- dovecot - dovecot.org

[Dovecot] Strange dmesg messages
by Raphael Bittencourt S. Costa 08 Apr '08

08 Apr '08

Guys, I'm getting strange messages on my new server with dovecot-1.1rc4 + lda + sieve + ldap + postfix + suse10. This server is in production since monday, and worked fine until today. The only thing I had changed was dovecot from 1.1rc3 to 1.1rc4. I already enabled mail_debug, but I got any erros after that. Does anyone have any idea of what is happening? Unable to handle kernel NULL pointer dereference at 0000000000000020 RIP: <ffffffff8019df99>{sys_inotify_rm_watch+280} PGD 1107f0067 PUD 1154c8067 PMD 0 Oops: 0002 [1] SMP last sysfs file: /block/sda/size CPU 2 Modules linked in: iptable_filter ip_tables x_tables nls_utf8 joydev st sr_mod ipv6 bonding button battery ac raid0 xfs_quota ext3 jbd loop sddlmfdrv ehci_hcd uhci_hcd hw_random usbcore shpchp ide_cd cdrom pci_hotplug bnx2 sddlmadrv xfs exportfs dm_snapshot edd dm_mod fan thermal processor lpfc scsi_transport_fc sg megaraid_sas piix sd_mod scsi_mod ide_disk ide_core Pid: 24319, comm: imap Tainted: P U 2.6.16.21-0.8-smp #1 RIP: 0010:[<ffffffff8019df99>] <ffffffff8019df99>{sys_inotify_rm_watch +280} RSP: 0018:ffff810112abbf38 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff81008bd57cf8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8100360627b8 RBP: 0000000000000000 R08: 000000000000db6a R09: 00000000051ae25c R10: 0000000047f3f600 R11: 0000000000000213 R12: ffff81008bd57cc0 R13: ffff8100360627b8 R14: ffff8100360625b0 R15: ffff810121f7c580 FS: 00002b90b22a5ae0(0000) GS:ffff81012bd6b340(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000020 CR3: 000000010adca000 CR4: 00000000000006e0 Process imap (pid: 24319, threadinfo ffff810112aba000, task ffff810026b107d0) Stack: 00000001f8c42d10 ffffffff8017b3d3 0000000000000001 00000000005ff680 00000000006027a0 0000000000000000 00000000ffffffff 00000000005e0420 00007ffff8c4af20 ffffffff8010a7be Call Trace: <ffffffff8017b3d3>{sys_read+69} <ffffffff8010a7be>{system_call+126} And dovecot's log only shows: Apr 2 18:09:16 mailserver02 dovecot: POP3(paulo.faria@): Disconnected: Logged out top=0/0, retr=1/2248, del=0/495, size=2406763 2 Apr 2 18:09:20 mailserver02 deliver(everson.todoroki@): msgid=<20080402210925.B94E2400A735(a)relay01.com.br>: saved m ail to INBOX Apr 2 18:09:20 mailserver02 dovecot: child 24319 (imap) killed with signal 9 Apr 2 18:09:21 mailserver02 dovecot: pop3-login: Login: user=<afarber@>, method=PLAIN, rip=10.0.3.2, lip=10.0.149.2 Apr 2 18:09:21 mailserver02 deliver(everson.todoroki@): msgid=<20080402210927.74F36400A8F0(a)relay02.com.br>: saved m ail to INBOX Apr 2 18:09:23 mailserver02 dovecot: pop3-login: Login: user=<alexandre.pellegrini@>, method=PLAIN, rip=10.0.3.2, lip=10.0.149. 2 mailserver02:~ # dovecot -n # 1.1.rc4: /etc/dovecot//dovecot.conf syslog_facility: local1 protocols: imap pop3 ssl_disable: yes disable_plaintext_auth: no shutdown_clients: no login_dir: /usr//var/run/dovecot/login login_executable(default): /usr//libexec/dovecot/imap-login login_executable(imap): /usr//libexec/dovecot/imap-login login_executable(pop3): /usr//libexec/dovecot/pop3-login login_process_per_connection: no login_greeting_capability(default): yes login_greeting_capability(imap): yes login_greeting_capability(pop3): no login_process_size: 128 login_processes_count: 30 login_max_processes_count: 1024 login_max_connections: 512 max_mail_processes: 10240 mail_uid: 1033 mail_gid: 1033 mail_location: maildir:%h/Maildir mail_debug: yes mail_executable(default): /usr//libexec/dovecot/imap mail_executable(imap): /usr//libexec/dovecot/imap mail_executable(pop3): /usr//libexec/dovecot/pop3 mail_plugins(default): quota imap_quota autocreate mail_plugins(imap): quota imap_quota autocreate mail_plugins(pop3): quota mail_plugin_dir(default): /usr//lib/dovecot/imap mail_plugin_dir(imap): /usr//lib/dovecot/imap mail_plugin_dir(pop3): /usr//lib/dovecot/pop3 maildir_copy_with_hardlinks = yes 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 namespace: type: private prefix: INBOX. inbox: yes list: yes subscriptions: yes auth default: mechanisms: plain login cache_size: 20480 cache_ttl: 300 cache_negative_ttl: 0 passdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf userdb: driver: prefetch userdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf socket: type: listen master: path: /var/run/dovecot/auth-master mode: 438 plugin: quota: maildir quota_rule: *:bytes=10240 quota_rule2: *:messages=30000 autocreate: SPAM.E Spam autocreate2: SPAM.Marcar Spam autocreate3: SPAM autocreate4: SPAM.Desmarcar Spam []s, Raphael Costa

