- dovecot - dovecot.org

[Dovecot] 1.1b3 and Maildir quota
by Rick Romero 27 Oct '07

27 Oct '07

I upgraded a 1.0 install to 1.1b3. Almost everything is working peachy-keen :) It seems faster to me, Offline Folders and 'new mail' options for Thunderbird are now working, and Mail.App doesn't seem to need the extra namespace. Unfortunately it doesn't seem to read my quotas any longer. I went through the docs, and I see the quota plugin has changed, but there doesn't seem to be a needed configuration change. Did I miss something? I used my same dovecot.conf as 1.0: I also wiped clean my /usr/local/lib/dovecot directory and reinstalled, just to be sure, but it still doesn't work :/ Is it because I use checkpassword for my auth? # 1.1.beta3: /usr/local/etc/dovecot.conf base_dir: /var/run/dovecot/ log_path: /var/log/dovecot/dovecot.log info_log_path: /var/log/dovecot/dovecot_info.log disable_plaintext_auth: no shutdown_clients: no login_dir: /var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login login_user: nobody login_process_per_connection: no login_greeting_capability: yes login_process_size: 64 login_processes_count: 15 login_max_processes_count: 512 verbose_proctitle: yes first_valid_uid: 89 mail_executable: /usr/local/libexec/dovecot/rawlog /usr/local/libexec/dovecot/imap mail_plugins: quota imap_quota imap_client_workarounds: delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep namespace: type: private separator: . prefix: INBOX. inbox: yes list: yes auth default: user: vpopmail passdb: driver: checkpassword args: /usr/local/vpopmail/bin/vchkpw userdb: driver: prefetch plugin: quota: maildir dell#

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[Dovecot] quota problems - which Dovecot version ?
by Albert Schweizer 27 Oct '07

27 Oct '07

Hi, I've got a little problem with Dovecot IMAP. Everything works nice ( pam auth, ldap userdb, and so on ) BUT i need to uses quotas and it doesn't seem to work. I tried both ways : 1) user dovecot-ldap.conf with user_attrs, as it's shown on dovecot wiki ; 2) use the commandes "plugin {.........." in dovecot.conf But it didn't work. Strangely, when i try to use the PLUGIN command in dovecot.conf, the server crashes at start, "syntax error" in config.... I'm not sure if the quotas are supported in my Dovecot version : version : 0.99.14 release : 1.EL4 I'm using an old AlphaServer ( dec ) with Centos 4.2 installed, and it's a real mess to get yum updates. Building from sources neither worked.... Please help !!! Regards Y.V.

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[Dovecot] Dovecot 1.1b2: Enet_connect_unix(/usr/local/dovecot-1.1/var/run/dovecot/dict-server) failed: Permission denied
by David Jonas 27 Oct '07

27 Oct '07

On startup of dovecot 1.1b2 I seem to have some permission trouble. Dovecot was configured with --prefix=/usr/local/dovecot-1.1 for testing purposes while dovecot 1.0.2 is in production. # cd /usr/local/dovecot-1.1/sbin/ # ./dovecot -F -c ../etc/dovecot.conf Enet_connect_unix(/usr/local/dovecot-1.1/var/run/dovecot/dict-server) failed: Permission denied # ls -la /usr/local/dovecot-1.1/var/run/dovecot/dict-server srwxrwxrwx 1 root root 0 Oct 2 12:18 /usr/local/dovecot-1.1/var/run/dovecot/dict-server # tail -f /var/log/maillog.err Oct 2 12:23:25 kelly-a dovecot: auth(default): net_connect_unix(/usr/local/dovecot-1.1/var/run/dovecot/auth-worker.12891) failed: Permission denied Oct 2 12:23:25 kelly-a dovecot: Auth process died too early - shutting down Oct 2 12:23:25 kelly-a dovecot: child 12891 (auth) returned error 89 Changing base_dir and setting the path in the plugin params doesn't seem to make a difference either. Any ideas of what I'm doing wrong here? Thanks, David # ./dovecot -c ../etc/dovecot.conf -n # 1.1.beta2: ../etc/dovecot.conf protocols: imap pop3 listen(default): *:9143 listen(imap): *:9143 listen(pop3): *:9110 ssl_disable: yes login_dir: /var/run/dovecot-1.1/login login_executable(default): /usr/local/dovecot-1.1/libexec/dovecot/imap-login login_executable(imap): /usr/local/dovecot-1.1/libexec/dovecot/imap-login login_executable(pop3): /usr/local/dovecot-1.1/libexec/dovecot/pop3-login login_greeting: postoffice.no-ip.com (1.1) login_log_format_elements: user=<%u@%d> method=%m rip=%r lip=%l %c login_process_per_connection: no verbose_proctitle: yes first_valid_uid: 89 mail_uid: vmail mail_gid: vmail mail_executable(default): /usr/local/dovecot-1.1/libexec/dovecot/imap mail_executable(imap): /usr/local/dovecot-1.1/libexec/dovecot/imap mail_executable(pop3): /usr/local/dovecot-1.1/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugin_dir(default): /usr/local/dovecot-1.1/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/dovecot-1.1/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/dovecot-1.1/lib/dovecot/pop3 mail_log_prefix: %Us(%u)[%p]: pop3_uidl_format(default): %08Xu%08Xv pop3_uidl_format(imap): %08Xu%08Xv pop3_uidl_format(pop3): %f pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login digest-md5 cram-md5 user: nobody username_translation: %@ username_format: %Lu verbose: yes passdb: driver: sql args: /usr/local/dovecot-1.1/etc/dovecot-sql.conf userdb: driver: prefetch plugin: quota: dict:user::proxy::quota dict: quota: mysql:/usr/local/dovecot-1.1/etc/dovecot-dict-quota.conf

