- dovecot - dovecot.org

[Dovecot] INBOX and IMAP forlders on differents machines ?
by Frank Bonnet 30 Jan '12

30 Jan '12

Hello In MBOX format would it be possible with dovecot 2 to have two machines one containing the INBOX and the other containing IMAP folders. Of course this need a frontend but would it be possible ? thanks

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[Dovecot] Director to keep redirecting users to the same server even after all sessions closed?
by Mark Zealey 30 Jan '12

30 Jan '12

Hi there, Just wondering how easy it would be to make the director continue to send a user to the same server (assuming it's still in the pool) for say 90 seconds after they have last been active (ie lmtp or pop/imap)? Basically we are working in quite a heavily cached environment so it takes perhaps 60-90 seconds for our imap servers to properly flush to our network storage meaning if the user got put on a different server in that time we would see some issues. Presently we have fixed proxying, but I'd really like to use the director if possible to allow us to more easily add & remove servers. Mark

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[Dovecot] UID 0 problem while issuing an UID THREAD REFS command
by Jesús M. Navarro 30 Jan '12

30 Jan '12

Hi: This is my first message to this list, so pleased to meet you all. Using dovecot 2.0.17 from packages at xi.rename-it.nl on a Debian "Squeeze" i686. Mail storage is a local ext3 partition (I attached the output of dovecot -n to this message). I'm having problems on a maildir due to dovecot returning an UID 0 to an UID THREAD REFS command: in <== TAG5 UID THREAD REFS us-ascii SINCE 18-Jul-2011 out <== * THREAD (0)(51 52)(53)(54 55 56)(57)(58)(59 60)(61) TAG5 OK Thread completed. The issuer is an atmail webmail that after the previous output will try an UID FETCH 0 that will fail with a "TAG6 BAD Error in IMAP command UID FETCH: Invalid uidset" message. I think that, as per a previous answer from Timo Sirainen*1, this should be considered a dovecot's bug, am I right? Anyway, what should I try to find why is this exactly happening? TIA *1 http://www.dovecot.org/list/dovecot/2011-November/061992.html

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[Dovecot] problem compiling imaptest under solaris
by Jürgen Obermann 30 Jan '12

30 Jan '12

Hallo, today I tried to compile imaptest under solaris 10 with studio 11 compiler and got the following error: gmake[2]: Entering directory `/net/fileserv/export/sunsrc/src/imaptest-20111119/src' source='client.c' object='client.o' libtool=no \ DEPDIR=.deps depmode=none /bin/bash ../depcomp \ cc -DHAVE_CONFIG_H -I. -I. -I.. -I/opt/local/include/dovecot -I/usr/local/include -fast -xarch=v8plusa -I/usr/sfw/include -c client.c "/opt/local/include/dovecot/imap-util.h", line 6: warning: useless declaration "client-state.h", line 6: warning: useless declaration "client.c", line 655: operand cannot have void type: op "==" "client.c", line 655: operands have incompatible types: const void "==" int cc: acomp failed for client.c what can I do? Thanks for any help, Jürgen -- Jürgen Obermann Hochschulrechenzentrum der Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 44 Tel. 0641-9913054

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[Dovecot] Mountpoints
by Timo Sirainen 30 Jan '12

30 Jan '12

I've been thinking about mountpoints recently. There have been a few problems related to them: - If dbox mails and indexes are in different filesystems, and index fs isn't mounted and mailbox is accessed -> Dovecot rebuilds indexes from scratch, which changes UIDVALIDITY, which causes client to redownload mails. All mails will also show up as unread. Once index fs gets mounted again, the UIDVALIDITY changes again and client again redownloads mails. What should happen instead is that Dovecot simply refuses to rebuild indexes when the index fs isn't mounted. This isn't as critical for mbox/maildir, but probably a good idea to do there as well. - If dbox's alternative storage isn't mounted and a mail from there is tried to be accessed -> Dovecot rebuilds indexes and sees that all mails in alt path are gone, so Dovecot also deletes them from indexes as well. Once alt fs is mounted again, the mails in there won't come back without manual index rebuild and then they have also lost flags and have updated UIDs causing clients to redownload them. So again what should happen is that Dovecot won't rebuild indexes while alt fs isn't mounted. - For dsync-based replication I need to keep a state of each mountpoint (online, offline, failover) to determine how to access user's mails. So in the first two cases the main problem is: How does Dovecot know where a mountpoint begins? If the mountpoint is actually mounted there is no problem, because there are functions to find it (e.g. from /etc/mtab). So how to find a mountpoint that should exist, but doesn't? In some OSes Dovecot could maybe read and parse /etc/fstab, but that doesn't exist in all OSes, and do all installations even have all of the filesystems listed there anyway? (They could be in some startup script.) So, I was thinking about adding doveadm commands to explicitly tell Dovecot about the mountpoints that it needs to care about. When no mountpoints are defined Dovecot would behave as it does now. doveadm mount add|remove <path> - add/remove mountpoint doveadm mount state [<path> [<state>]] - get/set state of mountpoint (used by replication) - if path isn't given list states of all mountpoints List of mountpoints is kept in /var/lib/dovecot/mounts. But because the dovecot directory is only accessible to root (and probably too much trouble to change that), there's another list in /var/run/dovecot/mounts. This one also contains the states of the mounts. When Dovecot starts up and can't find the mounts from rundir, it creates it from vardir's mounts. When mail processes notice that a directory is missing, it usually autocreates it. With mountpoints enabled, Dovecot first finds the root mountpoint for the directory. The mount root is stat()ed and its parent is stat()ed. If their device numbers equal, the filesystem is unmounted currently, and Dovecot fails instead of creating a new directory. Similar logic is used to avoid doing a dbox rebuild if its alt dir is currently in unmounted filesystem. The main problem I see with all this is how to make sysadmins remember to use these commands when they add/remove mountpoints?.. Perhaps the additions could be automatic at startup. Whenever Dovecot sees a new mountpoint, it's added. If an old mountpoint doesn't exist at startup a warning is logged about it. Of course many of the mountpoints aren't intended for mail storage. They could be hidden from the "mount state" list by setting their state to "ignore". Dovecot could also skip some of the common known mountpoints, such as where type is proc/tmpfs/sysfs. Thoughts?

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[Dovecot] A namespace error on 2.1rc5
by Bill Ryder 30 Jan '12

30 Jan '12

Hello all, I'm not sure if this is a bug. It's probably just an upgrade note. In summary I had no namespace section in my 2.0.17 config. When trying out 2.1rc5 no user could login because of a namespace error. 2.1rc5 adds a default namespace clause which broke my logins (It was noted in the changelog) I seemed to fix it by just putting this in the config file: namespace inbox { inbox = yes } Long story: I've been recently testing dovecot against cyrus to decide where we should go for our next mail server(s) I loaded up the mail server with mail delivered via postfix all on dovecot 2.0.15 (I've since moved to 2.0.17) I have three dovecot directors, two backends on the same NFS mail store. With dovecot 2.0.xx the tester works fine (it't just a script which logins in and emulates thunderbird when a user is idle - without using IDLE so the client asks for mail every few minutes). When I moved to 2.1rc5 I got namespace errors and the user can not login. The server said: dovecot-error.log-20120128:Jan 27 13:37:59 imap(ethab01): Error: user ethab01: Initialization failed: namespace configuration error: inbox=yes namespace missing The client says: * BYE Internal error occurred. Refer to server log for more information. The session looks like 0.000000 192.168.121.37 -> 192.168.121.2 TCP 33213 > imap [SYN] Seq=0 Win=5840 Len=0 MSS=1460 TSV=1056649457 TSER=0 WS=5 0.000036 192.168.121.2 -> 192.168.121.37 TCP imap > 33213 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=3264407631 TSER=1056649457 WS=7 0.000187 192.168.121.37 -> 192.168.121.2 TCP 33213 > imap [ACK] Seq=1 Ack=1 Win=5856 Len=0 TSV=1056649458 TSER=3264407631 0.006338 192.168.121.2 -> 192.168.121.37 IMAP Response: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready. 0.006889 192.168.121.37 -> 192.168.121.2 TCP 33213 > imap [ACK] Seq=1 Ack=124 Win=5856 Len=0 TSV=1056649465 TSER=3264407637 0.006973 192.168.121.37 -> 192.168.121.2 IMAP Request: I ID ("x-originating-ip" "192.168.114.249" "x-originating-port" "49403" "x-connected-ip" "192.168.121.37" "x-connected-port" "143") 0.006980 192.168.121.2 -> 192.168.121.37 TCP imap > 33213 [ACK] Seq=124 Ack=178 Win=6912 Len=0 TSV=3264407638 TSER=1056649465 0.007086 192.168.121.2 -> 192.168.121.37 IMAP Response: * ID NIL 0.018471 192.168.121.2 -> 192.168.121.37 IMAP Response: * BYE Internal error occurred. Refer to server log for more information. (interestingly the tshark output strips out the user name and password which is convenient but which may mean there's not enough information?) I rolled back to 2.0.17 and it was fine again. It's the same config files for both, same maildirs etc etc. All I did was change the dovecot version from 2.0.17 to 2.1rc5 However I see from the changelog that 2.1rc5 added a default namespace inbox: diff doveconf-n.2.0.17 doveconf-n.2.1-rc5 1c1 < # 2.0.17 (684381041dc4+): /etc/dovecot/dovecot.conf --- > # 2.1.rc5: /etc/dovecot/dovecot.conf 20a21,39 > namespace inbox { > location = > mailbox Drafts { > special_use = \Drafts > } > mailbox Junk { > special_use = \Junk > } > mailbox Sent { > special_use = \Sent > } > mailbox "Sent Messages" { > special_use = \Sent > } > mailbox Trash { > special_use = \Trash > } > prefix = > } We had this section commented out in 2.0.x so there was no namespace inbox anywhere. ============== doveconf -n for 2.0.17 (for the backends) # 2.0.17 (684381041dc4+): /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-131.6.1.el6.x86_64 x86_64 Scientific Linux release 6.1 (Carbon) nfs auth_mechanisms = plain login auth_username_format = %n auth_verbose = yes debug_log_path = /var/log/dovecot/dovecot-debug.log disable_plaintext_auth = no first_valid_uid = 200 info_log_path = /var/log/dovecot/dovecot-info.log log_path = /var/log/dovecot/dovecot-error.log mail_debug = yes mail_fsync = always mail_gid = vmail mail_location = maildir:/vol/dt_mailstore1/spool/%n:INDEX=/var/indexes/%n mail_nfs_storage = yes mail_plugins = " fts fts_solr mail_log notify quota" mail_uid = vmail maildir_very_dirty_syncs = yes 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 ihave passdb { driver = pam } plugin { autocreate = Trash autocreate2 = Drafts autocreate3 = Sent autocreate4 = Templates autosubscribe = Trash autosubscribe2 = Drafts autosubscribe3 = Sent autosubscribe4 = Templates fts = solr fts_solr = break-imap-search debug url=http://dovecot-solr1.wetafx.co.nz:8080/solr/ mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap pop3 lmtp sieve service auth { unix_listener auth-userdb { group = vmail user = vmail } } service lmtp { inet_listener lmtp { address = 192.168.121.2 127.0.0.1 port = 24 } process_min_avail = 20 unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=vmail gid=vmail home=/vol/dt_mailstore1/%n/%u driver = passwd } protocol lmtp { mail_plugins = sieve } protocol lda { mail_plugins = " fts fts_solr mail_log notify quota sieve" } protocol imap { mail_plugins = " fts fts_solr mail_log notify quota imap_quota" } protocol sieve { managesieve_notify_capability = managesieve_sieve_capability = } ===== doveconf for 2.1rc5 # 2.1.rc5: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-131.6.1.el6.x86_64 x86_64 Scientific Linux release 6.1 (Carbon) nfs auth_mechanisms = plain login auth_username_format = %n auth_verbose = yes debug_log_path = /var/log/dovecot/dovecot-debug.log disable_plaintext_auth = no first_valid_uid = 200 info_log_path = /var/log/dovecot/dovecot-info.log log_path = /var/log/dovecot/dovecot-error.log mail_debug = yes mail_fsync = always mail_gid = vmail mail_location = maildir:/vol/dt_mailstore1/spool/%n:INDEX=/var/indexes/%n mail_nfs_storage = yes mail_plugins = " fts fts_solr mail_log notify quota" mail_uid = vmail maildir_very_dirty_syncs = yes 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 ihave namespace inbox { location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { autocreate = Trash autocreate2 = Drafts autocreate3 = Sent autocreate4 = Templates autosubscribe = Trash autosubscribe2 = Drafts autosubscribe3 = Sent autosubscribe4 = Templates fts = solr fts_solr = break-imap-search debug url=http://dovecot-solr1.wetafx.co.nz:8080/solr/ mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap pop3 lmtp sieve service auth { unix_listener auth-userdb { group = vmail user = vmail } } service lmtp { inet_listener lmtp { address = 192.168.121.2 127.0.0.1 port = 24 } process_min_avail = 20 unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=vmail gid=vmail home=/vol/dt_mailstore1/%n/%u driver = passwd } protocol lmtp { mail_plugins = sieve } protocol lda { mail_plugins = " fts fts_solr mail_log notify quota sieve" } protocol imap { mail_plugins = " fts fts_solr mail_log notify quota imap_quota" } protocol sieve { managesieve_notify_capability = managesieve_sieve_capability = }

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[Dovecot] 2.1.rc3 (1a722c7676bb): Panic: file ostream.c: line 173 (o_stream_sendv): assertion failed: (stream->stream_errno != 0)
by Pascal Volk 30 Jan '12

30 Jan '12

Hi Timo, today some imap processes are crashed. Regards, Pascal -- The trapper recommends today: f007ba11.1201322(a)localdomain.org

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[Dovecot] imap-login process_limit reached
by Don Buchholz 29 Jan '12

29 Jan '12

I've been having some problems with IMAP user connections to the Dovecot (v2.0.8) server. The following message is being logged. Jan 16 10:51:36 postal dovecot: master: Warning: service(imap-login): process_limit reached, client connections are being dropped The server is running Red Hat Enterprise Linux release 4 (update 6). Dovecot is v2.0.8. We have only 29 user accounts in /etc/dovecot/users. There were 196 "dovecot/imap" processes and 6 other dovecot processes, for a total of 202 "dovecot" processes, listed in the 'ps aux' output when problems were being experienced. Stopping and restarting the Dovecot system fixes the problem -- for a while. The 'doveconf -n' output is attached. I have not set any "process_limit" values, and I don't think I'm getting anywhere close to the 1024 default, so I'm pretty confused as to what might be wrong. Any suggestions on what to do next are appreciated. Thanks, - Don ------------------------------------------------------------------------ # 2.0.8: /etc/dovecot/dovecot.conf # OS: Linux 2.6.9-67.0.1.ELsmp i686 Red Hat Enterprise Linux WS release 4 (Nahant Update 6) ext3 auth_username_format = %Lu auth_verbose = yes auth_verbose_passwords = sha1 login_log_format_elements = user=<%u> service=%Us method=%m rip=%r lip=%l mpid=%e %c login_trusted_networks = xx.xx.xx.0/24 mail_location = maildir:/Virtual_Users/%u/Mail passdb { args = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } passdb { driver = pam } ssl_ca = </etc/dovecot/ssl/iMove_2011_CAcert.pem ssl_cert = </etc/dovecot/ssl/postal_cert.pem ssl_key = </etc/dovecot/ssl/postal_key+req.pem ssl_key_password = ********** ssl_parameters_regenerate = 12 userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } userdb { driver = passwd } verbose_proctitle = yes protocol imap { ssl_cert = </etc/dovecot/ssl/imap_cert.pem ssl_key = </etc/dovecot/ssl/imap_key+req.pem ssl_key_password = </etc/dovecot/ssl/imap.pw } protocol pop3 { ssl_cert = </etc/dovecot/ssl/pop3_cert.pem ssl_key = </etc/dovecot/ssl/pop3_key+req.pem ssl_key_password = </etc/dovecot/ssl/pop3.pw }

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[Dovecot] XFS Developer Takes Shots At Btrfs, EXT4
by Adrian Minta 29 Jan '12

29 Jan '12

Nice article about XFS improvements: http://tinyurl.com/7pvr9ju

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[Dovecot] 2.1.rc1 (056934abd2ef): virtual plugin mailbox search pattern
by e-frog 29 Jan '12

29 Jan '12

Hello Timo, With dovecot 2.1.rc1 (056934abd2ef) there seems to be something wrong with virtual plugin mailbox search patterns. I'm using a virtual mailbox 'unread' with the following dovecot-virtual file $ cat dovecot-virtual * unseen For testing propose I created the following folders with each containing one unread message INBOX, INBOX/level1 and INBOX/level1/level2 2.1.rc1 (056934abd2ef) 1 LIST "" "*" * LIST (\HasChildren) "/" "INBOX" * LIST (\HasChildren) "/" "INBOX/level1" * LIST (\HasNoChildren) "/" "INBOX/level1/level2" * LIST (\HasChildren) "/" "virtual" * LIST (\HasNoChildren) "/" "virtual/unread" 1 OK List completed. 2 STATUS "INBOX" (UNSEEN) * STATUS "INBOX" (UNSEEN 1) 2 OK Status completed. 3 STATUS "INBOX/level1" (UNSEEN) * STATUS "INBOX/level1" (UNSEEN 1) 3 OK Status completed. 4 STATUS "INBOX/level1/level2" (UNSEEN) * STATUS "INBOX/level1/level2" (UNSEEN 1) 4 OK Status completed. 5 STATUS "virtual/unread" (UNSEEN) * STATUS "virtual/unread" (UNSEEN 1) 5 OK Status completed. Result: virtual/unread shows only 1 unseen message. Further tests showed it's the one from INBOX. The mails from the deeper levels are not found. Downgrading to 2.0.16 restores the correct behavior: 1 LIST "" "*" * LIST (\HasChildren) "/" "INBOX" * LIST (\HasChildren) "/" "INBOX/level1" * LIST (\HasNoChildren) "/" "INBOX/level1/level2" * LIST (\HasChildren) "/" "virtual" * LIST (\HasNoChildren) "/" "virtual/unread" 1 OK List completed. 2 STATUS "INBOX" (UNSEEN) * STATUS "INBOX" (UNSEEN 1) 2 OK Status completed. 3 STATUS "INBOX/level1" (UNSEEN) * STATUS "INBOX/level1" (UNSEEN 1) 3 OK Status completed. 4 STATUS "INBOX/level1/level2" (UNSEEN) * STATUS "INBOX/level1/level2" (UNSEEN 1) 4 OK Status completed. 5 STATUS "virtual/unread" (UNSEEN) * STATUS "virtual/unread" (UNSEEN 3) 5 OK Status completed. Result: virtual/unread shows 3 unseen messages as it should The namespace configuration is as following namespace { hidden = no inbox = yes list = yes location = prefix = separator = / subscriptions = yes type = private } namespace { location = virtual:~/virtual prefix = virtual/ separator = / subscriptions = no type = private } I've also tried this with location = virtual:~/virtual:LAYOUT=maildir++ leading to the same result. Thanks, e-frog

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[Dovecot] Migration to multi-dbox and SiS
by Ronald MacDonald 29 Jan '12

29 Jan '12

Dear list, A huge thank-you first of all for all the work that's gone into Dovecot itself. I'm rebuilding a mail server next week and so, taking the rare opportunity to re-consider all the options I've had running over the past couple of years. Around the time of the last re-build (2010), there had been some discussion on single instance storage, which was quite new on Dovecot around then. I chickened out of setting it up though. Now with it having been in the wild for a couple of years, I wonder, how have people found SiS to behave? Additionally, though there was talk of the prospect of it being merged with 2.x am I right in thinking it's not yet in the main project? Couldn't find any 2.x changelogs that could confirm this. With best wishes, Ronald.