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[Dovecot] dovecot and postfix virtual mailbox domains
by Dave 08 Apr '08

08 Apr '08

Hello, I'm trying to get dovecot and postfix virtual domains working on an fc6 system. My software versions are postfix 2.4.5 installed from rpm and dovecot 1.0.3 also installed from rpm. I'm only running secure protocols, pop3s at the moment, imaps later on. I've set up postfix for virtual mailbox domains as per it's howto on the subject and confirmed that email sent gets delivered to the virtual area, which in this case is /home/vmail/domain.com/username, there's a maildir under that. In this case the user is a shell user who has a login, in all other cases the users will be completely virtual, having no login account and being completely virtual. When i atempt to get mail from the server using this user, the one with the login, i am getting a can not map username coming from dovecot. Here's my config: # 1.0.3: /etc/dovecot.conf base_dir: /var/run/dovecot/ log_path: /var/log/dovecot info_log_path: /var/log/dovecot.info protocols: pop3s ssl_ca_file: /etc/dovecot/ca-cert.pem ssl_cert_file: /etc/dovecot/pop.cert ssl_key_file: /etc/dovecot/pop.key ssl_cipher_list: ALL:!LOW disable_plaintext_auth: yes login_dir: /var/run/dovecot/login login_executable: /usr/libexec/dovecot/pop3-login valid_chroot_dirs: /var/spool/vmail mail_extra_groups: mail mail_location: maildir:/home/vmail/%d/%u maildir_copy_with_hardlinks: yes mail_executable: /usr/libexec/dovecot/pop3 mail_plugin_dir: /usr/lib64/dovecot/pop3 auth default: mechanisms: plain login verbose: yes passdb: driver: passwd userdb: driver: passwd I'd appreciate any pointers. I think i am close, but am not seeing it. Thanks. Dave.

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[Dovecot] feature request: deny IP address via database
by Dave McGuire 08 Apr '08

08 Apr '08

Hey folks. One feature I'd really like to see in dovecot is the ability to point it at a database (with a configurable query) and have it allow or deny a connection based on looking up the source IP address in that database. I run Postfix, and I've got it configured to use a database server for its smtpd_client_restrictions checks. Ideally I'd like to point dovecot at the same database table. I have external tools that maintain that table. I was thinking of writing it myself, but I'm running 1.0.10; I'd assume that any such modifications would need to be rewritten for 1.1. Then I got to thinking that such functionality would likely be useful to people other than just me, so.. Thoughts? -Dave -- Dave McGuire Port Charlotte, FL

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Re: [Dovecot] feature request: deny IP address via database
by Javier García 08 Apr '08

