- dovecot - dovecot.org

[Dovecot] Advice, Converting a Live/Production server.
by Michael Dilworth 26 Jan '07

26 Jan '07

I want to mess with a live server. (a Bad thing). I have googled until my eyes boogled, wiki'ed until my fingers are wonked, have read as much as I can read, however I'm left with a few questions/worries. Issue: I am currently running Dovecot as a pop3 server with standard /var/mail mbox's I would like to run a mixed Imap/Pop3 server with ~/maildir inbox's The thread http://www.dovecot.org/list/dovecot/2006-February/011304.html is fairly close to what I want to do, but I would like to go ahead and convert to maildir. (Mixed pop3/imap access for each user) I don't have a system to test, "I used have one but it's now the production server... PW/Disk failed, thank G-D(s) for rsync/backups". Setup: procmail, dovecot 1.0 beta 8.2 (fc5), squirrelmail. all users use outlook (2000,2003) or outlook express (random versions) (^^^^ not my choice, I just have to deal with it {and use it} ^^^^^) the majority of users will continue to use pop3, however some would like to convert to imap and have all mail stored on the server. Questions: /etc/procmailrc? just set default to ~/maildir? do I need to define "INBOX"? aka $MAILDIR=~/maildir/, $ORGMAIL=~/maildir/, $DEFAULT=~/maildir/ Same as above, what about new/cur should I set up a /etc/skel? close to above, if I create rules, for spam, etc. do I need to worry about cur/new. close to above, what about Sent Items, Drafts etc... for imap users, I do understand that client rules would likely be needed to store sent items. conversion, anything to look for? mb2md seems to work, but some users have "don't delete from server set", will they get dups? (I can live with this) archiving, can I (or a script) mess with the files in the maildir? aka keep the number of files/messages less than 16k for the outlook users. Bugs, should I cool my heals, and wait for rc16 or 1.0 final? I am currently running problem free, and I do hate to mess with something which is not busted. TIA Michael.

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[Dovecot] Dovecot POP3 fails to chdir under FC6
by James A. McDonald 26 Jan '07

26 Jan '07

I started the Dovecot POP3 server under Fedora Core 6 (rpm dovecot-1.0-1.1.rc15.fc6), but some users couldn't connect, with /var/log/maillog show the message Jan 24 13:20:00 mmace dovecot: chdir(/branch/home/mmace) failed with uid 205: Permission denied Jan 24 13:20:00 mmace dovecot: child 18792 (pop3) returned error 89 (I had already edited first_valid_UID in /etc/dovecot.conf to allow UID's >= 200.) However, only users who had their home directory under /branch/home couldn't connect. Users with homedirs under /home connected via POP3 just fine. I found out POP3 connection failures also logged an error to /etc/messages: Jan 24 13:20:00 mmace kernel: audit(1169662800.479:160): avc: denied { search } for pid=18792 comm="dovecot" name="/" dev=sda3 ino=2 scontext=system_u:system_r:dovecot_t:s0 tcontext=system_u:object_r:mnt_t:s0 tclass=dir So, selinux was the culprit. My home directories had the right selinux security context, but the root of the disk holding those home directories (/branch is a separate disk drive) had a security context (system_u:object_r:mnt_t) that Fedora's selinux rules for dovecot did not allow. I changed the context of /branch to system_u:object_r:usr_t, and dovecot POP3 access worked for all users.

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[Dovecot] 1.0.rc19 released
by Timo Sirainen 26 Jan '07

26 Jan '07

http://dovecot.org/releases/dovecot-1.0.rc19.tar.gz http://dovecot.org/releases/dovecot-1.0.rc19.tar.gz.sig Just did a few more fixes to index files. Do they help with anyone's problems? - ACL plugin didn't work unless control dir was separate from maildir - More index file handling fixes

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[Dovecot] FS quota problem on Solaris10
by Kevin Richter 25 Jan '07

