June 2008 - dovecot - dovecot.org

[Dovecot] Limiting SSL (external) access to certain users ?
by Jakob Curdes 25 Jun '08

25 Jun '08

I am looking for a way to limit outside access to the IMAP server to certain users only. Basic idea is to use two userdbs, one for SSL connections and one "internal" with most users in it. Is there a way to do this without running two dovecot configurations? Thanks for hints, Jakob

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[Dovecot] Multip
by Grandy Fu 25 Jun '08

25 Jun '08

-- Regards, Grandy (CNE, MCSE, CCNA, SCSA,SCNA, CISSP) ************************************ * Technical Support Team * Dept. of Computing, HKPU * e-mail: cswfu(a)comp.polyu.edu.hk * ROOM: QT403, HKPU * TEL: (852)2766-7306 * FAX: (852)2170-0145 ************************************

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[Dovecot] Ubuntu packages [Was: Re: v1.1.1 released]
by Wolfram Schlich 24 Jun '08

24 Jun '08

Has anyone already built 1.1.1 packages for Ubuntu 8.04?! Thanks, Wolfram

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[Dovecot] 1 week after full migration to 1.1v
by Raphael Bittencourt S. Costa 24 Jun '08

24 Jun '08

Ehlo all, I've been working on a migration of about 240K users from one server with qmail, courier imap, maildrop and ldap to postfix, dovecot, lda +sieve. Before the migration the server and the storage were always on high load. Before migration: Storage IOPs = 4600 Read average = 2800 Write average = 1800 Storage CPU (Raid5) Crl0 = 50% Crl1 = 50% Server Load = 120 %user = 35 %system = 60 %iowait = 5 %idle = 0 After migration: Storage IOPs = 3000 Read average = 1200 Write average = 1800 Storage CPU (Raid5) Crl0 = 40% Crl1 = 40% Server Load = 25 %user = 10 %system = 27 %iowait = 40 %idle = 23 And now the server responds so quickly to any imap command. Dovecot is now the default imap/pop server here, Thanks Timo. []s, Raphael Costa

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[Dovecot] Maildir and Invalid data in file
by Patryk 23 Jun '08

23 Jun '08

Hello, I'm using dovecot version 1.0.13 on reiserfs on hardware RAID-0, but I'm getting the following error in the logs every time one user tries to access his old mails in the .Sent directory: dovecot: 2008-06-23 15:09:46 Error: IMAP(marek.chajecki): Invalid data in file /var/mail/Maildir/marek.chajecki/.Sent/dovecot-uidlist As a result he fails to get access to the emails in this folder. I've googled a bit and read that deleting the uidlist makes dovecot recreate it, but after some time the same thing happens. It's a new hard drive, so I don't think this is a hard drive fault. Some additional info: this server is being used by about 200 users who get about 100 emails daily each one of them. Config: root@warsaw Maildir # dovecot -n # 1.0.13: /etc/dovecot/dovecot.conf log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot.log log_timestamp: %Y-%m-%d %H:%M:%S ssl_listen: * login_dir: /var/run/dovecot/login login_executable: /usr/libexec/dovecot/imap-login login_process_per_connection: no login_processes_count: 15 login_max_processes_count: 512 max_mail_processes: 4096 mail_privileged_group: mail mail_location: maildir:/var/mail/Maildir/%u maildir_copy_with_hardlinks: yes auth default: worker_max_count: 100 passdb: driver: pam args: cache_key=%u dovecot userdb: driver: passwd Any help will be appreciated! -- Regards, Patryk Rzadzinski

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[Dovecot] v1.0.13: maildirfolder not being created
by Eduardo M KALINOWSKI 23 Jun '08

23 Jun '08

Hi, I'm using version 1.0.13 of dovecot. I know it's somewhat dated, but that's the latest that Debian etch offers, and I would like to avoid compiling by myself if possible. dovecot is not creating the 'maildirfolder' in folders that are created via IMAP. Looking at the NEWS file, this was implemented in v1.0.rc7, so my version should have that working already. Is there anything else that needs to be done? Here's dovecot -n: # 1.0.13: /etc/dovecot/dovecot.conf log_path: /var/log/dovecot/main.log info_log_path: /var/log/dovecot/info.log log_timestamp: %Y-%m-%d %H:%M:%S ssl_cert_file: /etc/ssl/certs/server.pem ssl_key_file: /etc/ssl/private/server.pem login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login login_processes_count: 1 first_valid_uid: 100 mail_privileged_group: mail mail_location: maildir:/home/vmail/%d/%n/INBOX:INDEX=/home/vmail/%d/%n/dovecotidx mail_plugins: quota imap_quota auth default: mechanisms: plain login cram-md5 passdb: driver: passwd-file args: /home/vmail/%d/db/passwd passdb: driver: pam userdb: driver: static args: uid=104 gid=8 home=/home/vmail/%d/%n userdb: driver: passwd socket: type: listen client: path: /var/run/dovecot/auth-client mode: 438 plugin: quota: maildir:ignore=Trash -- I want the presidency so bad I can already taste the hors d'oeuvres. Eduardo M KALINOWSKI eduardo(a)kalinowski.com.br http://move.to/hpkb

