- dovecot - dovecot.org

[Dovecot] 1.0-test38
by Timo Sirainen 02 Sep '04

02 Sep '04

http://dovecot.org/test/ - Recent flag fixes - saving/copying mails into maildir which didn't have index files was broken - output stream fix - pop3 crashfix - mbox_dirty_syncs fixes, also disabling it didn't work before - etc. There are still some crashes and I don't remember if I fixed a problem with mboxes where expunging mails while new mails were coming caused some breakages.. but I can't reproduce it anymore. Anyway I think that could be fixed with disabling dirty syncs.

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RE: [Dovecot] Dovecots pop3-UIDL command impl. not RFC compliant ?
by Mark Lidstone 02 Sep '04

02 Sep '04

Errr. 0x21-0x7E is !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefgh ijklmnopqrstuvwxyz{|}~ I can see 0-9 and \. in there. Mark Lidstone IT and Network Support Administrator BMT SeaTech Ltd Grove House, Meridians Cross, 7 Ocean Way Ocean Village, Southampton. SO14 3TJ. UK Tel: +44 (0)23 8063 5122 Fax: +44 (0)23 8063 5144 E-Mail: mailto:mark.lidstone@bmtseatech.co.uk Website: www.bmtseatech.co.uk ======================================================================== == Confidentiality Notice and Disclaimer: The contents of this e-mail and any attachments are intended only for the use of the e-mail addressee(s) shown. If you are not that person, or one of those persons, you are not allowed to take any action based upon it or to copy it, forward, distribute or disclose the contents of it and you should please delete it from your system. BMT SeaTech Limited does not accept liability for any errors or omissions in the context of this e-mail or its attachments which arise as a result of Internet transmission, nor accept liability for statements which are those of the author and not clearly made on behalf of BMT SeaTech Limited. ======================================================================== == -----Original Message----- From: mymailingslists(a)gmx.at [mailto:mymailingslists@gmx.at] Sent: 02 September 2004 14:15 To: dovecot(a)dovecot.org Subject: [Dovecot] Dovecots pop3-UIDL command impl. not RFC compliant ? Hi ! POP3-RFC (1939) speaks about UIDL command: The unique-id of a message is an arbitrary server-determined string, consisting of one to 70 characters in the range 0x21 to 0x7E, which uniquely identifies a message within a maildrop and which persists across sessions. When I issue an UIDL command (dovecot 0.99.10.9) I get replies like 1 1093990148.1 2 1093990148.2 3 1093990148.3 ... . You see the problem ? '0'-'9' and '.' are not in range 0x21-0x7E ! ---------------------------------------------------------------------- Currently I'm tracking down a nasty problem with Outlook 2003 together with dovecot acting as pop3 server. Multile pop3 accounts, with 'leave mail on server' on. (cant turn it off) for no apparent reason, a couple of mails (just a few out of thousands/hundrets) get re-downloaded again, and again, and again ... as if client had not seen it before. Might be a client problem ... while trying to find out the reason for this behaviour if found this UIDL thing. I fear it might not be the true reason/problem for my problems with outlook redownloading certian mails forevr, but I thought it doesnt hurt to report it ;)

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[Dovecot] starting multiples instances of dovecot listening on same port
by mymailingslists＠gmx.at 02 Sep '04

02 Sep '04

Of course it's useless and this just can't work ... if I try it returns with an error message. Can't bind to port xy. No problem, that's the way it should be, but further strange things worth mentioning happen. After the second instance quits with error msg, the currently running instance doesn't accept any client connections anymore. Needs to be restarted. (currently I'm only using dc 0.99.10.9 as pop3 server) That's really no problem, but strange :> (I admit I'm somewhat curious if this problem is specific to my setup or if its happening everywhere)

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[Dovecot] mutt polling imap mailboxes
by Martin Ehmsen 02 Sep '04