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[Dovecot] Attribute Cache flush errors on FreeBSD 8.2
by Phil Kernick 29 Jan '12

29 Jan '12

I'm running dovecot 2.0.16 on FreeBSD 8.2 with the mail spool and indexes on an NFS server. Lines like the following keep appearing in syslog for access to each mailbox: Error: nfs_flush_attr_cache_fd_locked: fchown(/home/philk/Mail/Deleted) failed: Bad file descriptor This is coming from nfs-workarounds.c line 210, which tracing back seems to be coming from the call to mbox_lock on lib-storage/index/mbox/mbox-lock.c line 774. I have /home mounted with options acregmin=0,acregmax=0,acdirmin=0,acdirmax=0 (as FreeBSD doesn't have a noac option), but it throws the same error either way. The output of dovecot -n is below. Phil. # 2.0.16: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 8.2-RELEASE-p3 i386 auth_mechanisms = plain login auth_username_format = %Lu disable_plaintext_auth = no first_valid_gid = 1000 first_valid_uid = 1000 listen = *, [::] mail_fsync = always mail_location = mbox:~/Mail/:INBOX=/var/mail/%u mail_nfs_index = yes mail_nfs_storage = yes mail_privileged_group = mail mmap_disable = yes passdb { args = session=yes dovecot driver = pam } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { args = blocking=yes 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)example.com sendmail_path = /usr/sbin/sendmail }

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[Dovecot] 2.0.17: Index lost -> SAVEDON lost as well?
by Ralf Hildebrandt 29 Jan '12

29 Jan '12

Today I encoundered these errors: Jan 9 08:30:06 mail dovecot: lmtp(31174, backup(a)backup.invalid) Error: Log synchronization error at seq=858,offset=44672 for /home/mailboxname/mdbox/storage/dovecot.map.index: Append with UID 282388, but next_uid = 282389 Jan 9 08:30:06 mail dovecot: lmtp(31819, backup(a)backup.invalid) Error: Log synchronization error at seq=858,offset=44672 for /home/mailboxname/mdbox/storage/dovecot.map.index: Append with UID 282388, but next_uid = 282389 Jan 9 08:30:06 mail dovecot: lmtp(32148, backup(a)backup.invalid) Error: Log synchronization error at seq=858,offset=44672 for /home/mailboxname/mdbox/storage/dovecot.map.index: Append with UID 282388, but next_uid = 282389 After that, the SAVEDON date for all mails was reset to today: mail:~# doveadm search -u backup(a)backup.invalid mailbox INBOX SAVEDON 2012-01-09 | wc -l 75650 mail:~# doveadm search -u backup(a)backup.invalid mailbox INBOX SAVEDON 2012-01-08 | wc -l 0 mail:~# doveadm search -u backup(a)backup.invalid mailbox INBOX SAVEDON 2012-01-07 | wc -l 0 Before, I was running this: vorgestern=`date -d "-2 day" +"%Y-%m-%d"` doveadm expunge -u backup(a)backup.invalid mailbox INBOX SAVEDBEFORE $vorgestern doveadm purge -u backup(a)backup.invalid Is there a way of restoring the SAVEDON info? -- 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

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[Dovecot] compressed mboxes very slow
by kjonca＠o2.pl 29 Jan '12

29 Jan '12

I have some archive mails in gzipped mboxes. I could use them with dovecot 1.x without problems. But recently I have installed dovecot 2.0.12, and they are slow. very slow. Creating index files takes about 10 minutes for ~20M file with 560 messages for bzipped mbox, for gzipped is little better but still unusable :( Stracing dovecot process shows that every ~ 20 messages it rereads complete mbox file. Am I doing something wrong? KJ -- http://modnebzdury.wordpress.com/2009/10/01/niewiarygodny-list-prof-majewsk…

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[Dovecot] maildir vs mdbox
by Jean-Daniel Beaubien 29 Jan '12

29 Jan '12

Hi, I am planning on running on test between maildir and mdbox to see which is a better fit for my use case. And I'm just looking for general advice/recommendation. I will post any results I obtain here. Important question: I have multiple users hitting the same email account at the same time. Can be a problem with mdbox? (either via thunderbird or with custom webmail apps). I remember having huge issues with mbox a decade ago because of this. Maildir fixed this... will mdbox reintroduce this problem? This is a very important point for me. Here is my use case: - Ubuntu server (any specific recommandations on FS to use?) - Standard PC hardware (core i5 or i7, few gigs of ram, hdds at first, probably ssd afterwards, nothing very fancy) - Serving only a hand full of email accounts but some of the accounst have over 3 millions emails in them (with individual mail folders having 100k+ emails) - Will use latest dovecot (2.1 when it comes out) - fts-lucene or fts-solr? -jd

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[Dovecot] sieve under lmtp using wrong homedir ?
by Frank Post 29 Jan '12

29 Jan '12

Hi, i have a problem with dovecot-2.0.15. All is working well except lmtp. Sieve scripts are correctly saved under /var/vmail/test.com/test/sieve, but under lmtp sieve will use /var/vmail//testuser/ Uid testuser has mail=test(a)test.com configured in ldap. As i could see in the debug logs, there is a difference between the auth "master out" lines, but why ? working if managesieve stores scripts: Jan 11 15:02:42 auth: Debug: master in: REQUEST 3533701121 23001 1 7ec31d3c65cb934785e8eb0f33a182ae Jan 11 15:02:42 auth: Debug: ldap(test(a)test.com,10.234.201.4): result: mail(user)=test(a)test.com Jan 11 15:02:42 auth: Debug: master out: USER 3533701121 test(a)test.com home=/var/vmail/test.com/test uid=5000 gid=5000 Jan 11 15:02:42 managesieve(test(a)test.com): Debug: Effective uid=5000, gid=5000, home=/var/vmail/test.com/test but under lmtp not: Jan 11 14:39:53 auth: Debug: master in: USER 1 testuser service=lmtp lip=10.234.201.9 rip=10.234.201.4 Jan 11 14:39:53 auth: Debug: auth(testuser,10.234.201.4): username changed testuser -> test(a)test.com Jan 11 14:39:53 auth: Debug: ldap(test(a)test.com,10.234.201.4): result: mail(user)=test(a)test.com Jan 11 14:39:53 auth: Debug: master out: USER 1 test(a)test.com home=/var/vmail//testuser uid=5000 gid=5000 Jan 11 14:39:53 lmtp(8499): Debug: auth input: test(a)test.com home=/var/vmail//testuser uid=5000 gid=5000 Jan 11 14:39:53 lmtp(8499): Debug: changed username to test(a)test.com Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: Effective uid=5000, gid=5000, home=/var/vmail//testuser Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: Quota root: name=User quota backend=maildir args= Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: Quota rule: root=User quota mailbox=* bytes=2147483648 messages=0 Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: Quota warning: bytes=1932735283 (90%) messages=0 reverse=no command=quota-warning 90 test(a)test.com Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: maildir++: root=/var/vmail/test.com/test/Maildir, index=/var/dovecot/indexes/test.com/test, control=, inbox=/var/vmail/test.com/test/Maildir, alt= Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: trash: No trash setting - plugin disabled Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: sieve: include: sieve_global_dir is not set; it is currently not possible to include `:global' scripts. Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: pla8CymRDU8zIQAAFrfQGQ: sieve: user's script path /var/vmail//testuser/.dovecot.sieve doesn't exist (using global script path in stead) Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: pla8CymRDU8zIQAAFrfQGQ: sieve: user has no valid personal script Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: pla8CymRDU8zIQAAFrfQGQ: sieve: no scripts to execute: reverting to default delivery. Jan 11 14:39:53 lmtp(8499, test(a)test.com) Debug: Namespace : Using permissions from /var/vmail/test.com/test/Maildir: mode=0700 gid=-1 Thanks, for your help. Frank

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Re: [Dovecot] A small bug and a question about CONTEXT=SEARCH
by Anders 29 Jan '12

29 Jan '12

On Tue, 2012-01-10 at 15:05 +0100, Anders wrote: > > the socket connection being closed without warning: > > UID SEARCH RETURN (SAVE COUNT) CHARSET UTF-8 (UNDELETED TEXT "foo") > > You mean it closes with above also? It works fine with me. No, that also works fine here :-) > > UID SEARCH RETURN (COUNT MIN) CHARSET UTF-8 () $ > > This was fixed in v2.0.17. Great, thanks! > > Then I have question about RFC5267 and the announcement of > > CONTEXT=SEARCH > > in the capabilities. I think this RFC is supported by dovecot, or maybe > > just part of the RFC is supported? > > All of it is supported, as far as I know. > > At least when I include the CONTEXT ADDTO or REMOVEFROM keywords I get > > an error, > These are server notifications. Clients aren't supposed to send them. Sorry, apparently I was a bit too fast there. ADDTO and REMOVEFROM should not be sent by a client, but I think that a client can send CONTEXT as a hint to the server, see http://tools.ietf.org/html/rfc5267#section-4.2 Thanks! Regards Anders

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[Dovecot] howto disable indexing on dovecot-lda ?
by Adrian Minta 28 Jan '12

28 Jan '12

Hello, is it possible to disable indexing on dovecot-lda ? Right now postfix delivers the mail directly to the nfs server without any problems. If I switch to dovecot-lda the system crashes do to the high I/O and locking. Indexing on lda is not very useful because the number of of imap logins is less than 5% that of incoming mails, so an user could wait for 3 sec to get his mail index, but a new mail can't. Dovecot version 1.2.15 mail_nfs_storage = yes mail_nfs_index = yes Than you !

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[Dovecot] dovecot 2.0.15 - purge errors
by kjonca＠o2.pl 28 Jan '12

28 Jan '12

Dovecot 2.0.15, debian package, am I lost some mails? How can I check what is in *.broken file? --8<---------------cut here---------------start------------->8--- $doveadm -v purge doveadm(kjonca): Error: Corrupted dbox file /home/kjonca/Mail/0/storage/m.6469 (around offset=291530): purging found mismatched offsets (291500 vs 299692, 60/215) doveadm(kjonca): Warning: mdbox /home/kjonca/Mail/0/storage: rebuilding indexes doveadm(kjonca): Error: Corrupted dbox file /home/kjonca/Mail/0/storage/m.6469 (around offset=599914): metadata header has bad magic value doveadm(kjonca): Warning: dbox: Copy of the broken file saved to /home/kjonca/Mail/0/storage/m.6469.broken doveadm(kjonca): Warning: Transaction log file /home/kjonca/Mail/0/storage/dovecot.map.index.log was locked for 211 seconds doveadm(kjonca): Error: Purging namespace '' failed: Internal error occurred. Refer to server log for more information. [2012-01-13 06:45:07] --8<---------------cut here---------------end--------------->8--- doveconf -n --8<---------------cut here---------------start------------->8--- # 2.0.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.38+3-64 x86_64 Debian wheezy/sid auth_debug = yes auth_mechanisms = digest-md5 cram-md5 login plain auth_verbose = yes listen = alfa log_path = /var/log/dovecot log_timestamp = "%Y-%m-%d %H:%M:%S " mail_debug = yes mail_location = mdbox:~/Mail/0 mail_log_prefix = "%Us(%u): " mail_plugins = zlib notify acl mail_privileged_group = mail namespace { hidden = no inbox = yes list = yes location = prefix = separator = / subscriptions = yes type = private } namespace { hidden = no inbox = no list = yes location = mbox:~/Mail/Old:CONTROL=~/Mail/.dovecot/control/Old:INDEX=~/Mail/.dovecot/index/Old prefix = "#Old/" separator = / subscriptions = yes type = private } passdb { args = scheme=PLAIN /etc/security/dovecot.pwd driver = passwd-file } plugin { acl = vfile mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size zlib_save = bz2 zlib_save_level = 9 } protocols = imap service auth { user = root } service imap-login { process_limit = 2 process_min_avail = 1 } service imap { vsz_limit = 512 M } service pop3-login { process_limit = 2 process_min_avail = 1 } service pop3 { vsz_limit = 512 M } ssl = no userdb { driver = passwd } verbose_proctitle = yes protocol imap { mail_max_userip_connections = 20 mail_plugins = zlib imap_zlib mail_log notify acl } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } protocol lda { deliver_log_format = msgid=%m: %$ log_path = ~/log/deliver.log postmaster_address = root@localhost } --8<---------------cut here---------------end--------------->8--- -- Gdyby ktoś miał zbędny Toshiba G450 - to chętnie przejmę ;) ---------------- Biologia poucza, ze jeśli cię coś ugryzło, to niemal pewne, ze była to samica.

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[Dovecot] 2.1.rc3 (1a722c7676bb):dsync umlaut problems
by Pascal Volk 28 Jan '12

28 Jan '12

All umlauts in mailbox names are lost after converting mbox/Maildir mailboxes to mdbox. [location2 scp-ed from the old server] # ls -d /srv/import/Maildir/.Gel\&APY-schte\ Elemente/ /srv/import/Maildir/.Gel&APY-schte Elemente/ # dsync -u jane(a)example.com -v mirror maildir:/srv/import/Maildir/ … dsync(jane(a)example.com): Info: Gelöschte Elemente: only in dest … … # doveadm mailbox list -u jane(a)example.com Gel* Gel__schte_Elemente # ls -d mdbox/mailboxes/Gel* mdbox/mailboxes/Gel__schte_Elemente Regards, Pascal -- The trapper recommends today: cafefeed.1201303(a)localdomain.org

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[Dovecot] where is subscribed list stored?
by Michael Makuch 28 Jan '12

28 Jan '12

I'm using $ /usr/sbin/dovecot --version 2.0.15 on $ cat /etc/fedora-release Fedora release 14 (Laughlin) and version 8 of Thunderbird. I use dovecot locally for internal only access to my email archives, of which I have many gigs of email archives. Over time I end up subscribing to a couple dozen different IMAP email folders. Problem is that periodically my list of subscribed folders get zapped to none, and I have to go and re-subscribe to a dozen or two folders again. Anyone seen this happen? It looks like the list of subscribed folders is here ~/Mail/.subscriptions and I can see in my daily backup that it reflects what appears in TBird. What might be zapping it? I use multiple email clients simultaneously on different hosts. (IOW I leave them open) Is this a problem? Does dovecot manage that in some way? Or is that my problem? I don't think this is the problem since this only occurs like a few times per year. If it were the problem I'd expect it to occur much more frequently. Thanks for any clues Mike

