- dovecot - dovecot.org

[Dovecot] fallback for proxy?
by Cor Bosman 28 Oct '07

28 Oct '07

Is it possible somehow to configure a fallback for a failed proxy? I am using sql based proxying through dovecot, but it would be nice if you can fallback to another host if the proxy destination server is down. High availability and all.. Regards, Cor

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[Dovecot] More core dump stack traces
by Lloyd Parkes 28 Oct '07

28 Oct '07

Hi all, I found a whole bunch of core files from imap this evening, so here are the stack traces from each. Unlike my last message, I don't have debugging symbols for these, so there isn't any analysis I can easily do. There were several cores with the first stack trace and one with the second trace. The core dump for the second trace is the only one I noticed. I suspect that the first trace happens when the client host goes to sleep. If so, the situation needs to be handled more gracefully. I'm currently building a copy of imap with debugging symbols. Dovecot Version: 1.1.beta3 with the notify patch from a few days ago OS: NetBSD/sparc64 4.0_RC3 (big endian, 64bit) File System: local UFS #0 0x0000000040550010 in abort () from /usr/lib/libc.so.12 #1 0x0000000000180770 in i_error () #2 0x00000000001805fc in i_panic () #3 0x00000000001192a4 in client_destroy () #4 0x00000000001196c8 in client_continue_pending_input () #5 0x0000000000114ecc in cmd_fetch () #6 0x000000000011515c in cmd_fetch () #7 0x0000000000118828 in client_command_cancel () #8 0x00000000001190c8 in client_destroy () #9 0x0000000000186d64 in io_loop_handler_run () #10 0x0000000000186198 in io_loop_run () #11 0x0000000000120fe8 in main () #0 0x0000000000129c3c in maildir_uidlist_iter_deinit () #1 0x000000000012a064 in maildir_uidlist_sync_get_full_filename () #2 0x000000000012c380 in maildir_uidlist_sync_deinit () #3 0x00000000001282ac in maildir_sync_notify () #4 0x0000000000128574 in maildir_storage_sync_init () #5 0x000000000016ec74 in mailbox_sync_init () #6 0x000000000016ed10 in mailbox_sync () #7 0x0000000000117484 in cmd_select_full () #8 0x0000000000117610 in cmd_select () #9 0x0000000000118c78 in client_send_command_error () #10 0x0000000000118d60 in client_send_command_error () #11 0x0000000000119430 in client_input () #12 0x0000000000186d64 in io_loop_handler_run () #13 0x0000000000186198 in io_loop_run () #14 0x0000000000120fe8 in main ()

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[Dovecot] dovecot 1.1b4 not listing public folder children
by Adam McDougall 27 Oct '07