25 Jan '07

Hi, it seems, that I have a quota problem: kric0999@servername:~ $ quota -v Disk quotas for kric0999 (uid 1234): Filesystem usage quota limit timeleft files quota limit timeleft /home 1188850 0 1500000 0 0 0 You see: I have a quota: 1,2GB from 1,5GB The sent-mail, trash, drafts mboxes are in /home/kric0999/mail/ Why does Thunderbird say: "There are no storage quotas on this folder" f.ex when looking at the properties of sent-mail The log says: dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): Loading modules from directory: /opt/dovecot-1.0.rc19/lib/dovecot/imap dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): Module loaded: /opt/dovecot-1.0.rc19/lib/dovecot/imap/lib10_quota_plugin.so dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): Module loaded: /opt/dovecot-1.0.rc19/lib/dovecot/imap/lib11_imap_quota_plugin.so dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): mbox: data=/home/kric0999/mail/:INBOX=/var/mail/kric0999 dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): mbox: root=/home/kric0999/mail, index=/home/kric0999/mail, inbox=/var/mail/kric0999 dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): fs quota add storage dir = /home/kric0999/mail dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): fs quota block device = auto_home dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): fs quota mount point = /home Any ideas? Greets, Kevin Richter

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[Dovecot] X-UID gaps cause Dovecot/IMAP to hang
by Benjamin Howell 25 Jan '07

25 Jan '07

Hi, When the Dovecot 1.0.rc19 IMAP server encounters X-UID headers with gaps in them, it hangs indefinitely. I've attached a sample mailbox (in mbox format) which repeatably exhibits this behavior. The mbox contains only three messages with the following X-UIDs in order: 774, 785, 787. If I remove the X-UID headers from each message, Dovecot handles the mailbox without any problems. UW-IMAP is able to handle the sample mbox _with_ X-UID headers. A full backtrace is also included. When Dovecot hangs, it appears to continually lock and unlock the mailbox. I'm using dotlocking so a mailbox.lock file appears and disappears constantly. I have to kill the process to log back in. I'm not familiar enough with Dovecot to offer a patch, but if anybody feels they can fix this or needs more information, please let me know. Regards, Benjamin Howell bhowell(a)iglou.com

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[Dovecot] logging pop3 fetch time
by Zbigniew Szalbot 25 Jan '07

25 Jan '07

Hello, Is it possible with dovcot (rc7) to log how long it takes to complete downloading mail? If so, what do I have to set in the conf file? Thank you! -- Zbigniew Szalbot

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[Dovecot] Dovecot website
by Luigi Rosa 25 Jan '07

25 Jan '07

I think that the Dovecot website is down/unreachable, at lest from a couple of Italian IPs Ciao, luigi -- / +--[Luigi Rosa]-- \ Old programmers never die, they just hit account block limit.

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[Dovecot] rc18->rc19: read/unread/reply flags broken
by Jeff A. Earickson 25 Jan '07

25 Jan '07

Timo, This might be a bit vague, but I have noticed that rc19 seems to have broken the read/unread/reply flags in imap. My officemate has had problems with messages that are read and marked as read then mysteriously get remarked as unread the next time email is checked. I've had problems where I reply to a message and it does not get marked as "answered". We didn't see this with rc18 and earlier. My setup: Solaris 10, sparc, T2000 system. rc19 (now back to rc18), using mbox format. system mailbox is NFS mounted from another Sun Solaris 10 system, homedirs and dovcot cache files are on local zfs filesystems. Jeff Earickson Colby College

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Re: [Dovecot] X-UID: 4085788205 != 2147483647
by Timo Sirainen 25 Jan '07

25 Jan '07

On 24.1.2007, at 2.49, Stephen Gowing wrote: > It *is* possible to force a large X-UID, if the user has an empty > inbox > (tested on rc15). Yes, but only if it's the very first message for the user. Afterwards even if user expunges all the messages, there are two things that prevent this from being possible: index files and the UW-IMAP style "FOLDER INTERNAL DATA" message. You could also prevent this completely by stripping the X-UID header in your SMTP server or LDA. For example Dovecot LDA strips all the Dovecot's internal metadata headers. I guess the UID renumbering could be done some day, but for now I think it's just way too much trouble with not that much benefits.

