- dovecot - dovecot.org

[Dovecot] Thunderbird caching problem
by Chris Cappuccio 03 Sep '11

03 Sep '11

Using a fairly simple dovecot config (which obviously needs some max limit tweaking) we have problems with IMAP synchronization between thunderbird clients. Two TB clients in the same IMAP mailbox will, from time to time, show different views of the same INBOX folders, when TB caching is enabled. The only fix is to right-click on the folder, go to "Properties" and use the "Repair Folder" option which repairs the local TB .msf cache file. Is there any server-side fix/workaround that would keep TB from regularly going out-of-sync ? This happens with TB3 and newer versions, in concert with either dovecot 1 or 2. The obvious fix is to disable TB local caching, which unfortunately also disables certain search features and can be a pain for large mailboxes. # dovecot -n # 2.0.13: /etc/dovecot/dovecot.conf doveconf: Warning: service auth { client_limit=4096 } is lower than required under max. load (7168) doveconf: Warning: service anvil { client_limit=2048 } is lower than required under max. load (3075) # OS: OpenBSD 5.0 amd64 ffs auth_default_realm = dovecot.org auth_mechanisms = plain digest-md5 cram-md5 apop auth_username_translation = :@ default_client_limit = 2048 default_internal_user = _dovecot default_login_user = _dovenull default_process_limit = 1024 disable_plaintext_auth = no first_valid_gid = 125 first_valid_uid = 125 mail_location = maildir:/mail/%d/%n/ managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date mbox_write_locks = fcntl mmap_disable = yes passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_global_path = /etc/dovecot/default.sieve } protocols = imap pop3 lmtp sieve service auth { unix_listener auth-userdb { user = mail } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } ssl_cert = </etc/balls/balls-cert.pem ssl_key = </etc/balls/balls-key.pem userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = sieve } protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags mail_max_userip_connections = 50 } protocol pop3 { mail_max_userip_connections = 50 pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_save_uidl = yes pop3_uidl_format = %v-%u }

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[Dovecot] Control of \Seen flags dovecot 1.2.9
by Kristen J. Webb 03 Sep '11

03 Sep '11

Hi All, I have public mailboxes working with ACL's now, and I'm testing the ACL behavior. I've added lrws to two users so they can check off the messages they have read. I'm using CONTROL and INDEX in the location parameter for the namespace. It appears that if one user marks a message as read, all users see that message read. Is there any way to configure dovecot, so that each user maintains their own view of read messages? Relevant config (i think): namespace private { separator = / prefix = location = maildir:/home/vmail/%d/%n/Maildir:LAYOUT=fs inbox = yes } namespace public { separator = / prefix = Public/ location = maildir:/home/vmail/Public:LAYOUT=fs:CONTROL=/home/vmail/%d/%n/Maildir/Public:INDEX=/home/vmail/%d/%n/Maildir/Public subscriptions = no } -- 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] Can't got mail by OUTLOOK for a half million mails account
by Dong Ding 02 Sep '11

02 Sep '11

Hi, I used postfix always_bcc to backup mail. And up to now the backup account has half million mails in cur/, when I first time tried to receive the mail by outlook, it failed , no responds. Does any one has some good idea to deal with this problem? Thanks

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[Dovecot] Kerberos GSSAPI - proper item name in keytab
by Stanislav Klinkov 02 Sep '11

02 Sep '11

Hello, ALL. I am trying to organize a transparent single sign-on concept for my Active Directory users into Dovecot via IMAP. On the user's desktop I use Thunderbird 6.0 as a mail client (MUA), Windows XP as an operating system. Domain is controlled by Windows 2008 Server SP2 with Active Directory. I have installed on my Mail server Debian GNU/Linux 6.0.2 (Squeeze) and Dovecot 2.0.13 from official "wheezy" repositories of it with all dependencies. I ran into in a problem with generating proper "/etc/krb5.keytab" file for successful kerberos authentication against AD controller. I has performed all the steps described in official dovecot wiki here: http://wiki2.dovecot.org/Authentication/Kerberos I have generated a service ticket with name "imap/efim.test.local(a)MYORG.LAN" exactly as described in wiki. ("MYORG.LAN" is my kerberos realm.) But this does not work. I see in debug logs something like this: ******** main service logs ******** Aug 29 16:05:14 auth: Info: gssapi(?,192.168.4.12): While processing incoming data: Unspecified GSS failure. Minor code may provide more information Aug 29 16:05:14 auth: Info: gssapi(?,192.168.4.12): While processing incoming data: Wrong principal in request ************************************* ******** auth debug logs ********* Aug 29 16:05:14 auth: Debug: gssapi(?,192.168.4.12): Obtaining credentials for imap(a)efim.test.local Aug 29 16:05:14 auth: Debug: client out: CONT 1 Aug 29 16:05:14 auth: Debug: client in: CONT<hidden> Aug 29 16:05:16 auth: Debug: client out: FAIL 1 ************************************* But (!). If I define << auth_gssapi_hostname = "$ALL" >> instead of << auth_gssapi_hostname = efim.test.local >> then everything works fine. I decided to find out where is the problem, so I dig into source code of gssapi module, "mech-gssapi.c". For versions 2.0.13 and 2.0.14 of dovecot I see there the following: ********* mech-gssapi.c ********* static OM_uint32 obtain_service_credentials(struct auth_request *request, gss_cred_id_t *ret_r) /* blah-blah-blah */ principal_name = t_str_new(128); str_append(principal_name, service_name); str_append_c(principal_name, '@'); str_append(principal_name, request->set->gssapi_hostname); auth_request_log_debug(request, "gssapi", "Obtaining credentials for %s", str_c(principal_name)); inbuf.length = str_len(principal_name); inbuf.value = str_c_modifiable(principal_name); major_status = gss_import_name(&minor_status, &inbuf, GSS_C_NT_HOSTBASED_SERVICE, &gss_principal); ********************************* So, according to source code, Dovecot tries to find in krb5.keytab a principal named "imap@hostname". However wiki says to create the principal named "imap/hostname@REALM". Please, clarify where is the error: in source code, in wiki, or I have misunderstood something. Respectfully, Stanislav Klinkov.

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[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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[Dovecot] sorting order changed during migration from courier
by Micah Anderson 01 Sep '11

01 Sep '11

Hello, I've been working to migrate to dovecot (debian stable: 1:1.2.15-7) from courier (debian old-stable: 4.4.0-2). I've setup everything and migrated a test user over to the new system, and ran the courier-dovecot-migrate.pl script. The user is using alpine (the free version of pine) and their sort order changed on move to dovecot. Originally it was the default in alpine, which is to sort based on arrival. If he changes the sort order in alpine to sort based on date, then things are back to how he expects it. I noticed that there are no known issues with pine (http://wiki.dovecot.org/Clients#Pine) Ideally, I would prefer if all the users who are migrated aren't presented with a different sort order than they were used to, as the support burden will be quite high. What is it about this migration that could have caused that, and more importantly, how can I fix it? I moved the mail from the original system to this system via rsync -a. The old system was an i686 machine and ext3, this new one is amd64 and ext4. thanks for any ideas! micah # dovecot -n # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.2 protocols: imap imaps pop3 pop3s disable_plaintext_auth: no verbose_ssl: yes 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 login_greeting: howdy, ready. login_processes_count: 10 login_max_processes_count: 256 first_valid_uid: 8 last_valid_uid: 8 first_valid_gid: 8 last_valid_gid: 8 mail_uid: 8 mail_gid: 8 mail_location: maildir:~/ maildir_copy_preserve_filename: yes maildir_very_dirty_syncs: yes mbox_write_locks: fcntl dotlock mail_executable(default): /maildir/postlogin_imap mail_executable(imap): /maildir/postlogin_imap mail_executable(pop3): /maildir/postlogin_pop mail_process_size: 512 mail_plugins(default): expire quota imap_quota mail_plugins(imap): expire quota imap_quota mail_plugins(pop3): expire quota 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): tb-extra-mailbox-sep delay-newmail imap_client_workarounds(imap): tb-extra-mailbox-sep delay-newmail imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh namespace: type: private separator: . prefix: INBOX. inbox: yes list: yes subscriptions: yes lda: postmaster_address: postmaster(a)riseup.net auth default: default_realm: riseup.net verbose: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch dict: expire: mysql:/etc/dovecot/dovecot-dict-expire.conf --

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[Dovecot] mail spool filesystem
by Julio Cesar Covolato 31 Aug '11

31 Aug '11

Hi! I´m about to migrate a system whith 5000 accounts whith (~ 500GB) from "postfix/courier-imap/maildrop/mysql" to a new hardware whith "postfix/dovecot/dovecot/mysql". I´ll make a separate partition (raid 1) for the mail spool (/var/spool/vmail) and want to now what type of filesystem to use on it to increase performance. I read that XFS is a good choice, but is not too reliable... Any sugestions? Thanks in advance, -- ----------------------------- _ Julio Cesar Covolato 0v0<julio(a)psi.com.br> /(_)\ F: 55-11-3129-3366 ^ ^ PSI INTERNET -----------------------------

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[Dovecot] Multiple domains to one inbox and temporary redirects...
by Simon Brereton 31 Aug '11

31 Aug '11

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. Again, any pointers would be welcome. Thanks. Simon

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Re: [Dovecot] Password query returned multiple matches
by Timo Sirainen 31 Aug '11

31 Aug '11

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'.

