- dovecot - dovecot.org

[Dovecot] proxy mode
by Jernej Porenta 13 Oct '06

13 Oct '06

Hello, I've searched the documentation for IMAP/POP3 server with proxy feature, but wiki says that this is not fully implemented yet, but wiki page hasnt been updated for a while. So is there any change since then? Because we are looking for a solution to replace the perdition POP3/IMAP proxy in front of the current UW-IMAP servers and we would really appreciate this feature, since the documentation says that proxy implementation in dovecot does not create a process for every user (problem with large number of concurrent users). Thanks in advance, cheers, Jernej

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[Dovecot] trouble setting up dovecot on Ubuntu server with mysql backend
by Richard Harding 12 Oct '06

12 Oct '06

I'm trying to setup dovecot to use my postfixadmin user accounts on an ubuntu server. dovecot versions: dovecot-common 1.0.beta3-3ubuntu5.3 dovecot-imapd 1.0.beta3-3ubuntu5.3 I have gotten the account up and I can see dovecot query for the password for the user, but I get login failed. In my mail.log I only see this: dovecot: imap-login: Aborted login: user=<user(a)domain.com>, method=PLAIN, rip=IP_ADDR, lip=IP_ADDR, TLS I can't see to find any other information that can help me figure out why it won't accept the password. The passwords in mysql are md5crypt passwords according to postfixadmin's conf file. // In what way do you want the passwords to be crypted? // md5crypt = internal postfix admin md5 // system = whatever you have set as your PHP system default // cleartext = clear text passwords (ouch!) $CONF['encrypt'] = 'md5crypt'; In my old setup I have auth_mechanisms just set to plain. Any help is greatly appreciated. I feel like I'm just missing one thing that get the passwords to be accepted. Thanks...Rick dovecot.conf protocols = imap imaps ssl_disable = no log_timestamp = "%Y-%m-%d %H:%M:%S " mail_extra_groups = mail mail_debug = yes default_mail_env = maildir:/home/vmail/%d/%n/ protocol imap { } protocol pop3 { } auth default { mechanisms = plain login digest-md5 passdb sql { args = /etc/dovecot/dovecot-sql.conf } userdb sql { args = /etc/dovecot/dovecot-sql.conf } socket listen { client { user = postfix group = postfix path = /var/spool/postfix/private/auth mode = 0660 } } mechanisms = digest-md5 plain user = root } plugin { } dovecot-sql.conf driver = mysql connect = host=127.0.0.1 user=postfix password=$PASS dbname=postfix password_query = SELECT password FROM mailbox WHERE username = '%u' user_query = SELECT maildir, 106 AS uid, 112 AS gid FROM mailbox WHERE username = '%u'

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[Dovecot] Filtering Mails - how?
by Daniel Seichter 12 Oct '06

12 Oct '06

Hello, I've got some problems about understanding, how to filter my incoming mails. I am using dovecot 1.0.beta3 (ubuntu server) and want to implement a filter, where I can filter all my incoming messages (like the ones from the dovecot ml) to special folders within the mailbox of each user (for each user a special set of filters). Is there a chance to do this in dovecot or have I to use another program? My system works like: Fetchmail fetches mails from two mailservers and deliver them to the users inbox Procmail send them to spamassassin for checking about spam Dovecot provides access to the mailbox with IMAP Hope there is an easy way like module for webmin or something else. Thank you Daniel

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[Dovecot] deliver + xfilter
by Neal Becker 12 Oct '06

12 Oct '06

I'm currently using maildrop to do delivery, because I like to use it's xfilter to pipe through spamc. I don't see a similar option for dovecot's deliver. Is there something? It would be nice to use deliver, since I use dovecot for reading mail.

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[Dovecot] 1.0rc8 status report
by David Lee 12 Oct '06

12 Oct '06

A quick status report on how 1.0rc8 behaved in service for a few hours with several hundred simultaneous users, at a site very new to dovecot. Oh, and a question at the end. Summary: Reasonable for a first shot but one significant problem, requiring backing off. Background: We have a long-established UW-IMAP service for a user population of about 20,000 based on a few Linux (Redhat) machines running IMAP/POP and inbound delivery. We try to ensure, but cannot guarantee, that all activity for a given user takes place within one machine. Each machine mounts the INBOX area ("/var/spool/mail"; traditional UNIX mbox) via NFS with tight NFS arguments ("noac,actimeo=0", etc.) and similarly mounts the users' folder areas which are subdirs of their home directories. (We know that Mark Crispin recommends against NFS for UW-IMAP, but we seem to have been OK.) There is also some processing: .forward->"| procmail"->folder-or-inbox Each machine typically has several hundred simultaneous IMAP connections. This has basically worked well, but the UW-IMAP loading has been heavy. The plan: In an ideal world, I would like to restructure the above. But our world is not ideal, so we have to stay with the structure. But we are looking for a transparent (user perspective) migration to dovecot. The dovecot experience: Yesterday, I quietly adjusted a DNS entry to redirect one of the live email hostnames at an additional machine in the "farm", running dovecot 1.0rc8, including deliver/LDA (and taking into account some post-rc7 dovecot changes in this area). On an earlier, smaller-scale test, one problem had been some periods of "temporary authentication failures". Increasing "login_processes_count" and "login_max_processes_count" (each by a factor of 8) seems to have fixed this, and I'm not aware of any problems in that area yesterday. It basically went well. But just over two hours hours later I had to back off, because of a significant dovecot problem, namely that dovecot crashed, almost silently. The only traces of this event in the log file seem to be: Oct 10 16:26:12 [...] dovecot: child 24525 (login) returned error 89 Oct 10 16:26:14 [...] dovecot: Login process died too early - shutting down Any thoughts? Any fixes? If the problem needs debugging (or additional data/log collection) how might that be attempted in this environment? -- : David Lee I.T. Service : : Senior Systems Programmer Computer Centre : : Durham University : : http://www.dur.ac.uk/t.d.lee/ South Road : : Durham DH1 3LE : : Phone: +44 191 334 2752 U.K. :

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[Dovecot] Issues with Dovecot/Pam/nss_ldap
by Ejay Hire 12 Oct '06

12 Oct '06

Hello all. I have experienced an unusual behaviour from dovecot which I believe to be related to some interaction between dovecot and nss_ldap/Pam. Centos/Postfix/mbox(es)/Openldap/dovecot. The box is using PAM with ldap, and is also running BIND, SAMBA, and DHCPD. Dovecot 1.0rc2 from source. I left dovecot at the default, to use PAM for authentication and guess the mailbox. This worked well, except during peak times, dovecot would "hang", waiting an exceptionally long time after connecting before doing authentication. The users would report this as "Send/receive stuck on 64%" or something like that. During this time, I would note a number of <defunct> dovecot processes in ps. Increasing the number of idle login proceses in the pool to ridiculously high values (30) did not affect the symptom. Restarting dovecot would immediately resolve the issue. I believe this to be related somehow to dovecot's PAM interaction, because I was able to work around it by setting dovecot to talk directly to LDAP. Googling found isolated reports of similar behaviour in the Fedora Core 3 bug list at Redhat. It's rare I can help in project as important as dovecot, so I'm willing to spend some time tracking this down. What information can I provide to help? Thanks Ejay Hire