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[Dovecot] dovecot LDA 'deliver' and aliases
by Michael Pulk 25 Jan '07

25 Jan '07

Dovecot LDA (deliver) aliases question. I have a multiple virtual domain setup using sendmail, username/domain, password, home directory all stored in mysql,Set-UID/GID for dovecot 'deliver' setup as referenced in Dovecot LDA wiki. Delivery, and POP/IMAP work just fine, serving a mail store in /home/vmail/domain/username type of setup. My problem comes from what may be a misunderstanding on my part on how to setup aliases for some virtual users. I have the mailer specification for dovecot defined, and my mailertable and (access) tables setup for each domain, with an entry like this for each domain in mailertable: domain.com dovecot:dovecot and since I also function as SMTP relay for each customer, I also have an entry in in access domain.com RELAY and the tables are made with hash... this all appears to work just fine, except when I want to alias a certian email address. Lets say that I have one email in the domain that needs to be forwarded to another remote account (on another server), I would normally accomplish this with an entry in virtusertable something like this: sales(a)domain.com <mailto:sales@domain.com> user(a)otherdomain.com <mailto:user@otherdomain.com> but when using dovecots' deliver as the LDA specified for domain.com in mailertable, this appears to be ignored, with the email being returned undeliverable (if sales(a)domain.com <mailto:sales@domain.com> doesn't exist), or being delivered to sales(a)domain.com <mailto:sales@domain.com> (if the account exists in the mysql table). I have also tried creating the account, and placing a .forward file in the appropriate /home/vmail/domain/user directory, but this also appears to be ignored. Does anyone have some advice on how to implement such an ability? I am running dovecot-1.0.rc17, sendmail-8.13.1-3.RHEL4.5, mysql-4.1.20-1.RHEL4.1 on Centos 4.4 Sincerely Michael P.

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[Dovecot] NEWBIE: configuring all virtual users...
by AJ Weber 24 Jan '07

24 Jan '07

OK, I'm trying to filter-through all the different WiKi and docs about how to configure all virtual users. Now, there's only going to be a few, and it's a secure env, so I'm going to try and configure a custom passwd file (or whatever trimmed-down version I can do), basically to do usernames, passwords, and MBOX dirs. I'm only planning on serving POP3 mail to my clients. I have a location to create MBOX files -- it will be in a specific directory, with sub-dirs for each user; sort of a /home/VU/%u/mbox . I'm really confused as to what add'l info I need to include like "INDEX" and "INBOX" on the mail_location info. Does anyone have any info and/or examples on how to configure my .conf file and create a minimal passwd file for these virtual users? Thanks in advance, AJ

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[Dovecot] [sfs@tc.umn.edu: Re: dovecot-auth file descriptor usage]
by Steven F Siirila 24 Jan '07