5 4

[Dovecot] Quota-warning and setresgid
by l.chelchowski 28 Jan '12

28 Jan '12

Hi! Please help me with this. The problem exists when quota-warning is executing: LOG: Jan 10 10:15:06 lmtp(85973): Debug: none: root=, index=, control=, inbox=, alt= Jan 10 10:15:06 lmtp(85973): Info: Connect from local Jan 10 10:15:06 lmtp(85973): Debug: Loading modules from directory: /usr/local/lib/dovecot Jan 10 10:15:06 lmtp(85973): Debug: Module loaded: /usr/local/lib/dovecot/lib10_quota_plugin.so Jan 10 10:15:06 lmtp(85973): Debug: Module loaded: /usr/local/lib/dovecot/lib90_sieve_plugin.so Jan 10 10:15:06 lmtp(85973): Debug: auth input: tester(a)domain.eu home=/home/vmail/domain.eu/tester/ mail=maildir:/home/vmail/domain.eu/tester/:INDEX=/var/mail/vmail/domain.eu/tester@domain.eu/index/public uid=101 gid=12 quota_rule=*:storage=2097 acl_groups= Jan 10 10:15:06 lmtp(85973): Debug: Added userdb setting: mail=maildir:/home/vmail/domain.eu/tester/:INDEX=/var/mail/vmail/domain.eu/tester@domain.eu/index/public Jan 10 10:15:06 lmtp(85973): Debug: Added userdb setting: plugin/quota_rule=*:storage=2097 Jan 10 10:15:06 lmtp(85973): Debug: Added userdb setting: plugin/acl_groups= Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Effective uid=101, gid=12, home=/home/vmail/domain.eu/tester/ Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Quota root: name=user backend=dict args=:proxy::quotadict Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Quota rule: root=user mailbox=* bytes=2147328 messages=0 Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Quota rule: root=user mailbox=Trash bytes=+429465 (20%) messages=0 Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Quota rule: root=user mailbox=SPAM bytes=+429465 (20%) messages=0 Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Quota warning: bytes=1717862 (80%) messages=0 reverse=no command=quota-warning 80 tester(a)domain.eu Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Quota warning: bytes=1932595 (90%) messages=0 reverse=no command=quota-warning 90 tester(a)domain.eu Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Quota warning: bytes=2039961 (95%) messages=0 reverse=no command=quota-warning 95 tester(a)domain.eu Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: dict quota: user=tester(a)domain.eu, uri=proxy::quotadict, noenforcing=0 Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Namespace : type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/home/vmail/domain.eu/tester/:INDEX=/var/mail/vmail/domain.eu/tester@domain.eu/index/public Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: maildir++: root=/home/vmail/domain.eu/tester, index=/var/mail/vmail/domain.eu/tester(a)domain.eu/index/public, control=, inbox=/home/vmail/domain.eu/tester, alt= Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Namespace : type=public, prefix=Public/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:/home/vmail/public/:CONTROL=/var/mail/vmail/domain.eu/tester/control/public:INDEX=/var/mail/vmail/domain.eu/tester/index/public:LAYOUT=fs Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: fs: root=/home/vmail/public, index=/var/mail/vmail/domain.eu/tester/index/public, control=/var/mail/vmail/domain.eu/tester/control/public, inbox=, alt= Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: Namespace : type=shared, prefix=Shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=no location=maildir:%h/:INDEX=/var/mail/vmail/domain.eu/tester@domain.eu/index/shared/%u Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: shared: root=/var/run/dovecot, index=, control=, inbox=, alt= ... Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Debug: quota: Executing warning: quota-warning 95 tester(a)domain.eu Jan 10 10:15:06 lmtp(85973, tester(a)domain.eu) Info: bLUfAJoBDE/VTwEA9hAjDg: sieve: msgid=<4F0C0180.3040704(a)domain.eu>: stored mail into mailbox 'INBOX' Jan 10 10:15:06 lmtp(85973): Info: Disconnect from local: Client quit (in reset) Jan 10 10:15:06 lda: Debug: Loading modules from directory: /usr/local/lib/dovecot Jan 10 10:15:06 lda: Debug: Module loaded: /usr/local/lib/dovecot/lib01_acl_plugin.so Jan 10 10:15:06 lda: Debug: Module loaded: /usr/local/lib/dovecot/lib10_quota_plugin.so Jan 10 10:15:06 lda: Debug: Module loaded: /usr/local/lib/dovecot/lib90_sieve_plugin.so Jan 10 10:15:06 lda: Debug: auth input: tester(a)domain.eu home=/home/vmail/domain.eu/tester/ mail=maildir:/home/vmail/domain.eu/tester/:INDEX=/var/mail/vmail/domain.eu/tester@domain.eu/index/public uid=101 gid=12 quota_rule=*:storage=2097 acl_groups= Jan 10 10:15:06 lda: Debug: Added userdb setting: mail=maildir:/home/vmail/domain.eu/tester/:INDEX=/var/mail/vmail/domain.eu/tester@domain.eu/index/public Jan 10 10:15:06 lda: Debug: Added userdb setting: plugin/quota_rule=*:storage=2097 Jan 10 10:15:06 lda: Debug: Added userdb setting: plugin/acl_groups= Jan 10 10:15:06 lda(tester(a)domain.eu): Fatal: setresgid(12(mail),12(mail),101(vmail)) failed with euid=101(vmail): Operation not permitted Jan 10 10:15:06 master: Error: service(quota-warning): child 85974 returned error 75 dovecot -n # 2.0.16: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 8.2-RELEASE-p3 amd64 auth_master_user_separator = * auth_mechanisms = plain login cram-md5 auth_username_format = %Lu dict { quotadict = mysql:/usr/local/etc/dovecot/dovecot-dict-sql.conf } disable_plaintext_auth = no first_valid_gid = 12 first_valid_uid = 101 log_path = /var/log/dovecot.log mail_debug = yes mail_gid = vmail mail_plugins = " quota acl" mail_privileged_group = vmail mail_uid = vmail 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 namespace { inbox = yes location = prefix = separator = / type = private } namespace { list = children location = maildir:/home/vmail/public/:CONTROL=/var/mail/vmail/%d/%n/control/public:INDEX=/var/mail/vmail/%d/%n/index/public:LAYOUT=fs prefix = Public/ separator = / subscriptions = yes type = public } namespace { list = children location = maildir:%%h/:INDEX=/var/mail/vmail/%d/%u/index/shared/%%u prefix = Shared/%%u/ separator = / subscriptions = no type = shared } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } passdb { args = /usr/local/etc/dovecot/passwd.masterusers driver = passwd-file master = yes pass = yes } plugin { acl = vfile:/usr/local/etc/dovecot/acls acl_shared_dict = file:/usr/local/etc/dovecot/shared/shared-mailboxes.db autocreate = Trash autocreate2 = Junk autocreate3 = Sent autocreate4 = Drafts autocreate5 = Archives autosubscribe = Trash autosubscribe2 = Junk autosubscribe3 = Sent autosubscribe4 = Drafts autosubscribe5 = Public/Poczta autosubscribe6 = Archives fts = squat fts_squat = partial=4 full=10 quota = dict:user::proxy::quotadict quota_rule2 = Trash:storage=+20%% quota_rule3 = SPAM:storage=+20%% quota_warning = storage=80%% quota-warning 80 %u quota_warning2 = storage=90%% quota-warning 90 %u quota_warning3 = storage=95%% quota-warning 95 %u sieve = ~/.dovecot.sieve sieve_before = /usr/local/etc/dovecot/sieve/default.sieve sieve_dir = ~/sieve sieve_global_dir = /usr/local/etc/dovecot/sieve sieve_global_path = /usr/local/etc/dovecot/sieve/default.sieve } protocols = imap pop3 sieve lmtp service auth { unix_listener /var/spool/postfix/private/auth { group = mail mode = 0660 user = postfix } unix_listener auth-userdb { group = mail mode = 0660 user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap { executable = imap postlogin } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve { drop_priv_before_exec = yes } service pop3 { drop_priv_before_exec = yes } service postlogin { executable = script-login rawlog } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { user = vmail } user = vmail } ssl = no userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } verbose_proctitle = yes protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_plugins = " acl imap_acl autocreate fts fts_squat quota imap_quota" } protocol lmtp { mail_plugins = quota sieve } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } protocol lda { deliver_log_format = msgid=%m: %$ mail_plugins = sieve acl quota postmaster_address = postmaster(a)domain.eu sendmail_path = /usr/sbin/sendmail } -- Łukasz

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[Dovecot] [PATCH] autoconf small fix
by Luca Di Vizio 28 Jan '12

28 Jan '12

Hi Timo, the attached patch seems to solve a warning from autoconf: libtoolize: Consider adding `AC_CONFIG_MACRO_DIR([m4])' to configure.in and libtoolize: rerunning libtoolize, to keep the correct libtool macros in-tree. Best regards, Luca

2 1

[Dovecot] Password auth scheme question with mysql
by Ed W 28 Jan '12

28 Jan '12

Hi, I have a current auth database using mysql with a "password" column in plain text. The config has "default_pass_scheme = PLAIN" specified In preparation for a more adaptable system I changed a password entry from "asdf" to "{PLAIN}asdf", but now auth fails. Works fine if I change it back to just "asdf". (I don't believe it's a caching problem) What might I be missing? I was under the impression that the password column can include a {scheme} prefix to indicate the password scheme (presumably this also means a password cannot start with a "{"?). Is this still true when using mysql and default_pass_scheme ? Thanks for any hints? Ed W

2 4

[Dovecot] Problem with Postfix + Dovecot + MySQL + Squirrelmail
by Gustavo 28 Jan '12

28 Jan '12

Dear friends, I try configure a webmail on my server using Postfix + Dovecot + MySQL + Squirrelmail. My system is a Debian6 and dovecot version is: #dovecot --version 1.2.15 But, when I try to access an account on squirrel I recieve this message: “ERROR Error connecting to IMAP server: localhost. 111 : Connection refused” Looking for a problem I foud this: #service dovecot start Starting IMAP/POP3 mail server: dovecotLast died with error (see error log for more information): Auth process died too early - shutting down If you have trouble with authentication failures, enable auth_debug setting. See http://wiki.dovecot.org/WhyDoesItNotWork This message goes away after the first successful login. . And the status of doveco is: #service dovecot status dovecot is not running ... failed! The other services seems to be OK: #service postfix status postfix is running. # service mysql status /usr/bin/mysqladmin Ver 8.42 Distrib 5.1.49, for debian-linux-gnu on x86_64 Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc. This software comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to modify and redistribute it under the GPL license Server version5.1.49-3 Protocol version10 ConnectionLocalhost via UNIX socket UNIX socket/var/run/mysqld/mysqld.sock Uptime:32 days 14 hours 23 min 39 sec Threads: 1 Questions: 6743 Slow queries: 0 Opens: 385 Flush tables: 1 Open tables: 47 Queries per second avg: 0.2. Looking at dovecot.conf I found some incosistences: On dovecot.conf: protocol lda { sendmail_path = /usr/lib/sendmail auth_socket_path = /var/run/dovecot/auth-master } socket listen { master { path = /var/run/dovecot/auth-master mode = 0600 user = vmail group = mail } client { path = /var/run/dovecot/auth-client mode = 0660 user = vmail group = mail } } But in the system I don1t found this files!!! /var/run/dovecot# ls total 20K drwxr-xr-x 3 root root 4.0K Jan 27 11:35 . drwxr-xr-x 8 root root 4.0K Jan 27 09:33 .. srw------- 1 root root 0 Jan 27 11:35 auth-worker.26163 srwxrwxrwx 1 root root 0 Jan 27 11:35 dict-server lrwxrwxrwx 1 root root 25 Jan 27 11:35 dovecot.conf -> /etc/dovecot/dovecot.conf drwxr-x--- 2 root dovecot 4.0K Jan 27 11:35 login -rw------- 1 root root 43 Jan 27 11:35 master-fatal.lastlog -rw------- 1 root root 6 Jan 27 11:35 master.pid /var/run/dovecot# ls login/ total 12K drwxr-x--- 2 root dovecot 4.0K Jan 27 11:35 . drwxr-xr-x 3 root root 4.0K Jan 27 11:35 .. srw-rw---- 1 root dovecot 0 Jan 27 11:35 default -rw-r--r-- 2 root root 230 Jan 23 19:12 ssl-parameters.dat I think maybe that is the problem. Anyone knows how I fix that? Or what is the real problem? Thanks for any help! -- Gustavo

2 1

[Dovecot] v2.1.rc5 (85a9b5236b6c) Error: lmtp client: DNS lookup of $FQDN failed: connect(dns-client) failed: No such file or directory
by Pascal Volk 28 Jan '12

28 Jan '12

When the Sieve plugin tries to send a vacation message or redirect a message to another address it fails. dovecot: lmtp(6412, user(a)example.com) Error: lmtp client: DNS lookup of orange.example.com failed: connect(dns-client) failed: No such file or directory dovecot: lmtp(6412, user(a)example.com) Error: dAIOClYSJE8MGQAAhQ0vrQ: sieve: msgid=<4F241255.2060900(a)example.com>: failed to redirect message to <admin+user(a)example.com> (refer to server log for more information) But the dns-client sockets are created when Dovecot starts up: # find /usr/local/var/run/dovecot -name dns-client -exec ls -l {} + srw-rw-rw- 1 root staff 0 Jan 28 16:15 /usr/local/var/run/dovecot/dns-client srw-rw-rw- 1 root root 0 Jan 28 16:15 /usr/local/var/run/dovecot/login/dns-client Hum, is it Dovecot or Pigeonhole (dovecot-2.1-pigeonhole 1600:b2a456e15ed5)? Regards, Pascal -- The trapper recommends today: c01dcofe.1202816(a)localdomain.org

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Re: [Dovecot] Crash on mail folder delete
by Daniel L. Miller 28 Jan '12

28 Jan '12

On 1/25/2012 4:04 PM, Daniel L. Miller wrote: > On 1/25/2012 3:43 PM, Daniel L. Miller wrote: >> On 1/25/2012 3:42 PM, Timo Sirainen wrote: >>> On 26.1.2012, at 1.37, Daniel L. Miller wrote: >>> >>>> Attempting to delete a folder from within the trash folder using >>>> Thunderbird. I see the following in the log: >>> Dovecot version? >>> >> 2.1.rc3. I'm compiling rc5 now... >> > Error still there on rc5. > Can I do anything to help find this? Folders are still shown in Trash - unable to delete. -- Daniel

2 1

[Dovecot] dovecot imap cluster
by Matteo Cazzador 28 Jan '12

28 Jan '12

Hello, i'm using postfix like smtp server, i need to choose an imap server with a special features. I have a customer with 3 different geographic locations. Every locations have a mail server for the same domain (example.com) If user1(a)example.com receive mail form external this mail going on every locations server. I've a problem now, is it possible to syncronize the state (mail flag) of user1 imap folder mails on every mail locations server? Example, if user1 read a mail on server one is it possible to change flag of the same mail file on server 2 and server 3? Is it possible to use dsync for it? I need something like imap cluster. Or an action in post processing imap mail read. I can't use distribuited file system. Thank's a lot -- Rispetta l'ambiente: se non ti è necessario, non stampare questa mail. ****************************************** Ing. Matteo Cazzador Email: mcazzador(a)gmail.com ******************************************

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[Dovecot] Test suite?
by Kyle Lafkoff 28 Jan '12

28 Jan '12

Hi I am building a RPM for dovecot. Is there a test suite available I could use during the build to verify proper functionality? Thanks! Kyle

2 1

[Dovecot] v2.1.rc5 released
by Timo Sirainen 27 Jan '12

27 Jan '12

http://dovecot.org/releases/2.1/rc/dovecot-2.1.rc5.tar.gz http://dovecot.org/releases/2.1/rc/dovecot-2.1.rc5.tar.gz.sig I'm still lagging behind reading emails. v2.1.0 will be released after I've finished that. RC5 is already stable and used in production, but I want to make sure that I haven't missed anything important that was reported previously. Most of the recent fixed bugs existed also in v2.0 series. Changes since rc3: * Temporary authentication failures sent to IMAP/POP3 clients now includes the server's hostname and timestamp. This makes it easier to find the error message from logs. + auth: Implemented support for Postfix's "TCP map" sockets for user existence lookups. + auth: Idling auth worker processes are now stopped. This reduces error messages about MySQL disconnections. - director: With >2 directors ring syncing might have stalled during director connect/disconnect, causing logins to fail. - LMTP client/proxy: Fixed potential hanging when sending (big) mails - Compressed mails with external attachments (dbox + SIS + zlib) failed sometimes with bogus "cached message size wrong" errors. (I skipped rc4 release, because I accidentally tagged it too early in hg.)

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Re: [Dovecot] auth-worker temporary failures causing lmtp 500 rejection
by Mark Zealey 26 Jan '12

26 Jan '12

Hi Timo thanks for the patch; I have now analyzed network dumps & discovered that the cause is actually our frontend mail servers not dovecot - we were delivering to the wrong lmtp port which we then use in the mysql query hence getting empty records. Sorry about this! Mark ________________________________________ From: Mark Zealey Sent: 26 January 2012 14:37 To: Timo Sirainen Cc: dovecot(a)dovecot.org Subject: RE: [Dovecot] auth-worker temporary failures causing lmtp 500 rejection I've tried reproducing by having long running auth queries in the sql and KILLing them on the server, restarting the mysql service, and setting max auth workers to 1 and running 2 sessions at the same time (with long-running auth queries), but to no effect. There must be something else going on here; I saw it in particular when exim on our frontend servers had queued a large number of messages and suddenly released them all at once hence the auth-worker hypothesis although the log messages do not support this. I'll try to see if I can trigger this manually although we have been doing some massively parallel testing previously and not seen this. Mark ________________________________________ From: Timo Sirainen [tss(a)iki.fi] Sent: 26 January 2012 12:31 To: Mark Zealey Cc: dovecot(a)dovecot.org Subject: Re: [Dovecot] auth-worker temporary failures causing lmtp 500 rejection On 26.1.2012, at 12.14, Mark Zealey wrote: > I'm using dovecot 2.0.16 with a mysql user database. From time to time when we have a big influx of messages (perhaps more than 30 concurrent rcpt to:<> sessions at the same time so no auth-workers free?) or when we have a transient issue connecting to the database server, we see the message: > > Jan 25 16:38:23 mailbox dovecot: auth-worker: sql(foo(a)bar.com,1.2.3.4): Unknown user This happens only when the SQL query doesn't return any rows, but does return success. > and the lmtp process returns: > > 550 5.1.1 <foo(a)bar.com> User doesn't exist: foo(a)bar.com > > This would be correct for a permanent error where the user doesn't exist in our database, however it seems to be doing this on transient errors too. Is this an issue with the code or perhaps some setting I have missed? The problem is that temporary errors are returning "unknown user". Can you reproduce this somehow? Like if you stop MySQL it always returns that "Unknown user"?