08 Apr '08

Written by Bill Cole on Apr 7, 2008, at 4:58 PM: >> Hey folks. One feature I'd really like to see in dovecot is the >> ability to point it at a database (with a configurable query) and >> have it allow or deny a connection based on looking up the source >> IP address in that database. ... much stuff discarded. I understand that the behaviour requested is similar to that of allow_nets (http://wiki.dovecot.org/PasswordDatabase/ExtraFields/AllowNets) but modified to explicitly deny some IPs (individually or in the range form). If so, probably some of the work should be already done. Sorry, I do not have the programming abilities enough to face this. Incidentally, I would like to notice that I opened a thread a few days ago regarding allow_nets and database (Bill's request needs to make use of an external database too) because I am not able to make allow_nets work properly when using an external DB *and IP ranges*. Maybe Bill would like to block single IPs so this bug? wold not apply to his case if an extension or adaptation of allow_nets is done. (My request, in case someone out there is curious: "Allow_nets + MySQL failing when using range notation") Regards, Javier

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[Dovecot] A little assistance with Sieve
by cam＠ellisonpsychology.ca 07 Apr '08

07 Apr '08

With all the mess that my email has become, it makes sense for me to try to make use of Sieve, but I'm having quite the time finding out how to make it work. I'm running 1.0.13 on a Debian machine. Sieve appears to be compiled with it. I can access managesieve, and I have set up dovecot.conf with lda. I do not get a NO response when I PUTSCRIPI, but LISTSCRIPTS produces no result, so I assume it's not working properly, though if I try with a non-existent script I get an error message. Questions: 1. Is anyone else seeing this, or am I doing something wrong? 2. I have seen through Googling some dovecot.conf examples that suggest I should be using managesieve instead of lda (or in addition? - it's not clear), as in protocol managesieve { ... Any advice will be gratefully received. Thank you Cam -- Cam Ellison, PhD RPsych (BC #01417) Cam Ellison & Associates Ltd. 3446 Beach Avenue Roberts Creek BC V0N 2W2 Phone 604.885.4806 Fax 694.885.4809 Cell 604.989.0635

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[Dovecot] A little assistance with Sieve
by cam＠ellisonpsychology.ca 06 Apr '08

06 Apr '08

With all the mess that my email has become, it makes sense for me to try to make use of Sieve, but I'm having quite the time finding out how to make it work. I'm running 1.0.13 on a Debian machine. Sieve appears to be compiled with it. I can access managesieve, and I have set up dovecot.conf with lda. I do not get a NO response when I PUTSCRIPI, but LISTSCRIPTS produces no result, so I assume it's not working properly, though if I try with a non-existent script I get an error message. Questions: 1. Is anyone else seeing this, or am I doing something wrong? 2. I have seen through Googling some dovecot.conf examples that suggest I should be using managesieve instead of lda (or in addition? - it's not clear), as in protocol managesieve { ... Any advice will be gratefully received. Thank you Cam -- Cam Ellison, PhD RPsych (BC #01417) Cam Ellison & Associates Ltd. 3446 Beach Avenue Roberts Creek BC V0N 2W2 Phone 604.885.4806 Fax 694.885.4809 Cell 604.989.0635

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[Dovecot] Problem with dovecot under Vmware Server
by Marvin Raab 06 Apr '08

06 Apr '08

Hi all, Recently installed dovecot and postfix under Fedora8 and it works great. Then I installed both postfix and dovecot under VMWare Server (different machine) copying the same configuration files but changing the hostname and domain as appropriate. When testing the installation using: telnet hostname 143, I receive * OK Dovecot ready But when I telnet on port 25, I receive: Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. Instead of: Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. 220 mail.kickspam.net ESMTP Postfix Naturally, I cannot send email. Outlook responds with Server timeout. I've rebooted and restarted services. I've checked poermissions and postfix master.cf How can I troubleshoot or does anyone have a quick answer? Thanks! Here's the output of dovecot -n and postconf -n The same config files are on both hosts and only the installation under VMWare Server has the problem. [root@vmhost ~]# dovecot -n # 1.0.13: /etc/dovecot.conf login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login mail_location: mbox:~/mail:INBOX=/var/spool/mail/%u mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(pop3): /usr/lib/dovecot/pop3 auth default: mechanisms: plain login passdb: driver: pam userdb: driver: passwd socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix [root@vmhost ~]# postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix debug_peer_level = 2 html_directory = no inet_interfaces = all mail_owner = postfix mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man message_size_limit = 50240000 mydestination = $myhostname, $mydomain, localhost mydomain = mydomain.com myorigin = $mydomain newaliases_path = /usr/bin/newaliases.postfix queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.4.5/README_FILES relay_domains = $mydestination sample_directory = /usr/share/doc/postfix-2.4.5/samples sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_type = dovecot unknown_local_recipient_reject_code = 550

