- dovecot - dovecot.org

[Dovecot] Moving email from a folder to another using IMAP is very slow (sometimes)
by Stefano Scalise 26 Sep '07

26 Sep '07

Hi to all, I am using the new beta release 1.1. I am experiencing, after the upgrade to the 1.1beta some problems regarding the following scenario: I am conneted with Outlook to dovecot server using IMAP. I have many folders and I want to move an email from a folder to another using drag and drop. I see that when I move the email, the IMAP process goes to 90-95% for about 5 seconds and after, the mail is finally moved. I noticed that this operation sometimes (20% about) is again fast. There is no problem of overload of the server because this mail server, at the moment, manage just 1 email address. Before the upgrade to 1.1beta, this operation was very very fast. Is there a way to try to debug the IMAP process for understanding what is happening? Thank you for your help. Stefano.

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[Dovecot] strange fsync errors
by Hermann wacker 26 Sep '07

26 Sep '07

Hi all, I'm using dovecot since a few months and it works great. But a few days ago some coworkers mentioned that they got errormessages in their Mailapp. I searched in the logfiles and found this: Sep 14 12:07:35 Mailserv dovecot: IMAP(eckhard-ma-domain-com): fsync(/home/eckhard-ma-domain-com/mails/.INBOX.0002-Druckangebote von Druckereien.0002-schmerk zwei_E-Mailverkehr/tmp/1189764455.P15962Q0M486676.Mailserv) failed: Input/output error Sep 14 12:07:46 Mailserv dovecot: IMAP(eckhard-ma-domain-com): fsync(/home/eckhard-ma-domain-com/mails/.INBOX.0002-Druckangebote von Druckereien.0002-schmerk zwei_E-Mailverkehr/tmp/1189764466.P15962Q1.Mailserv) failed: Input/output error Mailserv:~# cat /var/log/mail.log.* | grep fsync Sep 20 16:08:40 Mailserv dovecot: IMAP(aicher-fre-domain-com): fsync(/home/aicher-fre-domain-com/mails/.Sent/tmp/1190297319.P5290Q0M979653.Mailserv) failed: Input/output error Sep 20 16:08:48 Mailserv dovecot: IMAP(aicher-fre-domain-com): fsync(/home/aicher-fre-domain-com/mails/.Sent/tmp/1190297328.P5290Q1.Mailserv) failed: Input/output error Sep 20 16:18:24 Mailserv dovecot: IMAP(aicher-fre-domain-com): fsync(/home/aicher-fre-domain-com/mails/.Sent/tmp/1190297904.P5290Q3.Mailserv) failed: Input/output error Sep 20 16:23:20 Mailserv dovecot: IMAP(aicher-fre-domain-com): fsync(/home/aicher-fre-domain-com/mails/.Sent/tmp/1190298200.P5290Q6.Mailserv) failed: Input/output error The /home/ dirs are at a simple RAID 1 System, ext2 filesystem. No NFS or other networkstuff. I'm on a Debian Etch with dovecot 1.0.rc15-2 Any hints what this can be? Thank you in advance Hermann Wacker

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[Dovecot] deliver net_connect auth-master failed: Permission denied
by Rich Winkel 26 Sep '07

26 Sep '07

Ok, I've ALMOST got this working ... I can run deliver as a user, but when I try using it as the default delivery agent from sendmail, I get deliver(userid): net_connect(/var/run/dovecot/auth-master) failed: Permission denied Does deliver run as root, as the recipient's ID, sendmail's ID or sendmail's GID? (I'm running freebsd) Or am I totally clueless ?? Here is dovecot -n: # 1.0.3: /usr/local/etc/dovecot.conf base_dir: /var/run/dovecot/ listen: localhost:996 ssl_disable: yes login_dir: /var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login login_greeting_capability: yes first_valid_uid: 100 mail_extra_groups: mail mail_location: mbox:~/mail:INBOX=/var/mail/%u:INDEX=/var/spool/dovecot_indexes/%u lock_method: flock mbox_read_locks: flock mbox_write_locks: flock auth default: passdb: driver: pam userdb: driver: passwd socket: type: listen client: path: /var/run/dovecot/auth-client mode: 432 master: path: /var/run/dovecot/auth-master mode: 432 Thanks!!!!! Rich

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[Dovecot] Password auth with Postfixadmin & MySQL
by James Dehnert 25 Sep '07

