- 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

2 1

[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'

2 1

[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

4 5

[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.

3 3

[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. :

3 2

[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

3 2

[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

2 1

[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

4 7

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

2 1

[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

5 6

[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

4 4

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

1 0

[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)

2 4

[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.

2 1

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.

1 0

[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'

3 5

[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

4 8

[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

3 2

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

2 1

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

1 0

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

1 0

[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

1 0

[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

1 0

[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

4 3

[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. :

6 9

[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

6 7

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 09 Oct '06

09 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 09 Oct '06

09 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 09 Oct '06

09 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 09 Oct '06

09 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 09 Oct '06

09 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 09 Oct '06

09 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 09 Oct '06

09 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 09 Oct '06

09 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

2 1

[Dovecot] Tru64 Unix and SIA
by Simon L Jackson 08 Oct '06

08 Oct '06

I have recently written a (minimal) Tru64 Unix SIA password module for Dovecot as part of testing a Dovecot installation. Has anyone else written a Tru64 Unix SIA module? Is anyone else interested in such a module? If so, how might I/we go about getting this/such a module into the main Dovecot source? Thanks -- Simon L Jackson Carringbush.Net +- Carringbush.Net Hosting * Development * Advice Web: www.carringbush.net <http://www.carringbush.net/> Email: simon.jackson(a)carringbush.net <mailto:simon.jackson@carringbush.net> Office: +61 3 9411 4400 Support: +61 3 9411 4444 Fax: +61 3 9411 4499 Level 1 15 Bedford Street Collingwood VIC 3066 Australia P.O. Box 1464 Collingwood VIC 3066 Australia +-

3 5

[Dovecot] dovecot starts and then exit
by Ed Lucero 08 Oct '06

08 Oct '06

I've just installed dovecot on FreeBSD 6.1. Running MySQL 5.0 on another server. Postfix version 2.3.3 Dovecot starts then exits with no error messages. I've run it as a daemon and on the command line with -F option How do I run it in debug mode so I can figure out why it does not stay running. The maillog has a startup message dovecot: Dovecot v1.0.rc7 starting up Ed Dovecot.conf ## Dovecot configuration file # IC - EL 2006.09.29 protocols = imap imaps pop3 pop3s # IC - EL 2006.09.29 disable_plaintext_auth = no # IC - EL 2006.09.29 ssl_disable = no # IC - EL 2006.09.29 ssl_cert_file = /usr/share/ssl/s/Cert.pem ssl_key_file = /usr/share/ssl/s/PrivateKey.pem login_process_size = 64 # IC - EL 2006.09.29 login_processes_count = 6 # IC - EL 2006.09.29 login_greeting = InternetCrusade ready. # IC - EL 2006.09.29 #default_mail_env = maildir:/var/mail/%Ld/%Ln/%2.256Hp default_mail_env = maildir:/var/mail/%Ld/%Ln/ mail_extra_groups = mail verbose_proctitle = yes first_valid_gid = 0 protocol imap { imap_client_workarounds = delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep } protocol pop3 { # IC - EL 2006.09.29 pop3_uidl_format = %v.%u pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol lda { sendmail_path = /usr/sbin/sendmail } auth default { # IC - EL 2006.09.29 mechanisms = plain login cram-md5 digest-md5 ntlm # IC - EL 2006.09.29 passdb sql { args = usr/local/etc/dovecot-sql.conf } # IC - EL 2006.09.29 userdb static { args = uid=5000 gid=5000 home=/var/mail/%Ld/%Ln } # IC - EL 2006.09.29 socket listen { client { user = postfix group = postfix path = /var/spool/postfix/private/auth mode = 0660 } } } #dict { #quota = mysql:/etc/dovecot-dict-quota.conf #} dovecot-sql.conf driver = mysql connect = host=db1.sandiegort.com user=dovecot password=BuatSmiT dbname=icmail default_pass_scheme = PLAIN password_query = SELECT password FROM emails WHERE account = '%n' AND domain = '%d' AND alias = 0

2 1

Re: [Dovecot] SSL errors
by Bill Boebel 08 Oct '06

08 Oct '06

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. However I am still getting a ton >> of these every few seconds: >> >> Sep 29 11:30:06 director4 dovecot: imap-login: SSL_read() syscall failed: EOF >> [70.171.61.190] >> Sep 29 11:30:06 director4 dovecot: imap-login: SSL_read() syscall failed: EOF >> [24.236.204.154] >> Sep 29 11:30:06 director4 dovecot: imap-login: SSL_read() syscall failed: EOF >> [70.171.61.190] >> Sep 29 11:30:08 director4 dovecot: imap-login: SSL_read() syscall failed: EOF >> [65.242.19.3] >> > > These are client disconnects, I believe. > Yep, 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. Bill

2 1

[Dovecot] Outlook "IMAP server closed connection"
by Mark Adams 08 Oct '06

08 Oct '06

Hi All, Dovecot 1.0rc2. Currently having a problem with Outlook clients popping up with the error; "Your IMAP server has closed the connection. This may occur if you have left the connection idle for to long" I initially though this would be the imap_client_workarounds = outlook-idle option, but this is currently set and always has been. I dont think this is a known issue that has been fixed with newer releases, as we have rc2 on another server that does not have this problem. Any help thankfully recieved. Regards, Mark

2 1

Re: [Dovecot] dovecot-1.0.rc7 install probs
by Timo Sirainen 08 Oct '06

08 Oct '06

On Fri, 2006-10-06 at 19:55 -0400, Steve Maring wrote: > and the make and make install appear to go smoothly. However I am > struck by the lack on an include directory in the install location. > I'm not sure if that means anything. Doesn't mean anything. No header files are installed. > AUXLIBS=" \ > -L/usr/local/dovecot-1.0.rc7/lib/dovecot \ Postfix doesn't need any Dovecot libraries or anything to build Dovecot SASL support. > but the postfix make always dies with: > > smtpd.c:4534: error: âdovecotâ undeclared (first use in this function) Well, don't know about that. I'd ask from Postfix list.

