- dovecot - dovecot.org

[Dovecot] OT - small hd recommendation
by Daniel L. Miller 02 Sep '11

02 Sep '11

A little OT - but I've seen a few opinions voiced here by various admins and I'd like to benefit. Currently running a single combined server for multiple operations - fileserver, mailserver, webserver, virtual server, and whatever else pops up. Current incarnation of the machine, after the last rebuild, is an AMD Opteron 4180 with a Supermicro MB using ATI SB700 chipset - which means it supports SATA 3.0. Current storage is one o/s drive, and a 4-drive RAID10 array. The RAID10 is using the Linux softraid via mdadm. The drives are Seagates - ST3160811AS. So it's 320GB of storage, and SATA 1.5. I'm seeing some warnings & errors in my logs & dmesg - and Google tells me this can the result of several factors, including the hard drives. I haven't seen any SMART warnings as yet - but I am getting a little nervous and thinking about upgrading the storage. At this time, I'm just interested in recommendations for hard drives & partitioning strategy. At the time I created the RAID10 array - I was still in the early stages of learning these technologies (not that I know that much more now!) so I probably didn't take advantage of any of the advanced settings such as stripe size, cluster size, etc. I am using XFS. As part of the potential upgrade, I'm considering changing to RAID6 - seems a bit more efficient use of space. I see no reason for SSD - I think a set of reasonable 7200rpm drives should be just fine. What I don't know is, compared to my current 4 drive RAID10 with SATA 1.5, would even a single SATA 3 drive be comparable in terms of seek performance? Should I stick with the RAID-10? -- Daniel

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[Dovecot] thunderbird and subscriptions with sieve
by Kristen J. Webb 02 Sep '11

02 Sep '11

Hi All, I'm a newbie trying to move mail out of my ISP onto a ubuntu (lucid) dovecot 1.2.9 server. Is there any way to automatically add folders created by sieve (GNU Mailutils 2.1) to the subscriptions file for a user? I'm currently testing spam, and if sieve created the folder with the first message, the thunderbird user does not see the new folder. Even more interesting, if the user then tries to create the Spam directory it thunderbird seems to quietly ignore the request and the user still cannot see the folder, but I digress... I can manually subscribe with thunderbird, but this won't scale for more complex sieve later by making the user responsible for finding everything. I can turn off subscription view in advanced settings on thunderbird, but we are trying to wean ourselves of of individual mail clients and I don't want to have to test this everywhere. Many thanks in advance! Kris -- Mr. Kristen J. Webb Teradactyl LLC. PHONE: 1-505-242-1091 EMAIL: kwebb(a)teradactyl.com VISIT: http://www.teradactyl.com Home of the True incremental Backup System

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[Dovecot] dovecot imap permission denied
by Daminto Lie 02 Sep '11

02 Sep '11

Hi, I received the following error from mail.log Aug 31 13:50:57 server1 dovecot: IMAP(mike_lee): mkdir(/home/mike_lee/Maildir/.INBOX.Sent/cur) failed: Permission denied (euid=1004 egid=1003(companyusergroup) missing +w perm: /home) What I have tried to do is changing the permission for /home by typing "sudo chmod 755 /home" and this does not work. What does it mean by missing +w perm: /home? and wonder how to get around it? This is what I have in main.cf from Postfix myhostname = server1 myorigin = /etc/mailname relayhost = mynetworks = 127.0.0.0/8, 192.168.1.0/24 inet_interfaces = all inet_protocols = ipv4 home_mailbox = Maildir/ smtpd_sasl_type = dovecot #smtpd_sasl_path = private/auth-client smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination #smtpd_sender_login_maps = ldap:/etc/postfix/ldap_senders.cf broken_sasl_auth_clients = yes #dovecot_destination_recipient_limit = 1 debug_peer_list = 127.0.0.1 debug_peer_level = 5 Any help is very much appreciated. Thank you

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[Dovecot] sieve vacation problem (discarding)
by Lampa 02 Sep '11