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[Dovecot] Fwd: Received dates problem in Outlook after migration
by James Wyper 12 Oct '06

12 Oct '06

Having looked at this again, I think I have a hypothesis: 1. Outlook is ignoring the date/timestamps on the files in my Maildirs 2. The file names of my transferred files follow a similar pattern (they start with near-identical numbers) 3. Dovecot's file naming scheme for mails must relate somehow to the date that they were created / transferred / received 4. If I can therefore **rename** the files correctly to reflect their sending date then I can fix my problem Does this make sense? Can anyone point me in the direction of a spec that says how Dovecot names its files? Thanks, James. --- James Wyper wrote: > Date: Sun, 1 Oct 2006 21:47:02 +0100 (BST) > From: James Wyper > To: dovecot(a)dovecot.org > Subject: [Dovecot] Received dates problem in Outlook after migration > > Hello everyone, > > I've just started using 1.0-beta3 on Ubuntu Dapper, having migrated > from an mbox / UW-IMAP combination to a Maildir / Dovecot one. For > some reason the mb2md tool failed to recognise some of my mbox files > as > valid ones, so I migrated my email by running UW-IMAP, copying my > folders to local storage in Evolution, then running Dovecot instead > and > copying the folders back. > > All seems OK, except that in Outlook 98 all the emails now have the > date/time of their migration, not when they were received. This > isn't > a problem in Thunderbird or Evolution - but my wife uses Outlook and > doesn't wish to switch. > > I've tried using touch to change the timestamps of the mails in my > inbox (in ~/Maildir/cur) but this hasn't had any effect. I've also > tried deleting ~/Maildir/dovecot.index and > ~/Maildir/dovecot.index.cache but this hasn't made any difference > either. > > Something else in dovecot must be being sent to Outlook as the date / > time on these emails. Can anyone suggest what it would be and how I > might go about changing it (to, for example, the Received: date on > the > email header?). > > Thanks in advance, > James. > > > > ___________________________________________________________ > Try the all-new Yahoo! Mail. "The New Version is radically easier to > use" The Wall Street Journal > http://uk.docs.yahoo.com/nowyoucan.html > Send instant messages to your online friends http://uk.messenger.yahoo.com

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[Dovecot] proxy mode and ldap
by Francis 12 Oct '06

12 Oct '06

Hello, I need to use dovecot as proxy pop and imap with ldap. in the documentation, there is an example to do this with mysql. how to do to return (as mysql do) nodelay=y nologin=y proxy=y an idea to do this with ldap ? Thanks in advance. Francis

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Re: [Dovecot] 1.0rc8 status report
by Bill Boebel 12 Oct '06

12 Oct '06

On Wed, October 11, 2006 11:26 am, Timo Sirainen <tss(a)iki.fi> said: > On Wed, 2006-10-11 at 15:54 +0100, David Lee wrote: >> It basically went well. But just over two hours hours later I had to back >> off, because of a significant dovecot problem, namely that dovecot >> crashed, almost silently. The only traces of this event in the log file >> seem to be: >> Oct 10 16:26:12 [...] dovecot: child 24525 (login) returned error 89 >> Oct 10 16:26:14 [...] dovecot: Login process died too early - shutting down > > Looks like this is happening to some people now.. Unfortunately I can't > really do anything with this little information. > I was seeing this too, with the CVS version just before RC8. I believe that when login_max_processes_count is reached (the default is 128) Dovecot is crashing rather than handling that condition semi gracefully. The reason I think this is because we have a cluster of servers that do search indexing for our IMAP mailboxes, and due to a bug this week, those servers started slamming one of our IMAP servers with rapid login failures. Dovecot crashed frequently with "Login process died too early - shutting down" while this was occurring. And then also under normal operation we were seeing Dovecot crash about once per day on random servers when that server was under a heavy IMAP load. To work around this we switched to "login_process_per_connection = no" and bumped up our file descritor limit ("ulimit -n"). No crashes since. But probably still needs to be fixed in the code. Bill

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[Dovecot] Strange Mysql connect problem
by Craig Jackson 11 Oct '06

11 Oct '06

Hi, I compiled Dovecot and Mysql on two different servers each with the same options. Dovecot connects successfully on Server B. Server A has this error in Dovecot trying to connect to Mysql: dovecot: auth-worker(default): mysql: Connect failed to /tmp/mysql.sock (exim_db): Access denied for user 'user'@'localhost' (using password: YES) - waiting for 5 seconds before Passwords are plain text. Server A (64 bit amd with Ubuntu Hoary) info: ./mysql -V mysql Ver 14.7 Distrib 4.1.11, for unknown-linux-gnu (x86_64) ldd dovecot libmysqlclient.so.14 => /usr/local/mysql/lib/mysql/libmysqlclient.so.14 (0x0000002a9566c000) libc.so.6 => /lib/libc.so.6 (0x0000002a95881000) libcrypt.so.1 => /lib/libcrypt.so.1 (0x0000002a95ac0000) libnsl.so.1 => /lib/libnsl.so.1 (0x0000002a95bf3000) libm.so.6 => /lib/libm.so.6 (0x0000002a95d09000) libz.so.0 => /usr/local/mysql/lib/mysql/libz.so.0 (0x0000002a95e90000) /lib64/ld-linux-x86-64.so.2 => /lib64/ld-linux-x86-64.so.2 (0x0000002a95556000) libpthread.so.0 => /lib/libpthread.so.0 (0x0000002a95fa4000) ./dovecot --version 1.0.rc7 More info -- The Mysql user name on A and B are the same and are correct. Other applications are connecting on A using the same credentials. Server B info (Debian PIII): mysql Ver 14.7 Distrib 4.1.21, for pc-linux-gnu (i686) using EditLine wrapper ldd dovecot linux-gate.so.1 => (0xffffe000) libc.so.6 => /lib/tls/libc.so.6 (0x40020000) /lib/ld-linux.so.2 (0x40000000) ./dovecot --version 1.0.rc7 I have Googled and see lots of people having the same problem. I would rather not downgrade Mysql. Why doesn't Dovecot connect on A? Thanks. Craig

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[Dovecot] POP +OK CR LF Question
by Phil Udel 11 Oct '06

11 Oct '06

HI. I just finished installing a new mail server running CentOS Ver 4. and I am running sendmail with devecot 0.99.11. Everything is working fine except for a customer of mine is using a tool that does pop requests. And his tool is failing waiting on a CR LF in the +OK. I did a small hex dump of my old pop and the dovecot pop and he is right. Docevot POP does not end its +OK with a CR LF. I looked around but I don't see where I can make that change. Can anyone please help. Thanks

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Re: [Dovecot] POP3 - Mark messages as read
by Jose Gervasio Gomiz 11 Oct '06

