- dovecot - dovecot.org

[Dovecot] Experience with ALTStorage on NFS mount
by Urban Loesch 18 Nov '13

18 Nov '13

Hi, we are thinking about storing older mails (eg. safed before 6 months) to an alternative storage mounted via NFS from an external storage box. Some technical details - the storage will be connected via 1 gbit ethernet. Access will be allowed from different dovecot servers, but only to divided directories for each dovecot. - storage has the option to use RAID 5 or 6. Max. amount of Disks are 15. - the index files and the primary storage are just divided in two different directories and are stored local on SAS disks with RAID 10 - current mail_location config is: mdbox:/home/vmail/%d/%n:INDEX=/home/dovecotindex/%d/%n - future mail_location config shoudl look like: mdbox:/home/vmail/%d/%n:INDEX=/home/dovecotindex/%d/%n:ALT=/home/extstorage/vmail/%d/%n My question is, if someone of you have already experience in such a setup with NFS? And are there some tuning tips for NFS? We have not many experience with NFS right now. Or perhaps is there some better solution? Many thanks and regards Urban

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Re: [Dovecot] highly available userdb
by Nick Edwards 18 Nov '13

18 Nov '13

On 11/12/13, Jan-Frode Myklebust <janfrode(a)tanso.net> wrote: > My installation is only serving 1/10 of your size, but long time ago we > migrated off mysql for userdatabase, and over to LDAP. The MySQL data > source had issues (not dovecot related), and didn't seem like the right > tool for the job. A database is a database, a master is a master, and a slave is a slave our mysql has never had problem, not a single one, its why I'm so annoyed dovecot is talking to master when it doesn't need to

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[Dovecot] I wrote CheckPassword Shell example for Dovecot
by Nicolay Vizovitin 18 Nov '13

18 Nov '13

Hello, Seeing as there are not too many Dovecot CheckPassword driver usage examples on the Internet, I wrote one using Shell script. You can see post about it here: http://devblog.plesk.com/2013/11/shell-checkpassword-authentication-in-dove…. The post also has a link to Mercurial repository with the example. Feel free to use the example as you see fit. You may even include it into documentation (or link to it), if you'd like. Thanks for such great software as Dovecot! -- Best regards, Nick

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Re: [Dovecot] Issue with Mavericks Mail Client
by Ken Mandelberg 17 Nov '13

17 Nov '13

Timo Sirainen<tss(a)iki.fi> wrote > On 17.11.2013, at 1.47, Ken Mandelberg<km(a)mathcs.emory.edu> wrote: > >> >We run a dovecot mailserver. One of the clients I use is a Mac Laptop. Recently I upgraded from Mountain Lion (10.8) to Mavericks (10.9). Under 10.8 it worked fine. On 10.9 it syncs up when I invoke the client, but after a while stops getting updates. >> > >> >Most of my mail clients are on Linux (thunderbird) or Android (K9) and I admit that several run against my very large INBOX simultaneously. The one of the 10.9 Mac laptop is the only one with this issue. >> > >> >Is there something known about the new 10.9 Mail client on the Mac that would lose sync against dovecot? > You didn?t mention what Dovecot version. Anyway I?ve noticed once that 10.9 Mail didn?t show some of my mails until I restarted it. Then there are several other annoying bugs.. I really shouldn?t have upgraded yet. We are running Dovecot 2.0.12, and I already have the Mavericks Mail patch of a few days ago. Still requires a restart to get new mail.

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[Dovecot] Issue with Mavericks Mail Client
by Ken Mandelberg 17 Nov '13

17 Nov '13

We run a dovecot mailserver. One of the clients I use is a Mac Laptop. Recently I upgraded from Mountain Lion (10.8) to Mavericks (10.9). Under 10.8 it worked fine. On 10.9 it syncs up when I invoke the client, but after a while stops getting updates. Most of my mail clients are on Linux (thunderbird) or Android (K9) and I admit that several run against my very large INBOX simultaneously. The one of the 10.9 Mac laptop is the only one with this issue. Is there something known about the new 10.9 Mail client on the Mac that would lose sync against dovecot?