02 Sep '04

Hi... I have the exact same problem as being described in this posting from february: http://www.dovecot.org/list/dovecot/2004-February/002950.html That mutt in combination with dovecot dosen't show correctly which folders contains new messages. It is starting to bug me very much, so i'm willing to do about everything to help fix this problem. The problem is, that I don't know if it's a mutt or dovecot problem? I'm not a novice c-hacker, so I shoud be able to test about every idea that someone has about where this problem comes from. Hope someone will help me in my quest to crush this bug. Thanks in advance Martin

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[Dovecot] Dovecots pop3-UIDL command impl. not RFC compliant ?
by mymailingslists＠gmx.at 02 Sep '04

02 Sep '04

Hi ! POP3-RFC (1939) speaks about UIDL command: The unique-id of a message is an arbitrary server-determined string, consisting of one to 70 characters in the range 0x21 to 0x7E, which uniquely identifies a message within a maildrop and which persists across sessions. When I issue an UIDL command (dovecot 0.99.10.9) I get replies like 1 1093990148.1 2 1093990148.2 3 1093990148.3 ... . You see the problem ? '0'-'9' and '.' are not in range 0x21-0x7E ! ---------------------------------------------------------------------- Currently I'm tracking down a nasty problem with Outlook 2003 together with dovecot acting as pop3 server. Multile pop3 accounts, with 'leave mail on server' on. (cant turn it off) for no apparent reason, a couple of mails (just a few out of thousands/hundrets) get re-downloaded again, and again, and again ... as if client had not seen it before. Might be a client problem ... while trying to find out the reason for this behaviour if found this UIDL thing. I fear it might not be the true reason/problem for my problems with outlook redownloading certian mails forevr, but I thought it doesnt hurt to report it ;)

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[Dovecot] dovecot+postifx+ldap
by venne 02 Sep '04

02 Sep '04

hi, i'm trying to set a dovecot/pop + postfix couple with ldap authentification. and i'v got a lots of troubles. hers's my dovecot.conf protocols = pop3 login = imap login = pop3 first_valid_gid = 1000 last_valid_gid = 0 mail_extra_groups = mail default_mail_env = maildir:/var/mail/%1u/%u/Maildir mbox_locks = dotlock flock auth = default auth_mechanisms = plain auth_userdb = ldap /etc/dovecot-ldap.conf auth_passdb = ldap /etc/dovecot-ldap.conf auth_verbose = yes here's dovecot-ldap.conf hosts = 192.168.128.1 dn = cn=manager,o=dental-on-line dnpass = dolmaster ldap_version = 3 base = ou=002f83,ou=machines,ou=fr,o=dental-on-line deref = never scope = subtree user_attrs = uid user_filter = (&(objectClass=posixAccount)(uid=%u)) pass_attrs = uid,userPassword pass_filter = (&(objectClass=posixAccount)(uid=%u)) default_pass_scheme = PLAIN user_global_uid = 1000 user_global_gid = 1000 and, a ldif exempl: dn: uid=mwerly, ou=002F83, ou=machines, ou=fr, o=dental-on-line displayName: WERLY Marc shadowExpire: -1 mobile: 000 objectClass: top objectClass: person objectClass: organizationalPerson objectClass: inetOrgPerson objectClass: posixAccount objectClass: shadowAccount userPassword:: eHh4 shadowLastChange: 10000 facsimileTelephoneNumber: 01.43.21.54.75 uid: mwerly uidNumber: 12164 cn: Marc WERLY shadowInactive: -1 loginShell: /bin/bash shadowMin: 0 gidNumber: 100 shadowMax: 999999 gecos: mwerly homeDirectory: /home/mwerly sn: Marc shadowWarning: 99 1 it seems unable to authenticate with pop3-login: Login: mwerly [192.168.1.7] Aug 31 17:47:35 dental01 pop3: I/O leak: 0x8050d70 (0) Aug 31 17:47:35 dental01 pop3: I/O leak: 0x8084db0 (1) :o( 2 if I comment user_global_uid = 1000 user_global_gid = 1000 dovecot can't get uidnumber from ldap, in spite of its presence in ldap entry :'o( 3 postfix seem able to send messages to local virtual users(thanks of ldap/pam ldap authentification). the /var/mail/%u files are up2dated by postfix, but I simply can't get any mails with thoses dovcot logs: pop3-login: Login: mwerly [192.168.1.7] Aug 31 17:47:35 dental01 pop3: I/O leak: 0x8050d70 (0) Aug 31 17:47:35 dental01 pop3: I/O leak: 0x8084db0 (1) :`o[[[[[ please help