11 Oct '06

>>----- Original Message ----- >>From: "Timo Sirainen" <tss(a)iki.fi> >>To: "Jose Gervasio Gomiz" <goma(a)bblanca.com.ar> >>Cc: <dovecot(a)dovecot.org> >>Sent: Tuesday, October 10, 2006 2:05 PM >>Subject: Re: [Dovecot] POP3 - Mark messages as read >>On Tue, 2006-10-10 at 12:28 -0300, Jose Gervasio Gomiz wrote: >> Hi all. I have a little problem with Dovecot. >> My POP3 users can retrieve their emails without problem, but if they have >> "Leave mail in server" (or similar) active in their clients, their mboxes >> doesn't get updated marking those messages as read. >>.. >> Should I upgrade to dovecot-1.x to solve this? >Yes. I've upgraded to dovecot-1.0-0_24.rc8, problem solved. Thanks for you help! Jose

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[Dovecot] Problems with LDA and vitual mailboxes
by Daniel Frickemeier 11 Oct '06

11 Oct '06

Hello, I try to set up dovecot LDA with virtual domains/mailboxes to use sieve. I use dovecot 1.0_rc7 with sieve dovecot-sieve-20060726 . All datas about the virtual domains and mailboxes are stored in a mysql-database. And without using the LDA delifer agent, everything works fine. But when I try to use LDA (even without sieve), I got a delivery failture. I followed the wiki-howto http://wiki.dovecot.org/LDA to set up LDA support and added /etc/postfix/maser.cf: # Dovecot LDA dovecot unix - n n - - pipe flags=DRhu user=vmail:vmail argv=/usr/local/libexec/dovecot/deliver -d ${recipient} /etc/postfix/main.cf: dovecot_destination_recipient_limit = 1 virtual_transport = dovecot for postfix. In dovecot.conf I added: auth default { # Space separated list of wanted authentication mechanisms: # plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi mechanisms = plain login # SQL database passdb sql { # Path for SQL configuration file, see doc/dovecot-sql.conf for example args = /etc/dovecot/dovecot-sql.conf } # SQL database userdb sql { # Path for SQL configuration file, see doc/dovecot-sql.conf for example args = /etc/dovecot/dovecot-sql.conf } socket listen { master { path = /var/run/dovecot-auth-master # use this for LDA, the dovecot-auth will NOT work mode = 0600 user = virtual #group = mail # Or alternatively mode 0660 + LDA user in this group } client { path = /var/run/dovecot-auth # use this for postfix mode = 0600 user = posfix # postfix user #group = mail # Or alternatively mode 0660 + postfix user in this group } } } protocol lda { log_path = /var/tmp/dovecot-lda.log { And in dovecot-sql # Dataabase driver: mysql, pgsql driver = mysql # Currently supported schemes include PLAIN, PLAIN-MD5, DIGEST-MD5, and CRYPT. default_pass_scheme = CRYPT #default_pass_scheme = PLAIN-MD5 # Database options connect = host=localhost dbname=$DB user=$USER password=$PASSWD password_query = SELECT password FROM mailbox WHERE username = '%u' AND active = '1' user_query = SELECT maildir, 1002 AS uid, 1004 AS gid FROM mailbox WHERE username = '%u' AND active = '1' # eof But when I send a mail to a vitual user, I got the following log entries in mail.log: Oct 11 08:40:38 server postfix/pipe[11673]: D39A5664420: to=<zigulle(a)zigulle.de>, relay=dovecot, delay=0.08, delays=0.06/0/0/0.03, dsn=4.3.0, status=deferred (temporary failure) and in /var/tmp/dovecot-lda.log: deliver(zigulle(a)zigulle.de): Error: userdb(zigulle(a)zigulle.de) didn't return a home directory has anyone here a hint, where the Problem ist? cu Daniel -- TELEKOM-Mitarbeiter, die keine TELEKOM-Aktien kaufen, sollten wegen Verwendung von Insider-Wissen bestraft werden. (Azkin Kaden)

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[Dovecot] RC8 - Creating maildir
by Luigi Rosa 11 Oct '06

11 Oct '06

I just setup a new mail server with maildir and Dovecot RC 8 I noticed that when I login via POP3 with a username that do not have a maildir yet Dovecot logs this line: Oct 11 11:46:52 gw dovecot: stat(/var/spool/mail/xxxx/) failed: No such file or directory After that Dovecot correctly creates the maildir structure Wouldn't it be better to log a message like "Creating maildir structure for user xxxxxx"? Ciao, luigi -- / +--[Luigi Rosa]-- \ I didn't know it was impossible when I did it.

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Re: [Dovecot] Strange Mysql connect problem
by Craig Jackson 11 Oct '06

11 Oct '06

> -----Original Message----- > From: "M. Tolga Özses" [mailto:mtozses@sabanciuniv.edu] > Sent: Wednesday, October 11, 2006 12:52 AM > To: Craig Jackson > Subject: Re: [Dovecot] Strange Mysql connect problem > > > Hi, > > Is MySQL even running? > > Yes. Other applications are using it. It is a production mail server.

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[Dovecot] sieve deliver and sun cc compilers
by lenny＠edpausa.com 10 Oct '06

10 Oct '06

sieve deliver still doesn't build with Sun cc. any suggestions ? thank you. cc -DHAVE_CONFIG_H -I. -I. -I../.. -I/export/home/sho/src/dovecot/rc8/dovecot-1.0.rc8 -I/export/home/sho/src/dovecot/rc8/dovecot-1.0.rc8/src/lib -I../../src -I/opt/SUNWconn/crypto/include -xjobs=4 -c comparator.c -KPIC -DPIC -o .libs/comparator.o "comparator.c", line 149: syntax error before or at: __attribute__ "comparator.c", line 149: warning: undefined or missing type for: __attribute__ "comparator.c", line 212: warning: statement not reached "comparator.c", line 213: cannot recover from previous errors cc: acomp failed for comparator.c *** Error code 1 make: Fatal error: Command failed for target `comparator.lo' Current working directory /mnt/sho/src/dovecot/rc8/dovecot-sieve/src/libsieve *** Error code 1 make: Fatal error: Command failed for target `all-recursive' Current working directory /mnt/sho/src/dovecot/rc8/dovecot-sieve/src *** Error code 1 make: Fatal error: Command failed for target `all-recursive' Current working directory /mnt/sho/src/dovecot/rc8/dovecot-sieve *** Error code 1 make: Fatal error: Command failed for target `all'

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[Dovecot] Executing SQL update upon login
by Tom Sommer 10 Oct '06

10 Oct '06

Hi, I'm using SQL authentication in dovecot, and was wondering if anyone had any ideas as to how I could run an UPDATE statement upon each login, to set time of last login (and other interesting stuff) in the database table. -- Tom

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[Dovecot] How Dovecot handles email changed by file operations
by Craig Jackson 10 Oct '06

10 Oct '06

Hi, We have been using Courier-imap for a few years. I am always in the process of reviewing competing software, and hence my interest in Dovecot. Question: If email files are moved between IMAP folders (on the same IMAP server or a different one) or deleted using shell scripts, how does this impact Dovecot's indexes or its method of keeping track of the email? How likely is index or file corruption or race condition? An example, is the centralized removal of mail in all users' Junk folder older than 30 days. We use Maildir format and Dovecot 1.0-RC7 with Mysql. We have about 150 users. Thanks. Craig