1 0

[Dovecot] auth-worker temporary failures causing lmtp 500 rejection
by Mark Zealey 26 Jan '12

26 Jan '12

Hi there, I'm using dovecot 2.0.16 with a mysql user database. From time to time when we have a big influx of messages (perhaps more than 30 concurrent rcpt to:<> sessions at the same time so no auth-workers free?) or when we have a transient issue connecting to the database server, we see the message: Jan 25 16:38:23 mailbox dovecot: auth-worker: sql(foo(a)bar.com,1.2.3.4): Unknown user and the lmtp process returns: 550 5.1.1 <foo(a)bar.com> User doesn't exist: foo(a)bar.com This would be correct for a permanent error where the user doesn't exist in our database, however it seems to be doing this on transient errors too. Is this an issue with the code or perhaps some setting I have missed? Thanks, Mark

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[Dovecot] Persistence of UIDs
by Jean-Daniel Beaubien 26 Jan '12

26 Jan '12

Hi everyone, I have a question concerning UIDs. How persistant are they? I am thinking about building some form of webmail specialized for some specific business purpose and I am thinking of building a sort of cache in a DB by storing the email addr, date, subject and UID for quick lookups and search of correspondance. I am doing this because I am having issue with multiple people searching thru email folders that have 100k+ emails (which is another problem in itself, searches don't seem to scale well when folder goes above 60k emails). So to come back to my question, can I store the UIDs and reuse those UIDs later on to obtain the body of the email??? Or can the UIDs change on the server and they will not be valid anymore?. My setup is: - dovecot 1.x (will migrate to 2.x soon) - maildir - everything stored on an intel 320 SSD (index and maildir folder) Thanks, -JD

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Re: [Dovecot] Imap Quota Exceeded - But Still Receiving Emails?
by Daniel L. Miller 26 Jan '12

26 Jan '12

On 1/25/2012 2:01 AM, Palatine Web Support wrote: > On 2012-01-25 05:38, Daniel L. Miller wrote: >> On 1/24/2012 8:35 AM, Palatine Web Support wrote: >>> >>> Here is my dovecot config: >>> >>> plugin { >>> quota = maildir:User Quota >>> quota_rule2 = Trash:storage=+100M >>> } >> [..] >>> >>> So it picks up my set quota of 3MB but dovecot is not rejecting >>> emails if I am over my quota. >>> >>> Can anyone help? >>> >> Is the quota plugin being loaded? What is the output of: >> >> doveconf | grep -B 2 plug > > The modules are being loaded. From the log file with debugging enabled: > > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): Loading modules from > directory: /usr/lib/dovecot/modules/imap > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): Module loaded: > /usr/lib/dovecot/modules/imap/lib10_quota_plugin.so > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): Module loaded: > /usr/lib/dovecot/modules/imap/lib11_imap_quota_plugin.so > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): Effective uid=150, > gid=8, home=/var/vmail/xxx.com/support > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): Quota root: name=User > Quota backend=dirsize args= > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): Quota rule: root=User > Quota mailbox=* bytes=3145728 messages=0 > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): Quota rule: root=User > Quota mailbox=Trash bytes=104857600 messages=0 > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): maildir: > data=/var/vmail/xxx.com/support > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): maildir++: > root=/var/vmail/xxx.com/support, index=, control=, > inbox=/var/vmail/xxx.com/support > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): Namespace : Using > permissions from /var/vmail/xxx.com/support: mode=0700 gid=-1 > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): Disconnected: Logged > out bytes=82/573 > Jan 25 09:59:58 mail dovecot: IMAP(xxx(a)xxx.com): Disconnected: Logged > out bytes=269/8243 > I don't know if it makes any difference, but in your config file, try changing: plugin { quota = maildir:User Quota to plugin { quota = maildir:User quota (lowercase the "quota") -- Daniel

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Re: [Dovecot] dovecot Digest, Vol 105, Issue 57
by Arun Gupta 26 Jan '12

26 Jan '12

Dear Sir, Thanks for your reply and I really agreed your point about 'reject mail for users over quota', but I don't want to do it if it is possible to without reject mails to deliver mails from spool to user's home directory automatically, kindly provide solution. I will be highly obliged all of you. -- Thanks & Regards, Arun Kumar Gupta > formate) automatically > Message-ID: <alpine.DEB.1.10.1201251327580.7664(a)flfnqz.fnat.pqnp.va> > Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII > > > Hi, > > I am using dovecot 2.0.16, and assigend globally procmailrc > (/etc/procmailrc) which delivers mails to user's home directory in maildir > formate. Also I assined quota to User through setquota (edquota) command, > If the quota excedded then this case user's mail store to > /var/spool/mail/user. After incresing quota how to delivered these mails > to user's home dir in maildir formate automatically. > > Thanks & Regards, > > Arun Kumar Gupta > Best practice is to reject mail for users over quota (as long as you do this during the smtp transaction... Otherwise, whats the point? (they can still fill up your server)... -- Best regards, Charles -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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[Dovecot] Crash on mail folder delete
by Daniel L. Miller 26 Jan '12

26 Jan '12

Attempting to delete a folder from within the trash folder using Thunderbird. I see the following in the log: Jan 25 15:36:22 bubba dovecot: imap(dmiller(a)amfes.com): Panic: file mailbox-list-fs.c: line 156 (fs_list_get_path): assertion failed: (mailbox_list_is_valid_pattern(_list, name)) Jan 25 15:36:22 bubba dovecot: imap(dmiller(a)amfes.com): Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0x3efba) [0x7f5fe9f86fba] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x3f006) [0x7f5fe9f87006] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x17f5a) [0x7f5fe9f5ff5a] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0x47287) [0x7f5fea214287] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(+0x6c71) [0x7f5fe8b9cc71] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(+0x6d47) [0x7f5fe8b9cd47] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(acl_mailbox_allocated+0x9e) [0x7f5fe8ba061e] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(hook_mailbox_allocated+0x62) [0x7f5fea2085b2] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_alloc+0xb2) [0x7f5fea2073d2] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](cmd_delete+0x72) [0x409922] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](command_exec+0x3d) [0x4109ad] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x40f97e] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x40fa5d] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](client_handle_input+0x135) [0x40fc85] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](client_input+0x5f) [0x4105af] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x36) [0x7f5fe9f93406] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x9f) [0x7f5fe9f9448f] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x28) [0x7f5fe9f933a8] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f5fe9f803b3] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](main+0x301) [0x418a61] -> /lib/libc.so.6(__libc_start_main+0xfe) [0x7f5fe9be3d8e] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x4083f9] Jan 25 15:36:23 bubba dovecot: imap(dmiller(a)amfes.com): Panic: file mailbox-list-fs.c: line 156 (fs_list_get_path): assertion failed: (mailbox_list_is_valid_pattern(_list, name)) Jan 25 15:36:23 bubba dovecot: imap(dmiller(a)amfes.com): Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0x3efba) [0x7f33673dafba] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x3f006) [0x7f33673db006] -> /usr/local/lib/dovecot/libdovecot.so.0(+0x17f5a) [0x7f33673b3f5a] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0x47287) [0x7f3367668287] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(+0x6c71) [0x7f3365ff0c71] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(+0x6d47) [0x7f3365ff0d47] -> /usr/local/lib/dovecot/lib01_acl_plugin.so(acl_mailbox_allocated+0x9e) [0x7f3365ff461e] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(hook_mailbox_allocated+0x62) [0x7f336765c5b2] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_alloc+0xb2) [0x7f336765b3d2] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](cmd_delete+0x72) [0x409922] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](command_exec+0x3d) [0x4109ad] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x40f97e] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x40fa5d] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](client_handle_input+0x135) [0x40fc85] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](client_input+0x5f) [0x4105af] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x36) [0x7f33673e7406] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x9f) [0x7f33673e848f] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x28) [0x7f33673e73a8] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f33673d43b3] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete](main+0x301) [0x418a61] -> /lib/libc.so.6(__libc_start_main+0xfe) [0x7f3367037d8e] -> dovecot/imap [dmiller(a)amfes.com 192.168.0.91 delete]() [0x4083f9] Jan 25 15:36:23 bubba dovecot: imap(dmiller(a)amfes.com): Fatal: master: service(imap): child 6074 killed with signal 6 (core dumps disabled) Jan 25 15:36:23 bubba dovecot: imap(dmiller(a)amfes.com): Fatal: master: service(imap): child 6589 killed with signal 6 (core dumps disabled) -- Daniel

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[Dovecot] FOSDEM
by Timo Sirainen 26 Jan '12

26 Jan '12

I'll be in FOSDEM giving a small lightning talk about Dovecot: http://fosdem.org/2012/schedule/event/dovecot I'll also be around in FOSDEM the whole time, so if you're there and want to talk to me about anything, send me an email at some point. Poll to dovecot-news list people: Do you want to see these kind of news about my upcoming talks sent to the list? Probably happens a few times/year. A simple "yes" or "no" reply to this mail privately to me is enough.

2 1

[Dovecot] Dovecot antispam plugint got an empty message
by Petr Bravenec 25 Jan '12

25 Jan '12

Few weeks ago I upgraded dovecot from 1.2 to 2.0.16 and antispam plugin to 2.0_pre20101222. Since the upgrade I'm not able to move messages to my Junk folder. In the maillog I have found this message: dspam[25060]: empty message (no data received) Message is copied from my INBOX to Junk folder, but dspam got an empty message and sent an error return code. So the moving operation is not successfull and the original message in INBOX was not deleted. The dspam was not trained (got an empty message). Looking to source code of dspam and antispam plugin I suspect the dovecot not to sending any content to plugin. Can you help me, please? Petr Bravenec

3 2

Re: [Dovecot] Imap Quota Exceeded - But Still Receiving Emails?
by Daniel L. Miller 25 Jan '12

25 Jan '12

On 1/25/2012 1:39 AM, Palatine Web Support wrote: > On 2012-01-25 05:38, Daniel L. Miller wrote: >> On 1/24/2012 8:35 AM, Palatine Web Support wrote: >>> >>> Here is my dovecot config: >>> >>> plugin { >>> quota = maildir:User Quota >>> quota_rule2 = Trash:storage=+100M >>> } >> [..] >>> >>> So it picks up my set quota of 3MB but dovecot is not rejecting >>> emails if I am over my quota. >>> >>> Can anyone help? >>> >> Is the quota plugin being loaded? What is the output of: >> >> doveconf | grep -B 2 plug > > Hi Daniel > > I tried the command and it returned the command was not found. I have > installed: > > apt-get install dovecot-common > apt-get install dovecot-dev > apt-get install dovecot-imapd > > > Which package does the binary doveconf come from? You need to make sure to reply to the list - not just to me. If you don't have doveconf...what version of Dovecot are you using? -- Daniel

1 0

[Dovecot] move mails from spool to users home dir(maildir formate) automatically
by Arun Gupta 25 Jan '12

25 Jan '12

Hi, I am using dovecot 2.0.16, and assigend globally procmailrc (/etc/procmailrc) which delivers mails to user's home directory in maildir formate. Also I assined quota to User through setquota (edquota) command, If the quota excedded then this case user's mail store to /var/spool/mail/user. After incresing quota how to delivered these mails to user's home dir in maildir formate automatically. Thanks & Regards, Arun Kumar Gupta -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

2 1

[Dovecot] Imap Quota Exceeded - But Still Receiving Emails?
by Palatine Web Support 25 Jan '12

25 Jan '12

Hello I am trying to setup dovecot maildir quota, but even though it seems to be working fine, I am still receiving emails into my inbox even though I have exceeded my quota. Here is my dovecot config: plugin { quota = maildir:User Quota quota_rule2 = Trash:storage=+100M } And my SQL config file for Dovecot (dovecot-sql.conf): user_query = SELECT '/var/vmail/%d/%n' as home, 'maildir:/var/vmail/%d/%n' as mail, 150 AS uid, 8 AS gid, CONCAT('*:storage=', quota) AS quota_rule FROM mailbox WHERE username = '%u' AND active = '1' CONCAT('*:storage=', quota) AS quota_rule quota_rule = *:storage=3M So it picks up my set quota of 3MB but dovecot is not rejecting emails if I am over my quota. Can anyone help? Thanks. Carl

2 1

Re: [Dovecot] change smtp port
by Noel 24 Jan '12

24 Jan '12

On 1/23/2012 8:38 AM, Amira Othman wrote: > And there is no way to receive incoming emails not on port 25 ? > You can't randomly change the port you receive mail on because external MTAs have no way to find what port you're using. They will *always* use port 25 and nothing else. If your problem is that your Internet Service Provider is blocking port 25, you can contact them. Some ISPs will unblock port 25 on request, or might even have an online form you can fill out. If you can't get help from the ISP, you need a remailer service -- some outside proxy that accepts the mail for you and forwards connections to some different port on your computer. I don't know of any free services that do this; dyndns and others offer this for a fee, sometimes combined with spam/virus filtering. -- Noel Jones

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Re: [Dovecot] change smtp port
by Charles Marcus 24 Jan '12

24 Jan '12

On 2012-01-24 7:51 AM, Amira Othman <a.othman(a)cairosource.com> wrote: > Thanks for reply > > The problem that ISP for some reason port 25 is not stable and refuse > connection for several times so I tried to change port to 587 instead > of 25 to keep sending emails. And I though that I can stop using port > 25 as it's not always working from ISP As I said, you obviously do not understand how smtp works. This is made obvious by your questions, and failure to understand that port 25 is *the* port for receiving email on the public internet. Period. If your main problem with port 25 is *sending* (relaying outbound) mails, then you will need to take this up with your ISP. If they are unable or unwilling to address the problem, one option would be to setup your system to relay through some other smtp relay service on the internet using port 587 as you apparently read somwehere, but you don't do this by changing the main smtpd daemon to port 587, because as you discovered, you won't be able to receive *any* emails like this. That said, I fail to see any relevance to dovecot in this thread... -- Best regards, Charles

1 0

[Dovecot] Trying to get metadata plugin working
by Thomas Koch 24 Jan '12

24 Jan '12

Hi, I'm working on a Kolab related project and wanted to use dovecot on my dev machine. However I'm stuck with the metadata-plugin. I "solved" the permissions problems but now I get dict: Error: file dict commit: file_dotlock_open(~/Maildir/shared-metadata) failed: No such file or directory Before that, I had dict { metadata = file:/var/lib/dovecot/shared-metadata but got problems since my normal user had no permission to access /var/lib/dovecot. I compiled the plugin from the most recent commit. My dovecot runs in a chroot. I can login with KMail and can create Groupware (annotated) folders, but the metadata file dict won't get created and I also can't set/get metadata via telnet. doveconf -N # 2.0.15: /etc/dovecot/dovecot.conf # OS: Linux 3.1.0-1-amd64 x86_64 Debian 6.0.3 auth_mechanisms = plain dict { metadata = file:~/Maildir/shared-metadata } mail_access_groups = dovecot mail_location = maildir:~/Maildir mail_plugins = " metadata" passdb { driver = pam } plugin { metadata_dict = proxy::metadata } protocols = " imap" service dict { unix_listener dict { group = dovecot mode = 0666 } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } protocol imap { mail_plugins = " metadata imap_metadata imap_annotatemore" } Best regards, Thomas Koch, http://www.koch.ro

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[Dovecot] Capabilities of imapc
by René Neumann 24 Jan '12

24 Jan '12

Hi *, I can't find any decent information about the capabilities of imapc in the planned future dovecot releases. As I think about using imapc, I'll just give the two use-cases I see for me. Will this be possible with imapc? 1) One (or more) folders in a mailbox which are proxied? 2) Proxy a whole mailbox _and use the folders in it as shared folders_. That means account X on Server 1 (the dovecot box) is proxied via imapc to Server 2 (some other server). The folders of this account on Server 1 are then shared with account Y. When account Y uses these folders they are always up-to-date (so no action of account X is required). The second use-case is just some (ugly) workaround in case the first one is not possible. Thanks, René

2 2

[Dovecot] dbox + SIS + zlib fixed
by Timo Sirainen 24 Jan '12

24 Jan '12

I think a few people have complained about this combination being somewhat broken, resulting in bogus "cached message size wrong" errors sometimes. This fixes it: http://hg.dovecot.org/dovecot-2.0/rev/9b2931607063

1 0

[Dovecot] make imap search less verbose
by Jan-Frode Myklebust 24 Jan '12

24 Jan '12

We have an imap-client (SOGo) that doesn't handle this status output while searching: * OK Searched 76% of the mailbox, ETA 0:50 Is there any way to disable this output on the dovecot-side? -jf

2 3

[Dovecot] Director questions
by Mark Moseley 23 Jan '12

23 Jan '12

In playing with dovecot director, a couple of things came up, one related to the other: 1) Is there an effective maximum of directors that shouldn't be exceeded? That is, even if technically possible, that I shouldn't go over? Since we're 100% NFS, we've scaled servers horizontally quite a bit. At this point, we've got servers operating as MTAs, servers doing IMAP/POP directly, and servers separately doing IMAP/POP as webmail backends. Works just dandy for our existing setup. But to director-ize all of them, I'm looking at a director ring of maybe 75-85 servers, which is a bit unnerving, since I don't know if the ring will be able to keep up. Is there a scale where it'll bog down? 2) If it is too big, is there any way, that I might be missing, to use remote directors? It looks as if directors have to live locally on the same box as the proxy. For my MTAs, where they're not customer-facing, I'm much less worried about the latency it'd introduce. Likewise with my webmail servers, the extra latency would probably be trivial compared to the rest of the request--but then again, might not. But for direct IMAP, the latency likely be more noticeable. So ideally I'd be able to make my IMAP servers (well, the frontside of the proxy, that is) be the director pool, while leaving my MTAs to talk to the director remotely, and possibly my webmail servers remote too. Is that a remote possibility?

