 512 Mar 14 14:40 .. -rw------- 1 testu3 sysadmin 496 Mar 14 14:40 Drafts -rw------- 1 testu3 sysadmin 496 Mar 14 14:40 Sent Items with Dovecot: .: total 16 drwx------ 3 testu3 sysadmin 512 Mar 14 14:52 . drwxr-xr-x 4 testu3 sysadmin 512 Mar 14 14:40 .. drwx------ 5 testu3 sysadmin 512 Mar 14 14:52 .imap -rw------- 1 testu3 sysadmin 6 Mar 14 14:52 .nfsAEBA5 -rw------- 1 testu3 sysadmin 11 Mar 14 14:52 .nfsCEBA5 -rw------- 1 testu3 sysadmin 7 Mar 14 14:52 .nfsEEBA5 -rw------- 1 testu3 sysadmin 496 Mar 14 14:40 Drafts -rw------- 1 testu3 sysadmin 496 Mar 14 14:40 Sent Items ./.imap: total 10 drwx------ 5 testu3 sysadmin 512 Mar 14 14:52 . drwx------ 3 testu3 sysadmin 512 Mar 14 14:52 .. drwx------ 2 testu3 sysadmin 512 Mar 14 14:53 Drafts drwx------ 2 testu3 sysadmin 512 Mar 14 14:53 INBOX drwx------ 2 testu3 sysadmin 512 Mar 14 14:53 Sent Items ./.imap/Drafts: total 30 drwx------ 2 testu3 sysadmin 512 Mar 14 14:53 . drwx------ 5 testu3 sysadmin 512 Mar 14 14:52 .. -rw------- 1 testu3 sysadmin 112 Mar 14 14:53 .nfs0FBA5 -rw------- 1 testu3 sysadmin 10272 Mar 14 14:52 .nfs2FBA5 -rw------- 1 testu3 sysadmin 144 Mar 14 14:53 dovecot.index ./.imap/INBOX: total 66 drwx------ 2 testu3 sysadmin 512 Mar 14 14:53 . drwx------ 5 testu3 sysadmin 512 Mar 14 14:52 .. -rw------- 1 testu3 sysadmin 216 Mar 14 14:53 .nfs00CA5 -rw------- 1 testu3 sysadmin 17408 Mar 14 14:53 .nfs20CA5 -rw------- 1 testu3 sysadmin 360 Mar 14 14:52 .nfs5FBA5 -rw------- 1 testu3 sysadmin 10272 Mar 14 14:52 .nfs8FBA5 -rw------- 1 testu3 sysadmin 360 Mar 14 14:53 dovecot.index ./.imap/Sent Items: total 54 drwx------ 2 testu3 sysadmin 512 Mar 14 14:53 . drwx------ 5 testu3 sysadmin 512 Mar 14 14:52 .. -rw------- 1 testu3 sysadmin 88 Mar 14 14:53 .nfs40CA5 -rw------- 1 testu3 sysadmin 10272 Mar 14 14:53 .nfs60CA5 -rw------- 1 testu3 sysadmin 88 Mar 14 14:52 .nfsBFBA5 -rw------- 1 testu3 sysadmin 10272 Mar 14 14:52 .nfsDFBA5 -rw------- 1 testu3 sysadmin 144 Mar 14 14:53 dovecot.index what are the .nfsXXXXX files for ? Thanks Bertrand Leboeuf leboeuf(a)emt.inrs.ca

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[Dovecot] Rootless configuration
by James Davis 14 Mar '06

14 Mar '06

I'm trying to setup a rootless configuration so I can better manage the e-mail that comes to the mailbox of a unix account I have. I've successfully compiled Dovecot and followed the instructions for a rootless configuration, tweaking my config until Dovecot returns no errors. However I've got to a stage where upon running ~/..../sbin/dovecot it just quits with no server running and no errors. Any ideas? My rather small and basic configuration file is as follows... # Base directory where to store runtime data. base_dir = /home/jamesd/imap/dovecot/run/ # Protocols we want to be serving: protocols = imap listen = * ssl_disable = yes log_path = /home/jamesd/imap/dovecot/logs/ info_log_path = /home/jamesd/imap/dovecot/logs/ ## Login processes login_dir = /home/jamesd/imap/dovecot/run/login login_chroot = no login_user = jamesd ## IMAP specific settings protocol imap { listen = *:10143 } ## Authentication processes auth default { mechanisms = plain passdb passwd-file { args = /home/jamesd/imap/dovecot/etc/passwd } user = jamesd } Many thanks, James -- http://www.freecharity.org.uk/ - Free hosting for charities http://jamesd.ukgeeks.co.uk/

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[Dovecot] Shared maildir through namespace help...
by Brice Figureau 14 Mar '06