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Re: [Dovecot] Out of memory errors
by Bill Boebel 10 Oct '06

10 Oct '06

On Tue, October 10, 2006 1:44 am, Timo Sirainen <tss(a)iki.fi> said: > On Mon, 2006-10-09 at 21:32 -0400, Bill Boebel wrote: >> Do these errors indicate a memory leak? I see them in the logs a few times per >> day on each of our servers, running CVS dovecot-20060924... >> >> Oct 8 22:21:30 mail38b dovecot: auth(default): block_alloc(): Out of memory >> Oct 8 22:21:30 mail38b dovecot: child 6391 (auth) returned error 83 (Out of >> memory) >> Oct 9 20:05:05 mail38b dovecot: auth(default): pool_system_realloc(): Out of >> memory >> Oct 9 20:05:05 mail38b dovecot: child 655 (auth) returned error 83 (Out of >> memory) > > Could be. What passdb and userdb are you using? Are you using anything > else than plaintext auth? > We are using ldap and passwd: passdb ldap { args = /etc/dovecot-ldap.conf } userdb ldap { args = /etc/dovecot-ldap.conf } passdb passwd-file { args = /etc/dovecot-master.passwd master = yes } And we are only using plain-text auth. Bill

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Re: [Dovecot] SSL errors
by Bill Boebel 10 Oct '06

10 Oct '06

On Sun, October 8, 2006 4:40 pm, Timo Sirainen <tss(a)iki.fi> said: > On Fri, 2006-09-29 at 14:10 -0400, Bill Boebel wrote: >> On Fri, September 29, 2006 11:46 am, Dominic Marks <dom(a)helenmarks.co.uk> said: >> >> Actually, I found in the archives that I should increase login_process_size if >> I'm not running with login_process_per_connection. I have done this and that >> seems to have taken care of the malloc failure. >> >> All of my customers who had IMAP SSL problems are reporting that the problem >> is fixed now that I have increased login_process_size to 64 MB. In just two >> hours though the imap-login process is up to 33 MB, and continuing to grow. Is >> that normal? This particular server handles 1200 IMAP connections and 800 IMAPS >> connections concurrently on average. >> > > I don't know how much memory each SSL connection takes, but I'd suggest > increasing the memory limit even higher, maybe even 256MB. If it > continues to grow up to it then I guess there's a memory leak somewhere. > After watching it for the past ten days, the imap-login processes on our five Dovecot proxy servers are hovering at between 32MB and 36MB each. So it doesn't look like a memory leak here. The proxies are running great. Thanks, Bill

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Re: [Dovecot] RC8 failing...
by Chris Wakelin 10 Oct '06

10 Oct '06

Timothy Meader wrote: > I just tried upgrading from RC7 to RC8 this morning, and I'm seeing an > issue I've never seen before. On my first POP3 login, all is fine, but > any subsequent logins seem to fail with the message: > > dovecot: Oct 10 11:04:31 Error: Maximum number of mail processes exceeded > > In the dovecot log file. > > I'm also oddly seeing the message: > > Oct 10 11:01:05 popbkup pop3-login: [ID 799321 mail.crit] Dovecot > version mismatch: Master is v1.0.rc7, login is v1.0.rc8 (if you don't > care, set version_ignore=yes) > > in the messages file on my system. Don't really understand that one, and > I've done a complete shutdown of all dovecot or *-login *-auth processes > prior to the "make install" for RC8. > Sounds like you've still got a rc7 version of sbin/dovecot somehow. Try running "dovecot --version" to check. As for the other (if it's unrelated) what do you have for "max_mail_processes"? Best Wishes, Chris -- --+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+- Christopher Wakelin, c.d.wakelin(a)reading.ac.uk IT Services Centre, The University of Reading, Tel: +44 (0)118 378 8439 Whiteknights, Reading, RG6 2AF, UK Fax: +44 (0)118 975 3094

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[Dovecot] POP3 - Mark messages as read
by Jose Gervasio Gomiz 10 Oct '06

10 Oct '06

Hi all. I have a little problem with Dovecot. My POP3 users can retrieve their emails without problem, but if they have "Leave mail in server" (or similar) active in their clients, their mboxes doesn't get updated marking those messages as read. If I access their mboxes locally with "mail -f username" I can see every message marked as non-read, something that never happened before when I used qpopper. I should note that when they retrieve their emails afterwards those previously received doesn't arrive again (correct behavior). My setup is: RHEL 4 Update 4 dovecot-0.99.11-4.EL4 (last version in RH Updates) mbox format, external POP3, local only IMAP (Squirrelmail) I couldn't find references to this in /etc/dovecot.conf, the FAQ or via web searching. Should I upgrade to dovecot-1.x to solve this? Even if RH doesn't support it yet? Any info would be greatly appreciated. Jose Gomiz

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[Dovecot] RC8 failing...
by Timothy Meader 10 Oct '06

10 Oct '06

I just tried upgrading from RC7 to RC8 this morning, and I'm seeing an issue I've never seen before. On my first POP3 login, all is fine, but any subsequent logins seem to fail with the message: dovecot: Oct 10 11:04:31 Error: Maximum number of mail processes exceeded In the dovecot log file. I'm also oddly seeing the message: Oct 10 11:01:05 popbkup pop3-login: [ID 799321 mail.crit] Dovecot version mismatch: Master is v1.0.rc7, login is v1.0.rc8 (if you don't care, set version_ignore=yes) in the messages file on my system. Don't really understand that one, and I've done a complete shutdown of all dovecot or *-login *-auth processes prior to the "make install" for RC8. The only possible config file change I can think of that might've caused this (that was mentioned in the release notes for RC8) is the default_mail_env value, however, I believe mine is fine: mbox:~/mail:INBOX=/var/mail/%1u/%1.1u/%u This is for an actual mailbox with a two character hash for the maildrop directory. I was looking forward to giving RC8 a spin, but I've had to revert back to RC7 for now. Thanks in advance. --- Tim Meader CNE ISG Security NetCommerce Corporation Tim.Meader(a)gsfc.nasa.gov (301) 286-8013

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[Dovecot] Trying to use "deliver" as a LDA
by Stéphane Legrand 10 Oct '06

10 Oct '06

Hello, I'm trying to use "deliver" as a LDA for some users. I found the page http://wiki.dovecot.org/LDA where i read that i can use the ".forward" file in the user HOME directory. However, when i try, i get the following error in the maillog file : ... deliver(...): mbox: We need root IMAP folder, but can't find it or HOME environment ...deliver(...): Failed to create storage for 'user' with mail 'mbox:/var/mail/user' where "user" is the user login. How can i fix this error ? My aim by using "deliver" as a LDA is to force a quota for the mailbox user. Is this the right thing to do to achieve this ? My configuration is the following : OS : FreeBSD 6.1 Dovecot 1.0.r7 Thank you for your help. Regards, Stephane. -- Stéphane LEGRAND Pôle Système d'Information - Développement informatique CCI du Loiret - 23 place du Martroi - 45044 ORLEANS CEDEX 1 Tél : 02 38 77 77 55 - Mél : stephane.legrand(a)loiret.cci.fr - Fax : 02 38 42 15 61