2 2

[Dovecot] LMTP ignoring tcpwrappers
by Harm Weites 23 Jan '12

23 Jan '12

Hello, we want to use dovecot LMTP for efficient mail delivery from our MX servers (running postfix 2.8) to our storage servers (dovecot 2.0.17). However, the one problem we see is the lack of access control when using LMTP. It apears that every client in our network who has access to the storage machines can drop a message in a Maildir of any user on that storage server. To prevent this behaviour it would be nice to use libwrap, just as it can be used for POP3/IMAP protocols. This, however, seems to be impossible using the configuration as mentioned on the dovecot wiki: login_access_sockets = tcpwrap service tcpwrap { unix_listener login/tcpwrap { group = $default_login_user mode = 0600 user = $default_login_user } } This seems to imply it only works for a login, and LMTP does not use that. The above works perfectly when trying to block access to IMAP or POP3 in /etc/hosts.deny, though a setting for LMTP is simply ignored. Is there a configuration setting needed for this to work for LMTP, or is it simply not possible (yet) and does libwrap support for LMTP requires a patch? Any help is appreciated. Regards, Harm

2 2

[Dovecot] Quota is not working (Debian Squeeze - Dovecot 1.2)
by RaSca 23 Jan '12

23 Jan '12

Hi all, I'm trying to make quota work in Squeeze (Dovecot 1.2.15-7). The quota module is correctly loaded and, when receiving a message, from the log I see these messages: Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): Loading modules from directory: /usr/lib/dovecot/modules/lda Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): Module loaded: /usr/lib/dovecot/modules/lda/lib10_quota_plugin.so Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): Module loaded: /usr/lib/dovecot/modules/lda/lib90_sieve_plugin.so Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): auth input: uid=5000 Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): auth input: gid=5000 Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): auth input: home=/mail/mailboxes/<mydomain>/testquota Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): Quota root: name=/mail/mailboxes/<mydomain>/testquota backend=maildir args= Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): maildir: data=/mail/mailboxes/<mydomain>/testquota@<mydomain> Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): maildir++: root=/mail/mailboxes/<mydomain>/testquota@<mydomain>, index=, control=, inbox=/mail/mailboxes/<mydomain>/testquota@<mydomain> Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): sieve: user's script path /mail/mailboxes/<mydomain>/testquota/.dovecot.sieve doesn't exist (using global script path in stead) Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): sieve: using sieve path for user's script: /mail/sieve/globalsieverc Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): sieve: opening script /mail/sieve/globalsieverc Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): sieve: executing compiled script /mail/sieve/globalsieverc Jan 16 11:20:04 mail-1 dovecot: deliver(testquota@<mydomain>): Namespace : Using permissions from /mail/mailboxes/<mydomain>/testquota@<mydomain>: mode=0700 gid=-1 Jan 16 11:20:05 mail-1 dovecot: deliver(testquota@<mydomain>): sieve: msgid=<4F13F996.4000501(a)seat.it>: stored mail into mailbox 'INBOX' Now, since I've got a message like this: Quota root: name=/mail/mailboxes/<mydomain>/testquota@<mydomain> backend=maildir args= it seems that something is checked, but even if this directory is over quota, nothing happens. This is my dovecot conf: protocols = imap pop3 disable_plaintext_auth = no log_timestamp = "%Y-%m-%d %H:%M:%S " mail_location = maildir:/mail/mailboxes/%d/%n@%d mail_privileged_group = mail mail_debug = yes mail_nfs_storage = yes mmap_disable=yes fsync_disable=no mail_nfs_index = yes protocol imap { mail_plugins = quota imap_quota } protocol pop3 { pop3_uidl_format = %08Xu%08Xv mail_plugins = quota } protocol managesieve { } protocol lda { auth_socket_path = /var/run/dovecot/auth-master postmaster_address = postmaster@<mydomain> mail_plugins = sieve quota quota_full_tempfail = no log_path = } auth default { mechanisms = plain passdb sql { args = /etc/dovecot/dovecot-sql.conf } userdb passwd { } userdb static { args = uid=5000 gid=5000 home=/mail/mailboxes/%d/%n@%d allow_all_users=yes } user = root socket listen { master { path = /var/run/dovecot/auth-master mode = 0600 user = vmail } client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } } } plugin { quota = maildir:/mail/mailboxes/%d/%n@%d sieve_global_path = /mail/sieve/globalsieverc } The db connection works, this is /etc/dovecot/dovecot-sql.conf: driver = mysql connect = host=<myserver> dbname=mail user=<myuser> password=<mypassword> default_pass_scheme = CRYPT password_query = SELECT username, password FROM mailbox WHERE username='%u' user_query = SELECT username AS user, maildir AS home, CONCAT('*:storage=', quota , 'B') AS quota_rule FROM mailbox WHERE username = '%u' AND active = '1' and for the user testquota the user_query results in this: +-------------------+----------------------------+--------------------+ | user | home | quota_rule | +-------------------+----------------------------+--------------------+ | testquota@<mydom> | <mydom>/testquota@<mydom>/ | *:storage=1024000B | +-------------------+----------------------------+--------------------+ everything else is ok, for example I'm using sieve for the spam filter, and the SPAM is correctly put in the .SPAM dir. I turned on debug on dovecot, but I can't see if the query in some way fails. Can you please help me to understand what am I doing wrong? -- RaSca Mia Mamma Usa Linux: Niente è impossibile da capire, se lo spieghi bene! rasca(a)miamammausalinux.org http://www.miamammausalinux.org

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Re: [Dovecot] change smtp port
by Giles Coochey 23 Jan '12

23 Jan '12

On 2012-01-23 14:38, Amira Othman wrote: > And there is no way to receive incoming emails not on port 25 ? > > No. http://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol

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Re: [Dovecot] change smtp port
by Ralf Hildebrandt 23 Jan '12

23 Jan '12

* Amira Othman <a.othman(a)cairosource.com>: > Hi all > > I am using postfix 2.8 with dovecot-1.2.17-0_116.el5 on cento 5.7 server . > when I changed smtp port from 25 to 587 from postfix configuration my mail > server stops to receive emails. That's normal. > I think it sounds strange and I don't understand why this happen any > one can help me Mail from other systems comes in via port 25. Once you change the port, nobody can send mail to your server. Easy, no? -- 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

2 1

Re: [Dovecot] change smtp port
by Giles Coochey 23 Jan '12

23 Jan '12

On 2012-01-23 14:30, Amira Othman wrote: > Hi all > > I am using postfix 2.8 with dovecot-1.2.17-0_116.el5 on cento 5.7 > server . > when I changed smtp port from 25 to 587 from postfix configuration my > mail > server stops to receive emails. I think it sounds strange and I don't > understand why this happen any one can help me > > > > Regards If this SMTP server is your MX record, then you need to use port 25. Only use the 587 port for authenticated submissions from your own users for outgoing email. -- Message sent via my webmail account.

1 0

[Dovecot] change smtp port
by Amira Othman 23 Jan '12

23 Jan '12

Hi all I am using postfix 2.8 with dovecot-1.2.17-0_116.el5 on cento 5.7 server . when I changed smtp port from 25 to 587 from postfix configuration my mail server stops to receive emails. I think it sounds strange and I don't understand why this happen any one can help me Regards

1 0

[Dovecot] Sieve tempoary script folder
by Markus Fritz 21 Jan '12

21 Jan '12

Hello, I got the issue that sieve wants to write his tmp files to /etc/dovecot/. But I want sieve to write in a folder which it has write rights. I created a script to to put spam in the 'Spam' folder, put it in /etc/dovecot/.dovecot.sieve. When recieving a mail sieve want's to create a tmp file like /etc/dovecot/.dovecot.sieve.12033 How to change the desired tmp folder by sieve?

1 0

[Dovecot] 2.1.rc3 (1a722c7676bb): doveadm mailbox list withholds child mailboxes
by Pascal Volk 21 Jan '12

21 Jan '12

Probably I've overlooked something. But a quick search in `hg log -k doveadm` didn't show appropriate information. doveadm mailbox list -u user(a)example.com doesn't show child mailboxes. mailbox = N/A || \*: Sent Trash INBOX Drafts Junk-E-Mail Supplier mailbox = Supplier*: Supplier mailbox = Supplier/*: Supplier/Dell Supplier/VMware Supplier/… The same problem exists in `doveadm mailbox status` Regards, Pascal -- The trapper recommends today: defaced.1201301(a)localdomain.org

1 1

Re: [Dovecot] mail_max_userip_connections exceeded.
by Joseph Tam 21 Jan '12

21 Jan '12

Simon Brereton <simon.brereton(a)buongiorno.com> writes: > /var/log/mail.log.1:2490:Jan 19 12:02:55 mail dovecot: imap-login: > Maximum number of connections from user+IP exceeded > (mail_max_userip_connections): user=<user(a)example.com>, method=PLAIN, > rip=127.0.0.1, secured > > I never changed this from the default 10. When I googled this error > there was a thread on this list from May 2011 that indicated one would > need one connection per user per subscribed folder. However, I know > that user doesn't have 10 folders, let alone 10 subscribed folders! I > can increase, it but it's not going to scale well. And there are > people on this list with many 1000x users than I have - so how do they > deal with that? > > 127.0.0.1 is obviously webmail (IMP5). IMAP proxy or lack of proxy? IMAP proxy could be a problem if the user had opened more than 10 (unique) mailboxes. The proxy would keep this connection open until a timeout, and after some time, could accumulate more connections than your limit. The lack of proxy could solve your problem if for some reason your webmail software is not closing the IMAP connection properly (I assume IMP does a connect/authenticate/IMAP command/logout for every webmail operation). Every connection (even to the same mailbox) would open up a new connection. The proxy software will recognize the reconnnection and funnel it through its cached connection. You can lsof the user's IMAP processes (or troll through /proc/{imap-process} or what you have) to figure out which mailboxes it has opened. On my system, file descriptor 9 and 11 gives you the names of the index files that indicate which mailboxes are being accessed. Joseph Tam <jtam.home(a)gmail.com>

2 1

[Dovecot] Clients show .subscriptions folder
by Mark Sapiro 21 Jan '12

21 Jan '12

Since upgrading from dovecot-2.1.rc1 to dovecot-2.1.rc3, some clients are showing a .subscriptions file in the user's mbox path as a folder. Some clients such as T'bird on Mac OS X create this file listing subscribed mbox files. Other clients such as T'bird on Windows XP show this file as a folder in the folder list even though it cannot be accessed as a folder (dovecot returns CANNOT Mailbox is not a valid mbox file). I think this may be a result of uncommenting the inbox namespace in conf.d/10-mail.conf <http://hg.dovecot.org/dovecot-2.1/rev/2c8d39467f21>. Is there a way to supress exposing this file to clients that don't use it? # dovecot -n # 2.1.rc3: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.18-8.1.14.el5 i686 CentOS release 5 (Final) auth_mechanisms = plain apop login auth_worker_max_count = 5 mail_location = mbox:~/Mail:INBOX=/var/spool/mail/%u mail_privileged_group = mail mbox_write_locks = fcntl dotlock namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /usr/local/etc/dovecot.passwd driver = passwd-file } passdb { driver = pam } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } } ssl_cert = </etc/httpd/conf/ssl/combined.crt ssl_key = </etc/httpd/conf/ssl/www.grizz.org.key userdb { driver = passwd } protocol imap { mail_max_userip_connections = 30 } # -- Mark Sapiro <mark(a)msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

2 3

[Dovecot] Performance of Maildir vs sdbox/mdbox
by Lee Standen 20 Jan '12

20 Jan '12

Hi Guys, I've been desperately trying to find some comparative performance information about the different mailbox formats supported by Dovecot in order to make an assessment on which format is right for our environment. This is a brand new build, with customer mailboxes to be migrated in over the course of 3-4 months. Some details on our new environment: * Approximately 1.6M+ mailboxes once all legacy systems are combined * NetApp FAS6280 storage w/ 120TB usable for mail storage, 1TB of FlashCache in each controller * All mail storage presented via NFS over 10Gbps Ethernet (Jumbo Frames) * Postfix will feed new email to Dovecot via LMTP * Dovecot servers have been split based on their role - Dovecot LDA Servers (running LMTP protocol) - Dovecot POP/IMAP servers (running POP/IMAP protocols) - LDA & POP/IMAP servers are segmented into geographically split groups (so no server sees every single mailbox) - Nginx proxy used to terminate customer connections, connections are redirected to the appropriate geographic servers * Apache Lucene indexes will be used to accelerate IMAP search for users Our closest current live configuration (Qmail SMTP, Courier IMAP, Maildir) has 600K mailboxes and pushes ~ 35,000 NFS operations per second at peak Some of the things I would like to know: * Are we likely to see a reduction in IOPS/User by using Maildir alone under Dovecot? * What kind of IOPS/User reduction could we expect to see under mdbox? * If someone can give some technical reasoning behind why mdbox does less IOPS than Maildir? I understand some of the reasons for the mdbox IOPS question, but I need some more information so we can discuss internally and make a decision as to whether we're comfortable going with mdbox from day one. We're very familiar with Maidlir, and there's just some uneasiness internally around going to a new mail storage format. Thanks!

7 16

[Dovecot] mail_max_userip_connections exceeded.
by Simon Brereton 20 Jan '12

20 Jan '12

Hi I'm using Dovecot version 1:1.2.15-7 installed on Debian Squeeze via apt-get.. I have this error in the logs. /var/log/mail.log.1:2490:Jan 19 12:02:55 mail dovecot: imap-login: Maximum number of connections from user+IP exceeded (mail_max_userip_connections): user=<user(a)example.com>, method=PLAIN, rip=127.0.0.1, secured I never changed this from the default 10. When I googled this error there was a thread on this list from May 2011 that indicated one would need one connection per user per subscribed folder. However, I know that user doesn't have 10 folders, let alone 10 subscribed folders! I can increase, it but it's not going to scale well. And there are people on this list with many 1000x users than I have - so how do they deal with that? 127.0.0.1 is obviously webmail (IMP5). So, how/why am I seeing this, and should I be concerned? Simon

2 1

[Dovecot] Notify plugin: segmentation fault
by Ewald Dieterich 20 Jan '12

20 Jan '12

I'm trying to develop a plugin that uses the hooks provided by the notify plugin. The notify plugin segfaults if you don't set the mailbox_rename hook. I attached a patch to notify-plugin.c from Dovecot 2.0.16 that should fix this. Ewald

2 1

[Dovecot] shared folder files not displaying in thunderbird
by Eric Broch 19 Jan '12

19 Jan '12

Hello, I have dovecot installed with the configuration below. One of the subfolders created (using the email client) under the '/home/vpopmail/domains/mydomain.com/shared/projects' share no longer (it used to) displays the files located in it. There are about 150 folders under the '/home/vpopmail/domains/mydomain.com/shared/projects' share all of which display the files located in them, the one mentioned used to display the contents but no longer does. What would be the reason that one folder would no longer display existing files in the email client (Thunderbird) and the other folders would? And, how do I fix this? I've already tried unsubscribing and resubscribing the folder. This did not work. Would it now be simply a matter of unsubscribing the folder, deleting the dovecot files, and resubscribing to the folder? Eric # 2.0.11: /etc/dovecot/dovecot.conf # OS: Linux 2.6.18-238.19.1.el5 i686 CentOS release 5.7 (Final) auth_cache_size = 32 M auth_mechanisms = plain login digest-md5 cram-md5 auth_username_format = %Lu disable_plaintext_auth = no first_valid_uid = 89 log_path = /var/log/dovecot.log login_greeting = Dovecot toaster ready. namespace { inbox = yes location = prefix = INBOX. separator = . type = private } namespace { location = maildir:/home/vpopmail/domains/mydomain.com/shared/projects prefix = projects. separator = . type = public } passdb { args = cache_key=%u webmail=127.0.0.1 driver = vpopmail } plugin/quota = maildir protocols = imap ssl_cert = </var/qmail/control/servercert.pem ssl_key = </var/qmail/control/servercert.pem userdb { args = cache_key=%u quota_template=quota_rule=*:backend=%q driver = vpopmail } protocol imap { imap_client_workarounds = delay-newmail }

2 3

[Dovecot] Problems sending email direct into publich folders
by Bohlken, Henning 19 Jan '12

19 Jan '12

Hi, i want to send mails direct into a public folder. If i send an email via my local postfix the mail will be handled as a normal private mail. Dovecot does create a mailbox in the private Namespace and do use not the mailbox in public one. I hope you can help me with my little problem. Here sone informations about my configuration: [root@imap1 etc]# ls -la /var/dovecot/imap/public/ insgesamt 16 drwxr-x--- 3 vmail vmail 4096 19. Jan 10:12 . drwxr-x--- 5 vmail vmail 4096 18. Jan 08:41 .. -rw-r----- 1 vmail vmail 0 19. Jan 10:11 dovecot-acl-list -rw-r----- 1 vmail vmail 8 19. Jan 10:12 dovecot-uidvalidity -r--r--r-- 1 vmail vmail 0 19. Jan 10:12 dovecot-uidvalidity.4f17de84 drwx------ 5 vmail vmail 4096 19. Jan 10:12 .hrztest and here is me configuration: # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-220.2.1.el6.i686 i686 Red Hat Enterprise Linux Server release 6.2 (Santiago) auth_username_format = %Ln disable_plaintext_auth = no login_greeting = Dovecot IMAP der Jade Hochschule. mail_access_groups = vmail mail_debug = yes mail_gid = vmail mail_plugins = quota acl mail_uid = vmail 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 imapflags notify mbox_write_locks = fcntl namespace { inbox = yes location = maildir:/var/dovecot/imap/%1n/%n prefix = separator = / type = private } namespace { list = children location = maildir:/var/dovecot/imap/public/ prefix = public/ separator = / subscriptions = no type = public } passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } passdb { driver = pam } plugin { acl = vfile acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes mail_log_fields = uid box msgid size quota = dict:user::file:/var/dovecot/imap/%1n/%n/dovecot-quota quota_rule = *:storage=50MB quota_rule2 = Trash:storage=+10% sieve = /var/dovecot/imap/%1n/%n/.dovecot.sieve sieve_dir = /var/dovecot/imap/%1n/%n/sieve sieve_extensions = +notify +imapflags sieve_quota_max_scripts = 2 } postmaster_address = postmaster(a)jade-hs.de protocols = imap pop3 lmtp sieve service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=501 gid=502 home=/home/vmail/%n allow_all_users=yes driver = static } userdb { driver = passwd } protocol lmtp { mail_plugins = quota acl sieve } protocol imap { mail_plugins = quota acl imap_quota } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } -- HS Wilhelmshaven/Oldenburg/Elsfleth Jade Hochschule Hochschulrechenzentrum Dipl.-Ing. Henning Bohlken Friedrich-Paffrath-Str. 101 26389 Wilhelmshaven