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[Dovecot] 0.99.11-rc2
by Timo Sirainen 02 Sep '04

02 Sep '04

http://dovecot.org/rc/ Changes since rc1: + Create PID file in /var/run/dovecot/master.pid - THREAD and SORT commands crashed with some mails If nothing new comes up, this is the final release tomorrow.

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Re: [Dovecot] File isn't in mbox format: /var/mail/user1
by Timo Sirainen 02 Sep '04

02 Sep '04

On 2.9.2004, at 09:09, Zoong Pham wrote: > Sep 1 11:12:31 onion pop3(tekciz): File isn't in mbox format: > /var/mail/user1 .. > Does anyone know what's happening? Dovecot probably has left an extra empty line at the beginning of the mbox file and after that it treats it as invalid. This happens sometimes with 0.99 code, 1.0-tests have much better mbox implementation.

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[Dovecot] corrupted .imap.index.log
by Fredrick Backman 02 Sep '04

02 Sep '04

Hi, I'm using version 0.99.10.8 on debian 2.4.26 and am getting this problem, can someone please shed some light over this? Aug 31 13:58:58 xxx imap(someone): file_wait_lock() failed with modify log file /var/mail/someone_new/Maildir/.INBOX/.imap.index.log: Resource temporarily unavailable and then: Aug 31 14:00:58 xxx imap(someone): Couldn't lock modify log file /var/mail/someone_new/Maildir/.INBOX/.imap.index.log and finally: Aug 31 14:26:35 xxx imap(someone): Corrupted modify log file /var/mail/someone_new/Maildir/.INBOX/.imap.index.log: used_file_size larger than real file size (4096 vs 2576) MTA is qmail 1.03 (with procmail v3.22) TIA, Fredrick -- Systemadministration EsPresto AG ----------------------------------------------------------------- backman(a)espresto.com Breite Str. 30-31 Tel/Fax: +49.30.90 226.750/.760 10178 Berlin/Germany

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[Dovecot] Assertion failed in buffer.c
by news.gmane.org 02 Sep '04

02 Sep '04

dovecot-0.99.10.5-0.FC2 I have had a report from a user that when accessing their inbox, the connection is suddenly dropped. Dovecot reports the following:- imap(user): file buffer.c: line 357 (buffer_set_start_pos): assertion failed: (abs_pos <= I_MIN(buf->used, buf->limit)) From searching the list, I found an indication that it is a problem with an individual message. As the user has rather a large number of emails, how can I isolate the message? Regards -- Chris Hills IT Services North East Worcestershire College

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RE:UPDATE: [Dovecot] File isn't in mbox format: /var/mail/user1
by Zoong Pham 02 Sep '04