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[Dovecot] Out of memory errors
by Bill Boebel 10 Oct '06

10 Oct '06

Do these errors indicate a memory leak? I see them in the logs a few times per day on each of our servers, running CVS dovecot-20060924... Oct 8 22:21:30 mail38b dovecot: auth(default): block_alloc(): Out of memory Oct 8 22:21:30 mail38b dovecot: child 6391 (auth) returned error 83 (Out of memory) Oct 9 20:05:05 mail38b dovecot: auth(default): pool_system_realloc(): Out of memory Oct 9 20:05:05 mail38b dovecot: child 655 (auth) returned error 83 (Out of memory) Bill

2 1

[Dovecot] (mail_cache_add): assertion
by Daniel Voelkel 09 Oct '06

09 Oct '06

Hi, I currently use rc2 on FreeBSD AMD64. Are there any news regarding this Bug: mail-cache-transaction.c: line 709 (mail_cache_add): assertion failed: (fixed_size == (unsigned int)-1 || fixed_size == data_size)? I read that access to an 64bit-machine could help you. Feel free to contact me. Greetings from germany, Daniel -- GMX DSL-Flatrate 0,- Euro* - Überall, wo DSL verfügbar ist! NEU: Jetzt bis zu 16.000 kBit/s! http://www.gmx.net/de/go/dsl

4 4

[Dovecot] IGNORE: RFC compliance report
by Tony Kay 09 Oct '06

09 Oct '06

I mis-read the line. -- Anthony Kay University Computing Center (541) 346-1719 GPG Fingerprint: B0DB D46A 60AF FAE7 A94A 5075 0CB4 4D88 9F4F 7F09 This isn't right. This isn't even wrong. Wolfgang Pauli

1 0

[Dovecot] RFC compliance on folder lists
by Tony Kay 09 Oct '06

09 Oct '06

If a mail folder contains quotes, the IMAP server may respond with a line like: 1 list "" "a/b/"X" Y Z" The specific example I saw had this exact form (it was in a nested folder, and one of the words was quoted). -- Anthony Kay University Computing Center (541) 346-1719 GPG Fingerprint: B0DB D46A 60AF FAE7 A94A 5075 0CB4 4D88 9F4F 7F09 Physics is like sex: sure, it may give some practical results, but that's not why we do it. - Richard Feynman

2 1

[Dovecot] fix: LDA logging
by David Lee 09 Oct '06

09 Oct '06

Timo: As discussed over the last couple of days. Please could the attached patch be applied to "deliver.c" so that it can log (syslog etc.) final delivery into the destination mailbox. This completes a hitherto missing part in logging an email's progress; it is useful (for example) to diagnose "my email wasn't delivered" problems. Thanks. -- : David Lee I.T. Service : : Senior Systems Programmer Computer Centre : : Durham University : : http://www.dur.ac.uk/t.d.lee/ South Road : : Durham DH1 3LE : : Phone: +44 191 334 2752 U.K. :

2 2

[Dovecot] dovecot, procmail and deliver
by David Lee 09 Oct '06

09 Oct '06

(Using dovecot 1.0 RC7 on Fedora Core 5) <scene set> Hitherto we have used UW-IMAP on a "farm" of Linux machines mounting NFS from a NetApp. (The UW-IMAP author doesn't like use of NFS, but with careful use of NFS mount arguments ('noac,actimeo=0' etc.) and trying to ensure that all activity for a given user takes place within one machine in the farm, we seem to have been OK.) We have also used UW-IMAP's 'tmail' (in sendmail.cf) and 'dmail' (from any user procmail recipes), so that access to the INBOX has been consistently UW-IMAP software. We are now considering doing a transparent migration to dovecot to improve performance. </scene> --- First: a general question: To complement the UW->dovecot migration of the IMAP daemon (reading the INBOX and folders), ought I to do a similar delivery-side migration from [UW] tmail/dmail to [dovecot] 'deliver'? It would feel safer this way, but maybe I worry too much... --- Second: "deliver" seems to add an unconditional "From " line at the start of each delivery. From sendmail, using the 'n' flag, "Mlocal F=...n..." that is OK. (Although I'm not convinced that "dovecot.deliver", nor its two-space separator (emphasis on "two") from the following date are ideal. Nor, come to that line's lack of "@somewhere".) But from a procmail recipe, I end up with two "From " lines. Surely this is incorrect. How can this be reduced to one? Shouldn't "deliver" ensure that there is only "From " line? --- Third: Would it be possible for "deliver" to do a "syslog" entry to confirm final delivery into the destination mailbox, please? (I could try and produce a patch, but someone else with more dovecot familiarity could probably do the job must more quickly and probably also more cleanly!) (I think that's all for the moment.) -- : David Lee I.T. Service : : Senior Systems Programmer Computer Centre : : Durham University : : http://www.dur.ac.uk/t.d.lee/ South Road : : Durham DH1 3LE : : Phone: +44 191 334 2752 U.K. :

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[Dovecot] patch: mailboxcasecmp()
by Frank Cusack 09 Oct '06

09 Oct '06

Here is a patch which adds mailboxcmp() and mailboxcasecmp() functions, similar to mailbox_equals(). Names were chosen to match strcmp() and strcasecmp(). I needed this for Johaness Berg's dspam plugin. It watches a folder "SPAM" and forcing this to be uppercase is unacceptable for me. (I also had to modify the plugin to use the new routine.) It's against dovecot-1.0.beta8 but should be trivial to port to CVS. -frank

3 10

[Dovecot] How to store Dovecot Logs in SQL DB
by Krzysztof 09 Oct '06

09 Oct '06

Hello! I would like to put user login attempts into SQL DB (PostgreSQL). Any idea how to do it (without manual parsing log files)? Kind regards, Krzysztof Kiszewski

8 10

[Dovecot] Converting UW MBX mail folder
by Anne Hammond 09 Oct '06

09 Oct '06

We converted from uw-imapd to dovecot but are still having problems with MBX mail folders. The user can't access this "MBX mail folder": [root@volt Resume's]# file "Sys Admin" Sys Admin: MBX mail folder [root@volt Resume's]# mailutil copy ./"Sys Admin" '#driver.unix/new' Can't open mailbox ./Sys Admin: no such mailbox [root@volt Resume's]# mailutil copy -debug -verbose./SysAdminSave '#driver.unix/new' Can't open mailbox ./SysAdminSave: no such mailbox Could you tell me what I am doing wrong? Anne M. Hammond - Systems / Network Administration - Tech-X Corp

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Re: [Dovecot] Dovecot LDA
by Steven F Siirila 09 Oct '06