1 0

[Dovecot] Add virtual users to the Dovecot configuration
by Jens E. Madsen Jr. 08 Oct '06

08 Oct '06

Dear Dovecot Mail List, I have used Dovecot for quite a while to service remote users on my SOHO network. A local not-for-profit asked about getting their own dedicated domain name for mail. I followed: http://www.howtoforge.com/linux_postfix_virtual_hosting to set up a virtual, but the article leaves out system accounts and I have not been able to access both system and virtual users at the same time. I have the following lines: default_mail_env = maildir:/var/spool/vmail/%d/%n/ which, when commented out, works for system users default_mail_env = mbox:~/mail/:INBOX=/var/spool/mail/%u which, when commented out, which works for virtual users If both are uncommented, only system users work. Wiki-ing and Googling, I learned that namespace could be applied to the problem. Here is the namespace from the configuration file. #namespace private { # Hierarchy separator to use. You should use the same separator for all # namespaces or some clients get confused. '/' is usually a good one. # The default however depends on the underlying mail storage format. #separator = # Prefix required to access this namespace. This needs to be different for # all namespaces. For example "Public/". #prefix = # Physical location of the mailbox. This is in same format as # default_mail_env, which is also the default for it. #location = # There can be only one INBOX, and this setting defines which namespace # has it. #inbox = yes # If namespace is hidden, it's not advertised to clients via NAMESPACE # extension or shown in LIST replies. This is mostly useful when converting # from another server with different namespaces which you want to deprecate # but still keep working. For example you can create hidden namespaces with # prefixes "~/mail/", "~%u/mail/" and "mail/". #hidden = yes #} How do I specify which users use which namespace. Is there a good description of namespaces and how to use them? Thanks Jens

2 2

Re: [Dovecot] Automatically deleting Trash a la Courier
by Jeff Kowalczyk 08 Oct '06

08 Oct '06

Timo Sirainen wrote: > # Expire plugin. Mails are expunged from mailboxes after being there the > # configurable time. The first expiration date for each mailbox is stored in > # a dictionary so it can be quickly determined which mailboxes contain > # expired mails. The actual expunging is done in a nightly cronjob, which > # you must set up: > # dovecot --exec-mail ext /usr/libexec/dovecot/expire-tool > #expire = Trash 7 Spam 30 > #expire_dict = db:/var/lib/dovecot/expire.db For users implementing the expire-tool as an email retention policy, it may be helpful to add path wildcarding and exclusion to handle users with folder heirarchies. e.g., To implement a 1-year retention policy on messages in all folders, excluding all messages in and in subfolders of 'Archived Email': expire = Trash 7 Spam 30 * 365 expire_exclude = Archived\ Email\\*

2 1

Re: [Dovecot] Dovecot vs Ports
by Jos Chrispijn 08 Oct '06

08 Oct '06

Odhiambo WASHINGTON schreef (08-10-06 9:16): > You could have as well explained the problem, if it was that serious. > After the latest portupgrade I rebooted my system and for some reason it stopped booting after loadin acpi.ko Investigated the OS with Fixit (from the first install disc booting and choosing this option from the sysinstall menu). After fsck we could mount the HD and investigate the problem. Main problem was an error in the /etc/rc.conf.. The dovecot_enable was missing the quotes... I think this is due to the portmanager (the person that has made the port for BSD) instead of Dovecot itself... > I am running this version on 30+ FreeBSD 5.5-STABLE boxes and they all > seem fine though. Perhaps I should thank God I still don't run 6.2-PRE? > I think it is a combination of OS version and the person that makes the (accurate) port for that version. Anyway we're all humans after all, so this is allways possible. Just a little bit stressing on a normal Saturdaynight :-) regards, Jos Chrispijn

4 4

[Dovecot] Searchable archives?
by Francisco Reyes 08 Oct '06

08 Oct '06

Is there a searchable archive of the lists somewhere?

3 2

[Dovecot] bug: ssl fails when using certificates with "trust" setting
by Freddy Knolderpoort 08 Oct '06

08 Oct '06

Hi, just a minor bug... I filled in the fedora tracker: **https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=208746 It concerns (fedora-)version "1.0-0.beta2.7". Regards,

3 2

[Dovecot] Dovecot vs Ports
by Jos Chrispijn 08 Oct '06

08 Oct '06

Just discovered that there might be a problem with the latest Dovecot update thru portupgrade. If I reboot my BSD (6.2-PRERELEASE), it stopped/hanged during boot-sequence. Thanks to Jack Raats problem is solved now; he will explain _exactly_ what went wrong... regards, Jos

1 0

[Dovecot] test
by Timo Sirainen 07 Oct '06

07 Oct '06

?

3 2

[Dovecot] test mail
by Timo Sirainen 07 Oct '06

07 Oct '06

Lets see if the server move actually worked..

2 1

[Dovecot] Customizing Sign-Off Message
by Gerard Seibert 07 Oct '06

07 Oct '06

This is probably a dumb question; however, I have never let a thing like that stop me before. A user can configure Dovecot to give a customized greeting when it is accessed. Is there anyway to customize the message it displays when it terminates the session? -- Gerard Seibert gerard(a)seibercom.net "Losing my virginity was a career move." Madonna

2 2

[Dovecot] Server move complete
by Timo Sirainen 07 Oct '06

07 Oct '06

Looks like everything is working. Please mail me if you find something broken.

1 0

[Dovecot] imap-login problem
by "M. Tolga Özses" 06 Oct '06

06 Oct '06

dovecot: Oct 05 16:03:07 Info: imap-login: Login: user=<kartagis>, method=plain, rip=212.98.201.1, lip=192.168.1.2 dovecot: Oct 05 16:03:07 Error: IMAP(kartagis): open(/var/mail/.temp.kunduz.org.14095.855b9feb950c2c78) failed: Permission denied dovecot: Oct 05 16:03:07 Error: IMAP(kartagis): file_lock_dotlock() failed with mbox file /var/mail/kartagis: Permission denied Hi, I get these when I attempt to check my mail. Any ideas? Regards and thanks, -- M. Tolga Özses Bilgi Teknolojisi Sabanci Üniversitesi Orhanli 34956 Tuzla Istanbul Tel: (216) 483 91 98 Web: http://people.sabanciuniv.edu/mtozses

3 2

[Dovecot] re-installation
by "M. Tolga Özses" 06 Oct '06

06 Oct '06

Hi, I reinstalled my system, therefore lost dovecot. I get this message after reinstalling imap-login: Authenticate plain failed: Plaintext authentication disabled.: method=plain, rip=192.168.1.2, lip=192.168.1.2. Can you help me? Thanks :) Regards, -- M. Tolga Özses Bilgi Teknolojisi Sabanci Üniversitesi Orhanli 34956 Tuzla Istanbul Tel: (216) 483 91 98 Web: http://people.sabanciuniv.edu/mtozses