27 Oct '07

ACL plugin still disabled. The folders listed below definitely do have Children. telnet session problem example in 1.1b4: * OK Dovecot ready. ? login mcdouga9 password ? OK Logged in. 9 LIST "" "#shared/decs/%" * LIST (\HasNoChildren) "/" "#shared/decs/support" * LIST (\HasNoChildren) "/" "#shared/decs/receipts" * LIST (\HasNoChildren) "/" "#shared/decs/network" * LIST (\HasNoChildren) "/" "#shared/decs/postmaster" * LIST (\HasNoChildren) "/" "#shared/decs/security" * LIST (\HasNoChildren) "/" "#shared/decs/jbossadmin" * LIST (\HasNoChildren) "/" "#shared/decs/unixadmin" truss shows: (null)() = 0 (0x0) gettimeofday({1193511545.540129},0x5b7f00) = 0 (0x0) gettimeofday({1193511545.540216},0x0) = 0 (0x0) kevent(6,{},0,{0x0,EVFILT_READ,0x0,0,0x1c,0x5b83c0},3,{9.999784000}) = 1 (0x1) gettimeofday({1193511551.475630},0x5b7f00) = 0 (0x0) break(0x5d0000) = 0 (0x0) read(0,"9 LIST "" "#shared/decs/%"\r\n",4096) = 28 (0x1c) break(0x5d3000) = 0 (0x0) break(0x5d4000) = 0 (0x0) break(0x5d7000) = 0 (0x0) stat("/home/mcdouga9/Maildir",{mode=drwxr-xr-x ,inode=98,size=16384,blksize=4096}) = 0 (0x0) open("/home/mcdouga9/Maildir",O_NONBLOCK,00) = 7 (0x7) fstat(7,{mode=drwxr-xr-x ,inode=98,size=16384,blksize=4096}) = 0 (0x0) fcntl(7,F_SETFD,FD_CLOEXEC) = 0 (0x0) __sysctl(0x7fffffffdf10,0x2,0x10acabf8,0x7fffffffdf08,0x0,0x0) = 0 (0x0) fstatfs(0x7,0x7fffffffdf40) = 0 (0x0) break(0x5d8000) = 0 (0x0) getdirentries(0x7,0x5d7000,0x1000,0x5c8428) = 4096 (0x1000) getdirentries(0x7,0x5d7000,0x1000,0x5c8428) = 4096 (0x1000) getdirentries(0x7,0x5d7000,0x1000,0x5c8428) = 0 (0x0) lseek(7,0x0,SEEK_SET) = 0 (0x0) close(7) = 0 (0x0) stat("/egr/mail/shared/decs",{mode=drwxrwx--- ,inode=6962613,size=8192,blksize=4096}) = 0 (0x0) open("/egr/mail/shared/decs",O_NONBLOCK,00) = 7 (0x7) fstat(7,{mode=drwxrwx--- ,inode=6962613,size=8192,blksize=4096}) = 0 (0x0) fcntl(7,F_SETFD,FD_CLOEXEC) = 0 (0x0) fstatfs(0x7,0x7fffffffdf40) = 0 (0x0) getdirentries(0x7,0x5d7000,0x1000,0x5c8428) = 3072 (0xc00) getdirentries(0x7,0x5d7000,0x1000,0x5c8428) = 0 (0x0) lseek(7,0x0,SEEK_SET) = 0 (0x0) close(7) = 0 (0x0) write(1,"* LIST (\\HasNoChildren) "/" "#s"...,559) = 559 (0x22f) gettimeofday({1193511551.479498},0x0) = 0 (0x0) kevent(6,{},0,{},3,{4.060502000}) = 0 (0x0) gettimeofday({1193511555.540489},0x5b7f00) = 0 (0x0) gettimeofday({1193511555.540561},0x0) = 0 (0x0) Dovecot 1.0 on the same directory: 9 LIST "" "#shared/decs/%" * LIST (\HasChildren) "/" "#shared/decs/receipts" * LIST (\HasChildren) "/" "#shared/decs/support" * LIST (\HasChildren) "/" "#shared/decs/network" * LIST (\HasChildren) "/" "#shared/decs/postmaster" * LIST (\HasChildren) "/" "#shared/decs/security" * LIST (\HasChildren) "/" "#shared/decs/unixadmin" * LIST (\HasChildren) "/" "#shared/decs/linuxadmin" * LIST (\HasChildren) "/" "#shared/decs/backups" * LIST (\HasChildren) "/" "#shared/decs/printmaster" 9 OK List completed. # 1.1.beta4: /usr/local/etc/dovecot.conf ssl_cert_file: /usr/local/etc/apache2/ssl/cert.pem ssl_key_file: /usr/local/etc/apache2/ssl/cert.pem disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login verbose_proctitle: yes first_valid_uid: 1000 first_valid_gid: 0 mail_location: maildir:%h/Maildir:CONTROL=%h/Maildir/dovecot11testing/private/control:INDEX=%h/Maildir/dovecot11testing/private/indexes mail_debug: yes mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes mail_log_max_lines_per_sec: 0 imap_client_workarounds: delay-newmail netscape-eoh tb-extra-mailbox-sep namespace: type: public separator: / prefix: #shared/decs/ location: maildir:/egr/mail/shared/decs:CONTROL=%h/Maildir/dovecot11testing/public/control/decs:INDEX=%h/Maildir/dovecot11testing/public/indexes/decs list: yes subscriptions: yes namespace: type: private separator: / prefix: mail/ location: maildir:%h/Maildir:CONTROL=%h/Maildir/dovecot11testing/private/control:INDEX=%h/Maildir/dovecot11testing/private/indexes hidden: yes subscriptions: yes namespace: type: private separator: / inbox: yes list: yes subscriptions: yes auth default: mechanisms: plain login passdb: driver: pam userdb: driver: passwd socket: type: listen client: path: /var/spool/postfix/private/auth mode: 384 user: postfix group: postfix plugin: acl: vfile:/usr/local/etc/dovecot-acls