09 Oct '06

On Sun, Oct 08, 2006 at 10:25:53PM +0300, Timo Sirainen wrote: > On Fri, 2006-10-06 at 21:00 -0500, Steven F Siirila wrote: > > I am running Dovecot 1.0-rc6 along with dovecot-sieve from 2006-10-05 CVS. > > I am calling dovecot deliver from Postfix (main.cf): > > > > mailbox_command = /opt/dovecot/libexec/dovecot/deliver > > > > Upon switching to dovecot deliver, I observed two problems: > > > > 1) An extraneous "From " header now appears at the top of each message > > delivered, e.g.: > > > > From dovecot.deliver Fri Oct 06 19:59:57 2006 > > From sfs(a)tc.umn.edu Fri Oct 6 19:59:57 2006 > > Return-Path: <sfs(a)tc.umn.edu> > > > > Using Postfix delivery the first of these lines does not appear. > > This, of course, confuses MUAs. > > Don't give F flag to Postfix's pipe command. The messages in question are accepted by the Postfix smtpd process and processed by Postfix, and handed off to dovecot deliver. I am not specifying an F flag anywhere. If I remove the "mailbox_command" I specified above, Postfix delivers the mail with only the one "From " header -- with the mailbox_command above (no options specified), I get two "From " headers. > Although this reminds me that the "dovecot.deliver" is wrong in there.. > Hmm. I think I'll add a maildrop-compatible -f <envelope> parameter > here. How will this help me? I don't even want the added "From " header. If Postfix is not supposed to be writing one, then how do I tell it not to and how does Postfix tell dovecot deliver what to put in the "From " header it writes? (It must be the proper return address seen in the original SMTP transaction as the MAIL FROM value) > There, done in CVS. I'll also make 1.0rc8 release today. > > > 2) The "Content-Length:" header appears after a blank line, essentially > > putting it into the RFC822 body, e.g.: > > > > User-Agent: Mutt/1.4.2.1i > > X-UID: 11510 > > Status: > > X-Keywords: > > > > Content-Length: 200 > > > > test > > Are you sure it's a blank line? Dovecot adds lots of spaces after > X-Keywords which could just make it look like that. You're correct; the line prior to the "Content-Length:" header was indeed an "X-Keywords:" header padded out to exactly 80 characters, making it appear that there was an extra blank line after it (my xterm window is set to 80 columns). -- 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

1 0

[Dovecot] which e-mail client can work with recent dovecot?
by Sergey Ivanov 09 Oct '06

09 Oct '06

Hi, I'm trying to use dovecot-1.0.rc7. Before I've used dovecot-1.0 from nightly cvs build of August 08, 2006. It worked perfectly, on Linux 64-bit, you can see spec and patches at http://www.sisyphus.ru/srpm/dovecot/ When I tried to upgrade to rc7 and to recent nightly cvs builds with the same configuration and patches (provided necessary adaptations), it builds O.K, but can not move messages from folder to folder. I've tried the following mail clients: thunderbird-1.5.0.7, evolution-2.0.2, sylpheed-claws-2.0 and KMail-1.7.1 (all from Centos-4.4). KMail refuses to copy (or to move) multiple selected messages, saying:" Error while copying messages.Connection to Server Closed Unexpectedly ...". Evolution is not able to open folders at 3-rd level (like dovecot/2006/09), or it is so slow that I was not able to test moving/copying messages in it. Sylpheed-claws died whan I tried this message copying. Thunderbird tries to move infinetly in a loop, filling the dovecot's log with lines: --- Sep 28 12:56:25 alt64 dovecot: imap-login: Login: user=<seriv>, method=plain, rip=66.80.117.2, lip=192.168.10.8, TLS Sep 28 12:56:25 alt64 dovecot: IMAP(seriv): file mail-cache-transaction.c: line 709 (mail_cache_add): assertion failed: (fixed_size == (unsigned int)-1 || fixed_size == data_size) Sep 28 12:56:25 alt64 dovecot: child 25177 (imap) killed with signal 6 Sep 28 12:56:25 alt64 dovecot: imap-login: Login: user=<seriv>, method=plain, rip=66.80.117.2, lip=192.168.10.8, TLS Sep 28 12:56:25 alt64 dovecot: IMAP(seriv): file mail-cache-transaction.c: line 709 (mail_cache_add): assertion failed: (fixed_size == (unsigned int)-1 || fixed_size == data_size) Sep 28 12:56:25 alt64 dovecot: child 25183 (imap) killed with signal 6 --- (approximitely 2 cicles per second). And when I reinstalled back the previously worked version of dovecot, the problem remains. -- With best regards, Sergey Ivanov.

3 3

[Dovecot] 1.0rc8 - not quite yet
by Timo Sirainen 08 Oct '06

08 Oct '06

OK, I know I promised rc8 today in my recent mails, but it's way too late and writing changes to NEWS file takes time. :) So I guess it'll happen tomorrow then. In the mean time it would be nice if you'd test that I didn't break anything badly with my recent changes. Especially when I changed the password verifications to detect if the password is in hex or base64 encoding based on the string length. This also allowed me to make LDAP-MD5 and PLAIN-MD5 use the same password verification function. I like this change. :) So, the almost-rc8 snapshot is in: http://dovecot.org/nightly/dovecot-latest.tar.gz I also started building dovecot-sieve snapshots: http://dovecot.org/nightly/sieve/

1 0

[Dovecot] Maildir++ quota inconsistency
by Anand Buddhdev 08 Oct '06

08 Oct '06

I've found what I think is an inconsistency in the Maildir quota implementation. According to the Maildir++ quota specification at: http://www.inter7.com/courierimap/README.maildirquota.html Maildir++ quota can be specified as maximum size, or maximum number of messages, or even both. The size specification is supposed to be in bytes. So I could use '10000000S' to set a quota of around 10MB. Now, the Exim MTA has an independent Maildir++ quota implementation, and it follows the specification, so if I set the quota in Exim to 10000000, it will work perfectly with sqwebmail and courier-imap. However, it doesn't play well with Dovecot, because Dovecot chooses to interpret the quota as kilobytes, rather than bytes. An example: If I set the quota to 10240 in Dovecot, it creates a maildirsize file with the value 10240000 in it. If I then set the quota to 10M in Exim, Exim calculates that as 10485760. It detects that the value in the maildirsize file is wrong, and recreates the file with a quota of 10485760 bytes. Exim's behaviour is consistent with the courier family of packages, as well as the specification, so I'm venturing to say that Dovecot's implementation is slightly non-standard, and should be fixed so that the quota setting is interpreted as bytes, and not as kilobytes, to avoid a situation like the above. -- Anand

4 4

[Dovecot] Password mismatch - SHA1 authentication problem.
by guard 08 Oct '06

08 Oct '06

Hello, I have problem with authentication. I'm using SHA1 passwords stored in MySQL. >From debug: Info: auth-worker(default): sql(test@mail, IP): query: SELECT password FROM vmail WHERE mail = 'test@mail' Info: auth-worker(default): sql(test@mail ,IP): Password mismatch Info: auth-worker(default): sql(test@mail ,IP): SHA1(dupadupa) != '2bca9dbe8a14811c687bb8c51c0e1cd14db8a018' I tried convert password to upper case, but it didn't help. Then I tried authentication in plain text and everything works fine... So, does dovecot crypt SHA1 using other method? I also use same SHA1 passwords to authenticate users in exim and it doesn't have any problem with that. I'm using mysql 5.0.24 and dovecot 1.0 rc7. Best regards, Tomasz Krynicki