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[Dovecot] Password query returned multiple matches
by Simon Brereton 31 Aug '11

31 Aug '11

Hi After successfully setting up dovecot, I see this error in the logs. 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 Aug 30 22:41:52 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<sbrereton(a)domain.co.uk>, method=PLAIN, rip=64.88.168.84, lip=127.0.0.1, TLS Can you tell me what it means or what I should look for? In my dovecot-sql.conf I have this query: 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. Thanks. Simon

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[Dovecot] [PATCH] Indexing mail attachments with Dovecot + Solr
by Antonio Perez-Aranda 31 Aug '11

31 Aug '11

Indexing mail attachments with Dovecot + Solr. This patch has been tested with these versions: * dovecot 2.0.9 * apache-solr 1.4.1 This is a patch for the fts-solr plugin (that indexes mail messages for Dovecot with Solr). In main stream, the plugin does not index attachments; With this patch, you can index mails and their attachments (pdf, docs, openoffice docs...) . You can get others goodies with this patch and the Solr Config provided, like Synonyms and Stemming (Spanish by default). Attachment indexing is provided by Solr Cell and Tika (ExtractingRequestHandler) * http://wiki.apache.org/solr/ExtractingRequestHandler Synonyms and Stemming are provided by SnowballPorterFilterFactory from Solr Language Analysis: * http://wiki.apache.org/solr/LanguageAnalysis We have tested Solr with Tomcat and Jetty. Tomcat is better to handle UTF-8 and bigger POSTS. Attachments file format supported * http://tika.apache.org/0.9/formats.html At present, attachments in attachments (like, for example, attachments in fordwarded "eml" attachments) are not indexed. Also, keep in mind that there are many types of files, and many variants of the same file type. Per Example, some pdf files are "not readable" by solr pdf reader. Config: There are two new options added to fts_solr property: * index-attachments Enable attachments indexing. * manual-update Avoid index on user search. You can trigger indexing using doveadm search or doveadm index commands. There is a new property for the section plugin to filter the mimetypes that you want to index. * fts_solr_mimetype files with this mimetype will be sent to solr. After integrating solr directory in your solr config, and building Dovecot with fts-solr support and with fts-solr-attachments-r885.patch applied, you can update your dovecot config by adding to your dovecot.conf: ... mail_pluings = $mail_plugins fts fts_solr plugin { fts = solr fts_solr = url=http://solrhost:8983/solr/ break-imap-search index-attachments fts_solr_mimetype = application/x-pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document } ... -- Antonio Pérez-Aranda Alcaide aperezaranda(a)yaco.es Yaco Sistemas S.L. http://www.yaco.es/ C/ Rioja 5, 41001 Sevilla Teléfono +34 954 50 00 57 Fax +34 954 50 09 29

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[Dovecot] auth: Error: LDAP: Connection lost to LDAP server, reconnecting
by Angel L. Mateo 31 Aug '11

31 Aug '11

Hello, I continue debugging my problems with my update to dovecot 2.x :-( I have dovecot 2.0.13 running in ubuntu 10.04 (lucid) x64. My users are in a ldap directory. The problem is that I have a lot of errors like: Aug 24 23:07:32 myotis28 dovecot: auth-worker(default): LDAP: Connection lost to LDAP server, reconnecting I have seen in the mail list a patch for 1.2 (http://hg.dovecot.org/dovecot-1.2/rev/355d5a40f7a7) to ignore these logs when the disconnection is because of idle timeouts. As far as I could see in this patch and 2.0.13 source code, this patch is already applied in 2.0. So I guess that the disconnection is for other problem, isn't it? -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información _o) y las Comunicaciones Aplicadas (ATICA) / \\ http://www.um.es/atica _(___V Tfo: 868887590 Fax: 868888337

2 11

Re: [Dovecot] : error while loading shared libraries: libdovecot.so.0 (arm cross compile)
by Joseph Tam 31 Aug '11

31 Aug '11

"Stephen Feyrer" <stephen.feyrer(a)btinternet.com> writes: > I've made a new attempt at build Dovecot. The build and then install > processes appeared to work find. Then when I try to run Dovecot it > reports the error: > > /share/MD0_DATA/optware/opt/sbin/dovecot: error while loading shared > libraries: libdovecot.so.0: cannot open shared object file: No such file > or directory In cases like this where I have no clue where an executable is trying to load a library from, run a process trace tool (strace, truss, etc.) and you can see all the library run paths it's trying before failing. Joseph Tam <jtam.home(a)gmail.com>

3 7

[Dovecot] Message flags
by Ralf Hildebrandt 30 Aug '11

30 Aug '11

How do I set message flags in sieve rules in such a way that e.g. Thunderbird is displaying the mail as "important"? Is there a list of hwo flags are interpreted by different IMAP clients? -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt(a)charite.de | http://www.charite.de

5 5

[Dovecot] Sub-folder outside of the mail store
by Simon Brereton 30 Aug '11

30 Aug '11

Hi How do I create an IMAP folder that links to a folder outside of the mail store? For example, I have all domains under /var/spool/mail/virtual/domains.net/ and users under /var/spool/mail/virtual/domains.net/user Amavis delivers quarantine mail to /var/spool/mail/quarantine I would like one user (postmaster) to have a folder /var/spool/mail/virtual/domains.net/postmaster/.Quarantine and link it to that folder - is that possible? Is it safe? The client the postmaster uses can then reinject and deliver the mail if need be (i.e. it's safe or the attachment has been stripped). Thanks. Simon

1 0

Re: [Dovecot] File Permissions and delivery
by Timo Sirainen 30 Aug '11

30 Aug '11

On Mon, 2011-08-29 at 11:14 -0400, Simon Brereton wrote: > Aug 29 15:59:14 mail dovecot: deliver(simon(a)lydiard.net): stat(/var/spool/mail/virtual/domain.net/simon/tmp) failed: Permission denied (euid=999(mailsystem) egid=115(mailsystem) missing +x perm: /var/spool/mail/virtual) > > Even if I make EVERTHING under /var/spool/mail/virtual/* owned by mailsystem:mailsystem - and reload postfix and restart doevcot. But you didn't change the /var/spool/mail/virtual directory itself? (Like the error message says.)

2 1

[Dovecot] Virtual user and post-login 2.0.13
by Pelle Svensson 30 Aug '11

30 Aug '11

Hi I tried several variants of suggestions but I can't get it working dovecot-info.log: =========== Aug 25 17:37:48 imap-login: Info: Login: user=<vuser>, method=PLAIN, rip=192.168.1.xx, lip=192.168.1.xx, mpid=11264 Aug 25 17:37:48 imap(vuser): Info: Post-login script denied access to user vuser dovecot.log ======== Aug 25 17:31:28 imap-postlogin: Error: script-login: Error: user pmp(a)bredband.net: Error reading configuration: net_connect_unix(/var/run/dovecot/config) failed: Permission denied Aug 25 17:31:28 imap-postlogin: Error: script-login: Fatal: Internal error occurred. Refer to server log for more information. Aug 25 17:31:28 log: Error: service(imap-postlogin): child 11082 returned error 89 (Fatal failure) dovecot.conf ======== protocols = imap pop3 base_dir = /var/run/dovecot/ log_path = /var/log/dovecot.log info_log_path = /var/log/dovecot-info.log ssl = no # v1.2+, for older versions use: ssl_disable = yes disable_plaintext_auth = no mail_location = maildir:/home/fetchmail/mailroot/dummy pop3_uidl_format = %08Xu%08Xv !include conf.d/*.conf !include_try local.conf mail_uid=500 mail_gid=500 auth_verbose = yes auth_debug=yes auth_debug_passwords=yes mail_debug=yes # Optional tried with this!!! service config { unix_listener config { group = dovecot mode = 0660 } } service imap { # tell imap to do post-login lookup using a socket called "imap-postlogin" executable = imap imap-postlogin # Optional tried with this!!! user=dovecot } # The service name below doesn't actually matter. service imap-postlogin { # all post-login scripts are executed via script-login binary executable = script-login /home/fetchmail/dovecot-postlogin.sh # the script process runs as the user specified here (v2.0.14+): # Optional tried with this!!! # user=dovecot # user = $default_internal_user # this UNIX socket listener must use the same name as given to imap executable # Optional tried with this!!! #unix_listener imap-postlogin { #} } users ==== vuser:{PLAIN}pass:500:500::/home/fetchmail::userdb_mail=maildir:/home/fetchmail/mailroot/vuser-root allow_nets=192.168.1.0/24 ls -l /home/fetchmail/dovecot-postlogin.sh -rwxrwxrwx. 1 dovecot root 108 Aug 25 17:08 dovecot-postlogin.sh Any suggestions are very welcome!! /Thanks

3 4

[Dovecot] Dovecot service needs a second restart after boot - euid is not dir owner
by Pelle Svensson 30 Aug '11

30 Aug '11

After reboot dovecot service need a restart. dovecot service starts as S99dovecot with only S99rc-local coming up. After boot following error is filled up in dovecot.log Aug 28 11:33:12 imap(vuser): Error: open(/home/fetchmail/mailroot/map/dovecot.index.log) failed: Permission denied (euid=500(vuser) egid=500(vuser) missing +r perm: /home/fetchmail/mailroot/map/dovecot.index.log, euid is not dir owner) Aug 28 11:33:12 imap(vuser): Error: file_dotlock_create(/home/fetchmail/mailroot/map/dovecot-uidlist) failed: Permission denied (euid=500(fetchmail) egid=500(fetchmail) missing +w perm: /home/fetchmail/mailroot/map, euid is not dir owner) Aug 28 11:33:12 imap(vuser): Error: open(/home/fetchmail/mailroot/map/dovecot-uidlist) failed: Permission denied After Linux has booted you just issue service dovecot restart And everything is back to normal and no error. Running on a Pentium 800MHz not too fast pc

2 2

[Dovecot] ldap authentication
by Daminto Lie 30 Aug '11

30 Aug '11

Hi, I have got Postfix, Dovecot IMAP and squirrelmail up and running on my ubuntu server 10.04 for a testing purpose. My question is in order to be able to login, do I need to create user accounts for each users on the server? I have about 20 users at the moment, and it's going to take time. I was thinking of using LDAP and have the dovecot authentication through LDAP. This way, I do not have to create accounts for 20 users on the server. The dovecot can just authenticate users by looking them up against the LDAP. I wonder if anyone would be able to share some guides as to how to set it up to work with Postfix and Dovecot. Thank you

1 0

[Dovecot] dovecot w/ libwrap on fbsd
by Gelu Lupas 30 Aug '11

30 Aug '11

Dovecot with libwrap doesn't work on FreeBSD for some reason or another. I have these lines in my /etc/hosts.allow: ALL: LOCAL 127.0.0.1: allow pop3: ALL: allow ALL: ALL: deny Yet when you try to telnet to localhost, port 110 this is what happens: Aug 29 22:48:38 dodo dovecot: pop3-login: Error: connect(tcpwrap) failed: Permission denied I also tried auth_debug=yes to see what's wrong but it only shows the processes which handled the connection, no extra info with the reason why it failed. Here's the config: # 2.0.13: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 7.4-RELEASE i386 auth_mechanisms = plain login base_dir = /var/run/dovecot/ disable_plaintext_auth = no dotlock_use_excl = no first_valid_uid = 1000 listen = * login_access_sockets = tcpwrap login_greeting = login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c mail_location = mbox:~/Mail/:INBOX=/var/mail/%u mail_log_prefix = "%Us(%u): " mail_privileged_group = mail maildir_copy_with_hardlinks = no passdb { driver = pam } protocols = pop3 service auth { executable = /usr/local/libexec/dovecot/auth unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root vsz_limit = 64 M } service imap-login { chroot = login client_limit = 128 process_limit = 32 process_min_avail = 3 service_count = 1 user = dovecot vsz_limit = 32 M } service imap { drop_priv_before_exec = no process_limit = 128 vsz_limit = 256 M } service pop3-login { chroot = login client_limit = 128 process_limit = 32 process_min_avail = 3 service_count = 1 user = dovecot vsz_limit = 32 M } service pop3 { drop_priv_before_exec = no process_limit = 128 vsz_limit = 256 M } service tcpwrap { unix_listener login/tcpwrap { group = $default_login_user mode = 0600 user = $default_login_user } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_cipher_list = ALL:!LOW ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } verbose_proctitle = yes protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } protocol lda { postmaster_address = postmaster(a)europrima.ro sendmail_path = /usr/sbin/sendmail }

2 1

[Dovecot] : error while loading shared libraries: libdovecot.so.0 (arm cross compile)
by Stephen Feyrer 29 Aug '11