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[Dovecot] Possible Caching Bug showing up as a MIME Boundary Issue
by Kevin A. McGrail 27 Oct '07

27 Oct '07

Possible Caching Bug showing up as a MIME Boundary Issue I'm using Dovecot version 1.0.0. I was using Dovecot version 1.0.0 beta3 or alpha4. I upgraded to Dovecot 1.0.0 to make sure that was not the issue. Over the past few weeks on a server running a stable dovecot, I have seem a few emails arriving where the MIME document structure dividers are visible. I've included a screenshot showing this. Using OE6 as client. Have tried adding oe6-fetch-no-newmail per clients wiki but this seems to stop the ability to login at all. I am using two different machines with Outlook Express to access the same email. The same problem will show up on both. Usually, if I delete the .imap cache for the folder, the email comes down correctly. My dovecot -n output is: # /etc/dovecot.conf listen: *:144 ssl_listen: *:994 ssl_cert_file: /usr/local/ssl/certs/stunnel.pem ssl_key_file: /usr/local/ssl/certs/stunnel.pem disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login max_mail_processes: 50 verbose_proctitle: yes default_mail_env: mbox:~/:INBOX=/var/spool/mail/%u mail_location: mbox:~/:INBOX=/var/spool/mail/%u imap_client_workarounds: outlook-idle delay-newmail auth default: passdb: driver: pam userdb: driver: passwd userdb: driver: prefetch The server is on a heavily modified RedHat 7.2 on x86 box with ext3 Thanks in Advance, KAM

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[Dovecot] trouble deleting folders that only contain folders
by Ken A 27 Oct '07

27 Oct '07

Hi, I'm using dovecot 1.0.5 with mbox storage. Users can't delete folders that are created to 'only hold other folders'. I can create these folders with no problem. They are directories in the file system. Normal folders (which are mbox files) are deleted with no problem. I've tried with both squirrelmail and Thunderbird, and what happens when a delete is requested, is that all files within the folder's dir tree are deleted and the client is unsubscribed, but the directory tree remains. Any ideas? Thanks, Ken -- Ken Anderson Pacific.Net

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[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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[Dovecot] Keywords (labels) support via virtual folders
by Robert Tomanek 27 Oct '07

27 Oct '07

Hi all, while I am rather a beginner when it comes to IMAP, I was thinking whether it would be possible (and feasible) to implement setting and unsetting of IMAP keywords with the means of virtual folders in Dovecot. The background is that the IMAP keywords seem to be a very useful thing to me: I would often like to be able to 'tag' a message so that it is easy to group with other similar messages and easy to find/ browse later. The problem is that not all IMAP clients support this functionality (as far as I am aware, mine which happens to be The Bat! does not); the only way of achieving similar results is using regular folders for grouping messages but this has several disadvantages, the most prominent one being unable to assign more than one 'tag' to a message this way (without copying a message). What I am thinking of is a server-side 'helper' that intends to achieve functionality similar to native client keywords support by the means of providing 'virtual folders' (as opposed to regular folders that we've known for a long time). The server would expose a list of virtual folders (user defined, either server-side by modifying the configuration, or client-side, by using the existing 'create regular folder' folder functionality but using a special name format that would be recognized by the server to be virtual folder related). These virtual folders would, upon moving a message to them, apply a keyword to the message (but the message would not be moved as it would be the case with regular folders). Upon moving a message from a virtual folder, the keyword would be reset. This means that the messages would not normally be moved from their place in existing hard folder structure but they would additionally be flagged with a keyword (or more of them) and be visible in respective virtual folders. The result is: - keywords support for clients that do not natively support it, - leaving existing message folder structure intact, - support for multiple keywords/ labels per message (one virtual folder = one keyword), - browsing flagged messages via respective virtual folders. What do you think of it? While I've been toying with this and similar ideas for a long time, what I propose above is of course heavily influenced by the recent addition of IMAP access to Gmail ([1]). While I still do not have it enabled for my account, I presume this is how the Gmail labels get translated to IMAP client ([2], [3]). [1] https://mail.google.com/support/bin/topic.py?topic=12760 [2] https://mail.google.com/support/bin/answer.py?answer=77657&topic=12762 [3] https://mail.google.com/support/bin/answer.py?answer=78758&topic=12762 -- Best regards, Robert Tomanek mailto:dovecot@mail.robert.tomanek.org