02 Sep '04

> -----Original Message----- > From: dovecot-bounces(a)dovecot.org > [mailto:dovecot-bounces@dovecot.org]On > Behalf Of Zoong Pham > Sent: Thursday, 2 September 2004 4:09 PM > To: dovecot(a)dovecot.org > Subject: [Dovecot] File isn't in mbox format: /var/mail/user1 > > I lately see lots of message like this in my maillog: > > Sep 1 11:12:31 onion pop3-login: Login: user1 [203.11.35.29] > Sep 1 11:12:31 onion pop3(tekciz): File isn't in mbox > format: /var/mail/user1 > Sep 1 11:12:31 onion pop3(tekciz): File isn't in mbox > format: /var/mail/user1 Oop, I changed the login name from tekciz to user1 to protect the client's privacy but I missed the above lines :-( > Sep 1 11:12:31 onion pop3: I/O leak: 0x1c00881c (0) > Sep 1 11:12:31 onion pop3: I/O leak: 0x1c034f1c (1) > Sep 1 11:12:31 onion pop3: Timeout leak: 0x1c01a3e8 > > I have: > - OS: OpenBSD-3.5 with all the patches. > - Sendmail 8.12.11 > - dovecot-0.99.10.9 The POP3 client is MDaemon (http://www.altn.com/) Thanks ___________________________________________________________________________________ THIS EMAIL IS CONFIDENTIAL. If you have received this email in error please forward it to information(a)mercy.com.au. It may contain personal information and it is intended for the addressee only. If you receive this email in error you must not use, copy forward, print or otherwise disseminate any information it contains. Mercy Health & Aged Care is a Catholic community benefit organisation. Each year one in twenty Victorian families are touched by the services we provide. Visit www.mercy.com.au for more information. Our services include: * Mercy Hospital for Women - East Melbourne (moving to Heidelberg in 2005) * Werribee Mercy Hospital - Werribee * Mount Alvernia Mercy Hospital - Bendigo * Mercy Hospice - Western suburbs * O'Connell Family Centre - Canterbury * Corporate Office - Richmond * Rice Village - Geelong * Tullamore Mercy - Montrose * Eventide Mercy - Colac * Bethlehem Home for the Aged - Bendigo *

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[Dovecot] File isn't in mbox format: /var/mail/user1
by Zoong Pham 02 Sep '04

02 Sep '04

I lately see lots of message like this in my maillog: Sep 1 11:12:31 onion pop3-login: Login: user1 [203.11.35.29] Sep 1 11:12:31 onion pop3(tekciz): File isn't in mbox format: /var/mail/user1 Sep 1 11:12:31 onion pop3(tekciz): File isn't in mbox format: /var/mail/user1 Sep 1 11:12:31 onion pop3: I/O leak: 0x1c00881c (0) Sep 1 11:12:31 onion pop3: I/O leak: 0x1c034f1c (1) Sep 1 11:12:31 onion pop3: Timeout leak: 0x1c01a3e8 I have: - OS: OpenBSD-3.5 with all the patches. - Sendmail 8.12.11 - dovecot-0.99.10.9 (configured like this: ./configure --without-pam --without-shadow --without-vpopmail --localstatedir=/var --with-ssldir=/etc/ssl --with-ssl=openssl Does anyone know what's happening? Thanks, Zoong PHAM ___________________________________________________________________________________ THIS EMAIL IS CONFIDENTIAL. If you have received this email in error please forward it to information(a)mercy.com.au. It may contain personal information and it is intended for the addressee only. If you receive this email in error you must not use, copy forward, print or otherwise disseminate any information it contains. Mercy Health & Aged Care is a Catholic community benefit organisation. Each year one in twenty Victorian families are touched by the services we provide. Visit www.mercy.com.au for more information. Our services include: * Mercy Hospital for Women - East Melbourne (moving to Heidelberg in 2005) * Werribee Mercy Hospital - Werribee * Mount Alvernia Mercy Hospital - Bendigo * Mercy Hospice - Western suburbs * O'Connell Family Centre - Canterbury * Corporate Office - Richmond * Rice Village - Geelong * Tullamore Mercy - Montrose * Eventide Mercy - Colac * Bethlehem Home for the Aged - Bendigo *

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[Dovecot] sig11 with test36/37 on some emails
by Peter Hessler 01 Sep '04

01 Sep '04

Sometimes I'll get an email from a luser which will cause the POP3 daemon to sig11. The email "appears" to be legal. The sig11s only happen on specific emails, and once I remove the emails from the server, the rest can be downloaded. I gzipped the email, and its at http://theapt.org/bogusemail.gz. While this example is international spam, the sig11s happen with real emails too. -- Entropy isn't what it used to be.