2 1

[Dovecot] dovecot mailbox to csv
by John Heim 05 Oct '06

05 Oct '06

We (the Math department at the U of Wisconsin) recently switched over from another server to dovecot One thing that a lot of people here do is set up an on-line form that sends them email. They use formmail for this. I have them edit their procmail config so that all the messages go into a particular mail folder.... So far so good. With our old system, all messages in a folder were kept in a single file. With dovecot, they go into a couple of different directories. This is problematic because we often need to convert the form field data to csv values so it can be imported into a spreadsheet. So a professor can create an on-line form and end up with the data from it in an Excell spreadsheet. Slick (when it works). I understand that I can make dovecot store messages in a file by leaving the trailing slash off when specifying the folder name. Sample procmail segment: :0: * Subject:.*\[feedback\] .feedback But I can't get the feedback folder to show up in the list of IMAP folders in my mail client. I've tried Outlook Express and Thunderbird. If I put the slash at the end, it creates a .feedback folder and then I can see it in my mail client. But then I can't export it to cvs. Anybody know why I can't see the .feeback folder? Or maybe somebody has a good way to get data from the body of messages stored in a dovecot folder, for example, .feedback/cur/ and .feedback/new/.

3 3

[Dovecot] Site down?
by Michael Blinn 05 Oct '06

05 Oct '06

I'm getting a 'Forbidden' when accessing dovecot.org.. Have we been rooted, or is this scheduled maintenance, or..? -Michael

2 1

[Dovecot] Website down? SSL2?
by Rick Romero 05 Oct '06

05 Oct '06

I think the website is down.. I can't get to the root, or any of the 'previously visited' links I still have in my browser. How do I turn off SSLv2 support?

1 0

[Dovecot] bug with rsh/ssh connections
by David Lee 05 Oct '06

05 Oct '06

(Using rc7 code) There seems to be a bug in rsh/ssh-style connections. For reference, on a normal imap connection (port 143, 993, etc.) things are OK. The imap session ends (from a client-end command "a logout") thus: --- a logout * BYE Logging out a OK Logout completed. Connection closed by foreign host. unix-prompt% --- But when the connection had been established using rsh or ssh to the servers's "/etc/rimapd" which contains: exec /usr/dovecot/sbin/dovecot --exec-mail imap the session ends thus: --- a logout * BYE Logging out a OK Logout completed. imap(<username>): Info: Disconnected: Logged out unix-prompt% --- Note that additional, protocol-breaking, "imap(...): Info ..." line. This seems to be coming from "imap/cmd-logout.c" calling: client_disconnect(client, "Logged out"); which in turn ("imap/client.c") does: i_info("Disconnected: %s", reason); On the imap connection, this "i_info(...)" output goes (correctly) to syslog, but on the rsh/ssh connection this output seems to go to something like stdout. This strongly suggests a bug: an inconsistency between the two connection types, possibly regarding the way that stdout, stderr, syslog etc. are initialised, assigned, adjusted, etc. -- : 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. :

1 0

[Dovecot] Bug: auth_cache breaks master password feature
by Bill Boebel 05 Oct '06

05 Oct '06

When you set auth_cache_size to a value greater than zero, it breaks the master password feature in Dovecot. It appears that during a cache hit, Dovecot attempts to query the userdb for use the master user's home directory and other settings, rather than querying for the userdb settings of the user that the master was trying to log in for... causing the login to fail. Perhaps caching the userdb settings in addition to the passdb settings (since that is on the TODO list) would indirectly fix this problem. Bill

2 1

[Dovecot] dovecot with vpopmail
by nq525＠singnet.com.sg 05 Oct '06

05 Oct '06

I have been using bincimap with vpopmail for awhile and would like to give dovecot a try. Does anyone has any success configuring dovecot with vpopmail? I have installed dovecot but didn't manage to get it up with vpopmail. It will be good if someone can share their settings on dovecot.conf with me. Thanks

1 0

[Dovecot] Can't load certificate file: cert already in hash table
by Peter Abrahamsen 04 Oct '06

04 Oct '06

Hi, I've searched for this error and found nothing. When I switch on SSL, I get the following errors: >>> Oct 3 20:05:23 [dovecot] Dovecot v1.0.rc7 starting up Oct 3 20:05:24 [dovecot] Login process died too early - shutting down Oct 3 20:05:24 [dovecot] imap-login: Can't load certificate file /etc/ssl/certs/dovecot.crt: error:0B07C065:x509 certificate routines:X509_STORE_add_cert:cert already in hash table Oct 3 20:05:24 [dovecot] pop3-login: Can't load certificate file /etc/ssl/certs/dovecot.crt: error:0B07C065:x509 certificate routines:X509_STORE_add_cert:cert already in hash table - Last output repeated twice - Oct 3 20:05:24 [dovecot] child 13344 (login) returned error 89 Oct 3 20:05:24 [dovecot] child 13345 (login) returned error 89 Oct 3 20:05:24 [dovecot] child 13346 (login) returned error 89 Oct 3 20:05:24 [dovecot] child 13347 (login) returned error 89 <<< This is Gentoo on amd64 with openssl 0.9.8d. The cert and key were generated with tinyca and openssl 0.9.8c (I know, I know, it's upgrading now). I made 'em the same way I made my ldap and apache certs, which work fine. Any pointers? Also, why am I given a numeric error code? Thanks, Peter

2 1

[Dovecot] Whatever happened to rc8?
by Charles Marcus 04 Oct '06

04 Oct '06

It sounded like there was going to be one, so that some of the fixes that didn't make it into rc7 could be easily tested before releasing 1.0? -- Best regards, Charles

2 2

[Dovecot] No inbox for user error
by Ron 04 Oct '06

04 Oct '06

Hi, I'm getting 'no inbox for user' error. Set up sendmail, and can send and receive mail using Webmin/Usermin both to internal addresses and external ones. But Dovecot gives the no inbox error. I've tried telnetting in and get: +OK dovecot ready. USER myob -ERR Unknown command USER myob +UK PASS <password> +OK Logged in. -ERR No INBOX for user. No idea why the first USER command gives an error. And, of course, when I try using Evolution I get 'Cannot get POP summary'. The Dovecot config file, less all the commented out bits is: imap_listen = [::] pop3_listen = [::] imaps_listen = [::] pop3s_listen = [::] ssl_cert_file = /etc/pki/dovecot/dovecot.pem ssl_key_file = /etc/pki/dovecot/private/dovecot.pem login_dir = /var/run/dovecot-login login_chroot = yes login = imap login_user = dovecot login = pop3 default_mail_env = mbox_locks = fcntl auth = default auth_mechanisms = plain auth_userdb = passwd auth_passdb = pam auth_user = root Any and all ideas very welcome. I'm a total newbie at this server business... Thanks in advance. Ron