29 Aug '11

Hi. I've made a new attempt at build Dovecot. The build and then install processes appeared to work find. Then when I try to run Dovecot it reports the error: /share/MD0_DATA/optware/opt/sbin/dovecot: error while loading shared libraries: libdovecot.so.0: cannot open shared object file: No such file or directory To get a better idea of what's going on, I added --enable-devel-checks at ./configure and then ran gdb: # gdb --args dovecot -F GNU gdb 6.8 [snip] This GDB was configured as "arm-none-linux-gnueabi"... (no debugging symbols found) (gdb) run Starting program: /share/MD0_DATA/optware/opt/sbin/dovecot -F (no debugging symbols found) /share/MD0_DATA/optware/opt/sbin/dovecot: error while loading shared libraries: libdovecot.so.0: cannot open shared object file: No such file or directory Program exited with code 0177. (gdb) bt full No stack. (gdb) quit By the way on a separate but related note, adding --enable-maintiner-mode introduced a new problem also relating to libdovecot.so.0.0.0 I'll refer to that in the post script. # ls -alh /opt/lib/dovecot/ drwxr-xr-x 8 admin administ 4.0k Aug 27 16:31 ./ drwxr-xr-x 37 admin administ 16.0k Aug 27 16:27 ../ drwxr-xr-x 2 avahi avahi 4.0k Nov 26 2009 .debug/ drwxr-xr-x 2 admin administ 4.0k Aug 27 16:27 auth/ drwxr-xr-x 2 admin administ 4.0k Aug 27 16:31 doveadm/ -rw-r--r-- 1 admin administ 678 Aug 27 16:27 dovecot-config drwxr-xr-x 3 admin administ 4.0k Aug 26 18:01 imap/ drwxr-xr-x 2 admin administ 4.0k Aug 26 18:01 lda/ -rw-r--r-- 1 admin administ 527.6k Jan 6 2011 lib01_acl_plugin.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 lib01_acl_plugin.la* -rwxr-xr-x 1 admin administ 56.3k Aug 27 16:27 lib01_acl_plugin.so* -rw-r--r-- 1 admin administ 70.5k Jan 6 2011 lib02_imap_acl_plugin.a -rwxr-xr-x 1 admin administ 1.1k Aug 27 16:27 lib02_imap_acl_plugin.la* -rwxr-xr-x 1 admin administ 13.1k Aug 27 16:27 lib02_imap_acl_plugin.so* -rw-r--r-- 1 admin administ 69.9k Jan 6 2011 lib02_lazy_expunge_plugin.a -rwxr-xr-x 1 admin administ 1.1k Aug 27 16:27 lib02_lazy_expunge_plugin.la* -rwxr-xr-x 1 admin administ 13.0k Aug 27 16:27 lib02_lazy_expunge_plugin.so* -rw-r--r-- 1 admin administ 51.3k Jan 6 2011 lib05_snarf_plugin.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 lib05_snarf_plugin.la* -rwxr-xr-x 1 admin administ 7.4k Aug 27 16:27 lib05_snarf_plugin.so* -rw-r--r-- 1 admin administ 443.4k Jan 6 2011 lib10_quota_plugin.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 lib10_quota_plugin.la* -rwxr-xr-x 1 admin administ 51.5k Aug 27 16:27 lib10_quota_plugin.so* -rw-r--r-- 1 admin administ 23.6k Jan 6 2011 lib11_imap_quota_plugin.a -rwxr-xr-x 1 admin administ 1.1k Aug 27 16:27 lib11_imap_quota_plugin.la* -rwxr-xr-x 1 admin administ 8.3k Aug 27 16:27 lib11_imap_quota_plugin.so* -rw-r--r-- 1 admin administ 56.9k Jan 6 2011 lib11_trash_plugin.a -rwxr-xr-x 1 admin administ 1.1k Aug 27 16:27 lib11_trash_plugin.la* -rwxr-xr-x 1 admin administ 9.9k Aug 27 16:27 lib11_trash_plugin.so* -rw-r--r-- 1 admin administ 71.8k Jan 6 2011 lib15_notify_plugin.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 lib15_notify_plugin.la* -rwxr-xr-x 1 admin administ 10.6k Aug 27 16:27 lib15_notify_plugin.so* -rw-r--r-- 1 admin administ 14.4k Jan 6 2011 lib20_autocreate_plugin.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 lib20_autocreate_plugin.la* -rwxr-xr-x 1 admin administ 5.3k Aug 27 16:27 lib20_autocreate_plugin.so* -rw-r--r-- 1 avahi avahi 10.9k Nov 26 2009 lib20_convert_plugin.a -rw-r--r-- 1 admin administ 62.7k Jan 6 2011 lib20_expire_plugin.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 lib20_expire_plugin.la* -rwxr-xr-x 1 admin administ 10.6k Aug 27 16:27 lib20_expire_plugin.so* -rw-r--r-- 1 admin administ 161.0k Jan 6 2011 lib20_fts_plugin.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 lib20_fts_plugin.la* -rwxr-xr-x 1 admin administ 29.4k Aug 27 16:27 lib20_fts_plugin.so* -rw-r--r-- 1 admin administ 59.4k Jan 6 2011 lib20_listescape_plugin.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 lib20_listescape_plugin.la* -rwxr-xr-x 1 admin administ 9.4k Aug 27 16:27 lib20_listescape_plugin.so* -rw-r--r-- 1 admin administ 62.8k Jan 6 2011 lib20_mail_log_plugin.a -rwxr-xr-x 1 admin administ 1.1k Aug 27 16:27 lib20_mail_log_plugin.la* -rwxr-xr-x 1 admin administ 10.1k Aug 27 16:27 lib20_mail_log_plugin.so* -rw-r--r-- 1 avahi avahi 54.4k Nov 6 2010 lib20_mbox_snarf_plugin.a -rw-r--r-- 1 admin administ 450.8k Jan 6 2011 lib20_virtual_plugin.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 lib20_virtual_plugin.la* -rwxr-xr-x 1 admin administ 47.6k Aug 27 16:27 lib20_virtual_plugin.so* -rw-r--r-- 1 admin administ 115.1k Jan 6 2011 lib20_zlib_plugin.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 lib20_zlib_plugin.la* -rwxr-xr-x 1 admin administ 18.4k Aug 27 16:27 lib20_zlib_plugin.so* -rw-r--r-- 1 admin administ 181.7k Jan 6 2011 lib21_fts_squat_plugin.a -rwxr-xr-x 1 admin administ 1.1k Aug 27 16:27 lib21_fts_squat_plugin.la* -rwxr-xr-x 1 admin administ 48.8k Aug 27 16:27 lib21_fts_squat_plugin.so* -rw-r--r-- 1 admin administ 22.0k Jan 6 2011 lib30_imap_zlib_plugin.a -rwxr-xr-x 1 admin administ 1.1k Aug 27 16:27 lib30_imap_zlib_plugin.la* -rwxr-xr-x 1 admin administ 6.5k Aug 27 16:27 lib30_imap_zlib_plugin.so* -rw-r--r-- 1 admin administ 101.3k Jan 6 2011 libdovecot-lda.a -rwxr-xr-x 1 admin administ 1.1k Aug 27 16:27 libdovecot-lda.la* lrwxrwxrwx 1 admin administ 23 Aug 27 16:31 libdovecot-lda.so -> libdovecot-lda.so.0.0.0* lrwxrwxrwx 1 admin administ 23 Aug 27 16:31 libdovecot-lda.so.0 -> libdovecot-lda.so.0.0.0* -rwxr-xr-x 1 admin administ 35.2k Aug 27 16:27 libdovecot-lda.so.0.0.0* -rw-r--r-- 1 admin administ 241.7k Jan 6 2011 libdovecot-login.a -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 libdovecot-login.la* lrwxrwxrwx 1 admin administ 25 Aug 27 16:31 libdovecot-login.so -> libdovecot-login.so.0.0.0* lrwxrwxrwx 1 admin administ 25 Aug 27 16:31 libdovecot-login.so.0 -> libdovecot-login.so.0.0.0* -rwxr-xr-x 1 admin administ 65.5k Aug 27 16:27 libdovecot-login.so.0.0.0* -rwxr-xr-x 1 admin administ 1.0k Aug 27 16:27 libdovecot-sql.la* lrwxrwxrwx 1 admin administ 23 Aug 27 16:31 libdovecot-sql.so -> libdovecot-sql.so.0.0.0* lrwxrwxrwx 1 admin administ 23 Aug 27 16:31 libdovecot-sql.so.0 -> libdovecot-sql.so.0.0.0* -rwxr-xr-x 1 admin administ 19.3k Aug 27 16:27 libdovecot-sql.so.0.0.0* -rw-r--r-- 1 admin administ 6.2M Jan 6 2011 libdovecot-storage.a -rwxr-xr-x 1 admin administ 1.1k Aug 27 16:27 libdovecot-storage.la* lrwxrwxrwx 1 admin administ 27 Aug 27 16:31 libdovecot-storage.so -> libdovecot-storage.so.0.0.0* lrwxrwxrwx 1 admin administ 27 Aug 27 16:31 libdovecot-storage.so.0 -> libdovecot-storage.so.0.0.0* -rwxr-xr-x 1 admin administ 737.5k Aug 27 16:27 libdovecot-storage.so.0.0.0* -rw-r--r-- 1 admin administ 1.8M Jan 6 2011 libdovecot.a -rwxr-xr-x 1 admin administ 1011 Aug 27 16:27 libdovecot.la* lrwxrwxrwx 1 admin administ 19 Aug 27 16:31 libdovecot.so -> libdovecot.so.0.0.0* lrwxrwxrwx 1 admin administ 19 Aug 27 16:31 libdovecot.so.0 -> libdovecot.so.0.0.0* -rwxr-xr-x 1 admin administ 440.8k Aug 27 16:27 libdovecot.so.0.0.0* drwxr-xr-x 2 admin administ 4.0k Aug 26 18:01 pop3/ Everything seems to be in the right place. So I don't know what's wrong. Now on to my post script. This issue first appears when I try to package my freshly built Dovecot for installation on my arm powered nas. #make dovecot-ipk [...] test -z "/opt/include/dovecot" || /usr/bin/mkdir -p "~/Projects/nslu2/optware/tsx09/builds/dovecot-2.0.13-ipk/opt/include/dovecot" /usr/bin/install -c -m 644 settings.h settings-parser.h '~/Projects/nslu2/optware/tsx09/builds/dovecot-2.0.13-ipk/opt/include/dovecot' make[5]: Leaving directory `~/Projects/nslu2/optware/tsx09/builds/dovecot/src/lib-settings' make[4]: Leaving directory `~/Projects/nslu2/optware/tsx09/builds/dovecot/src/lib-settings' Making install in lib-dovecot make[4]: Entering directory `~/Projects/nslu2/optware/tsx09/builds/dovecot/src/lib-dovecot' make[5]: Entering directory `~/Projects/nslu2/optware/tsx09/builds/dovecot/src/lib-dovecot' test -z "/opt/lib/dovecot" || /usr/bin/mkdir -p "~/Projects/nslu2/optware/tsx09/builds/dovecot-2.0.13-ipk/opt/lib/dovecot" /bin/sh ../../libtool --mode=install /usr/bin/install -c -s libdovecot.la '~/Projects/nslu2/optware/tsx09/builds/dovecot-2.0.13-ipk/opt/lib/dovecot' libtool: install: /usr/bin/install -c .libs/libdovecot.so.0.0.0 ~/Projects/nslu2/optware/tsx09/builds/dovecot-2.0.13-ipk/opt/lib/dovecot/libdovecot.so.0.0.0 libtool: install: strip --strip-unneeded ~/Projects/nslu2/optware/tsx09/builds/dovecot-2.0.13-ipk/opt/lib/dovecot/libdovecot.so.0.0.0 strip: Unable to recognise the format of the input file `~/Projects/nslu2/optware/tsx09/builds/dovecot-2.0.13-ipk/opt/lib/dovecot/libdovecot.so.0.0.0' make[5]: *** [install-pkglibLTLIBRARIES] Error 1 make[5]: Leaving directory `~/Projects/nslu2/optware/tsx09/builds/dovecot/src/lib-dovecot' make[4]: *** [install-am] Error 2 make[4]: Leaving directory `~/Projects/nslu2/optware/tsx09/builds/dovecot/src/lib-dovecot' make[3]: *** [install-recursive] Error 1 make[3]: Leaving directory `~/Projects/nslu2/optware/tsx09/builds/dovecot/src' make[2]: *** [install-recursive] Error 1 make[2]: Leaving directory `~/Projects/nslu2/optware/tsx09/builds/dovecot' make[1]: *** [install-strip] Error 2 make[1]: Leaving directory `~/Projects/nslu2/optware/tsx09/builds/dovecot' make: *** [~/Projects/nslu2/optware/tsx09/builds/dovecot_2.0.13-2_arm.ipk] Error 2 So I went looking for libdovecot.so.0.0.0 and found, ls -ahl ~/Projects/nslu2/optware/tsx09/builds/dovecot-2.0.13-ipk/opt/lib/dovecot/: total 1.3M drwxr-xr-x 2 leonidis leonidis 4.0K Aug 27 17:07 . drwxr-xr-x 3 leonidis leonidis 4.0K Aug 27 17:07 .. -rw-r--r-- 1 leonidis leonidis 678 Aug 27 17:07 dovecot-config -rwxr-xr-x 1 leonidis leonidis 1.3M Aug 27 17:07 libdovecot.so.0.0.0 The other libraries appear to have been built and are waiting to be packaged up but ipackage doesn't seem to get that far. What this says about ipackage and how it might relate to my first problem I don't know. I apologise this all seems a bit like a broken record to me. -- Kind regards Stephen Feyrer.