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[Dovecot] Strange behavior
by DR 01 Sep '04

01 Sep '04

Hi, I'm using dovecot under fedora core 2. Nearly everything seems to work. Dovecot was easily to configure and is a really smart program. BUT ... I figured out a problem. Whenever I fetch my mails (pop3s) using Outlook, TheBat or Pegasus, the mails on the server will not be marked as read. Sometimes I don't have a nice GUI mail client, than I use pine (I love it, but I won't feed the trolls ;-)). All messages, which I have already received are marked as new in pine or my webinterface squirrelmail. It seems, that dovecot doesn't mark the messages as read after fetching them. There are no strange entries in the logs, nothing which seems to be mysterious. Can anyone help me? This problem teases me. Cheers, DuRu

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[Dovecot] starting/stopping Dovecot
by Tom Metro 31 Aug '04

31 Aug '04

http://www.dovecot.org/doc/INSTALL > Once everything is configured, there's two ways to start Dovecot: > > 1) Run "dovecot" binary which does everything. > > 2) Start it via inetd or similiar by executing "imap-login" or "pop3-login" > binaries. If you're listening in SSL port, add --ssl parameter. What are the pros and cons of using 'dovecot' vs. inetd. This may seem silly, but I noticed that there isn't any documentation saying what is the proper way to kill Dovecot. I assume it is to kill the 'dovecot' process. This is indirectly addressed in the Wiki: 6. Why can't I change the log location? http://wiki.dovecot.org/moin.cgi/QuestionsAndAnswers#head-c9650f53dd4f7ca2b… though the first few examples refer to <pid> without identifying the pid of what. Maybe adding a "How do I start Dovecot?" and "How do I stop Dovecot?" as the first two items on that page would be a good idea, and then the log file question and "7.1 Dovecot isn't running." and "8. Why doesn't Dovecot listen on localhost (127.0.0.1)?" could refer to those. (If this sounds reasonable, I'll update the Wiki.) Any plans to support a /var/run/dovecot/pid file or similar? What are your thoughts on including an init.d script in the distribution. I know some of the binary distributions will have platform-specific scripts included, but it might be good to include a generic one for those who build from source. -Tom

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[Dovecot] 0.99.11 release candidate
by Timo Sirainen 31 Aug '04

31 Aug '04

http://dovecot.org/rc/ So, we're back into 3 digit version numbers, 0.99.10.10 would have looked too ugly. Originally I was planning on making 0.99.10.x series only for a few months and leave 0.99.11 for the larger changes, but 1.0- tests are now used for that. Version numbering is difficult. So, assuming there are no problems found from this RC, I'll release 0.99.11 tomorrow. Changes are: + 127.* and ::1 IP addresses are treated as secured with disable_plaintext_auth = yes + auth_debug setting for extra authentication debugging + Some documentation and error message updates - If APPENDed mail ended with CR character, Dovecot aborted the saving - Output streams sometimes sent data duplicated and lost part of it. This could have caused various strange problems, but looks like in practise it rarely caused real problems.