1 0

[Dovecot] Hooks API
by Boris Ivanov 04 Oct '06

04 Oct '06

Hi Is it possible to make hook api? I mean universal hooks any commands of pop3/imap which can trigger your modules. Not just quota etc,,, Boris

3 4

Re: [Dovecot] Errors while doing make on Solaris 9 for dovecot-1.0.rc7
by Agarwal, Lalit 03 Oct '06

03 Oct '06

Thanks. make AR=ar works -----Original Message----- From: Timo Sirainen [mailto:tss@iki.fi] Sent: Monday, September 25, 2006 1:18 PM To: Agarwal, Lalit Cc: dovecot(a)dovecot.org Subject: Re: [Dovecot] Errors while doing make on Solaris 9 for dovecot-1.0.rc7 On 25.9.2006, at 16.41, Agarwal, Lalit wrote: > rm -f liblib.a > false cru configure has detected your "ar" binary to be "false", which really doesn't work. I'm not sure what the right way to fix this would be (see what config.log says about it), but one workaround at least would be if you ran make as: make AR=ar Of course if you don't have ar at all in the path, that's your problem. :) Looks like it exists in /usr/ccs/bin/.

1 0

[Dovecot] Dovecot as LDA
by Gerard Seibert 03 Oct '06

03 Oct '06

FreeBSD 6.1-RELEASE-p8 postfix-current-2.4.20060903,3 dovecot-1.0.r7 I am experiencing a problem with dovecot as an LDA. It will not deliver mail unless the mail directory is chmod'd to 1777. Below is an example of the log file output. The dovecot.log file had over a hundred entries similar to this: deliver(gerard): Error: open(/var/mail/.temp.scorpio.seibercom.net.1123.cd38cd4d82e1368f) failed: Permission denied deliver(gerard): Error: file_lock_dotlock() failed with mbox file /var/mail/gerard: Permission denied Obviously the /var/log/maillog had similar fail warnings. By changing the permission to 1777 on the /var/mail directory and running postsuper -r ALL, I was able to get the mail delivered. What I am trying to determine is if I really should have those settings on the directory, or if I have something configured wrong in either postfix or dovecot. Postfix will deliver mail without any problem so I think it has to do with dovecot although I am not sure what. -- Gerard

3 4

[Dovecot] Quota with quota dict and peruser quota, dovecot LDA needed?
by Peter Veerman 02 Oct '06

02 Oct '06

Hi, This mail sources from the thread with this topic title: Re: [Dovecot] [SOLVED] quota with: postfixadmin, postfix, mysql & dovecot As this title does no longer cover the topic i decided to start a new thread. I have set up quota:dict with the proxy::quotadict option and i'm not using dovecot LDA. My quota table is filled with records like username: pveerman(a)nemo.kabelfoon.net path: 0 current: 0 and the personal max-quota reported by the client is okay, but the current-quota is 0. What am I doing wrong here? Peter

1 1

[Dovecot] Dovecot accepts squirrelmail, rejects fetchmail
by M. Fioretti 01 Oct '06

01 Oct '06

Hello, this is a follow-up to the thread "Fetchmail can't talk to dovecot" http://www.dovecot.org/list/dovecot/2006-September/016477.html Increasing the log level I get this in the log filed: Sep 30 15:04:19 fm dovecot: Dovecot v1.0.rc7 starting up Sep 30 15:04:22 fm dovecot: auth(default): passwd-file /etc/dovecot_user_file: Read 1 users Sep 30 15:05:05 fm dovecot: auth(default): client in: AUTH 1 PLAIN service=IMAPsecured +lip=::ffff:SERVER_IP_HERE rip=::ffff:CLient_IP_HERE resp=LONG_STRING_HERE VDBB Sep 30 15:05:05 fm dovecot: auth(default): passwd-file(user_name,::ffff:CLIENT_IP_HERE): unknown user Sep 30 15:05:07 fm dovecot: auth(default): client out: FAIL 1 user=user_name Sep 30 15:05:07 fm dovecot: imap-login: Aborted login: user=<user_name>, method=PLAIN, rip=::ffff:CLIENT_IP_HERE, +lip=::ffff:SERVER_IP_HERE, TLS Remember that when the same user name and password come from Squirrelmail on the same host where dovecot runs, everything works. Why does it fail with fetchmail? what does that message "unknown user" exactly mean? Thank you in advance for any help, Marco

3 3

[Dovecot] [SOLVED] quota with: postfixadmin, postfix, mysql & dovecot
by Peter Veerman 01 Oct '06

01 Oct '06

Hi, I'm quite new to dovecot but already quite satisfied. Your documentation in the wiki is great but on quota + mysql it is not very clear. Because of the previously mentioned I have got the following note to make which you will hopefully use to adjust your wiki documentation on per-user-quota + mysql. I've searched your mail archive as good as possible and found no messages on this. If already messages have been exactly on this topic I want to apologize for sending this one. The notes I want to make is about this page: http://wiki.dovecot.org/Quota I'm using postfix + postfixadmin & mysql and dovecot (previously I used courier-imap instead of dovecot). The problems I ran in to was with setting up the per-user quota, as the explanation at the wiki is quite vague. For instance, the dict plugin is used to keep the quota counters in the mysql backend but only one single line shows how to set-up a per user quota. Setting up a per user quota where the max-quota is stored in mysql should be made making use of this setting: ========== user_query = SELECT home, uid, gid, 'dirsize:storage=' || quota_bytes AS quota FROM users WHERE userid = '%u' ========== nowhere is mentioned that this should also! be set: =========== protocol imap { mail_plugins = quota imap_quota } protocol pop3 { mail_plugins = quota } =========== the second point I want to make is that the mysqlquery is incorrect as || does not do the job of joining the two strings. Secondly is dovecot making use of kilobytes instead of bytes like postfix (and postfixadmin) does. For this I have found the following solution: ========== user_query = SELECT maildir, 125 AS uid, 125 AS gid,\ CONCAT('dirsize:storage=', ROUND( mailbox.quota / 1024 ) ) AS quota \ FROM mailbox WHERE username = '%u' AND active = '1' ========== Here I select the quota field from the mailbox table. This is then divided by 1024 (1Kbyte) and ROUNDED off in order to get rid of the .00 that results from this division. Greetz, Peter Veerman pveerman NO-SPAM at NO-SPAM hackwerk DOT net