2 1

[Dovecot] Dovecot behaviour when the server's file system fails (possible feature request)
by Timo Neuvonen 08 Oct '06

08 Oct '06

I've met a couple of times a situation, that there is something wrong with the mail server's operating system / file system, but Dovecot is still working, although it cannot any more access the mailbox files. The result is, that the imap mail client in the workstation automatically synchronises with the improperly empty-looking mailbox, effectively deleting everything previously loaded into the workstation's mail client (eg. Outlook Express) when using imap protocol. This is very annoying, especially when the workstation isn't connected with a high-speed-enough connection, since after the server is properly brought up again, reloading all the contents of the improperly emptied mail client may take considerable amount of time. This is especially the case, if the workstation has kind of mobile connection (eg. gprs) with very limited bandwith -in that case the sychronizing of eg. 20MB account may take at least from half an hour to more than one hour, and in some cases (eg. gprs roaming) also cost considerable amount of money (gprs data transfer may cost from eg. 5 to over 10 euros or dollars per megabyte, when roaming outside the phone operator's own network). So, is there currently a way to configure Dovecot in a way it would recognize that the mailbox actually is not accessible, and in that case it would return an error message to the mail client instead of returning "empty mailbox"? Of course, a smart enough mail client might also ask something from the user, but that seems not be the case either... If this behavious cannot be changed with the current configuration options, then a kind feature request to the developer: Would it be possible to change the behaviour of Dovecot when it actually can not access the mailbox files? Although the actual problem in this case is outside Dovecot, this kind of improvement would greatly improve the error tolerance of the whole system. -- TiN

2 1

[Dovecot] fd leak in 1.0rc7?
by Quentin Garnier 08 Oct '06

08 Oct '06

Hi, I just upgraded a 0.99 installation to 1.0rc7 (going from mbox to maildir along the way, but that's another story), and I'm seeing a rather fast fd quick; I already had to restart dovecot once, after a few hours. What is leaked are pipes, left open on the master dovecot process while the other end is long gone. I can't tell right now if it happens for every single login process spawned (either pop3 or imap), but at least a lot of them. FWIW, I'm running dovecot 1.0rc7 on NetBSD 2.0.3_STABLE. I'll try debugging tomorrow, but if anyone has an idea what happens in the meantime, I'm all hears. -- Quentin Garnier - cube(a)cubidou.net - cube(a)NetBSD.org "When I find the controls, I'll go where I like, I'll know where I want to be, but maybe for now I'll stay right here on a silent sea." KT Tunstall, Silent Sea, Eye to the Telescope, 2004.

2 3

[Dovecot] Pop3s duplicates
by Mark Adams 08 Oct '06

08 Oct '06

Hi, dovecot 1.0 rc6 Can someone please advise on my interpretation of the following logs, Users are reporting duplicate email coming through to their inbox. (user@domain replaced actual username and domain) There are also reports of the connection seemingly freezing whilst the emails are being downloaded (pausing at a certain amount of kB then continuing after a minute or 2). info: pop3-login: Login: user=<user@domain>, method=PLAIN, rip=89.192.*.**, lip=172.16.22.10, TLS info: POP3(user@domain): Disconnected top=0/0, retr=4/183443, del=0/313, size=83779942 info: pop3-login: Login: user=<user@domain>, method=PLAIN, rip=89.192.*.**, lip=172.16.22.10, TLS info: POP3(user@domain): Disconnected top=0/0, retr=3/183443, del=0/322, size=84201570 In the first instance the user downloaded 4 emails totalling 183443 bytes leaving 313 messages on the server. (outlook 2003 set to leave a copy of messages on the server) second instance user downloaded 3 emails, exactly the same amount of bytes and left 322 messages on the server. Does this mean the users connection was interrupted when downloading the original emails and they attempted to be sent again a second time? how could it be that there are 9 emails left on the server if only 3 extra were downloaded? Any help on this would be much appreciated. Thanks, Mark

3 5

[Dovecot] coding techniques
by David Lee 08 Oct '06

08 Oct '06

Whilst debugging a problem in dovecot LDA over the last few days, I came across two different issues in coding techniques. (Note: Please don't take this negatively; my intent is both positive and constructive!) The front page of the website www.dovecot.org says: "it uses several coding techniques to avoid most of the common pitfalls" So I hope it is OK to follow the spirit of that with some suggestions. The two issues I encountered both seem to be fairly easy holes to fall into, and yet equally easy to avoid in the first place by using established C practices. Firstly, many 'if' statements having a single statement (whether in then or else part) are currently written in a short-cut fashion: if (condition) statement 1; else statement 2; This, though technically legal, is potentially lethal when inserting (say) debugging statements. Without diligence it is all to easy to produce: if (condition) debug 1a; statement 1; debug 1b; else debug 2a; statement 2; debug 2b; A simple edit that looks, layout-wise, as if it would do the right thing (and do in Python!); but actually radically changes the execution flow. (This is left as an exercise to the reader... to demonstrate the point.) Could I suggest that the relevant brackets be always used as a matter of course? Something like: if (condition) { statement 1; } else { statement 2; } Then the insertion of debug statements doesn't inflict surprise. (No, I didn't fall into this hole. But it is a trap waiting to happen.) Secondly, code duplication. To give one example: 'get_var_expand_table()' appears in both 'deliver/deliver.c' and 'master/mail-process.c'. (There is also a similar looking function in 'auth/auth-request.c'.) Perhaps consideration should be given to merging such instances. For instance, my woes with "%i"-expansion being treated differently in mail-reading and mail-delivery would likely never have arisen if common code had been used. I hope that helps (constructively!). Best wishes. -- : David Lee I.T. Service : : Senior Systems Programmer Computer Centre : : Durham University : : http://www.dur.ac.uk/t.d.lee/ South Road : : Durham DH1 3LE : : Phone: +44 191 334 2752 U.K. :

2 1

[Dovecot] rc7 crashing under heavy load
by Jeff A. Earickson 08 Oct '06

08 Oct '06

Help! Our students are back and they are pounding my dovecot server to death (ie "Login process died too early - shutting down" or "too many open files" type crash). I've had my third crash today. My setup: Solaris 10, imap and imaps, 3K users coming in via horde webmail. My current connection settings are: login_max_processes_count = 2048 login_max_connections = 4096 Q: Does raising these limits actually make my problem worse or better? Are there any other variables that I should change to prevent the "too many open files"? Suggestions? Jeff Earickson Colby College

6 9

[Dovecot] sent message not always saved in imap sent folder
by Ian Mortimer 08 Oct '06

08 Oct '06

Users who have their sent folder on the imap server report that sometimes a sent message is saved locally instead of on the server. This is the error from evolution: Error while performing operation. Failed to append to whoever@imap.server:Sent: Server unexpectedly disconnected: Unknown error Appending to local `Sent' folder instead.. We're seeing this with more than one client: evolution (linux) and thunderbird (OS X). It only happens occasionally but often enough to be annoying. It could be because the user's Sent folders are in their home directories which are NFS mounted. Are there any dovecot settings which might help? Thanks -- Ian