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[Dovecot] User Auth problems
by Nikolaus Gerstmayr 31 Aug '04

31 Aug '04

Hi ! Problem: Auth doesn't work, can't figure out why :( More precisely: setup: dovecot 0.99.10.9 pop3 only Userdb + Passwd via passwd-file. Anything plaintext. (communication client server, passwords in passwd-file, well, for first tests non public server... if I get it working, I'll try better ways - of course) non standard parts of my config: protocols = pop3 ssl_disable = yes auth = default auth_mechanisms = plain auth_userdb = passwd-file /passwd_file auth_passdb = passwd-file /passwd_file auth_verbose = yes /passwd_file content: nick#sales.blabla:{PLAIN}test:500:500::::/mail/nick well, syntax is not 100% obvious from docu, but that's the way I understood it. (examples would be nice) That's how I understood semantics: If client sends user nick#sales.blabla and password test, dovecot accesses /mail/nick (maildir) with UID 500, GID 500 ???? problem: Auth fails. In logfiles I get this: dovecot-auth: Aug 30 22:36:20 Info: mech-plain(nick#sales.blabla): invalid username. (So no typo in mail client account setup or anytihng like this). Of course clients says auth fialed as well. Well, nick#sales.blabla is not a user on the test machine, but that's on purpose. It IS in /passwd-file :/ Anyone any idea ? Thx i.A for help !

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[Dovecot] [PATCH] [RFC] epoll based ioloop handler (now with patch)
by Andrey Panin 30 Aug '04

30 Aug '04

Sorry, I forgot to attach patch to previous mail. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

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[Dovecot] [PATCH] NTLM fixes
by Andrey Panin 30 Aug '04

30 Aug '04

Hello, attached patch contains small NTLM fixes: - open code ntlmssp_des_encrypt_triad() function; - add two missing safe_memset(). It's not safe to leave NTLM hashes on the stack, because they are plain password equivalents. Please consider applying. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

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[Dovecot] Problems with registering new emails - imap/jfs/maildir
by Trond Eivind Glomsrød 29 Aug '04

29 Aug '04

After changing a mailserver from using mbox/ext3 (RHL9) to Maildir/jfs (RHEL 3), dovecot 0.99.10 no longer reports new email even if asked... I have to restart the mail client and do a fresh login to notice new email. This happens with multiple mail clients on multiple platforms, and didn't happen before the conversion... any suggestions on workarounds? -- Trond Eivind Glomsrød Senior Software Engineer Scali - www.scali.com High Performance Clustering

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[Dovecot] permission denied?
by Alex 29 Aug '04

29 Aug '04

I configured dovecot with Postfix with mysql Now I have directory /home/mail/virtual User/group postfix.postfix I added one domain, and one user. I login is successful but it gets interupted because of this. pop3(xx(a)private-projects.net): Aug 11 00:48:53 Error: lstat(/home/mail/virtual/private-projects.net/xx@private-projects.net/cur) failed: Permission denied pop3(xx(a)private-projects.net): Aug 11 00:48:53 Error: lstat(/home/mail/virtual/private-projects.net/xx@private-projects.net/cur) failed: Permission denied pop3(xx(a)private-projects.net): Aug 11 00:48:53 Warning: I/O leak: 0x8050cc0 (0) pop3(xx(a)private-projects.net): Aug 11 00:48:53 Warning: I/O leak: 0x8084e90 (1) [root@octalys dovecot]# ls -la /home/mail/virtual/private-projects.net/xx\(a)private-projects.net/cur/ total 8 drwxrw---- 2 postfix postfix 4096 Aug 2 21:47 . drwxrw---- 5 postfix postfix 4096 Aug 2 21:47 .. [root@octalys dovecot]# I added dovecot user to postfix group. I even tried chmod -R 777 * in virtual. It doesn't work. Whats the problem ?

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[Dovecot] MySQL passdb, auth_verbose, and documentation
by tmetro+dovecot＠vl.com 28 Aug '04