24 Jan '07

I hate to be a pest, but are there any revelations on file descriptor "overusage" by dovecot-auth? ----- Forwarded message from Steven F Siirila <sfs(a)tc.umn.edu> ----- Date: Sat, 20 Jan 2007 12:42:50 -0600 From: Steven F Siirila <sfs(a)tc.umn.edu> To: Dovecot Mailing List <dovecot(a)dovecot.org> User-Agent: Mutt/1.4.2.1i Subject: Re: [Dovecot] dovecot-auth file descriptor usage Okay, here is one which has closed fds 0 and 1, so I presume it is proxying SSL: 11988: imap-login Current rlimit: unlimited file descriptors 2: S_IFIFO mode:0000 dev:295,0 ino:2692866 uid:0 gid:1 size:0 O_RDWR 4: S_IFCHR mode:0644 dev:287,0 ino:99614726 uid:0 gid:3 rdev:190,1 O_RDONLY|O_LARGEFILE FD_CLOEXEC /devices/pseudo/random@0:urandom 5: S_IFIFO mode:0000 dev:295,0 ino:2692868 uid:65 gid:65 size:0 O_RDWR FD_CLOEXEC 6: S_IFIFO mode:0000 dev:295,0 ino:2692868 uid:65 gid:65 size:0 O_RDWR FD_CLOEXEC 7: S_IFSOCK mode:0666 dev:293,0 ino:33376 uid:0 gid:0 size:0 O_RDWR|O_NONBLOCK SOCK_STREAM SO_REUSEADDR,SO_KEEPALIVE,SO_SNDBUF(49152),SO_RCVBUF(49640),IP_NEXTHOP(0.0.193.232) sockname: AF_INET 134.84.119.102 port: 143 peername: AF_INET 160.94.23.17 port: 38847 8: S_IFSOCK mode:0666 dev:293,0 ino:63591 uid:0 gid:0 size:0 O_RDWR|O_NONBLOCK SOCK_STREAM SO_SNDBUF(16384),SO_RCVBUF(5120) sockname: AF_UNIX peername: AF_UNIX default 9: S_IFSOCK mode:0666 dev:293,0 ino:43728 uid:0 gid:0 size:0 O_RDWR|O_NONBLOCK SOCK_STREAM SO_SNDBUF(16384),SO_RCVBUF(5120) sockname: AF_UNIX On Fri, Jan 19, 2007 at 11:34:44PM +0200, Timo Sirainen wrote: > On Wed, 2007-01-17 at 12:57 -0600, Steven F Siirila wrote: > > Doh! Here's another one (took 3 more trials to nab one): > > > > 29058: imap-login > > Current rlimit: unlimited file descriptors > > 0: S_IFSOCK mode:0666 dev:293,0 ino:63436 uid:0 gid:0 size:0 > > O_RDWR|O_NONBLOCK > > SOCK_STREAM > > SO_REUSEADDR,SO_KEEPALIVE,SO_SNDBUF(49152),SO_RCVBUF(49152),IP_NEXTHOP(0.0.192.0) > > sockname: AF_INET 0.0.0.0 port: 143 > > 1: S_IFSOCK mode:0666 dev:293,0 ino:42189 uid:0 gid:0 size:0 > > O_RDWR|O_NONBLOCK > > SOCK_STREAM > > SO_REUSEADDR,SO_KEEPALIVE,SO_SNDBUF(49152),SO_RCVBUF(49152),IP_NEXTHOP(0.0.192.0) > > sockname: AF_INET 0.0.0.0 port: 993 > > Almost, but not quite :) File descriptors 0 and 1 are open only when the > process is listening for new connections (for ports 143 and 993). So > this process wasn't proxying SSL. > > > 2: S_IFIFO mode:0000 dev:295,0 ino:2456463 uid:0 gid:1 size:0 > > O_RDWR > > This is logging pipe. > > > 3: S_IFSOCK mode:0666 dev:293,0 ino:37418 uid:0 gid:0 size:0 > > O_RDWR > > SOCK_STREAM > > SO_SNDBUF(16384),SO_RCVBUF(5120) > > sockname: AF_UNIX > > Connection to master process. > > > 4: S_IFCHR mode:0644 dev:287,0 ino:99614726 uid:0 gid:3 rdev:190,1 > > O_RDONLY|O_LARGEFILE FD_CLOEXEC > > /devices/pseudo/random@0:urandom > > /dev/urandom. > > So it hasn't actually yet even connected to dovecot-auth. -- Steven F. Siirila Office: Lind Hall, Room 130B Internet Services E-mail: sfs(a)umn.edu Office of Information Technology Voice: (612) 626-0244 University of Minnesota Fax: (612) 626-7593 ----- End forwarded message ----- -- Steven F. Siirila Office: Lind Hall, Room 130B Internet Services E-mail: sfs(a)umn.edu Office of Information Technology Voice: (612) 626-0244 University of Minnesota Fax: (612) 626-7593

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[Dovecot] pop/imap login logging only username part of full email address
by Justin McAleer 24 Jan '07