2 3

[Dovecot] Lost email (inbox) TWICE
by Sezer Yalcin 08 Oct '06

08 Oct '06

I have been losing my inbox. It happened twice. (2 days ago and just half an hour ago) I am using RHEL 4.0 with dovecot-0.99.11-4.EL4 System uses sendmail + procmail, dovecot is up and running. Here is how it happened: I was using Mozilla Firefox with IMAP. At the same time, I logged in from Squirrel Webmail in IMAP to the same account. Squirrel mail did not show my inbox contents. And I turned back to Thunderbird and it said, ' an error has occurred and logged to system log' and INBOX WAS LOST! squirrelmail 1.4.6 and mozilla thunderbird version 1.5.0.7 I checked server log, I see I log in but there are no further logs. This happened 2 days ago, I was wondering what the hell happened. I did not have any issues before. However recently we had a hard drive crash and all home folders are restored from backups. I assume it can be related to this. My inbox and imap folders are all in mbox format. I believe dovecot could not write to log or had something unexpected which lead to loss of inbox. There were no configuration issues and all mail system including dovecot were working fine. Now it works fine as well, but I believe it will lose inbox folder again. Has anybody experienced this? Any suggestions to recover inbox? File was reset to 0 bytes (could be deleted as well), when i did 'stat' on file, there was a file with 1 new message, all were lost. Thank you. Sezer

2 1

[Dovecot] Dovecot hang
by Catalin Constantin 08 Oct '06

08 Oct '06

Hello, We run dovecot 1.0.rc6-1 on a debian system. The user auth db is postgresql and the storage folders are on a NFS partition. Latelly every 2 days the authentification hangs and i see in the logs: Sep 21 10:04:22 c005 dovecot: login: tried to change state 0 -> 17808 (if you can't login at all, see src/lib/fdpass.c) What is the problem ? What can i do ? Thank you ! -- Catalin Constantin Bounce Software http://www.bounce-software.com http://www.cabanova.ro

2 1

Re: [Dovecot] LIST command ignores "hidden=yes" for default namespace
by Bill Boebel 08 Oct '06

08 Oct '06

On Sun, August 6, 2006 7:57 pm, Timo Sirainen <tss(a)iki.fi> said: > On Wed, 2006-07-05 at 12:04 -0400, Bill Boebel wrote: >> On Sun, June 11, 2006 1:51 pm, Timo Sirainen <tss(a)iki.fi> said: >> > On Mon, 2006-05-08 at 22:03 -0400, Bill Boebel wrote: >> >I'm not sure if this is a bug or just an undesirable feature, but when I >> >have our namespace configured to match Courier's "INBOX." functionality, >> >Dovecot forces me to also define a default namespace (with no prefix). >> >Without the default namespace defined I get "NO Unknown namespace." errors >> >when trying to subscribe or unsubscribe folders. >> > >> > It was a bug when tb-extra-mailbox-sep workaround was enabled. Fixed: >> > http://dovecot.org/list/dovecot-cvs/2006-June/005709.html >> > >> >> The second part of this still seems to be the case with RC2... the LIST command >> ignores "hidden=yes". > > hidden=yes only means it's not listed in NAMESPACE command's reply and > that the namespace prefix isn't shown as a mailbox in LIST replies. > Since the prefix is empty and you're listing the mailboxes from root, it > shows the mailboxes as it should.. > > Correct way would be to just use one namespace and fix the problems > related to it. Could you test with RC6 and show me what commands give > the unknown namespace errors? Subscribing and unsubscribing worked fine > with me. Although INBOX subscription causes some problems with LSUB. > I finally got around to testing this. I tested with RC7 CSV 20060924. And I am testing with just one namespace: namespace private { separator = . prefix = INBOX. inbox = yes } I no longer get the unknown namespace errors. However, INBOX is listed twice in the LIST command: 2 list "" "*" * LIST (\HasChildren) "." "INBOX" * LIST (\HasChildren) "." "INBOX.RSS" * LIST (\HasNoChildren) "." "INBOX.Sent" * LIST (\HasNoChildren) "." "INBOX.Test" * LIST (\HasNoChildren) "." "INBOX.spam" * LIST (\HasNoChildren) "." "INBOX.Trash" * LIST (\HasNoChildren) "." "INBOX.Drafts" * LIST (\HasNoChildren) "." "INBOX" * LIST (\HasNoChildren) "." "INBOX.RSS.Kevin Minnick" If I change the namespace's inbox setting to "inbox = no" it only lists the INBOX once, however subscribing to the INBOX gives the "Unknown namespace." error. 2 list "" "*" * LIST (\HasChildren) "." "INBOX" * LIST (\HasChildren) "." "INBOX.RSS" * LIST (\HasNoChildren) "." "INBOX.Sent" * LIST (\HasNoChildren) "." "INBOX.Test" * LIST (\HasNoChildren) "." "INBOX.spam" * LIST (\HasNoChildren) "." "INBOX.Trash" * LIST (\HasNoChildren) "." "INBOX.Drafts" * LIST (\HasNoChildren) "." "INBOX.RSS.Kevin Minnick" 2 OK List completed. 4 subscribe INBOX 4 NO Unknown namespace.

2 1

[Dovecot] Using NFS - which OS would you chose
by Jonathan 08 Oct '06

08 Oct '06

Hi, I'm still looking at a large (under 100,000) user deployment of Dovecot, with a NetApp NFS server as the back-end storage. I've read a few remarks about needing the latest NFS patches from Trond Myklebust to prevent lock-ups. My management would be happiest with a vendor-supported distribution (and especially Suse Linux Enterprise Server 9 or 10). We will be running on an x86 platform. Under these circumstances, which operating system/distribution would you choose? And why? Suse SLES9 OpenSuse Debian RedHat FreeBSD Solaris_x86 Nexenta (www.nexenta.org) Many thanks for your thoughts/war stories. Jonathan.

6 9

[Dovecot] Cache fields
by Tony Kay 08 Oct '06

08 Oct '06

Hi, We are using Dovecot with maildir, and the mail client requests flags, internaldate, and uid for all messages on folder open, which on average takes 3 seconds, but for large folders is much longer. It seems like I want mail_cache_fields to include "flags", but which date corresponds to internaldate? date.received? Is UID always cached for messages, or does it have to read through the directory to get them? Are there other optimizations I can do that will improve the speed of folder opens? -- Anthony Kay University Computing Center (541) 346-1719 GPG Fingerprint: B0DB D46A 60AF FAE7 A94A 5075 0CB4 4D88 9F4F 7F09 This isn't right. This isn't even wrong. Wolfgang Pauli

2 1

[Dovecot] Date Received question
by Timothy Martin 08 Oct '06

08 Oct '06

I migrated from Courier to Dovecot, and today I notice that all my "date received" fields in my client (apple mail) show as the approx date/time of the migration rather than when the emails were received from the smtp server. Is this expected behavior? I normally sort by received date rather than sent -- since I don't care when someone sends something as much as when i get it. But those fields are totally bogus now. .tim

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