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Re: [Dovecot] PAM and user@domain login?
by Larry Rosenman 17 Nov '13

17 Nov '13

Yes, it does. I wish the documentation on the Wiki was easier to find gems like this. Thank You! On Fri, Nov 15, 2013 at 12:43 PM, Pascal Volk < user+dovecot(a)localhost.localdomain.org> wrote: > On 11/15/2013 06:35 PM Larry Rosenman wrote: > > Is there a way with 2.2.6 to have the system do a PAM login for user when > > presented with > > login user@domain pass > > from the IMAP services? > > > > I have a stupid android client that wants to use user@domain but doesn't > > have an option > > to pass just user..... > > > > Thanks for any help. > > > > > > > > Does auth_username_format=%n solve your issue? > > > Regards, > Pascal > -- > The trapper recommends today: decade.1331919(a)localdomain.org > -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 (c) E-Mail: larryrtx(a)gmail.com US Mail: 108 Turvey Cove, Hutto, TX 78634-5688

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[Dovecot] PAM and user@domain login?
by Larry Rosenman 16 Nov '13

16 Nov '13

Is there a way with 2.2.6 to have the system do a PAM login for user when presented with login user@domain pass from the IMAP services? I have a stupid android client that wants to use user@domain but doesn't have an option to pass just user..... Thanks for any help. -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 (c) E-Mail: larryrtx(a)gmail.com US Mail: 108 Turvey Cove, Hutto, TX 78634-5688

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[Dovecot] Replication Setup
by springy 16 Nov '13

16 Nov '13

Hi, I am attempting to setup replication between two hosts running Centos 6.4 and Dovecot 2.2.5. My users are real unix users, so I am trying to run the replication as root user, so that it has the appropriate permissions to run. I have two users at present syd1 and syd2, and the two hosts are called syd1 and syd2 as well. When I start Dovecot with the settings below, nothing happens, and the two mailboxes remain un-synced. There are no errors in the log, just Dovecot starting successfully. I have attempted to run the dsync command manually from syd1: ssh -q -o StrictHostKeyChecking=no -i /home/vmail/.ssh/id_ecdsa root@syd2 doveadm dsync-server -usyd1 and I get the following in response, but this might be normal: VERSION dsync 3 1 Hhostname sync_ns_prefix sync_box sync_box_guid sync_type debug sync_visible_namespaces exclude_mailboxes send_mail_requests backup_send backup_recv lock_timeouno_mail_sync no_backup_overwrite Smailbox_guid last_uidvalidity last_common_uid last_common_modseq last_common_pvt_modseq changes_during_sync Nname existence mailbox_guid uid_validity uid_next last_renamed_or_created subscribed last_subscription_change Dhierarchy_sep mailboxes dirs unsubscribes Bmailbox_guid uid_validity uid_next messages_count first_recent_uid highest_modseq highest_pvt_modseq mailbox_lost cache_fields have_guids have_save_guids Atype key value stream deleted last_change modseq Ctype uid guid hdr_hash modseq pvt_modseq save_timestamp add_flags remove_flags final_flags keywords_reset keyword_changes Rguid uid Mguid uid pop3_uidl pop3_order received_date stream cname decision last_used . Hsyd2 The prompt hangs, when I push enter I get: dsync-remote(syd1): Error: dsync(local): Remote dsync doesn't use compatible protocol Please can someone help me diagnose? Cheers, D Here are my dovecot in outputs: syd1: # 2.2.5: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-358.23.2.el6.x86_64 x86_64 CentOS release 6.4 (Final) auth_mechanisms = plain login disable_plaintext_auth = no dsync_remote_cmd = ssh -q -o StrictHostKeyChecking=no -i /home/vmail/.ssh/id_ecdsa root@%{host} doveadm dsync-server -u%u mail_location = maildir:~/Maildir mail_plugins = " notify replication" mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { mail_replica = remote:root@syd2 } protocols = imap pop3 service replicator { process_min_avail = 1 } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } protocol lmtp { mail_plugins = replication } protocol imap { mail_plugins = replication } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } syd2: # 2.2.5: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-358.23.2.el6.x86_64 x86_64 CentOS release 6.4 (Final) auth_debug = yes auth_mechanisms = plain login disable_plaintext_auth = no dsync_remote_cmd = ssh -q -o StrictHostKeyChecking=no -i /home/vmail/.ssh/id_ecdsa root@%{host} doveadm dsync-server -u%u mail_location = maildir:~/Maildir mail_plugins = " notify replication" mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { mail_replica = remote:root@syd2 } protocols = imap pop3 service replicator { process_min_avail = 1 } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } protocol lmtp { mail_plugins = replication } protocol imap { mail_plugins = replication } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } -- View this message in context: http://dovecot.2317879.n4.nabble.com/Replication-Setup-tp45415.html Sent from the Dovecot mailing list archive at Nabble.com.

