- dovecot - dovecot.org

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

11 Oct '06

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

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

10 Oct '06

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

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

10 Oct '06

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

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

10 Oct '06

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

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

10 Oct '06

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

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

10 Oct '06

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

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

10 Oct '06

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

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

10 Oct '06

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

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

10 Oct '06

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

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

10 Oct '06

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

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

10 Oct '06

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

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[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

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[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

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[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

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[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. :

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

09 Oct '06

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

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

09 Oct '06

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

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[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

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

09 Oct '06

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

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

09 Oct '06

On Sun, Oct 08, 2006 at 10:25:53PM +0300, Timo Sirainen wrote: > On Fri, 2006-10-06 at 21:00 -0500, Steven F Siirila wrote: > > I am running Dovecot 1.0-rc6 along with dovecot-sieve from 2006-10-05 CVS. > > I am calling dovecot deliver from Postfix (main.cf): > > > > mailbox_command = /opt/dovecot/libexec/dovecot/deliver > > > > Upon switching to dovecot deliver, I observed two problems: > > > > 1) An extraneous "From " header now appears at the top of each message > > delivered, e.g.: > > > > From dovecot.deliver Fri Oct 06 19:59:57 2006 > > From sfs(a)tc.umn.edu Fri Oct 6 19:59:57 2006 > > Return-Path: <sfs(a)tc.umn.edu> > > > > Using Postfix delivery the first of these lines does not appear. > > This, of course, confuses MUAs. > > Don't give F flag to Postfix's pipe command. The messages in question are accepted by the Postfix smtpd process and processed by Postfix, and handed off to dovecot deliver. I am not specifying an F flag anywhere. If I remove the "mailbox_command" I specified above, Postfix delivers the mail with only the one "From " header -- with the mailbox_command above (no options specified), I get two "From " headers. > Although this reminds me that the "dovecot.deliver" is wrong in there.. > Hmm. I think I'll add a maildrop-compatible -f <envelope> parameter > here. How will this help me? I don't even want the added "From " header. If Postfix is not supposed to be writing one, then how do I tell it not to and how does Postfix tell dovecot deliver what to put in the "From " header it writes? (It must be the proper return address seen in the original SMTP transaction as the MAIL FROM value) > There, done in CVS. I'll also make 1.0rc8 release today. > > > 2) The "Content-Length:" header appears after a blank line, essentially > > putting it into the RFC822 body, e.g.: > > > > User-Agent: Mutt/1.4.2.1i > > X-UID: 11510 > > Status: > > X-Keywords: > > > > Content-Length: 200 > > > > test > > Are you sure it's a blank line? Dovecot adds lots of spaces after > X-Keywords which could just make it look like that. You're correct; the line prior to the "Content-Length:" header was indeed an "X-Keywords:" header padded out to exactly 80 characters, making it appear that there was an extra blank line after it (my xterm window is set to 80 columns). -- Steven F. Siirila Office: Lind Hall, Room 130B Internet Services E-mail: sfs(a)umn.edu Office of Information Technology Voice: (612) 626-0244 University of Minnesota Fax: (612) 626-7593

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[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.

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[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/

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[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

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[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

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[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

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[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.

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[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

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[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. :

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[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

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[Dovecot] sent message not always saved in imap sent folder
by Ian Mortimer 09 Oct '06

09 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

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[Dovecot] Lost email (inbox) TWICE
by Sezer Yalcin 09 Oct '06

09 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

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[Dovecot] Dovecot hang
by Catalin Constantin 09 Oct '06

09 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

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Re: [Dovecot] LIST command ignores "hidden=yes" for default namespace
by Bill Boebel 09 Oct '06

09 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.

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[Dovecot] Using NFS - which OS would you chose
by Jonathan 09 Oct '06

09 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.

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[Dovecot] Cache fields
by Tony Kay 09 Oct '06

09 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

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[Dovecot] Date Received question
by Timothy Martin 09 Oct '06

09 Oct '06

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

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[Dovecot] Tru64 Unix and SIA
by Simon L Jackson 09 Oct '06

09 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 +-

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[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

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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

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[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

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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.

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[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

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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\\*

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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

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

08 Oct '06

Is there a searchable archive of the lists somewhere?

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[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,

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[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

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[Dovecot] test
by Timo Sirainen 08 Oct '06

08 Oct '06

?

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

07 Oct '06

Lets see if the server move actually worked..

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[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

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