2 1

[Dovecot] Storing passwords encrypted... bcrypt?
by Charles Marcus 19 Jan '12

19 Jan '12

Hi everyone, Was just perusing this article about how trivial it is to decrypt passwords that are stored using most (standard) encryption methods (like MD5), and was wondering - is it possible to use bcrypt with dovecot+postfix+mysql (or posgres)? -- Best regards, Charles

12 39

[Dovecot] MASTER_AUTH_MAX_DATA_SIZE
by Mike Abbott 19 Jan '12

19 Jan '12

In 2.0.17 you increased LOGIN_MAX_INBUF_SIZE from 1024 to 4096. Should you also have increased MASTER_AUTH_MAX_DATA_SIZE from (1024*2) to (4096*2)? /* This should be kept in sync with LOGIN_MAX_INBUF_SIZE. Multiply it by two to make sure there's space to transfer the command tag */

2 2

Re: [Dovecot] shared folder files not displaying in thunderbird
by Eric Broch 19 Jan '12

19 Jan '12

Can anyone help me figure out why email in a sub-folder (created using Thunderbird) of a dovecot namespace will not display in Thunderbird? ... Hello, I have dovecot installed with the configuration below. One of the subfolders created (using the email client) under the '/home/vpopmail/domains/mydomain.com/shared/projects' share no longer (it used to) displays the files located in it. There are about 150 folders under the '/home/vpopmail/domains/mydomain.com/shared/projects' share all of which display the files located in them, the one mentioned used to display the contents but no longer does. What would be the reason that one folder would no longer display existing files in the email client (Thunderbird) and the other folders would? And, how do I fix this? I've already tried unsubscribing and resubscribing the folder. This did not work. Would it now be simply a matter of unsubscribing the folder, deleting the dovecot files, and resubscribing to the folder? Eric # 2.0.11: /etc/dovecot/dovecot.conf # OS: Linux 2.6.18-238.19.1.el5 i686 CentOS release 5.7 (Final) auth_cache_size = 32 M auth_mechanisms = plain login digest-md5 cram-md5 auth_username_format = %Lu disable_plaintext_auth = no first_valid_uid = 89 log_path = /var/log/dovecot.log login_greeting = Dovecot toaster ready. namespace { inbox = yes location = prefix = INBOX. separator = . type = private } namespace { location = maildir:/home/vpopmail/domains/mydomain.com/shared/projects prefix = projects. separator = . type = public } passdb { args = cache_key=%u webmail=127.0.0.1 driver = vpopmail } plugin/quota = maildir protocols = imap ssl_cert = </var/qmail/control/servercert.pem ssl_key = </var/qmail/control/servercert.pem userdb { args = cache_key=%u quota_template=quota_rule=*:backend=%q driver = vpopmail } protocol imap { imap_client_workarounds = delay-newmail }

1 0

[Dovecot] Panic: file mbox-sync.c: line 1348: assertion failed
by Jürgen Obermann 18 Jan '12

18 Jan '12

Hallo, I have the following problem with doveadm: # gdb --args /opt/local/bin/doveadm -v mailbox status -u userxy/g029 'messages' "Software-alle/AK-Software-Tagung" GNU gdb 5.3 Copyright 2002 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "sparc-sun-solaris2.8"... (gdb) run Starting program: /opt/local/bin/doveadm -v mailbox status -u g029 messages Software-alle/AK-Software-Tagung warning: Lowest section in /lib/libthread.so.1 is .dynamic at 00000074 warning: Lowest section in /lib/libdl.so.1 is .hash at 000000b4 doveadm(g029): Panic: file mbox-sync.c: line 1348: assertion failed: (file_size >= sync_ctx->expunged_space + trailer_size) doveadm(g029): Error: Raw backtrace: 0xff1cbc30 -> 0xff319544 -> 0xff319fa8 -> 0xff31add8 -> 0xff31b278 -> 0xff2a69b0 -> 0xff2a6bac -> 0x16808 -> 0x1b8fc -> 0x16ba0 -> 0x177cc -> 0x17944 -> 0x17a50 -> 0x204e8 -> 0x165c8 Program received signal SIGABRT, Aborted. 0xfe94dcdc in _lwp_kill () from /lib/libc.so.1 (gdb) bt full #0 0xfe94dcdc in _lwp_kill () from /lib/libc.so.1 No symbol table info available. #1 0xfe8e6fb4 in raise () from /lib/libc.so.1 No symbol table info available. #2 0xfe8c2078 in abort () from /lib/libc.so.1 No symbol table info available. #3 0xff1cb984 in default_fatal_finish () from /opt/local/lib/dovecot/libdovecot.so.0 No symbol table info available. #4 0xff1cbc38 in i_panic () from /opt/local/lib/dovecot/libdovecot.so.0 No symbol table info available. #5 0xff31954c in mbox_sync_handle_eof_updates () from /opt/local/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #6 0xff319fb0 in mbox_sync_do () from /opt/local/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #7 0xff31ade0 in mbox_sync_int () from /opt/local/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #8 0xff31b280 in mbox_storage_sync_init () from /opt/local/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #9 0xff2a69b8 in mailbox_sync_init () from /opt/local/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #10 0xff2a6bb4 in mailbox_sync () from /opt/local/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #11 0x00016810 in doveadm_mailbox_find_and_sync () No symbol table info available. #12 0x0001b904 in cmd_mailbox_status_run () No symbol table info available. #13 0x00016ba8 in doveadm_mail_next_user () No symbol table info available. #14 0x000177d4 in doveadm_mail_cmd () No symbol table info available. #15 0x0001794c in doveadm_mail_try_run_multi_word () No symbol table info available. #16 0x00017a58 in doveadm_mail_try_run () No symbol table info available. #17 0x000204f0 in main () No symbol table info available. (gdb) quit The program is running. Exit anyway? (y or n) y My configuration ist as follows: # /opt/local/bin/doveconf -n # 2.0.16: /opt/local/etc/dovecot/dovecot.conf # OS: SunOS 5.10 sun4v auth_verbose = yes disable_plaintext_auth = no lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = imap.hrz.uni-giessen.de localhost mail_location = mbox:~/Mail:INBOX=/var/mail/%u mail_plugins = mail_log notify zlib 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 ihave mdbox_rotate_interval = 1 days mdbox_rotate_size = 16 M namespace { inbox = yes location = prefix = separator = / type = private } namespace { hidden = yes list = no location = prefix = Mail/ separator = / subscriptions = yes type = private } passdb { driver = pam } passdb { args = /opt/local/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { autocreate = Trash autocreate2 = caughtspam autocreate3 = Sent autocreate4 = Drafts autosubscribe = Trash autosubscribe2 = caughtspam autosubscribe3 = Sent autosubscribe4 = Drafts mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size sieve = ~/.dovecot.sieve sieve_dir = ~/sieve zlib_save = gz zlib_save_level = 3 } postmaster_address = postmaster(a)hrz.uni-giessen.de quota_full_tempfail = yes sendmail_path = /usr/lib/sendmail service auth { client_limit = 11120 } service imap-login { process_min_avail = 16 service_count = 0 vsz_limit = 640 M } service imap { process_limit = 4096 vsz_limit = 1 G } ssl_cert = </etc/ssl/imap_hrz.crt ssl_key = </etc/ssl/imap_hrz.key syslog_facility = local0 userdb { driver = passwd } version_ignore = yes protocol lda { info_log_path = log_path = mail_plugins = mail_log notify zlib sieve } protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags mail_max_userip_connections = 20 mail_plugins = mail_log notify zlib autocreate imap_zlib } protocol lmtp { mail_plugins = mail_log notify zlib sieve } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xv%08Xu } Greetings, Jürgen Obermann -- Hochschulrechenzentrum der | Mail: Juergen.Obermann(a)hrz.uni-giessen.de Justus-Liebig-Universitaet | WWW: http://www.uni-giessen.de/obermann/ Heinrich-Buff-Ring 44 | Tel: 0641-99-13054 (0641-99-13001) D-35392 Giessen, Germany | Fax: 0641-99-13009

1 1

[Dovecot] Quota won't work
by Markus Fritz 18 Jan '12

18 Jan '12

I tried to set a quota setting. I installed dovecot with newest version, patched it and started it. dovecot -n: # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.3 ext4 log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps pop3 pop3s ssl_listen: 143 ssl_cipher_list: ALL:!LOW:!SSLv2 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: mail mail_location: maildir:/var/vmail/%d/%n/Maildir 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 namespace: type: private inbox: yes list: yes subscriptions: yes lda: postmaster_address: postmaster(a)opsys.de mail_plugins: sieve quota log_path: auth default: mechanisms: plain login verbose: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: static args: uid=5000 gid=5000 home=/var/vmail/%d/%n/Maildir allow_all_users=yes socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: vmail /etc/dovecot/dovecot-sql.conf: driver = mysql connect = host=127.0.0.1 dbname=mailserver user=mailuser password=****** default_pass_scheme = PLAIN-MD5 password_query = SELECT email as user, password FROM virtual_users WHERE email='%u'; user_query = SELECT CONCAT('/var/mail/', maildir) AS home, CONCAT('*:bytes=', quota) AS quota_rule \ FROM virtual_users WHERE email='%u' virtual_users has this: CREATE TABLE IF NOT EXISTS `virtual_users` ( `id` int(11) NOT NULL AUTO_INCREMENT, `domain_id` int(11) NOT NULL, `password` varchar(32) NOT NULL, `email` varchar(100) NOT NULL, `quota` int(11) NOT NULL DEFAULT '629145600', PRIMARY KEY (`id`), UNIQUE KEY `email` (`email`), KEY `domain_id` (`domain_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; Also postfix is installed with this (not the hole cfg): virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf virtual_mailbox_limit_inbox = no virtual_mailbox_limit_maps = mysql:/etc/postfix/mysql-quota.cf virtual_mailbox_limit_override = yes virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf virtual_maildir_extended = yes virtual_maildir_limit_message = "The user you are trying to reach is over quota." virtual_maildir_limit_message_maps = mail:/etc/postfix/mysql-quota.cf virtual_overquota_bounce = yes /etc/postfix/mysql-quota.cf: user = mailuser password = ****** hosts = 127.0.0.1 dbname = mailserver query = SELECT quota FROM virtual_users WHERE email='%s' I changed the quota of my mail account to 40, so 40Byte should be the maximum. My account is at a size of 600KB now. I still recieve mails, also they will be saved without errors. /var/log/mail.log says nothing to quota, just normal recieve and store entries. What to fix? -- Markus Fritz Administration opsys.de

2 1

[Dovecot] LMTP Logging
by Mark Moseley 18 Jan '12

18 Jan '12

Just had a minor suggestion, with no clue how hard/easy it would be to implement: The %f flag in deliver_log_format seems to pick up the From: header, instead of the "MAIL FROM:<...>" arg. It'd be handy to have a %F that shows the "MAIL FROM" arg instead. I'm looking at tracking emails through logs from Exim to Dovecot easily. I know Message-ID can be used for correlation but it adds some complexity to searching, i.e. I can't just grep for the sender (as logged by Exim), unless I assume "MAIL FROM" always == From:

2 2

[Dovecot] v2.x services documentation
by Timo Sirainen 18 Jan '12

18 Jan '12

If you've ever wanted to know everything about the service {} blocks, this should be quite helpful: http://wiki2.dovecot.org/Services

3 4

[Dovecot] 2.1.rc3 (1a722c7676bb): doveadm mailbox list -> Segmentation fault
by Pascal Volk 18 Jan '12

18 Jan '12

Oops, I did it again. -- The trapper recommends today: c01dcofe.1201514(a)localdomain.org

2 1

[Dovecot] v2.1.rc3 released
by Timo Sirainen 18 Jan '12

18 Jan '12

http://dovecot.org/releases/2.1/rc/dovecot-2.1.rc3.tar.gz http://dovecot.org/releases/2.1/rc/dovecot-2.1.rc3.tar.gz.sig Whops, rc2 was missing a file. I always run "make distcheck", which should catch these, but recently it has always failed due to clang static checking giving one "error" that I didn't really want to fix. Because of that the distcheck didn't finish and didn't check for the missing file. So, anyway, I've made clang happy again, and now that I see how bad idea it is to just ignore the failed distcheck, I won't do that again in future. :)

2 2

[Dovecot] Dovecot unable to locate mailbox
by Jason X, Maney 18 Jan '12

18 Jan '12

Dear all, I hope someone can point me in the right direction. here. I have setup my Dovecot v2.0.13 on Ubuntu 11.10. The logs tells me that the mail location has failed as follows: ========= Jan 16 14:18:16 myservername dovecot: pop3-login: Login: user=<userA>, method=PLAIN, rip=aaa.bbb.ccc.ddd, lip=www.xxx.yyy.zzz, mpid=1360, TLS Jan 16 14:18:16 myservername dovecot: pop3(userA): Error: user molla: Initialization failed: mail_location not set and autodetection failed: Mail storage autodetection failed with home=/home/userA Jan 16 14:18:16 myservername dovecot: pop3(userA): Error: Invalid user settings. Refer to server log for more information. ========= Yet my config also come out strangely as below: ========= root@guyana:~# dovecot -n # 2.0.13: /etc/dovecot/dovecot.conf # OS: Linux 3.0.0-12-server x86_64 Ubuntu 11.10 passdb { driver = pam } protocols = " imap pop3" ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } root@guyana:~# ========= My mailbox location setting is as follows: ========= cat conf.d/10-mail.conf |grep mail_location # path given in the mail_location setting. # mail_location = maildir:~/Maildir # mail_location = mbox:~/mail:INBOX=/var/mail/%u # mail_location = mbox:/var/mail/%d/%1n/%n:INDEX=/var/indexes/%d/%1n/%n mail_location = maildir:~/Maildir # explicitly, ie. mail_location does nothing unless you have a namespace # mail_location, which is also the default for it. ========= I am wondering how best to work around this Dovecot problem. Please help. Regards Jason.

3 2

[Dovecot] Dovecot Solutions company update
by Timo Sirainen 18 Jan '12

18 Jan '12

Hi, A small update: My Dovecot support company finally has web pages: http://www.dovecot.fi/ We've also started providing 24/7 support.

2 1

[Dovecot] Dovecot did not accept Login from Host
by email＠randpoger.org 18 Jan '12

18 Jan '12

Hi! My Dovecot is running and i can connect + login through telnet: -------------------------------------------- >> telnet localhost 143 Trying ::1... Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE STARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready. >> 1 login user passwort 1 OK [...] Logged in -------------------------------------------- But through my domain i can only connect, but than i get an error: -------------------------------------------- >> telnet domain.de 143 Trying xx.xxx.xxx.xx... Connected to domain.de. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE STARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready. >> 1 login user passwort 1 NO [AUTHENTICATIONFAILED] Authentication failed. -------------------------------------------- My dovecot.conf: -------------------------------------------- protocols = imap imaps ssl_cert_file = /etc/ssl/certs/dovecot.pem ssl_key_file = /etc/ssl/private/dovecot.pem mail_location= /var/mail/%u log_path = /var/log/dovecot.log log_timestamp = "%Y-%m-%d %H:%M:%S " auth_verbose = yes auth_debug = yes protocol imap { } auth default { mechanisms = plain login passdb pam { } userdb passwd { } user = root } -------------------------------------------- If i try to connect+login through an domain, dovecot write NOTHING into the .log Someone ideas about this?