02 Sep '11

Hello, i'm using 1.2.15 version on debian. I'm getting "discarding vacation response for message implicitly delivered to <user(a)domain.com>" I have domain domain.com which has alias do-main.com. When sending email to main domain (domain.com) seems to be ok, but for aliased domain getting discard ;( I tried "scary things" from http://www.dovecot.org/list/dovecot/2009-August/042360.html require ["vacation", "variables", "envelope"]; if envelope :matches "to" "*" { set "envto" "${1}"; vacation :days 1 :addresses ["${envto}"] :subject "Out of order..." "Body message"; } Is implemented :addresses ["*"] in later 1.2 version ? Where is problem? What i must to do to get this thing working ? Upgrading to version 2.x isn't solution for me now. Thank you for advices and help. -- Lampa

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Re: [Dovecot] Password query returned multiple matches
by Arne K. Haaje 01 Sep '11

01 Sep '11

Wednesday 31. August 2011 11.44.03 skrev Simon Brereton : > > -----Original Message----- > > From: Timo Sirainen [mailto:tss@iki.fi] > > > > On 31.8.2011, at 18.19, Simon Brereton wrote: > > > Aug 30 22:41:45 mail dovecot: auth-worker(default): > > sql(sbrereton(a)domain.co.uk,64.88.168.84): Password query returned > > multiple matches > > .. > > > > > password_query = SELECT EmailAdd AS user, Password AS password, > > > > concat('/var/spool/mail/virtual/',MailDirLoc) as userdb_home, 999 as > > userdb_uid, 115 as userdb_gid FROM MailAccounts WHERE Username='%u' > > AND active = '1'; > > > > > Since the EmailAdd is unique I don't see how it can return multiple > > > > matches. > > > > You're querying with Username, not with EmailAdd, and apparently > > there are multiple rows where Username='sbrereton(a)domain.co.uk'. > > Well, what do you know - there are two Usernames that at the same! I have > no idea how that happened. You could change or add the index for Username column to UNIQUE. That will ensure it does not happen again :) Arne -- Arne K. Haaje - Dr Linux http://www.drlinux.no/ ::: arne(a)drlinux.no LinkedIn: http://no.linkedin.com/pub/arne-haaje/27/189/bb

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[Dovecot] Segmentation fault in dovecot director lmtp service
by Reinhard Vicinus 01 Sep '11

01 Sep '11

Hi, the lmtp service of our dovecot director installation quits with a segmentation fault if a lot of mails are simultaneously delivered. For example if the postfix mailqueue is filled (for whatever reason) and postqueue -f is run the lmtp service quits with a segmentation fault: Program terminated with signal 11, Segmentation fault. #0 o_stream_cork (stream=0x0) at ostream.c:75 75 if (unlikely(stream->closed)) (gdb) backtrace #0 o_stream_cork (stream=0x0) at ostream.c:75 #1 0x00007fa6e6af45d9 in lmtp_client_send_more (client=0x2435870) at lmtp-client.c:596 #2 0x0000000002434170 in ?? () #3 0x00000000004070d9 in proxy_send_more (proxy=0x2435870) at lmtp-proxy.c:390 #4 lmtp_proxy_data_input (proxy=0x2435870) at lmtp-proxy.c:444 #5 0x00007fa6e6af456f in lmtp_client_send_data (client=0x24347a0) at lmtp-client.c:306 #6 0x0000000002434f98 in ?? () #7 0xffffffffe6af73c5 in ?? () #8 0x0000000002434840 in ?? () #9 0x0000000000000000 in ?? () I don't have any ideas why the stream is 0. The configuration of the dovecot director installation is attached. Please let me know if i shall provide any more information or test something. Kind regards Reinhard

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[Dovecot] Crash in director/lmtp-proxy (lmtp_proxy_output_timeout)
by Jan-Frode Myklebust 01 Sep '11