3 2

Re: [Dovecot] File Permissions and delivery
by Timo Sirainen 29 Aug '11

29 Aug '11

On Fri, 2011-08-26 at 13:10 -0400, Simon Brereton wrote: > mail:~# ls /var/spool/mail/virtual/domain.net/simon/new/ > -rwxrwx--- 1 postfix mailsystem 2.5K Aug 26 03:33 1314326000.V801I1666018M803015.mail.net,S=2461:2, > -rwxrwx--- 1 postfix mailsystem 2.5K Aug 26 03:36 1314326209.V801I1666019M447273.mail.net,S=2460:2, > -rw-rw---- 1 postfix mailsystem 2.5K Aug 26 04:00 1314327630.V801I166601aM308173.mail.net,S=2477:2, > -rw------- 1 postfix mailsystem 2.5K Aug 26 04:22 1314328966.V801I166601bM756462.mail.net,S=2461:2, > -rw------- 1 postfix mailsystem 1.1K Aug 26 16:28 1314372534.V801I166601cM615258.mail.net,S=1097:2, > -rw------- 1 postfix mailsystem 1.1K Aug 26 16:31 1314372685.V801I166601dM264242.mail.net,S=1097:2, > > Mails are being delivered with 0600 permissions and not 0660 (the mails from courier seem to have all been 0770 as you can see). If I manually change the permission (to 0660) then I can see the mail in the MUA. If /var/spool/mail/virtual/domain.net/simon has 0770 permissions, the new mails should be delivered with 0660 permissions. (I don't remember if having g+s makes any difference in the directory like you have in the domain dir.) In any case, it would be better if mails were delivered as mailsystem:mailsystem 0600 since that's what you're reading them as. Unless you have some other good reason for requiring mailsystem group to be able to read them.

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Re: [Dovecot] File Permissions and delivery
by Patrick Domack 29 Aug '11

29 Aug '11

My guess is your delivering email with postfix to the inbox, instead of using dovecot-lda. And something odd is going on with that postfix to get odd permissions like that. You probably needed to edit the postfix virtual deliever transport, or maybe you just forget to active the dovecot-lda (deliever) transport. Quoting Simon Brereton <simon.brereton(a)buongiorno.com>: > Hi > > I'm very new to Dovecot (been using Courier for 5 years), but I've > been persuaded of the merits of Dovecot and since the server needs > upgrading that seems like the perfect time/excuse. > > On a test server, I set up postfix and installed Dovecot (running > 32-bit Debian Squeeze, installed from apt-get). I mirrored the mail > store (Maildirs, for historical reasons located under > /var/spool/mail/virtual/domain.com/user). Then I ran the courier > migration perl script and everything was fine and dandy. > > However, when I can to do the production migration, things weren't > as smooth. The new server is 64-bit (not that I think it makes a > difference, but if you're going to help me you should have all the > information :) > > Again, I installed Postfix and Dovecot > Took down the old server > Mirrored the Maildirs > Ran the migration script > Restarted everything > > At this point everything looked like it was ok. Mail was being > received and delivered to the Maildirs and the IMAP login was fine. > However, I noticed errors in the logs when retreiving mail with the > MUA along the lines of: > > Aug 26 16:59:48 mail dovecot: IMAP(simon(a)lydiard.net): > open(/var/spool/mail/virtual/domain.net/simon/cur/1314328966.V801I166601bM7… failed: Permission denied (euid=999(mailsystem) egid=115(mailsystem) missing +r perm: > /var/spool/mail/virtual/domain.net/simon/cur/1314328966.V801I166601bM756462.mail.net,S=2461:2,) > > After messing around with the chown and chmod (even though these > were exactly the same as the test server) I finally discovered the > issue. > > mail:~# ls /var/spool/mail/virtual/domain.net/simon/new/ > -rwxrwx--- 1 postfix mailsystem 2.5K Aug 26 03:33 > 1314326000.V801I1666018M803015.mail.net,S=2461:2, > -rwxrwx--- 1 postfix mailsystem 2.5K Aug 26 03:36 > 1314326209.V801I1666019M447273.mail.net,S=2460:2, > -rw-rw---- 1 postfix mailsystem 2.5K Aug 26 04:00 > 1314327630.V801I166601aM308173.mail.net,S=2477:2, > -rw------- 1 postfix mailsystem 2.5K Aug 26 04:22 > 1314328966.V801I166601bM756462.mail.net,S=2461:2, > -rw------- 1 postfix mailsystem 1.1K Aug 26 16:28 > 1314372534.V801I166601cM615258.mail.net,S=1097:2, > -rw------- 1 postfix mailsystem 1.1K Aug 26 16:31 > 1314372685.V801I166601dM264242.mail.net,S=1097:2, > > Mails are being delivered with 0600 permissions and not 0660 (the > mails from courier seem to have all been 0770 as you can see). If I > manually change the permission (to 0660) then I can see the mail in > the MUA. > > After thinking for a while it occurred to me that this is covered in > the LDA section. But making changes to the config file (either > permissions or UID/GID) doesn't seem to make a difference. (Yes, I > did restart postfix and dovecot after the changes). > > Anyway, here is my dovecot -n: > > mail:~# dovecot -n > # 1.2.15: /etc/dovecot/dovecot.conf > # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.2 ext3 > log_timestamp: %Y-%m-%d %H:%M:%S > protocols: imap imaps pop3 pop3s > ssl_ca_file: /etc/ssl/keys/ca.crt > ssl_cert_file: /etc/ssl/keys/mail.net.crt > ssl_key_file: /etc/ssl/private/mail.net.key > 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_privileged_group: mailsystem > mail_location: maildir:/var/spool/mail/virtual/%d/%n > maildir_very_dirty_syncs: yes > mbox_write_locks: fcntl dotlock > 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 imap_quota > mail_plugins(imap): quota imap_quota > mail_plugins(pop3): quota > 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): outlook-idle delay-newmail > imap_client_workarounds(imap): outlook-idle delay-newmail > imap_client_workarounds(pop3): > pop3_client_workarounds(default): > pop3_client_workarounds(imap): > pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh > lda: > postmaster_address: postmaster@net > mail_plugins: quota > log_path: > info_log_path: > deliver_log_format: msgid=%m: %f: %$ > auth default: > mechanisms: plain login > user: mailsystem > verbose: yes > passdb: > driver: sql > args: /etc/dovecot/dovecot-sql.conf > userdb: > driver: prefetch > userdb: > driver: static > args: uid=999 gid=115 home=/var/spool/mail/virtual/%d/%n > allow_all_users=yes > socket: > type: listen > client: > path: /var/spool/postfix/private/auth > mode: 432 > user: postfix > group: mailsystem > master: > path: /var/run/dovecot/auth-master > mode: 432 > user: mailsystem > group: mailsystem > plugin: > quota: maildir > > As you can see, I tried to go 0660 in both client and master. > > The portion of my master.cf > 81 # SPB - Attempt to deliver with Dovecot LDA > 82 dovecot unix - n n - - pipe > 83 flags=DRhu user=mailsystem argv=/usr/lib/dovecot/deliver -f > ${sender} -d ${user}@${nexthop} > > Is there anything else I should include? > > I'm pretty sure it's an error on my part. I'm just not clued up > enough to know where. > > My second problem is that I thought I had things back to where they > were before I messed with chown and chmod, but now I get this in the > logs > > dovecot: dovecot: Fatal: > chdir(/var/spool/mail/virtual/domain.net/simon//) failed: Permission > denied (euid=999(mailsystem) egid=115(mailsystem) missing +x perm: > /var/spool/mail/virtual) > > But the ls on that is exactly the same as on the test server: > ls /var/spool/mail/virtual/ > total 44K > drwxrwS--- 11 postfix mailsystem 4.0K Aug 25 23:07 ./ > drwxrwsr-x 5 amavis mailsystem 4.0K Oct 19 2009 ../ > drwxrws--- 5 mailsystem mailsystem 4.0K Aug 26 02:33 domain.net/ > > So, now I'm stumped. I hope someone can spot the simple thing I've missed! > > Thanks. > > > Simon

2 3

[Dovecot] limiting number of incorrect logins per connection
by Alex 29 Aug '11

29 Aug '11

Hi Guys, Running Dovecot 2 on my server. It is regularly getting dictionary auth attacked. What I have noticed is that once connected to a pop3/imap login session, you can send endless incorrect usernames+passwords attempts. This is a problem for me... I use fail2ban to try and stop these script kiddies. The problem is that fail2ban detects the bad auths, firewalls the IP, however, since it's an "established" session, the attacker can keep authing away... It's only on a subsequent (new) connection that the firewalling will take effect. Why is there no configuration option such as "max auth attempts per connection"? This would be useful, so once the limit is reached, the connection is dropped. is there a patch/workaround?