24 Jan '07

I have my login log format set like so: login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c When I log in using a full email address, though, I only get the username part of the address: Jan 24 13:28:29 node7 dovecot: pop3-login: Login: user=<justin>, method=PLAIN, rip=137.118.2.60, lip=137.118.7.247 Jan 24 13:28:30 node7 dovecot: POP3(justin): Disconnected: Logged out top=0/0, retr=0/0, del=0/717, size=15797460 Is that behavior intentional? If so, can it log the full username as given by the client instead? Anyone with multiple domains probably wants to see the domain part. Changing %u to %n yields the same log entry, and %d seems to be empty so nothing gets logged if I try to log that.

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[Dovecot] More AFS maildir debugging
by Aaron Solochek 24 Jan '07

24 Jan '07

There appears to be some sort of a race condition when accessing a maildir directory for the first time with dovecot. I was getting a non-specific error trying to select INBOX, but when I stepped through it with a debugger it worked. Deleting the dovecot files and running the select again it failed. I started playing with it again just now, and when attempting to access Sent, I actually got some errors: a04 select Sent imap(aarons): Error: Corrupted transaction log file /XX/Maildir/.Sent/dovecot.index.log: unexpected end of file while reading header imap(aarons): Error: Corrupted transaction log file /XX/Maildir/.Sent/dovecot.index.log: unexpected end of file while reading header imap(aarons): Error: Corrupted transaction log file /XX/Maildir/.Sent/dovecot.index.log: unexpected end of file while reading header a04 NO Internal error occurred. Refer to server log for more information. [2007-01-13 16:17:51] I then deleted dovecot.index.log and dovecot.index.log.2 (the only two dovecot files that were present) and retried the select: a04 select Sent a04 NO Internal error occurred. Refer to server log for more information. [2007-01-13 16:23:40] Does anyone more familiar with the code than myself have any pointers of where to concentrate my debugging efforts? Thanks. -Aaron

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[Dovecot] dovecot-acl file location in rc18
by Radek Zavicak 24 Jan '07

24 Jan '07

Hi, I'm trying to use ACL with dovecot rc18 but I don't understand where to store per-mailbox dovecot-acl file. In dovecot.conf I have mail_location = maildir:/var/vmail/%u/ and I do not use namespaces. I have some "testuser" maildir with subdir ".test". When I put dovecot-acl file to the .test directory I get this error in my log file: Error: IMAP(testuser): /var/vmail/testuser/.test/dovecot-acl is no longer kept in control directory, move it to the actual maildir (/var/vmail/testuser/.test) Error: child 28143 (imap) returned error 89 This error tells me to move dovecot-acl file from control dir to mail directory but these are the same for me (and I think it's Dovecot default for maildir). Where I should store per-mailbox dovecot-acl file in this case? Regards, Radek Zavicak

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[Dovecot] too many open files error when using quota plugin
by Justin McAleer 24 Jan '07

24 Jan '07

With the quota plugin loaded (even with a quota value of 0), I get errors like the following: open(/var/mailstore/01/1a/301620/Maildir/cur/1169654988.P22440Q0M696852.<hostname stripped>,S=4437552:2,Sbc) failed: Too many open files To do this, I have a folder with about 700 messages and I tell Thunderbird to run junkmail controls on it (fetches all messages). Watching an strace on the imap process I'm connected to, the problem seems to be when the plugin goes to close the maildirsize file, it's not closing the correct file descriptor: open("/var/mailstore/01/1a/301620/Maildir/./maildirsize", O_RDWR|O_APPEND) = 1016 read(1016, "1024S\n395 1\n397 1\n", 5120) = 18 read(1016, "", 5102) = 0 close(4294967295) = -1 EBADF (Bad file descriptor) It closes that same descriptor every time. On a side note, I'm just curious why it needs to read the maildirsize file for a fetch request anyway?