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[Dovecot] Dovecot antispam unable to call dspam since dovecot upgrade to 2.X
by Guillaume Hilt 15 Nov '13

15 Nov '13

Hello, Running Gentoo AMD64 2013 with postfix, mysql, dovecot and dspam, i finally upgraded to dovecot 2.X. I'm running dovecot 2.2.6, dspam 3.10.2-r1 and dovecot-antispam-2.0_pre20130429. My DSPAM configuration hasn't changed between dovecot 1.X and 2.X. When i'm moving a mail to or from the Spam folder, Igot this error in my logs : Nov 14 10:33:25 srv1 dovecot: imap(ghilt(a)shadowprojects.org): Debug: dspam error:7751 prefix=imap(ghilt(a)shadowprojects.org): Nov 14 10:33:25 srv1 dovecot: imap(ghilt(a)shadowprojects.org): Debug: executing /usr/bin/dspam failed: 13 (uid=1001, gid=12) Nov 14 10:33:25 srv1 dovecot: imap: Error: Nov 14 10:33:25 srv1 dovecot: imap: Error: uid 1001 is user vmail (dovecot is running under vmail) gid 12 is group mail (vmail is a member, with mail,postfix,dspam,dovecot,apache) I enabled DSPAMdebug mode and when i move the mail, i don't see anything in the logs, meaning that dspam isn't called at all. Enabling debug in dovecot doesn't give me more informations. Here's my dovecot plugins settings : plugin { #setting_name = value # Selects the specific backend to be used for spam system training antispam_backend = dspam # Specifies whether to allow appending mails to the spam folder # from the unknown source. Optional, default = NO. antispam_allow_append_to_spam = NO # Specifies whether to skip the leading "From " line of the mail # piped to the backend processor. Optional, default = NO. antispam_skip_from_line = NO # semicolon-separated list of spam folders antispam_spam = Spam # semicolon-separated list of Trash folders (default unset i.e. none) antispam_trash = Trash # semicolon-separated list of unsure folders (default unset i.e. none) #antispam_unsure = # mail signature (used with any backend requiring a signature) antispam_signature = X-DSPAM-Signature # specifies what to do if the signature header is missing. Possible # values: "move" (move the mail silently without training), "error" # (display an error stating that the signature header is missing). # Optional, default = "error". antispam_signature_missing = error # specifies the path to the dspam client binary. # Optional, default = "/usr/bin/dspam". antispam_dspam_binary = /usr/bin/dspam # list of command line arguments to the dspam binary. Must include # one "%%s" in order to be replaced with the signature value. # Optional, default = "--source=error;--signature=%%s". antispam_dspam_args = --user;%u;--deliver=;--source=error;--signature=%%s # command line argument to specify that mail should be reclassified # as SPAM. Optional, default = "--class=spam". antispam_dspam_spam = --class=spam # command line argument to specify that mail should be reclassified # as not SPAM. Optional, default = "--class=innocent". antispam_dspam_notspam = --class=innocent # specifies the mail header name to derive the classification result. # Optional, default = NONE. antispam_dspam_result_header = X-DSPAM-Result # specifies the list of classification results to avoid retraining # for. Optional, default = NONE. #antispam_dspam_result_blacklist = Virus;Blocklisted;Blacklisted } USE flags : [I] mail-filter/dovecot-antispam Available versions: (~)2.0_pre20120226 (~)2.0_pre20130429 Installed versions: 2.0_pre20130429(12:26:34 04/11/2013) Homepage: http://wiki2.dovecot.org/Plugins/Antispam/ Description: A dovecot antispam plugin supporting multiple backends [I] net-mail/dovecot Available versions: 2.0.19 2.1.9 2.1.16 (~)2.1.17 2.2.5 (~)2.2.6 {bzip2 caps cydir doc imapc ipv6 kerberos ldap lucene +maildir managesieve mbox mdbox mysql pam pop3c postgres sdbox selinux sieve solr sqlite (+)ssl static-libs suid tcpd vpopmail zlib} Installed versions: 2.2.6(12:26:15 04/11/2013)(bzip2 ipv6 maildir managesieve mysql pam sieve ssl tcpd zlib -caps -cydir -doc -imapc -kerberos -ldap -lucene -mbox -mdbox -pop3c -postgres -sdbox -selinux -solr -sqlite -static-libs -suid -vpopmail) Homepage: http://www.dovecot.org/ Description: An IMAP and POP3 server written with security primarily in mind [I] mail-filter/dspam Available versions: 3.10.2-r1 {clamav daemon debug +domain-scale +hash large-scale ldap mysql postgres small-scale sqlite static-libs syslog user-homedirs virtual-users} Installed versions: 3.10.2-r1(10:08:06 14/11/2013)(clamav daemon domain-scale mysql syslog virtual-users -debug -hash -large-scale -ldap -postgres -small-scale -sqlite -static-libs -user-homedirs) Homepage: http://dspam.sourceforge.net/ Description: A statistical-algorithmic hybrid anti-spam filter DSPAM binary is owned by dspam (chmod u+s) : -r-s--x--- 1 dspam dspam 96K 14 nov. 10:08 /usr/bin/dspam And all the necessary users are trusted by DSPAM : Trust root Trust dspam Trust apache Trust mail Trust mailnull Trust smmsp Trust daemon Trust vmail Trust dovecot Trust postfix Any idea ? Thanks, -- Guillaume Hilt