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Re: [Dovecot] Catch22: user needs space to fix out of space condition
by Joseph Tam 29 Aug '11

29 Aug '11

Thanks to all who've made suggestions. It seems removing dotlocks as a locking method is the way to go. There is another dotlock locking variant mentioned in 10-mail.conf that seems to address this situation for those that can't get away from dotlocks: # dotlock_try: Same as dotlock, but if it fails because of permissions or # because there isn't enough disk space, just skip it. mbox_write_locks = dotlock_try fcntl Joseph Tam <jtam.home(a)gmail.com>

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[Dovecot] v2.0.14 released
by Timo Sirainen 29 Aug '11

29 Aug '11

http://dovecot.org/releases/2.0/dovecot-2.0.14.tar.gz http://dovecot.org/releases/2.0/dovecot-2.0.14.tar.gz.sig It's been a while since the previous release.. I've been a bit busy with my newly created Dovecot support company, but it was also summer and I wasted some time doing nothing useful. :) Most of my recent time has gone to adding new features to v2.1 branch. I'm planning on releasing v2.1.alpha1 somewhat soon and the final v2.1.0 sometimes later this year. This v2.0.14 release also contains one larger new feature: Ability to list and kick imap/pop3 proxy connections. This is done via a new "ipc" process where all proxying login processes connect to, which allows doveadm to communicate with them. If you're not using these features, this change (and its potential bugs) should be pretty much invisible. BTW. I know there are still mails I haven't read & replied to. I'll try to get to them eventually, but you may as well re-send anything you want me to read sooner rather than 6 months from now. Some of the largest changes since v2.0.13: + doveadm: Added support for running mail commands by proxying to another doveadm server. + Added "doveadm proxy list" and "doveadm proxy kick" commands to list/kick proxy connections (via a new "ipc" service). + Added "doveadm director move" to assign user from one server to another, killing any existing connections. + Added "doveadm director ring status" command. + userdb extra fields can now return name+=value to append to an existing name, e.g. "mail_plugins+= quota". - script-login attempted an unnecessary config lookup, which usually failed with "Permission denied". - lmtp: Fixed parsing quoted strings with spaces as local-part for MAIL FROM and RCPT TO. - imap: FETCH BODY[HEADER.FIELDS (..)] may have crashed or not returned all data sometimes. - ldap: Fixed random assert-crashing with with sasl_bind=yes. - Fixes to handling mail chroots - Fixed renaming mailboxes under different parent with FS layout when using separate ALT, INDEX or CONTROL paths. - zlib: Fixed reading concatenated .gz files.

1 0

[Dovecot] unlink_directory failed with 'Device or resource busy' on NFS
by 김기태 29 Aug '11

29 Aug '11

Hi, I'm getting some errors while I'm trying to move mailboxes from IMAP server to Outlook client. The error message is "IMAP command is failed" and I think it is useless. Here are the error messages written to server's syslog. imap(name(a)domain.com<mailto:name@domain.com>): Error: unlink_directory(/data/domain.com/name/INBOX/direct/.nfs00000000000033fd000… failed: Device or resource busy imap(name(a)domain.com<mailto:name@domain.com>): Error: unlink_directory(/data/domain.com/name/INBOX/IDC/.nfs000000000000709d000000… failed: Device or resource busy imap(name(a)domain.com<mailto:name@domain.com>): Error: unlink_directory(/data/domain.com/name/INBOX/OSSEC/.nfs000000000000709f0000… failed: Device or resource busy How can I solve this problem? I'm using Dovecot 2.0.13 and my configurations are: # 2.0.13: /usr/local/dovecot/etc/dovecot/dovecot.conf # OS: Linux 2.6.38-11-server x86_64 Ubuntu 11.04 listen = * mail_fsync = always mail_location = maildir:~:LAYOUT=fs mail_nfs_index = yes mail_nfs_storage = yes mmap_disable = yes passdb { args = /usr/local/dovecot/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } ssl_cert = </etc/postfix/tls/smtpd.cert ssl_key = </etc/postfix/tls/smtpd.key userdb { args = uid=65534 gid=65534 home=/data/%Ld/%Ln driver = static }

2 1

[Dovecot] Pop3 hanging up after login.
by Fabio Catunda 29 Aug '11

29 Aug '11

Hi, I'm trying to implement a second dovecot server on a second machine to try to load balance IMAP/POP3 services. The first machine is already running and is working pretty well with dovecot-pop3d 1:1.0.15-2.3+lenny1. The new machine is running dovecot-pop3d 1:1.2.15-7 and accessing the existing maildirs over a NFS share on /mnt/mail. When I try to telnet localhost 110 on the new machine it just freezes after the "pass MySecret", like this: # telnet localhost 110 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. +OK Bem Vindo. user my.user(a)mydomain.com.br +OK pass MySecret ... (Nothing else happens) If I try to stop Dovecot with /etc/init.d/dovecot stop it stops, but the pop3 process keep running and the only way to stop it is with kill -9. On my log I only can see this: Aug 27 15:03:40 radamante dovecot: auth(default): client in: AUTH#0112#011PLAIN#011service=pop3#011secured#011lip=127.0.0.1#011rip=127.0.0.1#011lport=110#011rport=60421#011resp=<hidden> Aug 27 15:03:40 radamante dovecot: auth-worker(default): pam(my.user(a)mydomain.com.br,127.0.0.1): lookup service=dovecot Aug 27 15:03:40 radamante dovecot: auth-worker(default): pam(my.user(a)mydomain.com.br,127.0.0.1): #1/1 style=1 msg=Password: Aug 27 15:03:42 radamante dovecot: auth-worker(default): pam(my.user(a)mydomain.com.br,127.0.0.1): pam_authenticate() failed: Authentication failure (password mismatch?) Aug 27 15:03:42 radamante dovecot: auth(default): cache(my.user(a)mydomain.com.br,127.0.0.1): miss Aug 27 15:03:42 radamante dovecot: auth(default): ldap(my.user(a)mydomain.com.br,127.0.0.1): pass search: base=ou=Users, dc=mydomain, dc=com, dc=br scope=subtree filter=(&(mail=my.user(a)mydomain.com.br)) fields=mail,userPassword Aug 27 15:03:42 radamante dovecot: auth(default): ldap(my.user(a)mydomain.com.br,127.0.0.1): result: mail(user@domain)=my.user@mydomain.com.br userPassword(password)=<hidden> Aug 27 15:03:42 radamante dovecot: auth(default): client out: OK#0112#011user=my.user@mydomain.com.br#011user@domain=my.user@mydomain.com.br Aug 27 15:03:42 radamante dovecot: auth(default): master in: REQUEST#0111#01130330#0112 Aug 27 15:03:42 radamante dovecot: auth(default): passwd(my.user(a)mydomain.com.br,127.0.0.1): lookup Aug 27 15:03:42 radamante dovecot: auth(default): passwd(my.user(a)mydomain.com.br,127.0.0.1): unknown user Aug 27 15:03:42 radamante dovecot: auth(default): ldap(my.user(a)mydomain.com.br,127.0.0.1): user search: base=ou=Users, dc=mydomain, dc=com, dc=br scope=subtree filter=(&(mail=my.user(a)mydomain.com.br)) fields=homeDirectory,uidNumber,gidNumber Aug 27 15:03:42 radamante dovecot: auth(default): ldap(my.user(a)mydomain.com.br,127.0.0.1): result: uidNumber(uidNumber)=3478 gidNumber(gidNumber)=513 homeDirectory(homeDirectory)=/home/samba/my.user Aug 27 15:03:42 radamante dovecot: auth(default): master out: USER#0111#011my.user@mydomain.com.br#011uidNumber=3478#011gidNumber=513#011homeDirectory=/home/samba/my.user Aug 27 15:03:42 radamante dovecot: pop3-login: Login: user=<my.user(a)mydomain.com.br>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured Aug 27 15:03:42 radamante dovecot: auth(default): new auth connection: pid=30330 Aug 27 15:03:42 radamante dovecot: POP3(my.user(a)mydomain.com.br): Effective uid=8, gid=8, home=(none) Aug 27 15:03:42 radamante dovecot: POP3(my.user(a)mydomain.com.br): maildir: data=/mnt/mail/mydomain.com.br/my.user/Maildir Aug 27 15:03:42 radamante dovecot: POP3(my.user(a)mydomain.com.br): maildir++: root=/mnt/mail/mydomain.com.br/my.user/Maildir, index=, control=, inbox=/mnt/mail/mydomain.com.br/my.user/Maildir Aug 27 15:03:42 radamante dovecot: POP3(my.user(a)mydomain.com.br): Namespace : Using permissions from /mnt/mail/mydomain.com.br/my.user/Maildir: mode=0700 gid=-1 By now I have no clue whats going on, any help is appreciated. I don't understand if the problem is the NFS share or if it's something with the new version of Dovecot on Debian. Some more info: # dovecot -n # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.2 nfs log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap pop3 ssl: no 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 login_greeting: Bem Vindo. login_process_per_connection: no login_chroot: no login_process_size: 128 login_processes_count: 8 max_mail_processes: 2048 mail_max_userip_connections(default): 100 mail_max_userip_connections(imap): 100 mail_max_userip_connections(pop3): 10 verbose_proctitle: yes first_valid_uid: 1 last_valid_uid: 9999 last_valid_gid: 9999 mail_privileged_group: mail mail_uid: mail mail_gid: mail mail_location: maildir:/mnt/mail/%Ld/%Ln/Maildir mail_debug: yes mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes maildir_copy_preserve_filename: yes mbox_write_locks: fcntl dotlock mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_process_size: 512 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 imap_client_workarounds(imap): delay-newmail imap_client_workarounds(pop3): imap_idle_notify_interval(default): 30 imap_idle_notify_interval(imap): 30 imap_idle_notify_interval(pop3): 120 pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: default_realm: mydomain.com.br cache_size: 1024 cache_negative_ttl: 0 username_format: %Lu failure_delay: 3 debug: yes passdb: driver: pam passdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf userdb: driver: passwd userdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf root@radamante:/etc/dovecot# egrep -v '^#|^$' dovecot-ldap.conf hosts = 192.168.5.37 192.168.5.124 sasl_bind = no tls = no auth_bind = no ldap_version = 3 base = ou=Users, dc=mydomain, dc=com, dc=br deref = never scope = subtree user_attrs = homeDirectory=homeDirectory,uidNumber=uidNumber,gidNumber=gidNumber user_filter = (&(mail=%u)) pass_attrs = mail=user@domain,userPassword=password pass_filter = (&(mail=%u)) default_pass_scheme = CRYPT Thanks in advance.