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[Dovecot] Broken Debian package
by Thing 05 Apr '08

05 Apr '08

Hi, I have run Dovecot via Debian for some years but in the last few weeks something has broken....I have been upgrading Debian but today rebooted it to try and sort out a failed DLT....now I find dovecot is non-functional.... So, Where to look for faults please? ie logs? can I make dovecot verbose? Thunderbird if telling me Dovecot is not imap4 compliant........and I cannot connect to it... I have tried re-installing Dovecot but the Debian package contains no dovecot.conf....so I have dovecot imap-d and dovecot common installed but no config. So I copied back the config files from a safe location.... When I start up I get, hermes:/var/log# tail dovecot dovecot: 2008-04-06 11:32:32 Info: Dovecot v1.0.rc15 starting up hermes:/var/log# So trying to connect, tail -f (on /var/log/dovecot), dovecot: 2008-04-06 11:57:34 Info: imap-login: Login: user=<thing>, method=plain, rip=192.168.1.101, lip=192.168.1.254, TLS dovecot: 2008-04-06 11:57:34 Error: IMAP(thing): seq = 186, rec->uid = 0, first_new_seq = 188, records = 187 dovecot: 2008-04-06 11:57:34 Error: child 20048 (imap) killed with signal 6 dovecot: 2008-04-06 11:57:34 Info: imap-login: Login: user=<thing>, method=plain, rip=192.168.1.101, lip=192.168.1.254, TLS dovecot: 2008-04-06 11:57:34 Error: IMAP(thing): seq = 186, rec->uid = 0, first_new_seq = 188, records = 187 dovecot: 2008-04-06 11:57:34 Error: child 20050 (imap) killed with signal 6 dovecot: 2008-04-06 11:57:34 Info: imap-login: Login: user=<thing>, method=plain, rip=192.168.1.101, lip=192.168.1.254, TLS dovecot: 2008-04-06 11:57:34 Error: IMAP(thing): seq = 186, rec->uid = 0, first_new_seq = 188, records = 187 dovecot: 2008-04-06 11:57:34 Error: child 20052 (imap) killed with signal 6 dovecot: 2008-04-06 11:57:35 Info: imap-login: Login: user=<phoebe>, method=PLAIN, rip=192.168.1.102, lip=192.168.1.254, TLS dovecot: 2008-04-06 11:57:35 Info: imap-login: Login: user=<thing>, method=plain, rip=192.168.1.101, lip=192.168.1.254, TLS dovecot: 2008-04-06 11:57:35 Error: IMAP(thing): seq = 186, rec->uid = 0, first_new_seq = 188, records = 187 dovecot: 2008-04-06 11:57:35 Error: child 20062 (imap) killed with signal 6 squirrelmail is also now dead.... Ideas please? regards Steven

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Re: [Dovecot] Leave mail on server leads to dup messages
by Arliss Jameson 04 Apr '08

04 Apr '08

Yep, that was it! Though I use only one user for all mail, separate home dirs are still necessary. ----- Original Message ---- From: Arliss Jameson <arlissjameson(a)yahoo.com> To: Arliss Jameson <arlissjameson(a)yahoo.com>; dovecot(a)dovecot.org Sent: Friday, April 4, 2008 5:29:04 PM Subject: Re: [Dovecot] Leave mail on server leads to dup messages Of course right when I press send, I think of something that may be the cause :) It's precisely because they are sharing the same home that this ishappening, yes? If any of the other mbox's are downloaded, dovecotincrements the X-UID count and saves it in the home? Is that right? ____________________________________________________________________________________ You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com ____________________________________________________________________________________ You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com

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Re: [Dovecot] Leave mail on server leads to dup messages
by Arliss Jameson 04 Apr '08

04 Apr '08

Of course right when I press send, I think of something that may be the cause :) It's precisely because they are sharing the same home that this ishappening, yes? If any of the other mbox's are downloaded, dovecotincrements the X-UID count and saves it in the home? Is that right? ____________________________________________________________________________________ You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com

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