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[Dovecot] building with SSL support in non-std directories
by AJ Weber 24 Jan '07

24 Jan '07

I'm trying to get configure to find the right libs/includes to build with SSL support (openssl), but it just seems to refuse! I tried passing " --with-ssl=openssl --with-ssldir=/usr/local/ssl ", but this didn't seem to help. In /usr/local/ssl is: drwxr-xr-x 2 root root 4096 2006-12-11 13:25 bin drwxr-xr-x 2 root root 4096 2006-12-11 12:15 certs drwxr-xr-x 3 root root 4096 2006-12-11 12:15 include drwxr-xr-x 4 root root 4096 2006-12-11 13:25 lib drwxr-xr-x 6 root root 4096 2006-12-11 12:15 man drwxr-xr-x 2 root root 4096 2006-12-11 13:25 misc -rw-r--r-- 1 root root 9374 2006-12-11 13:25 openssl.cnf drwxr-xr-x 2 root root 4096 2006-12-11 12:15 private Can someone tell me what it's looking for and how to properly tell it to compile in the SSL support??? Thanks, AJ

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[Dovecot] rc18 dies with Query: LSUB "" "*" failed on Squirrelmail
by Gavin Henry 24 Jan '07

24 Jan '07

Just upgraded, and then had to downgrade straight away. Couldn't get our Squirrelmail page up. Logged in fine etc. but got: Query: LSUB "" "*" failed, refer to server logs etc. Nothing in logs that shows error with mail_debug=yes What should I be looking for? Gavin. -- Kind Regards, Gavin Henry. Managing Director. T +44 (0) 1224 279484 M +44 (0) 7930 323266 F +44 (0) 1224 824887 E ghenry(a)suretecsystems.com Open Source. Open Solutions(tm). http://www.suretecsystems.com/

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[Dovecot] default_pass_scheme = PLAIN-MD5 dont work :(
by mancausoft 24 Jan '07

24 Jan '07

I config postfix+mysql+dovecot for SASL SMTP autentication. It works if set: default_pass_scheme = PLAIN and store plain-text password in mysql I'm change default_pass_scheme = PLAIN with default_pass_scheme = PLAIN-MD5 an store password in mysql with md5('passwd') and dovecotpw -s PLAIN-MD5 -p test {PLAIN-MD5} and md5("test") = 098f6bcd4621d373cade4e832627b4f6 but don't work: Jan 24 13:02:31 domain postfix/smtpd[18461]: connect from [x.x.x.x] Jan 24 13:02:37 domine dovecot: auth-worker(default): mysql: Connected to localhost (mail_info) Jan 24 13:02:39 domain postfix/smtpd[18461]: warning: [x.x.x.x]: SASL CRAM-MD5 authentication failed: PDI3Nac3ODA2NjQ0Njg4MzMuMTE2OTY0Mzc1N0BrbHVnY3QtY3Jldz4= Jan 24 13:02:40 domain postfix/smtpd[18461]: lost connection after AUTH from [x.x.x.x] Why?? where are the errors?? -- Email.it, the professional e-mail, gratis per te: http://www.email.it/f Sponsor: Questo inverno scaldale il cuore, con il prezioso calore di un Diamante. * Non lasciarti sfuggire lo sconto del 20% riservato a te! Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=5630&d=24-1

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[Dovecot] dovecotpw/sql crypt scheme core dump with rc17-19
by Andre Dalle 24 Jan '07