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[Dovecot] occasional dovecot crash, core captured but no symbol table info?
by John Clements 27 Aug '11

27 Aug '11

Dovecot is crashing occasionally for me. Today it crashed six times in quick succession, as I fired up a computer (Mac) I hadn't used in a while, and my mail application (Apple Mail) tried to synchronize many large mailboxes. The log entries look like this: Aug 26 10:26:15 computer dovecot: dovecot: child 23223 (imap) killed with signal 6 (core dumped) Aug 26 10:26:30 computer dovecot: IMAP(granitemon): Panic: file istream-raw-mbox.c: line 583 (istream_raw_mbox_get_body_size): assertion failed: (rstream->body_offset != (uoff_t)-1) Aug 26 10:26:30 computer dovecot: IMAP(granitemon): Raw backtrace: imap() [0x80f0e1e] -> imap() [0x80f0e82] -> imap() [0x80f0809] -> imap(istream_raw_mbox_get_body_size+0x407) [0x8092f47] -> imap(istream_raw_mbox_next+0x25) [0x8093025] -> imap(istream_raw_mbox_seek+0x1f3) [0x8093323] -> imap(mbox_file_seek+0x55) [0x8093745] -> imap() [0x8095852] -> imap() [0x8095c8d] -> imap(index_mail_set_seq+0x153) [0x80a35c3] -> imap() [0x8095fb9] -> imap(index_storage_search_next_nonblock+0x13b) [0x80a763b] -> imap(mailbox_search_next_nonblock+0x2a) [0x80b5c1a] -> imap(mailbox_search_next+0x28) [0x80b5c68] -> imap(imap_fetch_more+0x274) [0x806a4c4] -> imap() [0x8062665] -> imap() [0x806753f] -> imap(client_output+0xeb) [0x806862b] -> imap() [0x810007e] -> imap(io_loop_handler_run+0xd6) [0x80f9aa6] -> imap(io_loop_run+0x20) [0x80f8f20] -> imap(main+0x5b4) [0x8070f24] -> /lib/i686/cmov/libc.so.6(__libc_start_main+0xe6) [0xb75f3c76] -> imap() [0x80603a1] Aug 26 10:26:30 computer dovecot: dovecot: child 23228 (imap) killed with signal 6 (core dumped) Here's the output of dovecot -n: clements@computer:/home/granitemon$ sudo dovecot -n # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-686 i686 Debian 6.0.2 log_timestamp: %Y-%m-%d %H:%M:%S login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login mail_privileged_group: mail mbox_write_locks: fcntl dotlock lda: postmaster_address: postmaster(a)brinckerhoff.org mail_plugins: sieve auth default: passdb: driver: pam userdb: driver: passwd ... this is the version associated with debian stable. Finally, since I had coredumps enabled, I'm in a position to provide 'bt full', but it looks like my binaries are stripped, so I'm not getting source code line numbers. granitemon@computer:~$ gdb /usr/lib/dovecot/imap ./core GNU gdb (GDB) 7.0.1-debian Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/lib/dovecot/imap...(no debugging symbols found)...done. warning: Can't read pathname for load map: Input/output error. Reading symbols from /lib/i686/cmov/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libdl.so.2 Reading symbols from /usr/lib/libldap_r-2.4.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libldap_r-2.4.so.2 Reading symbols from /lib/i686/cmov/librt.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/librt.so.1 Reading symbols from /lib/i686/cmov/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libc.so.6 Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/ld-linux.so.2 Reading symbols from /usr/lib/liblber-2.4.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/liblber-2.4.so.2 Reading symbols from /lib/i686/cmov/libresolv.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libresolv.so.2 Reading symbols from /usr/lib/libsasl2.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libsasl2.so.2 Reading symbols from /usr/lib/libgnutls.so.26...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgnutls.so.26 Reading symbols from /lib/i686/cmov/libpthread.so.0...(no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libpthread.so.0 Reading symbols from /usr/lib/libtasn1.so.3...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libtasn1.so.3 Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libz.so.1 Reading symbols from /usr/lib/libgcrypt.so.11...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgcrypt.so.11 Reading symbols from /usr/lib/libgpg-error.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgpg-error.so.0 Reading symbols from /lib/i686/cmov/libnss_compat.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libnss_compat.so.2 Reading symbols from /lib/i686/cmov/libnsl.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libnsl.so.1 Reading symbols from /lib/i686/cmov/libnss_nis.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libnss_nis.so.2 Reading symbols from /lib/i686/cmov/libnss_files.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libnss_files.so.2 Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/libgcc_s.so.1 Core was generated by `imap'. Program terminated with signal 6, Aborted. #0 0xb7788424 in __kernel_vsyscall () (gdb) bt full #0 0xb7788424 in __kernel_vsyscall () No symbol table info available. #1 0xb7607751 in raise () from /lib/i686/cmov/libc.so.6 No symbol table info available. #2 0xb760ab82 in abort () from /lib/i686/cmov/libc.so.6 No symbol table info available. #3 0x080f0e2e in ?? () No symbol table info available. #4 0x080f0e82 in ?? () No symbol table info available. #5 0x080f0809 in i_panic () No symbol table info available. #6 0x08092f47 in istream_raw_mbox_get_body_size () No symbol table info available. #7 0x08093025 in istream_raw_mbox_next () No symbol table info available. #8 0x08093323 in istream_raw_mbox_seek () No symbol table info available. #9 0x08093745 in mbox_file_seek () No symbol table info available. #10 0x08095852 in ?? () No symbol table info available. #11 0x08095c8d in ?? () No symbol table info available. #12 0x080a35c3 in index_mail_set_seq () No symbol table info available. #13 0x08095fb9 in ?? () No symbol table info available. #14 0x080a763b in index_storage_search_next_nonblock () No symbol table info available. #15 0x080b5c1a in mailbox_search_next_nonblock () No symbol table info available. #16 0x080b5c68 in mailbox_search_next () No symbol table info available. #17 0x0806a4c4 in imap_fetch_more () No symbol table info available. #18 0x08062665 in ?? () No symbol table info available. #19 0x0806753f in ?? () No symbol table info available. #20 0x0806862b in client_output () No symbol table info available. #21 0x0810007e in ?? () No symbol table info available. #22 0x080f9aa6 in io_loop_handler_run () ---Type <return> to continue, or q <return> to quit--- No symbol table info available. #23 0x080f8f20 in io_loop_run () No symbol table info available. #24 0x08070f24 in main () No symbol table info available. (gdb) q Does anyone have any suggestions, here? Many thanks in advance; let me know if I can provide more information! All the best, John Clements

3 2

Re: [Dovecot] limiting number of incorrect logins per connection
by alex＠ahhyes.net 27 Aug '11

27 Aug '11

Thanks for that. I will change it and recompile. Sorry for the grumpyness yesterday in my posts. Was having a bad day. Is there any chance of there being an option on future versions that allow a number of failed auth attempts to be specified before dropping the connection? The other thread you mentioned, I see someone devised a small patch in c to add this functionality. It didnt look like a lot of code to do it. What are your thoughts? ----- Reply message ----- From: "Timo Sirainen" <tss(a)iki.fi> Date: Sat, Aug 27, 2011 02:30 Subject: [Dovecot] limiting number of incorrect logins per connection To: "Alex" <alex(a)ahhyes.net> Cc: <dovecot(a)dovecot.org> login-common/client-common.h : #define CLIENT_LOGIN_TIMEOUT_MSECS (MASTER_LOGIN_TIMEOUT_SECS*1000) So set it to (45*60*1000) But I don't think there's much of a practical difference between these. On 26.8.2011, at 12.07, Alex wrote: > 3 minutes! I think that's too long, how can I drop that down to about 45 seconds? > > > On Fri, 26 Aug 2011 11:44:45 +0300, Timo Sirainen wrote: >> On 26.8.2011, at 10.25, Alex wrote: >> >>> Running Dovecot 2 on my server. It is regularly getting dictionary auth attacked. What I have noticed is that once connected to a pop3/imap login session, you can send endless incorrect usernames+passwords attempts. This is a problem for me... I use fail2ban to try and stop these script kiddies. The problem is that fail2ban detects the bad auths, firewalls the IP, however, since it's an "established" session, the attacker can keep authing away... It's only on a subsequent (new) connection that the firewalling will take effect. >> >> Umm. If client hasn't managed to log in in 3 minutes, it's >> disconnected (no matter what it does with the connection). >

1 0

Re: [Dovecot] On IMAP vhost login, only Username being used
by hobie＠rumormillnews.com 26 Aug '11

26 Aug '11

Found it. :) Not a dovecot problem but a field in Icedove (Thunderbird variant) that had been automatically filled in by the software "to serve you better". It's on the Server Settings page as "User Name". "Never mind..." :) --hobie > Recapping: I'm working to set up Dovecot 2.0.13 along with some additional software (qmail, vpopmail, squirrelmail). It's working fine with squirrelmail now, but trying to connect over SSL with a Thunderbird variant and using IMAP, authentication fails because Dovecot is trying to match only the front part of the name (the user part), ignoring the domain name part of what it's being sent. So, instead of seeking to match virtual user: > > joe_blow(a)some_domain.com > > ...it's trying to match: > > joe_blow > > ...and failing, since joe_blow is not a system user but is a virtual host user. With Squirrelmail, connecting from localhost via non-SSL IMAP, the match is handled correctly, no problem. I've run the runtbird.sh script but no light was shed on this by the resulting output, all it said was that authentication was failing. > > Has anyone else encountered this problem? Any suggestions on how to fix it or where to look for additional info? Thanks kindly. > > --hobie > >> I tried the runtbird.sh script, hoping for more info - all it did was > show that auth is failing. I don't understand why Dovecot is separating the username from the domain name, and trying to match only on the username. Seems like there must be a config setting that affects this and that I'm overlooking. Thanks ahead for any help with this. >> >> --hobie >> >> hobie wrote earlier: >> >> ===== >> >> Attempting IMAP SSL login on new installation, using Icedove (Debain > Thunderbird variant), login fails. Logs show Dovecot attempting to match username only, not username with domain name, on Vpopmail user, so of course no match. Tried with '@' in full username, also with '%'. What's missing? >> >> Log shows: >> >> Aug 24 19:30:48 debian dovecot: auth: Debug: client in: CONT<hidden> Aug > 24 19:30:48 debian dovecot: auth: Debug: Loading modules from directory: /usr/local/lib/dovecot/auth >> Aug 24 19:30:48 debian dovecot: auth: Debug: vpopmail(postmaster,[IP > redacted]): lookup user=postmaster domain= >> >> Current config: >> >> # 2.0.13: /usr/local/etc/dovecot/dovecot.conf >> # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.2 ext3 >> auth_debug = yes >> auth_verbose = yes >> disable_plaintext_auth = no >> first_valid_gid = 89 >> first_valid_uid = 89 >> mail_debug = yes >> mail_location = maildir:/home/vpopmail/domains/%d/%n/Maildir >> maildir_very_dirty_syncs = yes >> passdb { >> driver = vpopmail >> } >> protocols = imap pop3 >> ssl_cert = </etc/ssl/certs/dovecot.pem >> ssl_key = </etc/ssl/private/dovecot.pem >> userdb { >> args = quota_template=quota_rule=*:backend=%q >> driver = vpopmail >> } >> >> --hobie >> >> ===== >> > > > > > > >