6 7

[Dovecot] fetchmail can't talk to dovecot
by M. Fioretti 30 Sep '06

30 Sep '06

Hello, I have dovecot q1.0-0_22.rc7 up and running on a server: I can read email from squirrelmail just fine. When I try to download email with fetchmail, however, I get the result below. Why is that happening? In dovecot.conf I have: protocols = imap imaps pop3, so why should pop3 or imap fail? Where should I look? (I'll fix the certificates problem after I've managed to get in successfully with plain imap or pop3) Thanks, Marco fetchmail: 6.3.2 querying my.server (protocol POP3) at Wed 27 Sep 2006 12:15:17 AM CEST: poll started fetchmail: POP3< +OK Dovecot ready. fetchmail: POP3> CAPA fetchmail: POP3< +OK fetchmail: POP3< CAPA fetchmail: POP3< TOP fetchmail: POP3< UIDL fetchmail: POP3< RESP-CODES fetchmail: POP3< PIPELINING fetchmail: POP3< STLS fetchmail: POP3< USER fetchmail: POP3< SASL PLAIN DIGEST-MD5 fetchmail: POP3< . fetchmail: POP3> STLS fetchmail: POP3< +OK Begin TLS negotiation now. fetchmail: Issuer Organization: SomeOrganization fetchmail: Issuer CommonName: localhost.localdomain fetchmail: Server CommonName: localhost.localdomain fetchmail: Server CommonName mismatch: localhost.localdomain != my.server fetchmail: my.server key fingerprint: ... fetchmail: Server certificate verification error: self signed certificate fetchmail: POP3> CAPA fetchmail: POP3< +OK fetchmail: POP3< CAPA fetchmail: POP3< TOP fetchmail: POP3< UIDL fetchmail: POP3< RESP-CODES fetchmail: POP3< PIPELINING fetchmail: POP3< USER fetchmail: POP3< SASL PLAIN DIGEST-MD5 fetchmail: POP3< . fetchmail: POP3> USER user_name fetchmail: POP3< +OK fetchmail: POP3> PASS * fetchmail: POP3< -ERR Authentication failed. fetchmail: Authentication failed. fetchmail: Authorization failure on user_name(a)my.server fetchmail: POP3> QUIT fetchmail: POP3< +OK Logging out fetchmail: 6.3.2 querying my.server (protocol POP3) at Wed 27 Sep 2006 12:15:21 AM CEST: poll completed fetchmail: Query status=3 (AUTHFAIL) fetchmail: Writing fetchids file. fetchmail: normal termination, status 3 fetchmail: Writing fetchids file. if I try with IMAP the part after the certificate verification error is: fetchmail: IMAP> A0003 CAPABILITY fetchmail: IMAP< * CAPABILITY IMAP4rev1 SASL-IR SORT THREAD=REFERENCES MULTIAPPEND UNSELECT LITERAL+ IDLE CHILDRE N NAMESPACE LOGIN-REFERRALS AUTH=PLAIN AUTH=DIGEST-MD5 fetchmail: IMAP< A0003 OK Capability completed. fetchmail: Protocol identified as IMAP4 rev 1 fetchmail: IMAP> A0004 LOGIN "user_name" * fetchmail: IMAP< A0004 NO Authentication failed. fetchmail: IMAP> A0005 * fetchmail: Authorization failure on user_name(a)my.server fetchmail: IMAP> A0006 LOGOUT fetchmail: IMAP< A0005 BAD Error in IMAP command received by server. fetchmail: IMAP< * BYE Logging out and I don't see any error message related to this in the server log.

2 3

Re: [Dovecot] SSL errors
by Bill Boebel 29 Sep '06

29 Sep '06

On Fri, September 29, 2006 11:47 am, Charles Marcus <CMarcus(a)Media-Brokers.com> said: > Bill Boebel wrote: >> I have a Dovecot server set up as a proxy and getting a ton of these >> errors, but I'm not sure where to begin troubleshooting it. I'm >> hearing frequently that Outlook users who use IMAP with SSL are >> getting disconnected often as a result. Any suggestions?... > > Need more details... Dovecot version? Platform? > Sorry... Red Hat ES4 (2.6.9-42.0.2.EL), latest dovecot CVS 20060926. login_process_per_connection = no login_processes_count = 3 login_max_processes_count = 10 login_max_connections = 4000 login_process_size = 64 Also added this to the dovecot init script to allocate more file descriptors to dovecot: start() { echo -n $"Starting $prog: " + ulimit -n 16384 daemon /usr/sbin/dovecot Also, seeing this error occasionally... Sep 29 11:34:15 director4 dovecot: imap-login: SSL_write() syscall failed: Bad file descriptor [166.137.221.91] Maybe nothing to worry about now that I have increased "login_process_size". Checking with customers to see if the Outlook IMAP SSL disconnects are still frequently occurring. Thanks, Bill

1 0

[Dovecot] SSL errors
by Bill Boebel 29 Sep '06

29 Sep '06

I have a Dovecot server set up as a proxy and getting a ton of these errors, but I'm not sure where to begin troubleshooting it. I'm hearing frequently that Outlook users who use IMAP with SSL are getting disconnected often as a result. Any suggestions?... Sep 29 11:12:07 director4 dovecot: imap-login: SSL_accept() failed: error:1409C041:SSL routines:SSL3_SETUP_BUFFERS:malloc failure [64.81.197.28] Sep 29 11:12:07 director4 dovecot: imap-login: SSL_accept() syscall failed: EOF [24.236.204.154] Bill

2 1

Re: [Dovecot] SSL errors
by Bill Boebel 29 Sep '06

29 Sep '06

On Fri, September 29, 2006 11:23 am, Bill Boebel <bill(a)webmail.us> said: > I have a Dovecot server set up as a proxy and getting a ton of these errors, but > I'm not sure where to begin troubleshooting it. I'm hearing frequently that > Outlook users who use IMAP with SSL are getting disconnected often as a result. > Any suggestions?... > > Sep 29 11:12:07 director4 dovecot: imap-login: SSL_accept() failed: > error:1409C041:SSL routines:SSL3_SETUP_BUFFERS:malloc failure [64.81.197.28] > > Sep 29 11:12:07 director4 dovecot: imap-login: SSL_accept() syscall failed: EOF > [24.236.204.154] > 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. However I am still getting a ton of these every few seconds: Sep 29 11:30:06 director4 dovecot: imap-login: SSL_read() syscall failed: EOF [70.171.61.190] Sep 29 11:30:06 director4 dovecot: imap-login: SSL_read() syscall failed: EOF [24.236.204.154] Sep 29 11:30:06 director4 dovecot: imap-login: SSL_read() syscall failed: EOF [70.171.61.190] Sep 29 11:30:08 director4 dovecot: imap-login: SSL_read() syscall failed: EOF [65.242.19.3]