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[Dovecot] Duplicate message
by Timothy Murphy 27 Oct '07

27 Oct '07

I'm running dovecot on my desktop and using kmail as a client on my laptop. I am very happy with this - I was previously running kmail under NFS, and this is infinitely better. There is one small issue, which is not very important. I get a small number of messages apparently duplicated. This doesn't really matter, as there is a facility Folder=>Remove Duplicate Messages under kmail, and this deals with the issue easily enough. I just wondered though why I get the duplicate messages, and if there is some simple way to avoid them?

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[Dovecot] 1.1b4: Disconnected: EOF while appending
by Luigi Rosa 27 Oct '07

27 Oct '07

I am moving some messages from an IMAP account to another. During the process I got this message: dovecot: IMAP(mailstore): Disconnected: EOF while appending bytes=263276/427306 (no core dump) I deleted dovecot.index.cache and dovecot.index.log and the error disappeared Ciao, luigi -- / +--[Luigi Rosa]-- \ Committee: a life form with six or more legs and no brain.

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[Dovecot] virtual hosting
by gaoqiang.qian＠nokia.com 27 Oct '07

27 Oct '07

I am a newee in Dovecot, Now my dovecot is working fine to be connected to receive email sent to one domain. Could anyone tell me how can I configure it to be connected to receive email sent to another domain. I really heading the wall. thanks. Gao

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[Dovecot] dovecot-auth: Too many open files
by Joe Allesi -X (joallesi - Coyote Creek Consulting at Cisco) 27 Oct '07

27 Oct '07

All, [version: dovecot-0.99.11-4.EL4.src.rpm] We recently experienced an issue that prevented all new IMAP logins from occurring. Although it appears that it was due to running out of available system file descriptors, I'm still not sure what the true root cause was as I can't replicate the same error in our test environment. The system file descriptor max was set at (per `cat /proc/sys/fs/file-nr`) 380081 , and we're averaging around 7,000 in use. It appears that the main issue was dovecot-auth, so does this appear to fall in line with the known PAM bug in this version? Auth config: auth_userdb = passwd auth_passdb = pam Checked maillogs (cleansed): Oct 16 11:48:05 host dovecot-auth: PAM: pipe() failed: Too many open files Oct 16 04:48:06 host imap-login: Disconnected [::ffff:<internal_IP>] Oct 16 11:48:11 host dovecot-auth: PAM: pipe() failed: Too many open files Oct 16 04:48:11 host imap-login: Aborted login [::ffff:<internal_IP>] Oct 16 04:48:11 host dovecot-auth: PAM unable to dlopen(/lib/security/pam_nologin.so) Oct 16 04:48:11 host dovecot-auth: PAM [dlerror: /lib/security/pam_nologin.so: cannot open shared object file: Too many open files] Oct 16 04:48:11 host dovecot-auth: PAM adding faulty module: /lib/security/pam_nologin.so Oct 16 04:48:11 host dovecot-auth: PAM unable to dlopen(/lib/security/pam_stack.so) Oct 16 04:48:11 host dovecot-auth: PAM [dlerror: /lib/security/pam_stack.so: cannot open shared object file: Too many open files] So, during the event I performed an strace against the dovecot-auth process and noticed the following error as well: accept(3, 0xbfe05a50, [2]) = -1 EMFILE (Too many open files) gettimeofday({1192538310, 41972}, NULL) = 0 poll([{fd=3, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL, revents=POLLIN}, {fd=0, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=18, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=10, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=7, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=23, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=8, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=11, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=12, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=13, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=14, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=19, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=16, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=17, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=6, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=15, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=20, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=21, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=9, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=22, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=24, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=25, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=26, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=27, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=28, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=34, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=33, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=29, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=37, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=30, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=31, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=41, events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, ...], 1020, 1585) = 1 gettimeofday({1192538310, 99354}, {480, 0}) = 0 Then I checked for the current network connections: netstat | grep imap | wc -l 42 Then used lsof to check for open files: while true ; do lsof | awk '{ print $3 }' | wc -l ; sleep 4 ; done 21728 21668 (restarted dovecot) 1838 1953 1864 2066 2018 2020 2036 2189 2661 2558 2490 (cont @2,000) Thanks! Joe Allesi

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[Dovecot] Problem in mbox-sync.c
by Hal Pomeranz 27 Oct '07