25 Sep '07

I am trying to get Postfix, Dovecot, Postfixadmin, and MySQP all working together. I'm using 1.0.5 atm. I've hit a point where I can't seem top get dovecot to auth to the MySQL password database It seems to see the user OK, but I can't seem to get a password match. MySQL has password stored as MD5, as per Postfixadmin. When I add plain-md5 to the auth mechanisms dovecot seems to use plain and fails. From dovecot.conf.. # Space separated list of wanted authentication mechanisms: # plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi # NOTE: See also disable_plaintext_auth setting. mechanisms = cram-md5 plain login # dovecot log file... dovecot: Sep 25 11:17:30 Info: pop3-login: Login: user=<jdehnert(a)dehnert.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured dovecot: Sep 25 11:19:54 Info: auth(default): client in: AUTH 1 PLAIN service=IMAP secured lip=127.0.0.1 rip=127.0.0.1 resp=<hidden> dovecot: Sep 25 11:19:54 Info: auth-worker(default): sql (jdehnert(a)dehnert.com,127.0.0.1) query: SELECT username as user, password, concat('/var/vmail/',domain,'/',maildir) as userdb_home, concat('maildir:/var/vmail/',domain,'/',maildir) as userdb_mail, 101 as userdb_uid, 101 as userdb_gid FROM mailbox WHERE username = 'jdehnert(a)dehnert.com' AND active = '1' dovecot: Sep 25 11:19:54 Info: auth-worker(default): sql (jdehnert(a)dehnert.com,127.0.0.1) Password mismatch dovecot: Sep 25 11:19:54 Info: auth(default): client out: FAIL 1 user=jdehnert(a)dehnert.com dovecot: Sep 25 11:22:54 Info: imap-login: Disconnected: Inactivity: user=<jdehnert(a)dehnert.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured and the sql script thats called is has just minor tweaks... driver = mysql connect = host=localhost dbname=postfix user=postfix password=postfix user_query = SELECT concat('/var/vmail/',domain,'/',maildir) as home, concat('maildir:/var/vmail/',domain,'/',maildir) \ as mail, 101 AS uid, 101 AS gid, concat('maildir:storage=', quota) AS quota FROM mailbox WHERE username = '%u' AND \ active = '1' password_query = SELECT username as user, password, concat('/var/ vmail/',domain,'/',maildir) as \ userdb_home, concat('maildir:/var/vmail/',domain,'/',maildir) as userdb_mail, 101 as userdb_uid, \ 101 as userdb_gid FROM mailbox WHERE username = '%u' AND active = '1'

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[Dovecot] Performance on BSD
by bugtraq 25 Sep '07

25 Sep '07

Hi list, I want to test performance of dovecot-1.0.5 on OpenBSD and FreeBSD. I want to implement a small pop3s/imaps server with ~3000 users. I had tested dovecot-1.0.5 with vpopmail+mysql but I don't know if the performance is ok. Anybody have test with imaptest? OpenBSD 4.1 amd64 SMP dovecot-1.0.5 vpopmail-5.4.22 ./imaptest seed=1 secs=60 Totals: Logi List Stat Sele Fetc Fet2 Stor Dele Expu Appe Logo 100% 50% 50% 100% 100% 100% 50% 100% 100% 100% 100% 30% 5% 1322 672 675 1322 1320 1893 673 433 1316 574 2630 FreeBSD 6.2 amd64 SMP dovecot-1.0.5 vpopmail-5.4.22 ./imaptest seed=1 secs=60 Totals: Logi List Stat Sele Fetc Fet2 Stor Dele Expu Appe Logo 100% 50% 50% 100% 100% 100% 50% 100% 100% 100% 100% 30% 5% 2250 1119 1127 2249 2248 3267 1113 688 2247 857 4494 Thanks in advance,.

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[Dovecot] user_global_uid and user_global_gid
by Stefano Scalise 25 Sep '07

25 Sep '07

Hi to all, I am using the new beta release 1.1. I see that parameters user_global_uid and user_global_gid are no more used in dovecot-ldap.conf. That means that, as I use LDAP as backend I am obliged to se t these two fileds in LDAP for each user even if they are always the same, as I use virtual domains. I see that I can set the in dovecot.conf the parameters mail_uid and mail_gid, but even if I set these parameters, when I do the query in LDAP (for retrieving other useful parameters) I have the error: userdb(<email address>) didn't return uid but... I don't want to take uid parameter from LDAP, I want to set it globally but I still want to do an LDAP query. Is there a way to do this in the new evrsion or I cannot do anymore this? Thank you, Stefano.