2 1

[Dovecot] Passdb passwd on FreeBSD
by Jim Flowers 29 Sep '06

29 Sep '06

I am trying to use dovecot for both virtual and local pop3 mailboxes. When I try to access a local account, I get an "unknown user" reject from 'passdb sql', as expected. However, I also get a reject from 'passdb pam' with the message: dovecot: auth(default_with_listener): pam(username(a)domain.tld,###.###.###.###): pam_authenticate() failed: authentication error. Is this because it is trying to authenticate username(a)domain.tld instead of just username? What can I do about it? Although I have a block for 'passdb passwd' following the 'passdb pam' block, there is nothing in the log. Why is this, I wonder? Any help to point me in the right direction will be appreciated. Thanks. -- Jim Flowers <jflowers(a)ezo.net> -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

1 0

[Dovecot] Quota plugin rewrite
by Timo Sirainen 28 Sep '06

28 Sep '06

Backported from CVS HEAD to branch_1_0. You can get it as a patch from http://dovecot.org/patches/1.0/quota-rewrite.diff New features include support for multiple quota roots, so you could have eg. per-user quota and a larger domain quota (although no backend actually supports this yet..). The more important feature is that you can configure specific mailboxes to have a bit more space available for them, such as Trash or Spam. The configuration has also changed. Normally you'd use something like this: quota = maildir # 1GB quota in general quota_rule = *:storage=1048576 # Trash mailbox gets 100MB more (so max. 1,1GB) quota_rule2 = Trash:storage=102400 # Spam mailbox gets also +100MB (still maxes at 1,1GB, not 1,2GB) quota_rule3 = Spam:storage=102400 You can place all the above into plugin { .. } section in dovecot.conf. In userdb if users have different quotas you'd then need to override only quota_rule (not quota, quota_rule2 and quota_rule3). I tested quickly that this seemed to work as described above. Please test and report. :)

2 6

[Dovecot] [BUG(let)] Dovecot does not recognize threaded/reentrant mysql libs
by OpenMacNews 28 Sep '06

28 Sep '06

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hi, i build mysql (currently v5.0.22) on OSX 10.4.7 w/ threading enabled. i.e., i build the reentrant libs: libmysqlclient_r.dylib rather than the 'usual': libmysqlclient.dylib currently, to make Dovecot 'play nice' and recognize the reentrant libs, I: perl -pi -e 's/AC_CHECK_LIB\(mysqlclient,/AC_CHECK_LIB\(mysqlclient_r,/g' configure.in perl -pi -e 's/mysql_lib=\"\-lmysqlclient \-lz \-lm"/mysql_lib=\"\-lmysqlclient_r \-lz \-lm\"/g' configure.in then: autoreconf -i -f before configure, etc. subsquent build/exec/function all seem OK with this mod, and the linked, reentrant mysql lib: ls -al /usr/local/dovecot/libexec/dovecot/dovecot-auth -rwxr-xr-x 1 root wheel 950616 Sep 28 09:59 /usr/local/dovecot/libexec/dovecot/dovecot-auth otool -L /usr/local/dovecot/libexec/dovecot/dovecot-auth /usr/local/lib/libiconv.2.dylib (compatibility version 7.0.0, current version 7.0.0) /usr/lib/libpam.1.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/local/mysql/lib/mysql/libmysqlclient_r.15.dylib (compatibility version 16.0.0, current version 16.0.0) /usr/local/lib/libreadline.5.1.dylib (compatibility version 5.0.0, current version 5.1.0) /usr/local/ncurses/lib/libncurses.5.5.dylib (compatibility version 5.5.0, current version 5.5.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 88.1.6) /usr/local/ssl/lib/libssl.0.9.8.dylib (compatibility version 0.9.8, current version 0.9.8) /usr/local/ssl/lib/libcrypto.0.9.8.dylib (compatibility version 0.9.8, current version 0.9.8) /usr/local/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.3) /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0) once verified that these changes are sufficient (anybody else got eyeballs on this?), a conditional in configure should do ... richard - -- /"\ \ / ASCII Ribbon Campaign X against HTML email, vCards / \ & micro$oft attachments [GPG] OpenMacNews at gmail dot com fingerprint: 50C9 1C46 2F8F DE42 2EDB D460 95F7 DDBD 3671 08C6 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Darwin) iEYEARECAAYFAkUcAcUACgkQlffdvTZxCMYQXACgustNRKkqu97hWI88CTQwxZG7 q10AniSAcnhYesxf68x4y5Z7pg6uf/2f =py2/ -----END PGP SIGNATURE-----

1 0

[Dovecot] LDA and chroot
by Uldis Pakuls 28 Sep '06

28 Sep '06

Hi, I'd like to ask: is it possible to use Dovecot's LDA with mail_chroot variable set, e.g. "mail_chroot = /serv/storage19/vmail"? Without "mail_chroot" set all works fine. If mail_chroot is set and user database contains relative paths to home directory (without chroot part like "domain.net/user") deliver ignores this and tries to work at real root, while imap and pop3 processes founds home directory correctly. If users database contains full paths deliver works correctly, but imap/pop3 processes tries to access chroot directory + full path (and fails). Home directory in form "/chroot/path/./domain.net/user" solves the problem..., but as I understand, it is jut form to override default. Thus I can't find a way to correctly set default chroot path. Any suggestions? Tnx, Uldis

1 0

[Dovecot] LDA directly to Maildir/cur
by Scott Murman 28 Sep '06

28 Sep '06

i'm tired of dealing with buggy clients so i'm moving more processing into the server-side. i configured procmail as LDA with maildir-style mailboxes. i would like to simulate an automatic "mark as read" feature during procmail processing. simplest way looks to be forcing delivery directly to Maildir/cur instead of Maildir/new, but i suspect this may screw up dovecot. will this work? is there another (better) method? -SM-