27 Oct '07

We've just cut over to a new mail server running Dovecot 1.0.5. The underlying OS is RHEL 5. User mailboxes are stored in Unix mbox format on a local ext3 file system. The MTA on the system is the default RedHat version of Sendmail 8.13.8 with procmail for local delivery. We're using a combination of dotlock and fcntl style locking. The output of "dovecot -n" for this system appears below my signature. Periodically we see errors like the following in our logs: Oct 21 19:36:01 postoffice1 dovecot: POP3(someuser): file mbox-sync.c: line 1433 (mbox_sync_handle_eof_updates): assertion failed: (file_size >= sync_ctx->expunged_space + trailer_size) Oct 21 19:36:01 postoffice1 dovecot: POP3(someuser): Raw backtrace: pop3 [0x809eda1] -> pop3 [0x809ecbc] -> pop3(mbox_sync+0x1088) [0x806c4e8] -> pop3(mbox_storage_sync_init+0x3e) [0x806cb6e] -> pop3(client_create+0x1a4) [0x80552a4] -> pop3(main+0x556) [0x8057236] -> /lib/libc.so.6(__libc_start_main+0xdc) [0x304dec] -> pop3 [0x8054a11] Oct 21 19:36:01 postoffice1 dovecot: child 24409 (pop3) killed with signal 6 Note that while the above log is for a POP3 user, we also see similar behavior when some users access mail folders via IMAP as well. The real problem with this behavior is that sometimes, but not in all cases, the process will leave behind a dotlock when it exits. If the abandoned dotlock is on the user's inbox, then procmail won't deliver new mail to the user until the lock is cleared. This is a big problem. Anybody seen this behavior before and/or know what's causing it? Can anybody suggest ideas for further debugging this issue? We'd appreciate any help that you all can provide. Thanks! -- Hal Pomeranz, Founder/CEO Deer Run Associates hal(a)deer-run.com Network Connectivity and Security, Systems Management, Training -- # /hpsw/mail/dovecot/sbin/dovecot -n # 1.0.5: /hpsw/mail/dovecot/etc/dovecot.conf syslog_facility: local3 protocols: imap imaps pop3 pop3s ssl_cert_file: /hpsw/mail/configs/dovecot/pki/certs/dovecot.pem ssl_key_file: /hpsw/mail/configs/dovecot/pki/private/dovecot.pem disable_plaintext_auth: no login_dir: /hpsw/mail/dovecot/var/run/dovecot/login login_executable(default): /hpsw/mail/dovecot/libexec/dovecot/imap-login login_executable(imap): /hpsw/mail/dovecot/libexec/dovecot/imap-login login_executable(pop3): /hpsw/mail/dovecot/libexec/dovecot/pop3-login mail_location: mbox:/hpsw/mail/users/%u/dovecot:INBOX=/hpsw/mail/users/%u/MBOX mbox_read_locks: dotlock fcntl mail_executable(default): /hpsw/mail/dovecot/libexec/dovecot/imap mail_executable(imap): /hpsw/mail/dovecot/libexec/dovecot/imap mail_executable(pop3): /hpsw/mail/dovecot/libexec/dovecot/pop3 mail_plugin_dir(default): /hpsw/mail/dovecot/lib/dovecot/imap mail_plugin_dir(imap): /hpsw/mail/dovecot/lib/dovecot/imap mail_plugin_dir(pop3): /hpsw/mail/dovecot/lib/dovecot/pop3 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv auth default: passdb: driver: pam userdb: driver: passwd

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[Dovecot] master user can not login with digest-md5 password
by Daniel 27 Oct '07

27 Oct '07

Hi! I'm trying to use a master user, here is what I'm doing: dovecot.conf: auth default { [...] passdb passwd-file { args = /etc/dovecot.passdb_master pass = yes master = yes } passdb passwd-file { args = /etc/dovecot.passdb } [...] } (Dovecot said that one can not place the passdb containing "master = yes" last, why?) This only works if the master user (in the master passwd file) has PLAIN password scheme. It doesn't work with DIGEST-MD5. Here is the log when it's in DIGEST-MD5: auth(default): passdb(master,84.x.x.x,master): Master user logging in as leva auth(default): digest-md5(leva,84.x.x.x): password mismatch imap-login: Disconnected: user=<leva>, method=DIGEST-MD5, rip=84.x.x.x, lip=212.x.x.x, TLS When the master password is in PLAIN scheme, I can login as anyone. I'm using dovecot-1.1beta4. Daniel

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[Dovecot] Messages not marked as read
by Manilal K M 27 Oct '07

27 Oct '07

Hello everybody, Recently I have migrated my IMAP server from Courier-IMAP to dovecot. The migration was successful and all the users are happy due to the speed of the new IMAP server. We are using Horde-3.2+IMP-4.2 as the webmail client. But one of the users is having some unusual issues with his mailbox. Whenever he clicked and open a new email, it's never marked as read. He has to click and open several times to get it marked as "Read". I checked the dovecot version and found that we have a unstable version. So I upgraded to the latest stable version(1.0.5). But still occasionally he has the same issue. Does anyone have experienced similar issue. Please share. regards -- Manilal K M. http://linuxeyes.blogspot.com http://flossvalley.blogspot.com Better to light one candle than to curse the darkness.

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