1 0

[Dovecot] Dovecot crashes totally
by Gordon Grubert 18 Jan '12

18 Jan '12

Hello, our dovecot server crashes totally without any really useful log messages. The error log can be found in the attachment. The only way to get dovecot running again is a complete system restart. Dovecot version: 2:2.0.15-0~auto+5 (2.0.15 (6b7242ead6ed)) Configuration : see attachment OS : Debian Squeeze amd64 Dovecot source : http://xi.rename-it.nl/debian/ \ stable-auto/dovecot-2.0 main This problem has already occurred with the version 2.0.13 where the log says as few as the current logs :-( Best regards, Gordon -- Leiter AG Technische Infrastruktur und Basisdienste Universitaetsrechenzentrum (URZ) E.-M.-Arndt-Universitaet Greifswald Felix-Hausdorff-Str. 12 17489 Greifswald Germany Tel. +49 3834 86-1456 Fax. +49 3834 86-1401

3 3

[Dovecot] [Dovecot 2.1] ACL plugin makes imap service crash when using some clients
by interfaSys sàrl 18 Jan '12

18 Jan '12

Hello, I've just noticed that when Horde is connecting to Dovecot 2.1, it crashes the imap service if Dovecot is configured to use the ACL plugin. I'm not sure what's so special about the command Horde sends, but it shouldn't make Dovecot crash. Everything is fine when using Thunderbird. Here is the message in Dovecot's logs "Fatal: master: service(imap): child 89974 killed with signal 11 (core not dumped)" The message says that the core is not dumped, even though I did add drop_priv_before_exec=yes to my config file. I've tried connecting to the pid using gdb, but the process just hangs as soon as I'm connected. Cheers, Olivier

2 1

[Dovecot] resolve mail_home ?
by Jan-Frode Myklebust 17 Jan '12

17 Jan '12

I now have "mail_home = /srv/mailstore/%256RHu/%d/%n". Is there any way of asking dovecot where a user's home directory is? It's not in "doveadm user": $ doveadm user -f home janfrode(a)lyse.net $ doveadm user janfrode(a)tanso.net userdb: janfrode(a)tanso.net mail : mdbox:~/mdbox quota_rule: *:storage=1048576 Alternatively, is there an easy way to calculate the %256RHu hash ? -jf

3 2

[Dovecot] little bug with Director in 2.1?
by Luca Di Vizio 17 Jan '12

17 Jan '12

Hi, in 2.1rc3 the "director_servers" setting does not accept hostnames as documented (with ip no problems). It works correctly in 2.0.17. Greetings, Luca

2 1

[Dovecot] Using Dovecot-auth to return error code 450 (or other 4xx) to Postfix when user is on vacation
by IVO GELOV (CRM) 17 Jan '12

17 Jan '12

Hello to all members. I am using Dovecot for 5 years, but this is my first post here. I am aware of the various autoresponder scripts for vacation autoreplies (I am using Virtual Vacation 3.1 by Mischa Peters). I have an issue with auto-replies - it is vulnerable to spamming with forged email address. Forging can be prevented with several Postfix settings, which I did in the past - but was forced to remove, because our company occasionaly has clients with improper configurations and those settings prevent us to receive their legitimate mail (and this of course is not good for the business). So I have though about another idea. Since I use Dovecot-auth to verify mailbox existence - I just wonder is it possible to somehow indicate specific error code (and hopefully descriptive text also) to Postfix (e.g. 450 or some other temporary failure) when the owner of the mailbox is currently on vacation ? Best wishes, IVO GELOV

5 16

[Dovecot] IMAP maillog error: file lib.c: line 37 (nearest_power): assertion failed: (num <= ((size_t)1 << (BITS_IN_SIZE_T-1)))
by Charles Thompson 15 Jan '12

15 Jan '12

Dear Mailing List, What does this error mean and how do I fix it? I am on a Centos 4.9 >From /var/log/maillog : Jan 14 11:54:51 hostname imap(username): file lib.c: line 37 (nearest_power): assertion failed: (num <= ((size_t)1 << (BITS_IN_SIZE_T-1))) Version information : root(a)hostname[/etc/rc.d/rc3.d]# dovecot --version ; dovecot -n ; cat /etc/*release* 0.99.11 Usage: dovecot [-F] [-c <config file>] Fatal: Unknown argument: -n CentOS release 4.9 (Final) root(a)hostname[/etc/rc.d/rc3.d]# Thank you. -- Sincerely, Charles Thompson *UNIX & Linux Administrator* Tel* : *(650) 906-9156 Web : www.kinesis.me Mail: mail(a)kinesis.me

3 2

[Dovecot] [PATCH] support master user to login as other users by DIGEST-MD5 SASL proxy authorization
by Yubao Liu 14 Jan '12

14 Jan '12

Hi Timo, As http://wiki2.dovecot.org/Authentication/MasterUsers states, currently the first way for master users to log in as other users only supports PLAIN SASL mechanism, and because DIGEST-MD5 uses user name to calculate MD5 digest, the second way can't support DIGEST-MD5. I enhance the code to support DIGEST-MD5 too for the first way, please review the attached patch against dovecot-2.0 HG tip. The patch also contains a little fix to "nonce-count" string, RFC 2831 shows it should be "nc". I tested it on Debian Wheezy, it seems OK. Below are my verification steps. (Debian packaged 2.0.15 + http://hg.dovecot.org/dovecot-2.0/rev/bed15faedfd4 + attached patch) $ doveconf -n # 2.0.15: /etc/dovecot/dovecot.conf # OS: Linux 3.1.0-1-686-pae i686 Debian wheezy/sid auth_default_realm = corp.example.com auth_krb5_keytab = /etc/dovecot.keytab auth_master_user_separator = * auth_mechanisms = gssapi digest-md5 cram-md5 auth_realms = corp.example.com auth_username_format = %n first_valid_gid = 1000 first_valid_uid = 1000 mail_location = mdbox:/srv/mail/%u/Mail 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 ihave passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes } passdb { driver = pam } plugin { sieve = /srv/mail/%u/.dovecot.sieve sieve_dir = /srv/mail/%u/sieve } protocols = " imap lmtp sieve" service auth { unix_listener auth-client { group = Debian-exim mode = 0660 } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { args = home=/srv/mail/%u driver = passwd } protocol lmtp { mail_plugins = " sieve" } protocol lda { mail_plugins = " sieve" } $ grep webmail2 /etc/dovecot/master-users webmail2:{DIGEST-MD5}458af98b24dce5db79f852d146d5a5ca $ gsasl -m DIGEST-MD5 --imap imap.corp.example.com -z dieken -a webmail2 -p 123456 -r corp.example.com Trying `gold.corp.example.com'... * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED AUTH=GSSAPI AUTH=DIGEST-MD5 AUTH=CRAM-MD5] Dovecot ready. . CAPABILITY * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED AUTH=GSSAPI AUTH=DIGEST-MD5 AUTH=CRAM-MD5 . OK Pre-login capabilities listed, post-login capabilities have more. . STARTTLS . OK Begin TLS negotiation now. . CAPABILITY * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=GSSAPI AUTH=DIGEST-MD5 AUTH=CRAM-MD5 . OK Pre-login capabilities listed, post-login capabilities have more. . AUTHENTICATE DIGEST-MD5 + cmVhbG09ImNvcnAuZXhhbXBsZS5jb20iLG5vbmNlPSI2Y0tvRWpoRkREQVpsRHM4Q05QTUx3PT0iLHFvcD0iYXV0aCIsY2hhcnNldD0idXRmLTgiLGFsZ29yaXRobT0ibWQ1LXNlc3Mi Enter quality of protection (optional, e.g. 'qop-int'): dXNlcm5hbWU9IndlYm1haWwyIiwgcmVhbG09ImNvcnAuZXhhbXBsZS5jb20iLCBub25jZT0iNmNLb0VqaEZEREFabERzOENOUE1Mdz09IiwgY25vbmNlPSJIUUZKQy9VbnFSb3lGb3orTWpOY2hnPT0iLCBuYz0wMDAwMDAwMSwgcW9wPWF1dGgsIGRpZ2VzdC11cmk9ImltYXAvaW1hcC5jb3JwLmV4YW1wbGUuY29tIiwgcmVzcG9uc2U9NjU0MTQ0NzM5MTFhNjNlMjE4ZDJmZjc0NmNjZjk0MjUsIGNoYXJzZXQ9dXRmLTgsIGF1dGh6aWQ9ImRpZWtlbiI= + cnNwYXV0aD04ZTNiZmZhMmNhOWM4YzczODU3Zjc2OWZiOGRlMTU3MQ== * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS Client authentication finished (server trusted)... Enter application data (EOF to finish): Session finished... . LOGOUT . OK Logged in * BYE Logging out $ sudo tail -f 30 /var/log/mail.log .... Jan 14 20:35:30 gold dovecot: auth: Debug: client in: AUTH#0111#011DIGEST-MD5#011service=imap#011secured#011lip=127.0.1.1#011rip=127.0.0.1#011lport=143#011rport=54455 Jan 14 20:35:30 gold dovecot: auth: Debug: client out: CONT#0111#011cmVhbG09ImNvcnAuZXhhbXBsZS5jb20iLG5vbmNlPSJsQzM0dlQ3QkxUOHdlc2VOOWIybzhnPT0iLHFvcD0iYXV0aCIsY2hhcnNldD0idXRmLTgiLGFsZ29yaXRobT0ibWQ1LXNlc3Mi Jan 14 20:35:32 gold dovecot: auth: Debug: client in: CONT#0111#011dXNlcm5hbWU9IndlYm1haWwyIiwgcmVhbG09ImNvcnAuZXhhbXBsZS5jb20iLCBub25jZT0ibEMzNHZUN0JMVDh3ZXNlTjliMm84Zz09IiwgY25vbmNlPSJQOTFta2VHZjFFS2kzQVgxMWVVT3FnPT0iLCBuYz0wMDAwMDAwMSwgcW9wPWF1dGgsIGRpZ2VzdC11cmk9ImltYXAvaW1hcC5jb3JwLmV4YW1wbGUuY29tIiwgcmVzcG9uc2U9OTllNzM2MDc0ZWE3YjE2NTE4NGQ3ZGVjY2E5ZGExNTgsIGNoYXJzZXQ9dXRmLTgsIGF1dGh6aWQ9ImRpZWtlbiI= Jan 14 20:35:32 gold dovecot: auth: Debug: auth(webmail2,127.0.0.1,master): Master user lookup for login: dieken Jan 14 20:35:32 gold dovecot: auth: Debug: passwd-file(webmail2,127.0.0.1,master): lookup: user=webmail2 file=/etc/dovecot/master-users Jan 14 20:35:32 gold dovecot: auth: passdb(webmail2,127.0.0.1,master): Master user logging in as dieken Jan 14 20:35:32 gold dovecot: auth: Debug: password(dieken,127.0.0.1): Credentials: 458af98b24dce5db79f852d146d5a5ca Jan 14 20:35:32 gold dovecot: auth: Debug: client out: CONT#0111#011cnNwYXV0aD04YmU5ZjFmN2UyMTRlMjI3MmY2YjEwMDU0YmYwNmMwZg== Jan 14 20:35:32 gold dovecot: auth: Debug: client in: CONT#0111#011 Jan 14 20:35:32 gold dovecot: auth: Debug: client out: OK#0111#011user=dieken Jan 14 20:35:32 gold dovecot: auth: Debug: master in: REQUEST#0112451832833#01115973#0111#011b7ff18971fd6967b00e2ea0ed2ef6278 Jan 14 20:35:32 gold dovecot: auth: Debug: passwd(dieken,127.0.0.1): lookup Jan 14 20:35:32 gold dovecot: auth: Debug: master out: USER#0112451832833#011dieken#011home=/srv/mail/dieken#011system_groups_user=dieken#011uid=1000#011gid=1000#011master_user=webmail2 Jan 14 20:35:32 gold dovecot: imap-login: Login: user=<dieken>, method=DIGEST-MD5, rip=127.0.0.1, lip=127.0.1.1, mpid=15974, TLS Jan 14 20:35:32 gold dovecot: imap: Debug: Added userdb setting: plugin/master_user=webmail2 Jan 14 20:35:32 gold dovecot: imap(dieken): Debug: Effective uid=1000, gid=1000, home=/srv/mail/dieken Jan 14 20:35:32 gold dovecot: imap(dieken): Debug: fs: root=/srv/mail/dieken/Mail, index=, control=, inbox=, alt= Jan 14 20:35:32 gold dovecot: imap(dieken): Debug: Namespace : Using permissions from /srv/mail/dieken/Mail: mode=0700 gid=-1 Jan 14 20:35:34 gold dovecot: imap(dieken): Disconnected: Logged out bytes=8/329 Jan 14 20:35:34 gold dovecot: imap-login: Warning: SSL alert: where=0x4008, ret=256: warning close notify [127.0.0.1] Jan 14 21:04:50 gold dovecot: imap(dieken): Disconnected: Logged out bytes=131/533 Jan 14 21:33:59 gold dovecot: imap-login: Login: user=<dieken>, method=DIGEST-MD5, rip=127.0.0.1, lip=127.0.1.1, mpid=16114, TLS Jan 14 21:34:03 gold dovecot: imap(dieken): Disconnected: Logged out bytes=8/329 Jan 14 21:36:56 gold dovecot: imap-login: Disconnected (no auth attempts): rip=127.0.0.1, lip=127.0.1.1 Jan 14 21:36:56 gold dovecot: imap-login: Disconnected (no auth attempts): rip=127.0.0.1, lip=127.0.1.1 Jan 14 21:36:58 gold dovecot: imap-login: Login: user=<dieken>, method=DIGEST-MD5, rip=127.0.0.1, lip=127.0.1.1, mpid=16135, TLS Jan 14 21:37:00 gold dovecot: imap(dieken): Disconnected: Logged out bytes=10/377 Regards, Yubao Liu

1 0

[Dovecot] Server Time 45min ahead
by maximus12 14 Jan '12

14 Jan '12

Hi, I have the issue that my server clock is 45min fast. Therefore I would like to install ntp. I read a lot on the internet about dovecot and ntp. My issue is that 45 min are a lot an I would like to minimize mail server downtimes as much as possible. I don't care if the time corrections with ntp takes more than a few month. Does anyone know how I should proceed (e.g. how I have to setup ntp -> no time jump during installation and afterwards). Thanks a lot for your help! -- View this message in context: http://old.nabble.com/Server-Time-45min-ahead-tp33126760p33126760.html Sent from the Dovecot mailing list archive at Nabble.com.

4 6

[Dovecot] Dsync and compressed mailboxes
by Joseba Torre 13 Jan '12

13 Jan '12

Hi, I will begin two migrations next week, and in both cases I plan to use compressed mailboxes with mdbox format. But in the last minute one doubt has appeared: is dsync aware of compressed mailboxes? I'm not sure if dsync -u $USER mirror mdbox:compressed_mdbox_path works, or if I have to use something else (I guess that with a running dovecot dsync backup should work). Thanks.

2 1

[Dovecot] (no subject)
by Geoffrey Broadwell 13 Jan '12

13 Jan '12

I'm working on a Dovecot plugin, but I'm pretty new to Dovecot, so there's a LOT to learn about the code base and it's pretty slow going. I've got a few things coded so far, but I want to make sure I'm headed down the right path and get some advice before I go too much further. A couple years ago, I wrote some code for our Courier implementation that sent a magic UDP packet to a small server each time a user modified their voicemail IMAP folder. That UDP server would then connect back to Courier via IMAP again and check whether the folder had any unread messages left in it. Finally, it would contact our phone switches to modify the state of the message waiting indicator (MWI) on that user's phone line appropriately. Fast forward to now, and we want to migrate wholesale to Dovecot 2.x. The servers are all in place, they've been well tested and burned in (with Dovecot 2.0.15 I believe), and the final migration is pretty much waiting on a port to Dovecot of the MWI update functionality. The good news is that I originally spent some effort to isolate the UDP packet generation and delivery, and I used purely standard portable code as per APUE2, so I think that chunk of code should be reusable with only minor modifications. I'm aware that internally Dovecot has its own memory, buffer, and string management functions, but it doesn't feel like a win to try to convert the existing code. It's small, completely isolated, and well reviewed -- I'd be more afraid of using the new (to me) Dovecot API incorrectly than I am that the existing code has bugs in buffer handling. By cribbing from other plugins and editing appropriately, I've also created the skeleton for my plugin: Makefile, docs, conf snippet, .spec (I'll be deploying the plugin as an RPM), and so on. I've got the beginnings of the .h and .c written, just enough to init and deinit the plugin by calling mail_storage_hooks_{add,remove}() with some stub hook functions. This all seems good so far; test builds are error-free and seem sane. So now the hard part is writing the piece that I can't just crib from elsewhere -- making sure that I hook every place in Dovecot that the user's voicemail folder can be changed in a way that would change it between having one or more unread messages, and not having any unread messages at all (or vice-versa, of course). At the same time, I want to minimize the performance impact to Dovecot (and the load on the UDP server) by only hooking the places I need to, filtering out as many false positives as I can without introducing massive complexity, and only pinging the UDP server when it's most likely to notice a change in the state of that user's voicemail server. It seems to me that I need to at least capture mailbox_allocated from the mail_storage hooks, for a couple reasons: 1. The state of the voicemail folder could be changed because the entire folder is created, destroyed, or renamed. 2. I want to only do further checks when I'm sure I'm looking at the voicemail folder. There's no reason to do work when the user is working with any other folder. So now the questions: Does all of the above seem sane so far? Do I need to hook mail_allocated as well, or will I be able to see any change I need to monitor just from the mailbox? Finally, I'm lost about what operations on the mailbox and the mails within it I need to check. Can anyone offer some advice (or doc pointers) on this? Thank you! -'f

4 5

[Dovecot] dsync conversion and ldap attributes
by Jan-Frode Myklebust 13 Jan '12

13 Jan '12

I have: mail_home = /srv/mailstore/%256RHu/%d/%n mail_location = maildir:~/:INDEX=/indexes/%1u/%1.1u/%u userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } and the dovecot-ldap.conf.ext specifies: user_attrs = mailMessageStore=home, mailLocation=mail, mailQuota=quota_rule=*:storage=%$ Now I want to convert individual users to mdbox using dsync, but how to I tell location2 to not fetch "home" and "mail" from ldap and use different mail_location (mdbox:~/mdbox) ? I.e. I want converted accounts stored in mail_location mdbox:/srv/mailstore/%256RHu/%d/%n/mdbox. -jf

1 0

[Dovecot] more than 200 imap processes for one user
by Götz Reinicke 13 Jan '12

13 Jan '12

HI, recently I noticed, that our dovecot server (RH EL 5.7 dovecot-1.0.7-7.el5_7.1) 'fires' up a lot of imap processes only for one user. I counted 214 :-) most of tham in the 'S' state and are started nearly at the same time within 5 minutes. Usually users do have about 4 to 10 .... Dose anyone has an idea, what could be the cause? Thanks for any suggestion and best regards . Götz -- Götz Reinicke IT-Koordinator Tel. +49 7141 969 420 Fax +49 7141 969 55 420 E-Mail goetz.reinicke(a)filmakademie.de Filmakademie Baden-Württemberg GmbH Akademiehof 10 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzender des Aufsichtsrats: Jürgen Walter MdL Staatssekretär im Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg Geschäftsführer: Prof. Thomas Schadt

2 1

[Dovecot] proxy, managesieve and ssl?
by Nicolas KOWALSKI 12 Jan '12

12 Jan '12

Hello, On a dovecot 2.0.14 proxy, I found that proxying managesieve works well when using 'starttls' option in pass_attrs, but does not work when using 'ssl' option. The backend server is also dovecot 2.0.14; when using the ssl option, it reports "no auth attempts" in the logs about managesieve-login, and meanwhile the MUA, Thunderbird with sieve plugin, reports [TRYLATER] account is temporary disabled; no problem when using starttls option on the proxy, all works well. I would like to use IMAPs, instead of IMAP+STARTTLS, from proxy to backend, and have Managesieve still working. Is this supported? Thanks, -- Nicolas

3 4

[Dovecot] could not start dovecot - unknown section type
by Daminto Lie 12 Jan '12