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[Dovecot] v1.1.beta1 released
by Timo Sirainen 25 Sep '07

25 Sep '07

http://dovecot.org/releases/1.1/beta/dovecot-1.1.beta1.tar.gz http://dovecot.org/releases/1.1/beta/dovecot-1.1.beta1.tar.gz.sig Alpha6 seemed to finally work quite well, so I think it's time for a feature freeze (except for dbox changes). I started a new wiki page to list incompatibilities between v1.0 and v1.1: http://wiki.dovecot.org/Upgrading/1.1 Fixes since alpha6: - deliver + maildir caused "UID 0 in transaction log" errors - deliver + maildir no longer blocks if dovecot-uidlist.lock file exists. The mail is simply delivered without updating uidlist or indexes. - Quota handling fixes, especially dict quota - etc.

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[Dovecot] pam session=yes with gssapi authentication
by Thomas Mueller 25 Sep '07

25 Sep '07

hi there I noticed the following behaviour with auth backend pam and "args session=yes *" configuration: - login with "plain": pam session gets opend - login with "gssapi" (kerberos): pam session isn't opend (-> no $HOME will be created) Is this a bug or just a limitation by GSSAPI (maybe gssapi works around PAM)? - Thomas Dovecot Versions seen this: - 1.0.rc15 (Debian 4.0 Etch) - 1.0.0 (Debian backports)

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Re: [Dovecot] Running a dovecot IMAPS server
by Timothy Murphy 25 Sep '07

25 Sep '07

On Sun 16 Sep 2007, Jos Vos wrote: > > Just to be clear what I am saying. > > Suppose you have a standard maildir setup on computer X, > > with directories ~/Maildir/inbox/[cur,new,tmp]/ , > > ~/Maildir/family/[cur,new,tmp]/ , etc. > > > > Suppose now you start dovecot IMAP on computer X. > > Then you will not be able to see the family folder on computer Y, > > running as an IMAP client, ie with an IMAP kmail account > > pointing to computer X. > > > > If I am right, you have to re-organise and re-name the folders on X > > if you want to see them on Y. > > And if you do this, you can no longer seem them on X with kmail. > > Dovecot has both mbox and Maildir format support. I find the statement that dovecot has maildir format support misleading. By maildir support, I mean that mail is contained in directories ~/Maildir/inbox/[cur,new,tmp], ~/Maildir/Family/[cur.new.tmp], ~/Maildir/Finance/[cur,new,tmp], etc. This is the setup created if one runs kmail as mail client, specifying that one is using maildir format, and using the GUI to create new folders Family, Finance, etc. As far as I can see, if you now set up an IMAP server using dovecot on this machine, setting mail_location = maildir:~/Maildir/ in /etc/dovecot.conf then the email in the folders Family, Finance, etc will not be seen by an IMAP client. > But as soon as you have an e-mail klant using a non-supported mailbox > format *or* that is storing mail folders in a supported format but in > a non-standard place, tour theory applies, yes. What is the "standard" place for mail folders? > See also <http://wiki.dovecot.org/> for more info about this all. I've studied that wiki, and not found clear information on this point. To clarify my question, suppose one has email organised in server X as described above, in directories ~/Maildir/Family/[cur.new.tmp/ , etc. And now suppose one wants to access this email from laptop Y. How exactly does one have to change the setup on machine X? And what does one set mail_location to? It seems to me that this is an issue likely to be faced by anyone wanting to run a small home network. reading email on various machines, and wanting this email to be kept "in sync". Maybe dovecot is not a suitable program for this purpose?

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[Dovecot] 1.1 Beta 1 Works!
by Luciano Mannucci 25 Sep '07

25 Sep '07

Wow! I'm running 1.1 Beta 1 on OpenSuSE linux 10.2. It seems not bad at all. The only thing I've not quite well understood is this message, that pops up when I start dovecot: Warning: fd limit 1024 is lower than what Dovecot can use under full load (more than 1536). Either grow the limit or change login_max_processes_count and max_mail_processes settings Where does dovecot take this 1024 fd limit? My machine-wise limit is some orders of magnitude bigger, af far as I can tell by reading /proc/sys/fs/file-max... luciano. -- /"\ /Via A. Salaino, 7 - 20144 Milano (Italy) \ / ASCII RIBBON CAMPAIGN / PHONE : +39 2 485781 FAX: +39 2 48578250 X AGAINST HTML MAIL / E-MAIL: posthamster(a)sublink.sublink.ORG / \ AND POSTINGS / WWW: http://www.mannucci.ORG/

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