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[Dovecot] Dovecot panic during replication
by IT geek 31 15 Nov '13

15 Nov '13

I'm seeing the following errors on my Dovecot box when trying to replicate: Nov 15 18:44:46 server1 dovecot: dsync-server(mark): Panic: file mbox-lock.c: line 799 (mbox_lock): assertion failed: (lock_type == F_RDLCK || mbox->mbox_lock_type != F_RDLCK) Nov 15 18:44:46 server1 dovecot: dsync-server(mark): Fatal: master: service(doveadm): child 21571 killed with signal 6 (core not dumped - set service doveadm { drop_priv_before_exec=yes }) And on the target I see: Nov 15 17:47:02 server2 dovecot: dsync-server(mark): Error: read( server1.mdb.eu.com) failed: EOF Does anyone know what is causing this? I help to solve this before I can put it live :-( Here's my dovecot -n from server1: # 2.2.7: /usr/pkg/etc/dovecot/dovecot.conf # OS: NetBSD 5.2 cobalt auth_mechanisms = plain login doveadm_password = secret doveadm_port = 12345 listen = 192.168.1.1 mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_plugins = " notify replication" passdb { driver = passwd } plugin { mail_replica = tcp:server2.mdb.eu.com } protocols = imap service aggregator { fifo_listener replication-notify-fifo { mode = 0600 user = vmail } unix_listener replication-notify { mode = 0600 user = vmail } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service doveadm { inet_listener { port = 12345 } } service imap-login { inet_listener imap { port = 0 } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 } } ssl_cert = </etc/openssl/certs/mail.mdb.eu.com.crt ssl_key = </etc/openssl/private/mail.mdb.eu.com.key userdb { driver = passwd } protocol lda { postmaster_address = postmaster(a)example.com } Thanks.

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