28 Aug '04

I've been playing around with Dovecot for the past few months for testing (on a Debian 3.0 system), and initially it was easy to setup and worked well. Recently I upgraded to 0.99.10.9, and when I rebuilt it I enabled MySQL and SSL. The first problem I ran into was upon startup it complained that there was no certificate, which makes sense, except that I hadn't enabled imaps in the config file. It would make more sense not to require SSL support files if SSL isn't being used. But this is minor. I encountered more serious problems when I tried migrating from real user accounts to virtual accounts via MySQL. Has anyone written a howto on setting up Dovecot with MySQL? (Just pointing to dovecot-mysql.conf leaves out a lot.) If not, I'll volunteer to write something up. I set up dovecot-mysql.conf as I thought it should be, created a database, added a record with a digest-md5 password, and changed some dovecot.conf directives as follows: default_mail_env = maildir:/var/mail/%d/%n/ auth_mechanisms = digest-md5 auth_default_realm = example.com auth_userdb = static uid=5000 gid=5000 home=/var/mail/%d/%n/ auth_passdb = mysql /etc/dovecot-mysql.conf For the static auth_userdb I wasn't quite sure what to put after home= as I wasn't really defining a home directory location. I initially tried making it identical to default_mail_env, but later learned that it clearly didn't like the "maildir:" prefix. Some questions the documentation left unanswered: Is home= required if default_mail_env will suffice for virtual users? Can mail= be used instead, as implied by the database documentation? Practically speaking, is there any difference between the two in the case of virtual user accounts? I tried to access Dovecot from a mail client and repeatedly received a login failure. Unfortunately, this is typical of what I saw in the log file: Aug 8 03:53:50 lex dovecot: Dovecot starting up Aug 8 03:53:52 lex dovecot-auth: MySQL: connected to localhost Aug 8 03:55:13 lex imap-login: Disconnected: Inactivity [192.168.0.200] I enabled auth_verbose: auth_verbose = yes and checked my syslog.conf to make sure all priorities were being logged: mail.* /var/log/syslog/mail.log but still no additional verbosity. How should things look different when auth_verbose is enabled? Checking MySQL's log I could see that Dovecot was successfully connecting to the database server, but never executing any queries. I was going to next turn on logging of all IMAP traffic, but noticed the Wiki suggested trying a manual session, which I did: % telnet localhost imap * OK dovecot ready. 1 LOGIN tmetro(a)example.com password 1 NO Login failed: Unsupported authentication mechanism Isn't this the kind of thing that should appear in the log when auth_verbose is enabled? That seemed odd, as 'digest-md5' is mentioned right in dovecot.conf as a valid choice. In retrospect, I gather what the message above is trying to tell me is that Dovecot wasn't configured to accept a 'plain' authentication, which is apparently what I was using in my manual session. It would be nice if the error message could express that a bit better. I did have some suspicion that it might be the that plain text authentication was being prevented, as at that point I didn't know what auth_mechanisms applied to, but I looked at dovecot.conf and found disable_plaintext_auth = no, which seemed to imply that plain text at the IMAP protocol level should have been permitted. Might it be clearer if that attribute was incorporated into the auth_mechanisms settings or at least moved into the auth section? I switched it to 'plain-md5', as mentioned in auth.txt, and tried again. That resulted in: Aug 8 21:11:53 lex dovecot-auth: Unknown authentication mechanism 'plain-md5' Aug 8 21:11:53 lex dovecot: Auth process died too early - shutting down Aug 8 21:11:53 lex dovecot: child 10293 (auth) returned error 89 Aug 8 21:11:53 lex imap-login: fd_send(-1) failed: Broken pipe That got me wondering whether there were two different areas where authentication terms apply - one being the password exchange in the IMAP protocol, and the other being how the password is stored on the server - yet the discussion of the two seems to be mixed together in the documentation. I tried switching to: auth_mechanisms = plain and finally got something more expected: Aug 8 21:20:44 lex dovecot-auth: mysql(tmetro(a)example.com): Password mismatch I tried putting the password into the database unencrypted, but that didn't work (probably because of my default_pass_scheme setting?). Generating a PLAIN-MD5 per auth.txt finally worked. This leads to some questions: auth_mechanisms doesn't seem to be describing the way in which the password is stored, so what does it describe? In dovecot-mysql.conf I had: default_pass_scheme = DIGEST-MD5 and didn't change it. What purpose does it serve? Is it only to identify the encryption used when there isn't a {SCHEME} tag present? For DIGEST-MD5, which encrypts "user:realm:pass", does realm include the @? Does user include @realm? I assumed no in both cases, yet it didn't work. In other matters...during one of my login attempts I got: * OK dovecot ready. 1 LOGIN tmetro(a)example.com password 1 OK Logged in. Connection closed by foreign host. The abrupt disconnect after an apparently successful login seemed odd. The log file showed: Aug 8 21:23:47 lex dovecot: chdir(maildir:/var/mail/example.com/tmetro/) failed with uid 5000: Permission denied Aug 8 21:23:47 lex dovecot: child 10315 (imap) returned error 89 which is the problem I discussed above, but is it reasonable for Dovecot to disconnect the IMAP socket and not send an error message to the client? At the end of the dovecot-example.conf is: #auth = digest_md5 #auth_methods = digest-md5 #auth_realms = #auth_userdb = passwd-file /etc/passwd.imap #auth_passdb = passwd-file /etc/passwd.imap #auth_user = imapauth #auth_chroot = Is auth_methods an alias for auth_mechanisms? Aside from the insufficient detail in the log, most of the difficulty I encountered could be avoided with better documentation and comments in the config files. I'd be happy to submit clarified comments once I get some answers to the above questions and confirm my understanding of how things work. -Tom