1 0

[Dovecot] performance with 100k messages per folder
by Florin Andrei 26 Aug '11

26 Aug '11

dovecot-2.0-0.10.beta6.20100630.el6.x86_64 on CentOS 6. Virtual machine with 1 GB of RAM on VMWare. The configuration is more or less stock. Postfix receives then delivers to Dovecot. IMAP with mbox. Only one user account, but shared by several people via webmail (Roundcube webmail in Apache on the same machine). No other MUAs. 100k new messages per month, inbox is rotated monthly into a YYYYMM folder by a cron job. Only one monthly folder so far. Messages are never deleted (but I may start deleting old folders a year or two from now). This is mostly for reading, with occasional messages being forwarded. The email was pretty sluggish when logging in to the webmail interface. I asked the admin to increase the RAM from 0.5 to 1 GB. I changed mbox_very_dirty_syncs to yes. These measures seemed to accelerate it a lot. There's still a 1 sec pause when logging in, during which time the dovecot/imap process is using a lot of CPU. It looks like, as long as I give it enough RAM to keep the folders in memory, the whole thing should be fast enough, which is great. Any other tips-n-tricks to keep the email server speedy and the users happy? Should I worry about mbox_very_dirty_syncs as long as there are no other MUAs? -- Florin Andrei http://florin.myip.org/

2 1

[Dovecot] File Permissions and delivery
by Simon Brereton 26 Aug '11

26 Aug '11

Hi I'm very new to Dovecot (been using Courier for 5 years), but I've been persuaded of the merits of Dovecot and since the server needs upgrading that seems like the perfect time/excuse. On a test server, I set up postfix and installed Dovecot (running 32-bit Debian Squeeze, installed from apt-get). I mirrored the mail store (Maildirs, for historical reasons located under /var/spool/mail/virtual/domain.com/user). Then I ran the courier migration perl script and everything was fine and dandy. However, when I can to do the production migration, things weren't as smooth. The new server is 64-bit (not that I think it makes a difference, but if you're going to help me you should have all the information :) Again, I installed Postfix and Dovecot Took down the old server Mirrored the Maildirs Ran the migration script Restarted everything At this point everything looked like it was ok. Mail was being received and delivered to the Maildirs and the IMAP login was fine. However, I noticed errors in the logs when retreiving mail with the MUA along the lines of: Aug 26 16:59:48 mail dovecot: IMAP(simon(a)lydiard.net): open(/var/spool/mail/virtual/domain.net/simon/cur/1314328966.V801I166601bM7… failed: Permission denied (euid=999(mailsystem) egid=115(mailsystem) missing +r perm: /var/spool/mail/virtual/domain.net/simon/cur/1314328966.V801I166601bM756462.mail.net,S=2461:2,) After messing around with the chown and chmod (even though these were exactly the same as the test server) I finally discovered the issue. mail:~# ls /var/spool/mail/virtual/domain.net/simon/new/ -rwxrwx--- 1 postfix mailsystem 2.5K Aug 26 03:33 1314326000.V801I1666018M803015.mail.net,S=2461:2, -rwxrwx--- 1 postfix mailsystem 2.5K Aug 26 03:36 1314326209.V801I1666019M447273.mail.net,S=2460:2, -rw-rw---- 1 postfix mailsystem 2.5K Aug 26 04:00 1314327630.V801I166601aM308173.mail.net,S=2477:2, -rw------- 1 postfix mailsystem 2.5K Aug 26 04:22 1314328966.V801I166601bM756462.mail.net,S=2461:2, -rw------- 1 postfix mailsystem 1.1K Aug 26 16:28 1314372534.V801I166601cM615258.mail.net,S=1097:2, -rw------- 1 postfix mailsystem 1.1K Aug 26 16:31 1314372685.V801I166601dM264242.mail.net,S=1097:2, Mails are being delivered with 0600 permissions and not 0660 (the mails from courier seem to have all been 0770 as you can see). If I manually change the permission (to 0660) then I can see the mail in the MUA. After thinking for a while it occurred to me that this is covered in the LDA section. But making changes to the config file (either permissions or UID/GID) doesn't seem to make a difference. (Yes, I did restart postfix and dovecot after the changes). Anyway, here is my dovecot -n: mail:~# dovecot -n # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.2 ext3 log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps pop3 pop3s ssl_ca_file: /etc/ssl/keys/ca.crt ssl_cert_file: /etc/ssl/keys/mail.net.crt ssl_key_file: /etc/ssl/private/mail.net.key 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_privileged_group: mailsystem mail_location: maildir:/var/spool/mail/virtual/%d/%n maildir_very_dirty_syncs: yes mbox_write_locks: fcntl dotlock 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 imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota 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): outlook-idle delay-newmail imap_client_workarounds(imap): outlook-idle delay-newmail imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh lda: postmaster_address: postmaster@net mail_plugins: quota log_path: info_log_path: deliver_log_format: msgid=%m: %f: %$ auth default: mechanisms: plain login user: mailsystem verbose: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch userdb: driver: static args: uid=999 gid=115 home=/var/spool/mail/virtual/%d/%n allow_all_users=yes socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: mailsystem master: path: /var/run/dovecot/auth-master mode: 432 user: mailsystem group: mailsystem plugin: quota: maildir As you can see, I tried to go 0660 in both client and master. The portion of my master.cf 81 # SPB - Attempt to deliver with Dovecot LDA 82 dovecot unix - n n - - pipe 83 flags=DRhu user=mailsystem argv=/usr/lib/dovecot/deliver -f ${sender} -d ${user}@${nexthop} Is there anything else I should include? I'm pretty sure it's an error on my part. I'm just not clued up enough to know where. My second problem is that I thought I had things back to where they were before I messed with chown and chmod, but now I get this in the logs dovecot: dovecot: Fatal: chdir(/var/spool/mail/virtual/domain.net/simon//) failed: Permission denied (euid=999(mailsystem) egid=115(mailsystem) missing +x perm: /var/spool/mail/virtual) But the ls on that is exactly the same as on the test server: ls /var/spool/mail/virtual/ total 44K drwxrwS--- 11 postfix mailsystem 4.0K Aug 25 23:07 ./ drwxrwsr-x 5 amavis mailsystem 4.0K Oct 19 2009 ../ drwxrws--- 5 mailsystem mailsystem 4.0K Aug 26 02:33 domain.net/ So, now I'm stumped. I hope someone can spot the simple thing I've missed! Thanks. Simon

1 0

Re: [Dovecot] limiting number of incorrect logins per connection
by alex＠ahhyes.net 26 Aug '11

26 Aug '11

Hi, I saw that thread already, however it does not offer any solution that can be applied to dovecot directly. That thread has also been asleep for well over a year. It couldnt be that hard for the author to implement this function. It would only require a few lines of code. ----- Reply message ----- From: "Robert Schetterer" <robert(a)schetterer.org> Date: Fri, Aug 26, 2011 17:59 Subject: [Dovecot] limiting number of incorrect logins per connection To: <dovecot(a)dovecot.org> Am 26.08.2011 09:25, schrieb Alex: > Hi Guys, > > Running Dovecot 2 on my server. It is regularly getting dictionary auth > attacked. What I have noticed is that once connected to a pop3/imap > login session, you can send endless incorrect usernames+passwords > attempts. This is a problem for me... I use fail2ban to try and stop > these script kiddies. The problem is that fail2ban detects the bad > auths, firewalls the IP, however, since it's an "established" session, > the attacker can keep authing away... It's only on a subsequent (new) > connection that the firewalling will take effect. > > Why is there no configuration option such as "max auth attempts per > connection"? This would be useful, so once the limit is reached, the > connection is dropped. > > is there a patch/workaround? > there where equal questions in the past i.e read http://comments.gmane.org/gmane.mail.imap.dovecot/46204 -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

1 0

Re: [Dovecot] On IMAP vhost login, only Username being used
by hobie＠rumormillnews.com 26 Aug '11

26 Aug '11

Recapping: I'm working to set up Dovecot 2.0.13 along with some additional software (qmail, vpopmail, squirrelmail). It's working fine with squirrelmail now, but trying to connect over SSL with a Thunderbird variant and using IMAP, authentication fails because Dovecot is trying to match only the front part of the name (the user part), ignoring the domain name part of what it's being sent. So, instead of seeking to match virtual user: joe_blow(a)some_domain.com ...it's trying to match: joe_blow ...and failing, since joe_blow is not a system user but is a virtual host user. With Squirrelmail, connecting from localhost via non-SSL IMAP, the match is handled correctly, no problem. I've run the runtbird.sh script but no light was shed on this by the resulting output, all it said was that authentication was failing. Has anyone else encountered this problem? Any suggestions on how to fix it or where to look for additional info? Thanks kindly. --hobie > I tried the runtbird.sh script, hoping for more info - all it did was show that auth is failing. I don't understand why Dovecot is separating the username from the domain name, and trying to match only on the username. Seems like there must be a config setting that affects this and that I'm overlooking. Thanks ahead for any help with this. > > --hobie > > hobie wrote earlier: > > ===== > > Attempting IMAP SSL login on new installation, using Icedove (Debain Thunderbird variant), login fails. Logs show Dovecot attempting to match username only, not username with domain name, on Vpopmail user, so of course no match. Tried with '@' in full username, also with '%'. What's missing? > > Log shows: > > Aug 24 19:30:48 debian dovecot: auth: Debug: client in: CONT<hidden> Aug 24 19:30:48 debian dovecot: auth: Debug: Loading modules from directory: /usr/local/lib/dovecot/auth > Aug 24 19:30:48 debian dovecot: auth: Debug: vpopmail(postmaster,[IP redacted]): lookup user=postmaster domain= > > Current config: > > # 2.0.13: /usr/local/etc/dovecot/dovecot.conf > # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.2 ext3 > auth_debug = yes > auth_verbose = yes > disable_plaintext_auth = no > first_valid_gid = 89 > first_valid_uid = 89 > mail_debug = yes > mail_location = maildir:/home/vpopmail/domains/%d/%n/Maildir > maildir_very_dirty_syncs = yes > passdb { > driver = vpopmail > } > protocols = imap pop3 > ssl_cert = </etc/ssl/certs/dovecot.pem > ssl_key = </etc/ssl/private/dovecot.pem > userdb { > args = quota_template=quota_rule=*:backend=%q > driver = vpopmail > } > > --hobie > > ===== >