3 3

[Dovecot] dovecot checkpassword passdb and vmailmgr
by Mij 28 Sep '06

28 Sep '06

hello some times ago I posted some patches to workaround vmailmgr not fitting into dovecot's passdb-checkpassword authentication module. Yesterday I spent some spare time for carrying out a cleaner solution for this problem. Check out these patches. If you're not interested in merging them, I will make them available at the same page I used for the former solution [ http://mij.oltrelinux.com/net/dovecot-qmail-vmailmgr ]; there were some 20 people/month that checked it out. This is a brief explanation of the patches: The root of all evil is that the checkpassword interface [ http://cr.yp.to/checkpwd/interface.html ] leaves room to interpretation when the scope is not system login. Vmailmgr and vpopmail, for example, collapse many mail users on the same system account. So, what "home" is here is not specified. In the case of vmailmgr, it's "checkvpw" sets HOME to the system user's home, and returns the path of the actual mail user differently. The solution I applied for this problem is to generalize the process that fetches authentication data (what currently is "checkpassword- reply"). I was set up for a specific passdb-vmailmgr module, but this would have seen a lot of code replication. Similarly (but I did not inspect further), I guess vpopmail can fit in this solution as well. So 1) provide a module "vmailmgr-reply", with the same behavior as checkpassword-reply, that's aware of the way checkvpw returns accounting information and pass this back to dovecot transparently so, this patch ships vmailmgr-reply along with checkpassword-reply (name them "fetcher"s for brevity) The idea is that every checkpassword-compatible module may have its own fetcher for passing correct info back to dovecot. Now with this generalization, the user must be able to specify if its checkpassword module needs a custom fetcher, and if it does, what's its path. So 2) modify auth/passdb-checkpassword.c and pump "args =". By default it takes the path of the checkpassword module (e.g. "checkvpw"), now it can be appended another field, that is the path of the custom fetcher. If this optional is omitted, the default checkpassword-reply will be used, and the cp module is supposed to behave like dovecot expects from it. Otherwise, a comma appear after the first path. e.g. passdb checkpassword { args = /xyz/checkvpw,/libexec/vmailmgr-reply } if one needs to specify paths with commas in the first one, commas can be escaped with \ (eg args=first\,path,second_path) Last but not least, the patch addresses again the problem with colons in paths. Currently, dovecot dictates no colons can exist in mailbox path names. In UNIX, no such constraint exist. Moreover, paths with colons are common when working specifically with qmail (see dot-qmail). When dovecot encounters ':', it truncates the path. This way, for example, if the authentication module returned home "/ path/name:surname", dovecot will truncante it to "/path/name". If name exist, name:surname will browse his mail without effort. All this comes from dovecot parsing params on MAIL environment (INDEX, INBOX, CONTROL), but it also happens if none of them was actually specified. So 3) modify lib-storage/index/maildir/maildir-storage.c for fixing the parsing problem with the mail environment. [ I did not provide the same fix for the remaining storages, but this can easily be done by copy/paste if convenient ]. For simplification and without loss of generality, this fix mandates ":INBOX=", ":INDEX=" and ":CONTROL=" params to follow in this order, if they appear. [ a minor patch agains auth/Makefile.am is provided for including vmailmgr-reply when building the rest of the auth stuff ] Any comment on this is welcome for discussion. bye

1 0

[Dovecot] Big sites using Dovecot
by Jonathan 28 Sep '06

28 Sep '06

Hi, Are there any big Dovecot sites (say 50,000-100,000) users on this list? What sort of hardware do you use. What sort of problems do you see? Many thanks, Jonathan.

14 22

Re: [Dovecot] syslog messages
by Rich West 27 Sep '06

27 Sep '06

After commenting out the "passdb pam" section and uncommenting "passdb ldap", with the "args = /etc/dovecot-ldap.conf", the syslog messages went completely away, and everything continued to work. I just thought I would mention it in the event that anyone else was seeing similar problems in the future. :) -Rich > > (I sent this last night, but to the wrong address.. argh) > > After an upgrade to FC5, and a rebuild and install of dovecot 1.0RC7, > > I've been getting a LOT of syslog messages like the following: > > Sep 26 21:47:55 myhost dovecot-auth: nss_ldap: reconnected to LDAP > > server ldap://ldap.mydomain.com after 1 attempt > > > > Now, everything is working fine as far as I can tell (it's only been a > > rocky day since the upgrade.. and that was littered with other LDAP > > related problems), but I was wondering why it was even using > > nss_ldap... I have dovecot configured to connect to LDAP directly. > > > > My dovecot.conf contains: > > auth default { > > # Space separated list of wanted authentication mechanisms: > > # plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi > > mechanisms = plain > > ... > > passdb pam { > > } > > ... > > # LDAP database > > #passdb ldap { > > # Path for LDAP configuration file, see doc/dovecot-ldap.conf for > > example > > #args = > > #} > > ... > > # LDAP database > > userdb ldap { > > # Path for LDAP configuration file, see doc/dovecot-ldap.conf for > > example > > args = /etc/dovecot-ldap.conf > > } > > > > And I am wondering if I missed something obvious here... > > > > I'm going to try commenting out the "passdb pam" section, uncommenting > > the "passdb ldap" section and see if that allows for everything to go > > directly to LDAP (and not rely on nss_ldap or pam_ldap). > > > > -Rich > > >

1 0

Re: [Dovecot] support for UW-style mbox
by Rich West 27 Sep '06

27 Sep '06

> UW-IMAP will automatically append the contents of /var/spool/mail/user to > ~user/mbox (and then clear /var/spool/mail/user) if ~user/mbox exists. > I'd like to mimic that action with Dovecot. (I'm probably going to be unlucky, > as an earlier respondent pointed out). > > Sorry to show my ignorance, but I thought delivery was a function > of the MTA (Exim in my case), which would require a change to my exim > config file, and would probably not then be a per-user thing. > (i.e. with UW-IMAP, if ~user/mbox doesnt exist, mail gets left in > /var/spool/mail/user). > I need to read about dovecot.conf No, you are correct. Delivery is handled by the MTA. Dovecot just needs to know where to access it. By default, for example, with Sendmail, it will place the email in /var/spool/mail (unless you change some back-end code somewhere along the line), and then you can use procmail (with a global procmailrc file in /etc) to place the mail where you want it to go.. I haven't used UW-IMAP in a while now (well over a year and a half). I stopped using it at all of my supported sites because, even though it was simple to manage, it was just way too slow. From what I remember, the UW implementation is such that UW-IMAP will read from the user's mbox file if it exists, and if it doesn't, it will read from <spooldir>/<username> (in this case, /var/spool/mail/user). UW-IMAP (or any IMAP) wouldn't actually do the delivery, so writing to the spool directory temporarily and then moving it to the home directory shouldn't actually happen. However, I don't truly remember how it worked under the hood, but that just doesn't seem right to me (too much chance for conflict). I do remember (back in the day) the headaches we would get when trying to debug a "lost mail" problems (with a centralized /var/spool/mail directory) and it turned out the user in question had created an mbox file which had next to nothing in it. :) -Rich