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[Dovecot] few questions about 1.1*
by Daniel 27 Oct '07

27 Oct '07

Hi! I'm testing 1.1, and have some questions. (How) Can I override the default maildir++ quota setting (I mean quota_rule) in the userdb, so that one won't have quota at all. Right now I'm setting a very high limit in the userdb with quota_rule=*:storage=99G in the extra field. Prior to 1.1 I was using 1.0 and had fs quota. I've had set up dovecot so that the indexes were stored on another partition where there were no fs quotas for the users. Now I'm trying to use maildir++ quota, and wondering if there is still any use of keeping the index files on a separate partition. This will be maybe a bit stupid, but do I still need the quota plugin to be loaded in the protocol {imap,pop3,lda} sections if I'm using the above mentioned new 1.1 maildir++ quota? Furthermore, will deliver be aware of the new quota system? Thanks! Daniel

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[Dovecot] append bug in 1.1beta4?
by Daniel 26 Oct '07

26 Oct '07

Hi! I'm guessing this is the append bug which is still present in dovecot-1.1beta4?: Info: IMAP(leva): Disconnected: EOF while appending bytes=31665/119125 This happens after sending a mail, and trying upload/copy that mail from my local "Sent" folder to my IMAP server's Sent folder. Daniel

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[Dovecot] Two certificates ?
by Lars Johansen 26 Oct '07

26 Oct '07

Hi We have a dovecot server running both pop and imap, we have pop.domain.ltd and imap.domain.ltd going to the same server, is there any possibility make dovecot use two certificates? one for pop.domain.ltd and one for imap.domain.ltd? Greetings, Lars

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[Dovecot] sieve filtering, rewriting subjects
by Ian P. Christian 26 Oct '07

26 Oct '07

Is it possible to modify an emails subject line in a sieve script? I've seen references to 'addtag' whilst googling, but it appears dovecots implementation doens't support it - are there any other methods? As a side note, can anyone suggest a web based script editor that works? Simply a text area to write the script in would do Thanks, -- Ian P. Christian ~ pookey.co.uk

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[Dovecot] SSL help needed - "no root certificate"
by Jim Gottlieb 26 Oct '07

26 Oct '07

Hi. I've spent the past few hours trying to get SSL working right in Dovecot 1.0.5 and now I must turn to you for help. I purchased an SSL certificate from Go Daddy. I pointed ssl_cert_file to the .crt file and ssl_key_file to the .key file, but the client (Mail.app) complains: Mail was unable to verify the identity of this server, which has a certificate issued to "imap.nccom.com". The error was: There is no root certificate for this server. So I tried downloading Go Daddy's root certificate and pointing ssl_ca_file to that file, but that didn't help. So I tried pointing ssl_ca_file to the intermediate certificate sent to me by Go Daddy, but that breaks things to the point where I never even get the above message; just nothing happens at all. I'm not sure what to try next and am happy to entertain any suggestions. Thanks...

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[Dovecot] Dovecot crashing with "Status userdb: Empty key (=)"
by Mark Maynereid 25 Oct '07

25 Oct '07

Hi, Dovecot is crashing at startup on my system: mantrid:/etc/apt# tail /var/log/mail.err Oct 25 17:10:50 mantrid dovecot: Auth process died too early - shutting down Oct 25 17:10:50 mantrid dovecot: auth(default): Status userdb: Empty key (=) Oct 25 17:10:50 mantrid dovecot: child 21810 (auth) returned error 89 Oct 25 17:10:51 mantrid dovecot: Temporary failure in creating login processes, I have also noticed this error: mantrid:/home/vmail# tail /home/vmail/dovecot-deliver.log deliver(support(a)unitdb.com): "2007-10-25 04:59:54 "Error: net_connect(/var/run/dovecot/auth-master) failed: No such file or directory I've been trying to implement the tutorial at: http://workaround.org/articles/ispmail-etch/ which seemed to be going well until the end of step 6 and I've posted a message on their mailing list but figured this looks like a deeper problem hence the post here also. System info: dovecot-common 1.0.rc15-2etch1 dovecot-imapd 1.0.rc15-2etch1 dovecot-pop3d 1.0.rc15-2etch1 Debian stable 4.0 (Etch) but running mixed on some packages Intel(R) Celeron(R) CPU 2.40GHz Ext3 filesystem mantrid:/etc/init.d# dovecot -n # /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login mail_extra_groups: mail mail_location: maildir:/home/vmail/%d/%n auth default: mechanisms: plain login debug: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: passwd userdb: driver: static args: args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: vmail Can anyone help? Thanks, Mark