24 Jan '07

Platform is Solaris 8 on a 280R. I'm setting up a new installation of Dovecot, and I ran into some troubles that I've partly tracked down. I setup auth/user dbs with LDAP initially, and things worked well. Passwords are stored as "{crypt}zxcv..." in LDAP. I setup SQL, and began getting this: dovecot: Jan 23 16:37:47 Error: child 8718 (auth-worker) killed with signal 11 Passwords are stored as "zxcv..." in SQL. I changed default_pass_scheme from CRYPT to PLAIN, and no troubles. I then tried dovecotpw: dovecotpw -p 123 -s PLAIN-MD5 {PLAIN-MD5}202cb962ac59075b964b07152d234b70 dovecotpw -p 123 -s CRYPT Segmentation Fault (core dumped) So I then tried this: truss dovecotpw -p 123 -s crypt open64("/dev/urandom", O_RDONLY) = 3 read(3, "F80E82 c", 4) = 4 fcntl(3, F_GETFD, 0x00000000) = 0 fcntl(3, F_SETFD, 0x00000001) = 0 open64("/usr/local/lib/dovecot/auth/password", O_RDONLY|O_NDELAY) Err#2 ENOENT read(3, "8382", 2) = 2 Incurred fault #6, FLTBOUNDS %pc = 0xFF0E3304 siginfo: SIGSEGV SEGV_MAPERR addr=0x00000005 Received signal #11, SIGSEGV [default] siginfo: SIGSEGV SEGV_MAPERR addr=0x00000005 *** process killed *** Suffice to say, there is no "/usr/local/lib/dovecot/auth/password". I'm guessing that the dovecot auth-worker process is failing for the same reason but I don't know how to debug that one. I have core files for the dovecotpw process. -- André Dalle Systems Administrator NCF Internet

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[Dovecot] All index file bugs fixed(?)
by Timo Sirainen 23 Jan '07

23 Jan '07

I fixed the nightly snapshot building. Now it's again being built every night (if there have been any changes). Please test it before I'll make rc18 release. http://dovecot.org/nightly/dovecot-latest.tar.gz I've also been stress testing a lot with http://dovecot.org/tools/imaptest.c. Last night I ran it for 9 hours with mmap_disable=yes and it picked up only one race condition, which is also now fixed. I'll run the next night with mmap_disable=no and see if anything shows up with it. I'm hopeful that there aren't any important index file related bugs left anymore. This is actually the first time in Dovecot's existence that I'm really not aware of *any* bugs in index file handling. v1.0 release should be really near now, unless you figure out new problems :) Here's a list of bugs that should have been fixed since rc17: "Corrupted index file dovecot.index: Record field keywords points outside record size (12 < 12+2)" "Corrupted Index file dovecot.index: Record [1].uid=0" Crashes - http://dovecot.org/list/dovecot-cvs/2007-January/007395.html "open() failed with file dovecot.index.log: No such file or directory" - http://dovecot.org/list/dovecot-cvs/2007-January/007405.html "Fixed index file dovecot.index: seen_messages_count 8 -> 9" "View synchronization from transaction log failed: Deleted counter wrong" etc. - http://dovecot.org/list/dovecot-cvs/2007-January/007403.html Corrupted transaction log errors: - http://dovecot.org/list/dovecot-cvs/2007-January/007389.html - http://dovecot.org/list/dovecot-cvs/2007-January/007393.html Corrupted view errors: - http://dovecot.org/list/dovecot-cvs/2007-January/007366.html - http://dovecot.org/list/dovecot-cvs/2007-January/007368.html Corrupted cache file errors: - http://dovecot.org/list/dovecot-cvs/2007-January/007364.html Fixed a lot of crashes whenever something went wrong (I deleted index files every 3 seconds until it crashed, last run went for several minutes before I stopped trying): - http://dovecot.org/list/dovecot-cvs/2007-January/007397.html

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[Dovecot] 1.0.rc18 released
by Timo Sirainen 23 Jan '07