01 Sep '11

FYI, we saw one panic on our director/lmtp-proxy yesterday. It's running dovecot v2.0.13, so it very well might have been fixed already.., but here it is anyway: Aug 31 11:33:31 loadbalancer1 dovecot:: lmtp(4119): Panic: file lmtp-proxy.c: line 370 (lmtp_proxy_output_timeout): assertion failed: (proxy->data_input->eof) Aug 31 11:33:31 loadbalancer1 dovecot:: lmtp(4119): Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0 [0x3aabc3bb70] -> /usr/lib64/dovecot/libdovecot.so.0 [0x3aabc3bbc6] -> /usr/lib64/dovecot/libdovecot.so.0 [0x3aabc3b083] -> dovecot/lmtp [0x406c90] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handle_timeouts+0xcd) [0x3aabc46a8d] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x68) [0x3aabc47a48] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x2d) [0x3aabc466fd] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x3aabc34fe3] -> dovecot/lmtp(main+0x144) [0x404034] -> /lib64/libc.so.6(__libc_start_main+0xf4) [0x32ae81d994] -> dovecot/lmtp [0x403e39] Aug 31 11:33:31 loadbalancer1 dovecot:: master: Error: service(lmtp): child 4119 killed with signal 6 (core dumps disabled) On postfix side at the same time, we saw a few different messages about: postfix/lmtp[5178]:: 849FD1C024: lost connection with loadbalancers.example.com[192.168.42.15] while sending end of data -- message may be sent more than once so I suspect this crash took down all active lmtp-proxyed connections. -jf

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[Dovecot] lmtp bouncing -- Invalid parameters (in reply to MAIL FROM command)
by Jan-Frode Myklebust 01 Sep '11

01 Sep '11

I just configured postfix' virtual_transport to point at my dovecot director, but am seeing occational problems like this: Aug 31 11:50:06 smtpgw postfix/lmtp[5339]: 69E2F5410D: to=<email(a)example.net>, relay=loadbalancers.example.net[192.168.42.17]:24, delay=0.15, delays=0.14/0.01/0/0, dsn=5.5.4, status=bounced (host loadbalancers.example.net[192.168.42.17] said: 501 5.5.4 Invalid parameters (in reply to MAIL FROM command)) but can't find anything interesting in the dovecot logs.. Anybody have ideas for how to make postfix play nice with dovecot's lmtp ? smtpgws% rpm -q postfix postfix-2.3.3-2.1.el5_2 loadbalancers% rpm -q dovecot dovecot-2.0.13-2 backendmailstorers% rpm -q dovecot dovecot-2.0.13-2 -jf

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[Dovecot] Proprietary mail storage.
by Alex Cherniak 01 Sep '11

01 Sep '11

I have a large existing read-only collection of mails packaged in individual zip files as <rfc822 file>+<some additional info>. Is it possible (and how difficult) to create a proprietary plugin (like gzip) which will open a zip file, extract mail and pass it back to Dovecot? Where do I start? If plugin is not the right approach, what is? Another question is how will this affect Dovecot performance and how to avoid any significant degradation. Any help is appreciated.Thanks.

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Re: [Dovecot] Multiple domains to one inbox and temporary redirects...
by Nick Rosier 01 Sep '11

01 Sep '11

Simon Brereton wrote: > Hi > > Can anyone point me to a howto to arrange for multiple domains to deliver to one inbox with Dovecot? For example, user1(a)example.com and user1(a)example.net should both be delivered to /var/spool/mail/virtual/example.net/user1 > > Currently, I have the dovecot LDA set as: > > dovecot unix - n n - - pipe > flags=DRhu user=mailsystem argv=/usr/lib/dovecot/deliver -f ${sender} -d ${user}@${nexthop} > > > and in dovecot.conf: > > mail_location: maildir:/var/spool/mail/virtual/%d/%n > > For some domains only, I need to override that mail_location. > > > Related to that, when user1 leave and user2 would like to receive user1's email, how can I get it so that email to user1(a)example.com is delivered to user2(a)example.com? Previously when I was using Postfix to deliver the mails, I could change the maildirloc in the DB - but I’m not sure how to accomplish this with dovecot LDA. > > I'm using Postfixadmin to manage users and have server alias-domains. All mail sent to an alias-domain is delivered to the other domain. Quite easy if you've got postfixadmin already setup. Otherwise I think you could configure virtual_alias_maps in postfix to something like hash:virtual_domains virtual_domains: @example.net @example.com N.

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