2 2

[Dovecot] syslog messages
by Rich West 27 Sep '06

27 Sep '06

(I sent this last night, but to the wrong address.. argh) After an upgrade to FC5, and a rebuild and install of dovecot 1.0RC7, I've been getting a LOT of syslog messages like the following: Sep 26 21:47:55 myhost dovecot-auth: nss_ldap: reconnected to LDAP server ldap://ldap.mydomain.com after 1 attempt Now, everything is working fine as far as I can tell (it's only been a rocky day since the upgrade.. and that was littered with other LDAP related problems), but I was wondering why it was even using nss_ldap... I have dovecot configured to connect to LDAP directly. My dovecot.conf contains: auth default { # Space separated list of wanted authentication mechanisms: # plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi mechanisms = plain ... passdb pam { } ... # LDAP database #passdb ldap { # Path for LDAP configuration file, see doc/dovecot-ldap.conf for example #args = #} ... # LDAP database userdb ldap { # Path for LDAP configuration file, see doc/dovecot-ldap.conf for example args = /etc/dovecot-ldap.conf } And I am wondering if I missed something obvious here... I'm going to try commenting out the "passdb pam" section, uncommenting the "passdb ldap" section and see if that allows for everything to go directly to LDAP (and not rely on nss_ldap or pam_ldap). -Rich

1 0

Re: [Dovecot] Big sites using Dovecot
by Bill Boebel 27 Sep '06

27 Sep '06

On Thu, September 21, 2006 1:14 pm, Jonathan <dovecot(a)redigloo.org> said: > Are there any big Dovecot sites (say 50,000-100,000) users on this > list? Yes, Webmail.us. Many multiples of that number :) > What sort of hardware do you use. 80 backend IMAP servers. 5 front-end IMAP-proxy servers. All running Dovecot. The boxes are single AMD CPU, 1GB RAM, and 4 SATA drives. DRBD used to replicate data between servers. > What sort of problems do you see? Dovecot doesn't need much CPU, but it needs a lot of disk. So give it lots of spindles, either in one big box or many small boxes like we do. Right now the only problem we have is the Dovecot proxy software sometimes disconnects imap sessions that it should not disconnect. Since Timo is very busy, we are working on a patch for this. http://www.dovecot.org/list/dovecot/2006-August/015401.html Bill

3 2

[Dovecot] SSL_accept failed
by Timothy Martin 26 Sep '06

26 Sep '06

Hello, I'm new to dovecot. I just installed it a few days ago on FreeBSD via the ports and got it up and running without too much trouble. Although yesterday I turned on the SSL/TLS features and tried to get secure connections to work. I don't get any error messages when launching dovecot, I saw it successfully create the SSL parameters after first enabling the feature yet I can't seem to get a successful connection. Normal non- ssl connections work fine. What happens: 1) my client claims to be attempting the connection. 2) things go on for some time with nothing happening 3) finally the dovecot log pops up with these messages dovecot: Sep 09 02:25:23 Warning: imap-login: SSL_accept() syscall failed: EOF [x.x.x.x] dovecot: Sep 09 02:25:23 Info: imap-login: Disconnected: rip=x.x.x.x, lip=x.x.x.x, TLS handshake dovecot: Sep 09 02:26:23 Info: imap-login: Disconnected: Inactivity: rip=x.x.x.x, lip=x.x.x.x, TLS handshake FYI: I've regenerated a fresh cert and key, just for dovecot and I'm using Mac OS X's Mail client. Any clues? .tim

6 17

[Dovecot] log tools with html for dovecot
by Robert Schetterer 26 Sep '06

26 Sep '06

Hi @ll, are there any recommandations for logging tools with html display for dovecot thx -- Diese Nachricht wurde auf Viren und andere gefährliche Inhalte untersucht und ist - aktuelle Virenscanner vorausgesetzt - sauber.

2 2

[Dovecot] Error: pipe() failed: Too many open files
by Dirk Essl 26 Sep '06

26 Sep '06

Hi, I am currently migrating a big bunch of mail accounts to a dovecot server running 1.0rc2 on Solaris 10 suddenly all imap processes died and I see this in my dovecot.log: dovecot: Sep 26 14:54:31 Error: pipe() failed: Too many open files dovecot: Sep 26 14:54:31 Fatal: dup2(stderr) failed: Bad file number dovecot: Sep 26 14:54:31 Error: child 29376 (imap) returned error 89 dovecot: Sep 26 15:15:48 Error: pipe() failed: Too many open files dovecot: Sep 26 15:15:48 Fatal: dup2(stderr) failed: Bad file number dovecot: Sep 26 15:15:49 Error: child 1563 (imap) returned error 89 dovecot: Sep 26 15:15:55 Error: pipe() failed: Too many open files dovecot: Sep 26 15:15:55 Fatal: dup2(stderr) failed: Bad file number dovecot: Sep 26 15:15:55 Error: child 1572 (imap) returned error 89 dovecot: Sep 26 15:15:58 Error: pipe() failed: Too many open files dovecot: Sep 26 15:15:58 Fatal: dup2(stderr) failed: Bad file number dovecot: Sep 26 15:15:58 Error: child 1577 (imap) returned error 89 dovecot: Sep 26 15:18:25 Error: pipe() failed: Too many open files dovecot: Sep 26 15:18:25 Fatal: dup2(stderr) failed: Bad file number dovecot: Sep 26 15:18:25 Error: child 1659 (imap) returned error 89 dovecot: Sep 26 15:18:27 Error: pipe() failed: Too many open files dovecot: Sep 26 15:18:27 Fatal: dup2(stderr) failed: Bad file number dovecot: Sep 26 15:18:27 Error: child 1662 (imap) returned error 89 dovecot: Sep 26 15:18:32 Error: socketpair() failed: Too many open files dovecot: Sep 26 15:18:32 Error: Temporary failure in creating login processes, slowing down for now dovecot: Sep 26 15:18:32 Error: pipe() failed: Too many open files what could cause the error? is this from Solaris or from dovecot? TIA dirk

2 1