23 Jan '07

http://dovecot.org/releases/dovecot-1.0.rc18.tar.gz http://dovecot.org/releases/dovecot-1.0.rc18.tar.gz.sig I think we're quite near v1.0 now. * ACL plugin + Maildir: Moved dovecot-acl file from control directory to maildir. To prevent accidents caused by this change, Dovecot kills itself if it finds dovecot-acl file from the control directory. * When opening a maildir, check if tmp/'s atime is over 8h old. If it is, delete files in it with ctime older than 36h. However if atime - ctime > 36h, it means that there's nothing to be deleted and the scanning isn't done. We update atime ourself if filesystem is mounted with noatime. * base_dir doesn't need to be group-readable, don't force it. * mail_read_mmaped setting is deprecated and possibly broken. It's now removed from dovecot-example.conf, but it still works for now. * Removed also umask setting from dovecot-example.conf since currently it doesn't do what it's supposed to. + Authentication cache caches now also userdb data. + Added mail_log plugin to log various mail operations. Currently it logs mail copies, deletions, expunges and mailbox deletions. - dict quota: messages=n parameter actually changed storage limit. - A lot of fixes to handling index files. This should fix almost all of the problems ever reported. - LDAP: auth_bind=yes was more or less broken. - Saved mails and dovecot-keywords file didn't set the group from dovecot-shared file. - Fixed potential assert-crash while searching messages - Fixed some crashes with invalid X-UID headers in mboxes - If you didn't have a namespace with empty prefix, giving STATUS command for a non-existing namespace caused the connection to give "NO Unknown namespace" errors for all the future commands.

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[Dovecot] Dovecot-1.0.rc17 on Solaris10 = assert_error
by Kevin Richter 23 Jan '07

23 Jan '07

Hi, i have a problem with dovecot rc17 on Solaris10. I have compiled Dovecot and openSSL in 32bit: CFLAGS="-I/opt/openssl-0.9.7l/include" LDFLAGS="-L/opt/openssl-0.9.7l/lib -R/opt/openssl-0.9.7l/lib" ./configure --prefix=/opt/dovecot-1.0.rc17 --with-ssl=openssl --with-ssldir=/opt/openssl-0.9.7l --enable-shared --disable-ipv6 --with-file-offset-size=32 make and make install ran without errors or warnings. The /opt/dovecot-1.0.rc17/var/log says: dovecot: Jan 16 11:20:05 Error: IMAP(kric0999): file lib.c: line 13 (nearest_power): assertion failed: (num <= ((size_t)1 << (BITS_IN_SIZE _T-1))) The error occures whenever i start my mail client and the authorization is successful. Cam anyone help me? Regards, Kevin Richter

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[Dovecot] Current state of mulit-server NFS setups
by Justin McAleer 23 Jan '07

23 Jan '07

Hi list, I've been perusing the list archives, but I couldn't find a recent, definitive answer to what I'd like to know. I'm looking to set up a new batch of servers to migrate ~160,000 accounts, spread across several domains, onto (from CommuniGate). Last year I worked with the earlier beta/RC versions of Dovecot, so I'm generally familiar with the setup required. However, a lot of development has been done since I was last dealing with it. So, what I'd like to end up with is a load balanced group of servers providing pop and imap access with quota support using an NFS filesystem. We have a new Netapp device (forget the actual model) that can do SAN/iSCSI/NFS. We tried using various clustered filesystems previously, but the performance/stability issues were a nightmare, so I've fallen back to NFS (or perhaps SAN if users can't hit any server in the group). So, what does my dovecot setup need to be? I've seen some people say they disable indexing in the LDA, but allow pop/imap to index. Some say the attribute cache needs to be disabled, which I'd think would be worse than just disabling indexes. Some say indexes should be kept on local disk (dedicated server for users), and others seem to report problems even when doing so. Is there a general consensus? I was also wondering if dovecot's sanity checking on the indexes would allow each server in a balanced group to keep indexes on local disk (so if the maildir has changed on another server, dovecot rebuilds it). If so, does that take away all performance gains from having indexes at all? Thanks for any info you all can provide.

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[Dovecot] Maildir Quota backend
by Ioannis Zachariadis 23 Jan '07

23 Jan '07

Hi, I've noticed that in the maildir backend for the quota plugin the quota limit is being read in kilobytes. In the quota-maildir.c at maildir_quota_init() , line 550 (rc18) if (strncmp(*args, "storage=", 8) == 0) { size = strtoull(*args + 8, NULL, 10) * 1024; if (size != 0) root->message_bytes_limit = size; root->master_message_limits = TRUE; } The value that's being read from storage is supposed to be in kB, at least that's what I understand from the wiki, and then the value of size is stored in bytes. thanks -- giannis.

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