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[Dovecot] SSL/TLS with Outlook client
by Eli 25 Oct '07

25 Oct '07

I am trying to get TLS to work with Outlook 2007 and I've hit a small problem. Whenever I start it up, I get this error: "The server you are connected to is using a security certificate that cannot be verified. The target principal name is incorrect." (yes/no choice of trusting) I first tried with a wildcard cert (*.elisand.com), and then tried with mail.elisand.com - both certs are from cacert.org and the root CA certs are installed and functioning properly on my system (so the certs should be trusted). I've searched all over Google and such trying to find out why Outlook would give me this error from an IMAP/TLS connection (closest I could find was Exchange related info), and I know this is by no means an Outlook mailing list... though I'm just wondering if anyone else on here has ever encountered this problem before and could point me in the right direction to getting the SSL cert working with Outlook. Thanks in advance!

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[Dovecot] POP3/IMAP newbie question
by Lars Stavholm 24 Oct '07

24 Oct '07

Is it possible to serve both POP3 and IMAP for the same user from the same mailbox format, e.g. the maildir format? If so, how should I configure in dovecot.conf? At the moment I have (dovecot -n): # 1.1.beta2: /etc/dovecot/dovecot.conf base_dir: /var/run/dovecot/ protocols: imap imaps pop3 pop3s ssl_disable: yes disable_plaintext_auth: no login_dir: /var/run/dovecot//login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login mail_extra_groups: mail mail_location: maildir:~/Mail mail_full_filesystem_access: yes dotlock_use_excl: yes mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugins(default): quota trash dspam expire autocreate mail_plugins(imap): quota trash dspam expire autocreate mail_plugins(pop3): quota expire mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 imap_client_workarounds(default): delay-newmail outlook-idle imap_client_workarounds(imap): delay-newmail outlook-idle imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login gssapi username_format: %n passdb: driver: pam args: blocking=yes dovecot userdb: driver: passwd args: blocking=yes socket: type: listen master: path: /var/run/dovecot/auth-master mode: 384 plugin: quota: fs:storage=102400 trash: /etc/dovecot/trash.conf sieve: ~/.dovecot.sieve dspam: /usr/sbin/dspam:Spam:nosignature:Trash:users autocreate: Spam I.e., I use the same mail_location for both POP3 and IMAP. However, mails are delivered to ~/Mail/inbox and seems to be invisible to both my IMAP and POP3 client (Thunderbird). Any input appreciated /Lars

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[Dovecot] How to debug slow operation
by zbigniew szalbot 24 Oct '07

24 Oct '07

Hello, I am no programmer at all. I have dovecot set up on two very similar machines. On one of the boxes, the dovecot server has recently been showing slower response times. It feels slower. Where it is slower, dovecot works as an auth server for postfix. I have replaced exim with postfix on that box and I think since then dovecot started to slow down. On the other machine the MTA is exim. I'd like to ask how to go about debugging the problem. Neither machine serves many users, the one that is slower has currently only two. It's a home setup really. Here's the output of dovecot -n # 1.0.5: /usr/local/etc/dovecot.conf protocols: imap imaps pop3 pop3s disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login login_greeting: Server ready. verbose_proctitle: yes first_valid_uid: 125 first_valid_gid: 125 mail_extra_groups: mail mail_location: maildir:/usr/local/virtual/%d/%n mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/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/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): outlook-idle pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login passdb: driver: sql args: /usr/local/etc/dovecot-postfix-sql.conf userdb: driver: sql args: /usr/local/etc/dovecot-postfix-sql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 384 user: postfix group: postfix Many thanks for your suggestions! Zbigniew Szalbot

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