14 Mar '06

Hi, I'm a happy user of dovecot since the 0.99.x days, and recently switched my user base to 1.0b2. Now, to the point, I got a request (from marketing) to share a lot of maildirs between two (and possibly more) accounts. Those two accounts have differents uid/gid. The maildirs are actually in one of the account. I thought I could possibly craft a public namespace for those maildirs as explained in the wiki, but alas, it doesn't quite work as I expected: excerpt of dovecot.conf: namespace public { separator = / prefix = marketing/ location = maildir:/home/marketing/Maildir:INDEX=%h/ } users belong to the marketing group. $ find /home/marketing/Maildir -ls 4767751 4 drwxrwxr-x 3 marketing marketing 4096 Mar 14 11:57 . 4767752 4 drwxrwsr-x 6 marketing marketing 4096 Mar 14 11:59 ./Maildir 4767753 4 drwxrwsr-x 2 marketing marketing 4096 Mar 14 11:57 ./Maildir/cur 4767754 4 drwxrwsr-x 2 marketing marketing 4096 Mar 14 11:57 ./Maildir/tmp 4767755 4 drwxrwsr-x 2 marketing marketing 4096 Mar 14 11:57 ./Maildir/new 4767756 0 -rw-r--r-- 1 marketing marketing 0 Mar 14 11:57 ./Maildir/dovecot-shared >From there, the namespace is visible from all the IMAP accounts. Now, if a user creates a new folder in this public namespace, here is what I get: 4767757 4 drwx--S--- 5 brice marketing 4096 Mar 14 12:05 ./Maildir/.test 4767758 4 drwx--S--- 2 brice marketing 4096 Mar 14 11:59 ./Maildir/.test/cur 4767759 4 drwx--S--- 2 brice marketing 4096 Mar 14 11:59 ./Maildir/.test/new 4767760 4 drwx--S--- 2 brice marketing 4096 Mar 14 11:59 ./Maildir/.test/tmp 4767761 0 -rw-r--r-- 1 brice marketing 0 Mar 14 11:59 ./Maildir/.test/dovecot-shared 4767762 4 -rw------- 1 brice marketing 6 Mar 14 11:59 ./Maildir/subscriptions As you can see: the cur,new,tmp dir don't have the right permissions (they're not rw for the group), and moreover, the 'subscriptions' file has the same problem. The result is that any other user don't have access to this directory even if it is in a public namespace. Now, the question, is: is that setup could work only with virtual users setup with a static uid/gid ? Is there a mean to implement what I want ? Does using symlinks instead of the namespace could work ? Regards, -- Brice Figureau <brice+dovecot(a)daysofwonder.com>

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[Dovecot] operation not supported ?
by Frank Bonnet 14 Mar '06

14 Mar '06

Hello I have this error message in the errorlog but I configured dovecot to use /var/mail/%u anyone could explain ? dovecot: Mar 14 10:49:36 Error: imap(xxxxxx): flock() failed with file /user/xxxxxx/Mail/.imap/INBOX/dovecot.index.log: Operation not supported Thank you

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[Dovecot] mbox to maildir conversion - good idea regarding Outlook?
by Gerhard Hofmann 14 Mar '06

14 Mar '06

Hi list, first of all, many thanks to the Dovecot authors for supplying an IMAP server that works well with M$-Outlook! I have used UW-imapd for quite a while and was annoyed by frequent "imap...timeout..." error messages. Now I'd like to give maildir format a try because I want to use email sub-folders. What are other Outlook users' experiences with maildir? Is it as stable as mbox? Regards Gerhard

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RE: [Dovecot][solved] imap permission denied
by Roland Schmid 13 Mar '06

13 Mar '06

> You better take a look at doc/mail-storages.txt as stated in the comments > of the configuration file. > thanks, now it works. The dovecot.conf was wrong configured and the permissions in the /home folders where given not correctly Now we are able to read our mail with outlook and via SquirellMails Kind regards, Roland

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Re: [Dovecot] Migrating UW-IMAP to Dovecot on Solaris 9
by Bertrand Leboeuf 13 Mar '06

13 Mar '06

Works well if I use default_mail_env = mbox:~/mail/:INBOX=/var/mail/%u but everything stays in mbox format How can I set new users to Maildir format, old ones with mbox, If I use default_mail_env = maildir:%h/Maildir mailboxes get created in Maildir but I don't get any new email the new emails are sent to /var/mail/%u right now. > >if you're using wu-imap, you'll need this for pop to work. > >pop3_uidl_format = %08Xv%08Xu > >and if your site is relatively big, dovecot may run out of file >descriptors, you may need to use this. > >/usr/bin/plimit -n 8192,8192 `cat /usr/local/var/run/dovecot/master.pid` > > >and watch the logs :) > > >> In the process of migrating to Dovecot 1.0beta3, any tips or >> step-by-step instructions that might relate to Solaris 9. >> >> Thanks >> >> Bertrand Leboeuf >> leboeuf(a)emt.inrs.ca >> >> >

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[Dovecot] tls
by lenny＠edpausa.com 13 Mar '06

13 Mar '06

is it possible to turn off TLS and only SSL ? The reason are many reasons for this, one major being the fact that TLS is automatically discovered by many clients on the standard ports, thus requiring a valid cert for production use, while SSL could be set up on some unknown to anybody port with self signed cert for testing, etc... thank you

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