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[Dovecot] Testing using namespaces
by Kyle Wheeler 23 Jun '08

23 Jun '08

Hey there, I'm interested in testing out using different storage formats for different folder hierarchies. I *think* this can be achieved using namespaces, but I'm not sure. For example, is it possible to, say, make all directories under INBOX.Archive be stored as mboxes, while everything else is stored as Maildirs? ~Kyle -- May your glass be ever full. May the roof over your head be always strong. May you be in heaven half an hour before the devil knows you're dead. -- Old Irish Toast

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[Dovecot] v1.0.15 released
by Timo Sirainen 22 Jun '08

22 Jun '08

http://dovecot.org/releases/1.0/dovecot-1.0.15.tar.gz http://dovecot.org/releases/1.0/dovecot-1.0.15.tar.gz.sig Still some last fixes to v1.0 series: - IMAP: SORT SUBJECT and THREAD didn't create base subjects correctly - Maildir: Expunged messages may have never gotten removed from dovecot-uidlist - mbox: Fixed a crash when adding a new X-IMAPbase: header with keywords. - Multiple "socket listen" auth blocks should have been possible, but Dovecot failed to start with a "With connect auth socket no other sockets can be used in same auth section" error.

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[Dovecot] Some crashes with 1.1.1
by Ralf Hildebrandt 22 Jun '08

22 Jun '08

I'm getting some cra shes with 1.1.1, but even with these start options: #!/bin/sh mkdir /var/core chmod 1777 /var/core echo /var/core/%p > /proc/sys/kernel/core_pattern ulimit -n 65535 ulimit -c unlimited /usr/local/sbin/dovecot -F I'm not getting any corefiles - why? It definitely used to work :) Jun 22 00:05:53 postamt dovecot: imap-login: *** glibc detected *** imap-login: free(): invalid pointer: 0x08cbd600 *** Jun 22 00:05:53 postamt dovecot: child 28879 (login) killed with signal 6 Jun 22 00:29:58 postamt dovecot: imap-login: *** glibc detected *** imap-login: malloc(): memory corruption: 0x09db3d88 *** Jun 22 00:29:58 postamt dovecot: child 28883 (login) killed with signal 6 Jun 22 00:47:07 postamt dovecot: imap-login: *** glibc detected *** imap-login: free(): invalid pointer: 0x090693d8 *** Jun 22 00:47:07 postamt dovecot: child 28876 (login) killed with signal 6 Jun 22 02:47:27 postamt dovecot: child 28885 (login) killed with signal 11 Jun 22 10:06:19 postamt dovecot: imap-login: *** glibc detected *** imap-login: malloc(): memory corruption: 0x091ee0a0 *** Jun 22 10:06:19 postamt dovecot: child 28887 (login) killed with signal 6 Jun 22 15:20:21 postamt dovecot: imap-login: *** glibc detected *** imap-login: malloc(): memory corruption: 0x09f84718 *** Jun 22 15:20:21 postamt dovecot: child 12530 (login) killed with signal 6 -- Ralf Hildebrandt (Ralf.Hildebrandt(a)charite.de) snickebo(a)charite.de Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 http://www.arschkrebs.de All the features in the world only do more to make me believe that Sendmail is hopelessly baroque, like some huge construction with chrome and tailfins sticking out in every direction -- like some monstrocity sculpted by people not the least bit interested in correctness.

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[Dovecot] no maildirsize file being created -dovecot v1.1
by Barry R Cisna 22 Jun '08

22 Jun '08

Hi Timo, Thanks for the info. You are exactly right ,,after I done some researching. by default the Fedora and El distros setups up mail folders in mbox format. My Bad. I was always under the impression default was maildir.I have used sendmail>Procmail>dovecot>squirrelmail for my new setup same as the last email server setup.I found that sendmail seems to be much less CPU intensive than postfix,or I did not have the config correctly as postfix was easy to setup but really choked our email server when a secretary " bulk emailed" everyone in the school district. I have learned a lot about this in the last couple days. I thought I knew a little bit about this,but obviously I didn't know a thing. I am going to go with the default dovecot rpm that ships with EL5 1.0.1x as this does what all I need to have done. My main concern is the check_quota plugin available for Squirrelmail works,and with the dirsize quota directive put into dovecot.conf this is working very slick, and appears to be reporting very accurately.Now hopefully some teachers will not end up with 1GB mail folders!! and complaining the mail server is so slow when they check their email via Squirrelmail at home! Thanks again for steering me straight! Take Care, Barry Cisna

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