1 0

[Dovecot] Dovecot 2.0.13 How to use POP3 order
by Nick Celebic 26 Aug '11

26 Aug '11

I saw a few commits for 2.0.13 that added MAIL_FETCH_POP3_ORDER, but I haven't been able to find any information on how to use it. I'm migrating from a Merak mail server into dovecot and all the email can be copied directly into a Maildir/cur directory. The filenames are just the timestamps. When I check with dovecot pop3, they seem to be randomly ordered. I'm hoping this provides a solution where it will look at the file list or stat order. If this isn't possible, can someone tell me how I can change the order in which dovecot lists mails in a UIDL in POP3? Thanks, Nick Celebic

2 1

[Dovecot] Catch22: user needs space to fix out of space condition
by Joseph Tam 25 Aug '11

25 Aug '11

A mail user reported that he filled up his INBOX (despite reminders he was approaching his filesystem quota), and furthermore, he could not fix the situation because he couldn't expunge message he marked for deletion. The dovecot logs revealed the cause dovecot: imap(user): Error: open(/var/mail/user.lock) failed: Disc quota exceeded This created an impasse where a user cannot free space because he needs to create a lock file that cannot be created because he needs free space. Is there any way out of this without administrator intervention? Joseph Tam <jtam.home(a)gmail.com>

5 4

[Dovecot] dovecot and maillists problem
by Костырев Александр Алексеевич 25 Aug '11

25 Aug '11

Hello there! I have a little trouble with using dovecot as lmtp and maillists. I use dovecot 2.0.13 with exim 4.72 on Debian 6.0. (All stuff at one host). info of maillists is store in mysql table, for example: +---------+-------------------------------------------------------------------------------------------------+ | name | recipients | +---------+-------------------------------------------------------------------------------------------------+ | Hab_Tax | 2504000067-253601001.253809737993@25.example.org,2721097514-272101001.271300057673@.example.org | +---------+-------------------------------------------------------------------------------------------------+ The problem is: When I send a letter to short maillist (as above) it get the same ID and stored only once in the maildir of one user who is the member of that maillist - that's ok, but When I send a letter to maillist with a large number of recipients it occurred that it's saved more than one, because of the headers added by dovecot lmtp (I've changed host name): diff letter_in_one_user/1314238006.M841940P6916.pink\,S\=12778136\,W\=12953189 letler_in_second_user/new/1314237993.M460165P6916.pink\,S\=12778136\,W\=12953189 3,4c3,4 < by pink.atlas-2.ru (Dovecot) with LMTP id 6UiGJBWuVU4EGwAA1nFjLA < ; Thu, 25 Aug 2011 13:06:46 +1100 --- > by pink.atlas-2.ru (Dovecot) with LMTP id VUeGJBWuVU4EGwAA1nFjLA > ; Thu, 25 Aug 2011 13:06:29 +1100 It's the same letter accept the date and id. What I get in logs is: I see that exim send letters in maillist with one and the same id: ...skipped... 13:06:46 1QwPKe-0001nU-U5 <2502(a)example.org> ... 13:06:47 1QwPKe-0001nU-U5 <2502(a)example.org> ... But in logs of dovecot I see: 13:06:14 msgid=<E1QwPKe-0001nU-U5(a)pink.example.org>: wUWGJBWuVU4EGwAA1nFjLA: 13:06:18 msgid=<E1QwPKe-0001nU-U5(a)pink.example.org>: wEWGJBWuVU4EGwAA1nFjLA: 13:06:22 msgid=<E1QwPKe-0001nU-U5(a)pink.example.org>: JkaGJBWuVU4EGwAA1nFjLA: 13:06:26 msgid=<E1QwPKe-0001nU-U5(a)pink.example.org>: i0aGJBWuVU4EGwAA1nFjLA: 13:06:30 msgid=<E1QwPKe-0001nU-U5(a)pink.example.org>: 8EaGJBWuVU4EGwAA1nFjLA: 13:06:34 msgid=<E1QwPKe-0001nU-U5(a)pink.example.org>: VUeGJBWuVU4EGwAA1nFjLA: 13:06:37 msgid=<E1QwPKe-0001nU-U5(a)pink.example.org>: ukeGJBWuVU4EGwAA1nFjLA: 13:06:42 msgid=<E1QwPKe-0001nU-U5(a)pink.example.org>: H0iGJBWuVU4EGwAA1nFjLA: 13:06:46 msgid=<E1QwPKe-0001nU-U5(a)pink.example.org>: hEiGJBWuVU4EGwAA1nFjLA: 13:06:47 msgid=<E1QwPKe-0001nU-U5(a)pink.example.org>: 6UiGJBWuVU4EGwAA1nFjLA: Also in dovecot log I've noticed that: at first auth is searching info in sql for 200 users then log continues with lmtp's info then auth is searching info in sql for another portion of users and this loop in log continues. Dovecot.conf: http://pastebin.com/ueCBU3bP dovecot.sql: http://pastebin.com/kqCq52mC dovecot.log http://pastebin.com/YiyMWpx1 exim.conf: http://pastebin.com/F4MNQkAx exim.log: http://pastebin.com/wn83TZpX

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[Dovecot] On IMAP vhost login, only Username being used
by hobie＠rumormillnews.com 25 Aug '11

25 Aug '11

Attempting IMAP SSL login on new installation, using Icedove (Debain Thunderbird variant), login fails. Logs show Dovecot attempting to match username only, not username with domain name, on Vpopmail user, so of course no match. Tried with '@' in full username, also with '%'. What's missing? Log shows: Aug 24 19:30:48 debian dovecot: auth: Debug: client in: CONT<hidden> Aug 24 19:30:48 debian dovecot: auth: Debug: Loading modules from directory: /usr/local/lib/dovecot/auth Aug 24 19:30:48 debian dovecot: auth: Debug: vpopmail(postmaster,[IP redacted]): lookup user=postmaster domain= Current config: # 2.0.13: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.2 ext3 auth_debug = yes auth_verbose = yes disable_plaintext_auth = no first_valid_gid = 89 first_valid_uid = 89 mail_debug = yes mail_location = maildir:/home/vpopmail/domains/%d/%n/Maildir maildir_very_dirty_syncs = yes passdb { driver = vpopmail } protocols = imap pop3 ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { args = quota_template=quota_rule=*:backend=%q driver = vpopmail } --hobie

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[Dovecot] Post-login scripting with virtual users
by Mark Willcox 25 Aug '11

25 Aug '11

I am running Dovecot 2.0.13 on Fedora 15. I have migrated from a bincimap installation using checklocalpwd. All email is in folders owned by a unprivileged user, popuser. The email users are entirely virtual and have no relationship to actual linux users. My userdb calls return the UID and GID of popuser and all goes well retrieving the mail via POP3 and IMAP. I am trying to implement a Post-login script to register the IP address that the authentication came from. Dovecot seems to be trying to execute the script as the email non-user, which does not work. I have specified that the script should be run as popuser, but it still runs as devnull(a)dhzone.com for instance. Everything up top that point seems to be happening happily under popuser. I added a "user = popuser" directive and it had no effect that I could see. I know that dovecot read the directive because I changed it to "user = 555" and dovecot would not run because "555" is not a user. I tried adding a "User = popuser" within the unix_listener but that also had no effect. Any ideas? Thank you! ------------------------------ Here is my dovecot -n: # 2.0.13: /etc/dovecot/dovecot.conf # OS: Linux 2.6.40.3-0.fc15.x86_64 x86_64 Fedora release 15 (Lovelock) auth_debug = yes disable_plaintext_auth = no mail_debug = yes mbox_write_locks = fcntl passdb { args = /etc/dovecot/conf.d/dovecot-sql.conf.ext driver = sql } protocols = imap pop3 service imap-postpop { executable = script-login /usr/local/bin/set_postpop unix_listener imap-postpop { } user = popuser } service imap { executable = imap imap-postpop } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = /etc/dovecot/conf.d/dovecot-sql.conf.ext driver = sql } ----------------------------------------------------- The dovecot-sql.conf.ext looks like this: driver = mysql connect = host=localhost dbname=webmail user=xxxx password=xxxx password_query = SELECT id AS user, IF( clear IS NULL, CONCAT('{CRYPT}',crypto), CONCAT('{PLAIN}',clear)) AS password \ FROM users WHERE id = '%u' user_query = SELECT home, uid, gid \ FROM users WHERE id = '%u' ------------------------------- >From the maillog: Aug 24 13:01:57 callisto dovecot: auth: Debug: client out: OK#0111#011user=devnull(a)dhzone.com Aug 24 13:01:57 callisto dovecot: auth: Debug: master in: REQUEST... Aug 24 13:01:57 callisto dovecot: auth: Debug: sql(devnull(a)dhzone.com,75.221.209.232): SELECT home, uid, gid FROM users WHERE id = 'devnull(a)dhzone.com' Aug 24 13:01:57 callisto dovecot: auth: Debug: master out: USER#0114007264257#011devnull@dhzone.com#011home=/var/qmail/popbox/dhzone-com/devnull#011uid=555#011gid=555 Aug 24 13:01:57 callisto dovecot: imap-login: Login: user=<devnull(a)dhzone.com>, method=PLAIN, rip=75.221.209.232, lip=76.76.59.241, mpid=667 Aug 24 13:01:57 callisto dovecot: imap-postpop: Error: script-login: Error: user devnull(a)dhzone.com: Error reading configuration: net_connect_unix(/var/run/dovecot/config) failed: Permission denied Aug 24 13:01:57 callisto dovecot: imap-postpop: Error: script-login: Fatal: Internal error occurred. Refer to server log for more information. Aug 24 13:01:57 callisto dovecot: imap(devnull(a)dhzone.com): Post-login script denied access to user devnull(a)dhzone.com Aug 24 13:01:57 callisto dovecot: log: Error: service(imap-postpop): child 668 returned error 89 (Fatal failure) Aug 24 13:02:03 callisto dovecot: master: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill) -- _________________ Mark Willcox Data Helper, Inc.

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[Dovecot] Dovecot rejecting Vpopmail User 89
by hobie＠rumormillnews.com 24 Aug '11

24 Aug '11

I'm working to get Dovecot 2.0.13 working along with qmail, Vpopmail and Squirrelmail on a Debian 6.0.2 system, Dovecot compiled, not from a package. Vpopmail has a widely known assigned user/group ID of 89 and is the owner of all the mail folders. Regardless of value of first_valid_uid (1, 89, other), Dovecot denies Squirrelmail connection, saying it can't allow access to UID 89. "Couldn't drop privileges", it says. I'd be grateful for fixes, suggestions, or a pointer to an existing answer to this problem. Thanks ahead. :) Presently dovecot -n shows: # 2.0.13: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.2 ext3 auth_debug = yes disable_plaintext_auth = no mail_debug = yes mail_location = maildir:/home/vpopmail/domains/%d/%n/Maildir maildir_very_dirty_syncs = yes passdb { driver = vpopmail } protocols = imap pop3 ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } userdb { args = quota_template=quota_rule=*:backend=%q driver = vpopmail } --hobie

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