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[Dovecot] Authentication and Startup/Shutdown error.
by Andrew Lietzow 28 Aug '04

28 Aug '04

Hello and ... help! I am using Redhat FC2. I was looking for a simple POP3 compatible application package that would allow growth into secure mailboxes, and it looks like dovecot can fill the bill, and then some. I am a newbie. I scanned the Wiki but am as confused by it as I am by my problems. Fortunately for me, I don't need 7 different authentication schemes; I just need something simple that works with Thunderbird and Outlook Express. Is there a HOW-TO around that shows simple pop3 setup on Linux? #1) I had the pop3-login working for a bit, but now it has stopping starting up. When I attempt a <./dovecot stop>, I get a message that the stop has [FAILED]. I believe this is because it is leaving a lock in the /var/lock/subsys directory. I delete that file and try again, same problem. The system starts okay, but there are no longer any pop3-login processes being started up. <ps -elf | egrep pop3*> returns nothing but the grep process. #2) I need a simple method to access email. Nothing fancy as I only have a couple of users. Terrorists woud be wasting their time to monkey with my server. In the dovecot.conf file, here are a few of my settings. pop3_executable = /usr/libexec/dovecot/pop3 pop3_process_size = 256 auth = passwd auth_mechanisms = plain auth_realms = auth_default_realm = auth_userdb = passwd: /etc/passwd auth_passdb = passwd: /etc/passwd auth_executable = /usr/libexec/dovecot/dovecot-auth auth_process_size = 256 auth_user = root auth_count = 2 Any help would be greatly appreciated, of course. I'll keep scanning the web site while I am at your mercy. TIA, Andrew L. in Iowa _____________________________________________________________________ Get your own family web site at www.MyFamily.com!

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[Dovecot] 1.0-test37
by Timo Sirainen 28 Aug '04

28 Aug '04

http://dovecot.org/test/ - Added mbox_dirty_syncs setting, defaulting to yes. This means that while mbox is opened and new mails come, it only reads the new mails instead of the whole mbox. Then there's several checks that make sure this is safe to do and if something doesn't look right it fallbacks to syncing the whole mbox again. - dovecot-auth was leaking memory (not same bug as with 0.99/ldap) - Some other fixes

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[Dovecot] 1.0-test36
by Timo Sirainen 28 Aug '04

28 Aug '04

http://dovecot.org/test/ Fixes mostly. Seems to be working quite well with me nowadays with mboxes. If you see any crashes or other problems please report.

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