12 Jan '12

Hi, I was wondering if I could get some help with the following error when trying to start dovecot service on Ubuntu Server 10.04. The error message is as follows * Starting IMAP/POP3 mail server dovecot Error: Error in configuration file /usr/local/etc/dovecot/dovecot.conf line 15: Unknown section type Fatal: Invalid configuration in /usr/local/etc/dovecot/dovecot.conf [fail] I have just managed to upgrade it from 1.2.19 to 2.0.17. Then, I tried to start the dovecot by running the command $ sudo /etc/init.d/dovecot start And I received the above message. Below is the configuration for dovecot.conf # 2.0.17 (684381041dc4+): /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.32-37-generic-pae i686 Ubuntu 10.04.3 LTS ext4 auth_debug = yes auth_debug_passwords = yes auth_mechanisms = plain login auth_username_format = %Lu auth_verbose = yes base_dir = /var/run/dovecot disable_plaintext_auth = no first_valid_uid = 1001 last_valid_uid = 2000 log_timestamp = "%Y-%m-%d %H:%M:%S " mail_location = maildir:/home/vmail/%u/Maildir mail_privileged_group = mail passdb { driver = pam } passdb { args = /usr/local/etc/dovecot/dovecot-ldap.conf driver = ldap } plugin { quota = maildir quota_rule = *:storage=3GB quota_rule2 = Trash:storage=20%% quota_rule3 = Spam:storage=10%% quota_warning = storage=95%% /usr/local/bin/quota-warning.sh 95 quota_warning2 = storage=80%% /usr/local/bin/quota-warning.sh 80 } protocols = imap service auth { unix_listener /var/run/dovecot-auth-master { group = vmail mode = 0660 user = vmail } unix_listener /var/spool/postfix/private/auth { group = mail mode = 0660 user = postfix } user = root } service imap-login { chroot = login executable = /usr/lib/dovecot/imap-login inet_listener imap { address = * port = 143 } user = dovecot } service imap { executable = /usr/lib/dovecot/imap } service pop3-login { chroot = login user = dovecot } ssl = no userdb { driver = passwd } userdb { args = uid=1001 gid=1001 home=/home/vmail/%u allow_all_users=yes driver = static } verbose_proctitle = yes protocol imap { imap_client_workarounds = delay-newmail mail_plugins = quota imap_quota } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } protocol lda { auth_socket_path = /var/run/dovecot-auth-master mail_plugins = quota postmaster_address = postmaster(a)example.com rejection_reason = Your message to <%t> was automatically rejected:%n%r sendmail_path = /usr/lib/sendmail } Any help would be greatly appreciated. Thank you

2 2

[Dovecot] Dovecot LDA and address extensions - folders flood
by huret deffgok 11 Jan '12

11 Jan '12

Hi list, This post is slightly OT, I hope no one will take offense. I was following the wiki on using dovecot LDA with postfix and implemented, for our future mail server, the address extensions mechanism: an email sent to "validUser+foldername(a)mydomain.com" will have dovecot-lda automagically create and subscribe the "foldername" folder. With some basic scripting I was able to create hundreds of folders in a few seconds. So my question is how do you implement this great feature in a secure way so that funny random people out there cant flood your mailbox with gigatons of folder. Thanks, kfx

2 3

[Dovecot] Log imap commands
by forumer＠smartmobili.com 11 Jan '12

11 Jan '12

Hi, I am trying to optimize an imap library and I am comparing with some existing webmail, for instance from roundcube I can log the imap commands with the following format : [11-Jan-2012 14:22:55 +0100]: [DBD1] S: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=DIGEST-MD5 AUTH=CRAM-MD5] Dovecot ready. [11-Jan-2012 14:22:55 +0100]: [DBD1] C: A0001 ID ("name" "Roundcube Webmail" "version" "0.6" "php" "5.3.5-1ubuntu7.4" "os" "Linux" "command" "/") [11-Jan-2012 14:22:55 +0100]: [DBD1] S: * ID NIL [11-Jan-2012 14:22:55 +0100]: [DBD1] S: A0001 OK ID completed. [11-Jan-2012 14:22:55 +0100]: [DBD1] C: A0002 AUTHENTICATE CRAM-MD5 [11-Jan-2012 14:22:55 +0100]: [DBD1] S: + RDM1MTE1NjkxOTQzODE4NDEuMTMyNjI4ODE3NUBzZC0zMDYzNT4= [11-Jan-2012 14:22:55 +0100]: [DBD1] C: d2ViZ3Vlc3RAc21hcnRtb2JpbGkuY29tIDczODMxNjUzZmVlYzdjNDVlNzRkYTg1YjIwMjk2NWM0 [11-Jan-2012 14:22:55 +0100]: [DBD1] S: A0002 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS FUZZY] Logged in [11-Jan-2012 14:22:55 +0100]: [DBD1] C: A0003 NAMESPACE [11-Jan-2012 14:22:55 +0100]: [DBD1] S: * NAMESPACE (("" ".")) NIL NIL [11-Jan-2012 14:22:55 +0100]: [DBD1] S: A0003 OK Namespace completed. [11-Jan-2012 14:22:55 +0100]: [DBD1] C: A0004 LOGOUT [11-Jan-2012 14:22:55 +0100]: [DBD1] S: * BYE Logging out ... And now I would like to do the same from my imap library so I have started wireshark but it's a bit messy and difficult to compare. I was wondering if dovecot allows to log imap communications ? Thanks

3 5

[Dovecot] How to solve a "Connection queue full problem" - dovecot version 2.0.16
by Didier Gervaise 11 Jan '12

11 Jan '12

Hello, I put in production dovecot yesterday. After an hour, nobody could log in ("Max number of imap connection" error message on Thunderbird) Afterward, I found these messages in the logs: Jan 10 09:21:20 mailsrv dovecot: [ID 583609 mail.info] imap-login: Disconnected: Connection queue full (no auth attempts): rip=xxx.xxx.xxx.xxx, lip=xxx.xxx.xxx.xxx In the panic, I changed these values in /usr/local/etc/dovecot/conf.d/10-master.conf default_process_limit = 20000 default_client_limit = 20000 This apparently solved the problem but now I have these messages when I start dovecot: Jan 11 14:41:08 mailsrvspare dovecot: [ID 583609 mail.info] master: Dovecot v2.0.15 starting up Jan 11 14:41:08 mailsrvspare dovecot: [ID 583609 mail.warning] config: Warning: service auth { client_limit=4096 } is lower than required under max. load (103024) Jan 11 14:41:08 mailsrvspare dovecot: [ID 583609 mail.warning] config: Warning: service anvil { client_limit=20000 } is lower than required under max. load (60003) What should I do ? - adding "service_count = 0" in service imap-login { ... } and removing the modifications I did in 10-master.conf ? or - should I configure differently default_process_limit and default_client_limit ? It is a small site (about 1000 users). Currently I have 666 imap processes and 136 imap-login processes. Additionnal infos: The Server is a Solaris 10 Sun X4540 32GB RAM mailsrv:~ % /usr/local/sbin/dovecot -n # 2.0.16: /usr/local/etc/dovecot/dovecot.conf doveconf: Warning: service auth { client_limit=4096 } is lower than required under max. load (103024) doveconf: Warning: service anvil { client_limit=20000 } is lower than required under max. load (60003) # OS: SunOS 5.10 i86pc default_client_limit = 20000 default_process_limit = 20000 disable_plaintext_auth = no first_valid_uid = 100 mail_debug = yes mail_plugins = " quota" mail_privileged_group = mail 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 ihave passdb { driver = pam } plugin { quota = maildir:User quota quota_rule = ?:storage=4G quota_rule2 = Trash:storage=+100M quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=90%% quota-warning 90 %u quota_warning3 = storage=80%% quota-warning 80 %u sieve = ~/.dovecot.sieve sieve_dir = ~/ } postmaster_address = postmaster(a)esrf.fr protocols = imap pop3 lmtp sieve service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 } } service imap { process_limit = 2000 } service managesieve-login { inet_listener sieve { port = 4190 } } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { user = dovecot } user = dovecot } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } protocol lda { mail_plugins = " sieve" } protocol imap { imap_client_workarounds = tb-extra-mailbox-sep mail_plugins = " quota imap_quota" } Best Regards -- ________________________________________________________ Didier GERVAISE didier.gervaise(a)esrf.fr 04 76 88 27 28 System Administrator ---- Computing Services ESRF 6 rue Jules Horowitz 38043 Grenoble Cedex 09 ________________________________________________________

1 0

[Dovecot] Providing shared folders with multiple backend servers
by Sven Hartge 11 Jan '12

11 Jan '12

Hi *, I am currently in the planning stage for a "new and improved" mail system at my university. Right now, everything is on one big backend server but this is causing me increasing amounts of pain, beginning with the time a full backup takes. So naturally, I want to split this big server into smaller ones. To keep things simple, I want to pin a user to a server so I can avoid things like NFS or cluster aware filesystems. The mapping for each account is then inserted into the LDAP object for each user and the frontend proxy (perdition at the moment) then uses this information to route each access to the correct backend storage server running dovecot. So far this has been working nice with my test setup. But: I also have to provide shared folders for users. Thankfully users don't have the right to share their own folders, which makes things easier (I hope). Right now, the setup works like this, using Courier: - complete virtual mail setup - global shared folders configured in /etc/courier/shared/index - inside /home/shared-folder-name/Maildir/courierimapacl specific user get access to a folder - each folder a user has access is mapped to the namespace #shared like #shared.shared-folder-name Now, if I split my backend storage server into multiple ones and user-A is on server-1 and user-B is on server-2, but both need to access the same shared folder, I have a problem. I could of course move all users needing access to a shared folder to the same server, but in the end, this will be a nightmare for me, because I forsee having to move users around on a daily basis. Right now, I am pondering with using an additional server with just the shared folders on it and using NFS (or a cluster FS) to mount the shared folder filesystem to each backend storage server, so each user has potential access to a shared folders data. Ideas? Suggestions? Nudges in the right direction? Grüße, Sven. -- Sigmentation fault. Core dumped.

6 34

[Dovecot] Dovecot under Virtual Host environment??
by sparkietm 10 Jan '12

10 Jan '12

Hi all, Could anyone point me to a walk-through of setting up Dovecot for multiple domains under a Virtual Host environment? I'd like to offer clients their own email domain for each virtual host e.g john(a)client_1.com, sue(a)client_2.com. I'm guessing this is fairly common set-up, but a search on "multiple domains" didn't bring much back. Also, would it be possible to offer each client webmail? Many thanks in advance Mark -- View this message in context: http://old.nabble.com/Dovecot-under-Virtual-Host-environment---tp33114381p3… Sent from the Dovecot mailing list archive at Nabble.com.

2 1

[Dovecot] dsync panic
by Jürgen Obermann 10 Jan '12

10 Jan '12

Hello, when I try to convert from mbox to mdbox with dsync with one user it always panics: # /opt/local/bin/dsync -v -u userxy backup ssh root@minerva1 /opt/local/bin/dsync -v -u userxy dsync-local(userxy): Info: Papierkorb: uidnext changed: 161 != 1 dsync-local(userxy): Info: INBOX: uidnext changed: 9139 != 9105 dsync-local(userxy): Info: Trash: uidnext changed: 3924 != 3915 dsync-local(userxy): Info: Drafts: uidnext changed: 1563 != 1 dsync-local(userxy): Info: Gesendet: uidnext changed: 369 != 1 dsync-local(userxy): Info: Sent: uidnext changed: 1955 != 1 dsync-remote(userxy): Panic: Trying to allocate 2147483648 bytes dsync-remote(userxy): Error: Raw backtrace: 0xff14bc30 -> 0xff1658c0 -> 0xff15744c -> 0xff157520 -> 0xff159d90 -> 0xff156540 -> 0xff15cf5c -> 0xff156540 -> 0xff157100 -> 0xff16d158 -> 0xff16cfe8 -> 0xff26e350 -> 0x251c4 -> 0x2547c -> 0x21110 -> 0x20494 -> 0x1f230 -> 0x1f3d4 -> 0xff15e46c -> 0xff15f738 -> 0xff15e530 -> 0xff140ec8 -> 0x1525c -> 0x14608 Abort dsync-local(userxy): Error: read() from worker server failed: EOF dsync-local(userxy): Error: Unexpected reply from server: My local configuration is: # /opt/local/bin/doveconf -n # 2.0.16: /opt/local/etc/dovecot/dovecot.conf # OS: SunOS 5.10 sun4v auth_verbose = yes disable_plaintext_auth = no lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = imap.hrz.uni-giessen.de localhost mail_fsync = always mail_location = mbox:~/Mail:INBOX=/var/mail/%u mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = mail_log notify zlib 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 ihave mmap_disable = yes namespace { inbox = yes location = prefix = separator = / type = private } namespace { hidden = yes list = no location = prefix = Mail/ separator = / subscriptions = yes type = private } passdb { driver = pam } passdb { args = /opt/local/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { autocreate = Trash autocreate2 = caughtspam autocreate3 = Sent autocreate4 = Drafts autosubscribe = Trash autosubscribe2 = caughtspam autosubscribe3 = Sent autosubscribe4 = Drafts mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } postmaster_address = postmaster(a)hrz.uni-giessen.de quota_full_tempfail = yes sendmail_path = /usr/lib/sendmail service auth { client_limit = 11120 } service imap-login { process_min_avail = 16 service_count = 0 vsz_limit = 640 M } service imap { process_limit = 4096 vsz_limit = 1 G } ssl_cert = </etc/ssl/imap_hrz.crt ssl_key = </etc/ssl/imap_hrz.key syslog_facility = local0 userdb { driver = passwd } version_ignore = yes protocol lda { info_log_path = log_path = mail_plugins = mail_log notify zlib sieve } protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags mail_max_userip_connections = 20 mail_plugins = mail_log notify zlib autocreate imap_zlib } protocol lmtp { mail_plugins = mail_log notify zlib sieve } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xv%08Xu } On the remote side the configuration is # 2.0.16: /opt/local/etc/dovecot/dovecot.conf # OS: SunOS 5.10 sun4u zfs auth_debug = yes auth_debug_passwords = yes auth_verbose = yes disable_plaintext_auth = no lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = minerva1.hrz.uni-giessen.de mail_debug = yes mail_fsync = always mail_location = mdbox:/sanpool/mail%h/mdbox mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = mail_log notify quota zlib 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 ihave mdbox_rotate_interval = 1 days mdbox_rotate_size = 16 M mmap_disable = yes namespace { inbox = yes location = prefix = separator = / type = private } namespace { hidden = yes list = no location = prefix = Mail/ separator = / subscriptions = yes type = private } namespace { location = maildir:/var/mail/public:CONTROL=/sanpool/mail/%u/Maildir/public:INDEX=/sanpool/mail/%u/Maildir/public prefix = Public/ separator = / subscriptions = no type = public } passdb { driver = pam } passdb { args = /opt/local/etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { autocreate = Trash autocreate2 = caughtspam autocreate3 = Sent autocreate4 = Drafts autosubscribe = Trash autosubscribe2 = caughtspam autosubscribe3 = Sent autosubscribe4 = Drafts fts = squat mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size quota = fs:Home-Verzeichnis:noenforcing zlib_save = gz zlib_save_level = 3 } postmaster_address = postmaster(a)hrz.uni-giessen.de quota_full_tempfail = yes sendmail_path = /usr/lib/sendmail service auth { client_limit = 11120 } service imap-login { process_min_avail = 16 service_count = 0 vsz_limit = 640 M } service imap { process_limit = 4096 vsz_limit = 1 G } ssl_cert = </etc/ssl/server.crt ssl_key = </etc/ssl/server.key syslog_facility = local0 userdb { driver = passwd } version_ignore = yes protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags mail_max_userip_connections = 20 mail_plugins = mail_log notify quota zlib autocreate fts fts_squat imap_quota imap_zlib } protocol lda { info_log_path = log_path = mail_plugins = mail_log notify quota zlib sieve } protocol lmtp { mail_plugins = mail_log notify quota zlib sieve } protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xv%08Xu } Thank you, Jürgen Obermann Hochschulrechenzentrum der Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 44 Tel. 0641-9913054

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[Dovecot] A small bug and a question about CONTEXT=SEARCH
by Anders 10 Jan '12

10 Jan '12

Hi, I have been looking at search and sorting with dovecot and have run into some things. The first one I think may be a minor bug because a set of commands result in the socket connection being closed without warning: UID SEARCH RETURN (SAVE COUNT) CHARSET UTF-8 (UNDELETED TEXT "foo") UID SEARCH RETURN (COUNT MIN) CHARSET UTF-8 () $ The empty paranthesis before the reference to the previous search result ($) is not legal IMAP, but should not cause the socket to be closed I think. Then I have question about RFC5267 and the announcement of CONTEXT=SEARCH in the capabilities. I think this RFC is supported by dovecot, or maybe just part of the RFC is supported? At least when I include the CONTEXT ADDTO or REMOVEFROM keywords I get an error, but UPDATE and CANCELUPDATE seem to be supported. The RFC has been updated by the RFC describing the NOTIFY extension to IMAP so maybe it has been decided to not add these keywords until a later time? I am using dovecot version 2.0.15 (with patches from Apple). Best Regards Anders

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[Dovecot] rewriting mail_location
by Burckhard Schmidt 10 Jan '12

10 Jan '12

Hello, I have LDAP as userdb. Entries containing attributes mail=alias.user1(a)some.domain.de and uid=user1 Mail to alias.user1(a)some.domain.de gets delivered into /datatest/user/alias.user1 instead of /datatest/user/user1 by lda. I have userdb { args = /usr/dovecot/etc/ldapuser.conf driver = ldap } with a ldapuser.conf: hosts ... base ... user_filter = (&(|(mail=%u)(mail=%n(a)some.domain) (uid=%u))(objectClass=posixAccount)) user_attrs = uid=mail_location=maildir:/datatest/user/%$, uidNumber=29,gidNumber=133 I hoped local part of attribute mail could be replaced by uid for local delivery with dovecots lda? Any hints how to do that? (With postfix I could rewrite the address to uid@host and use local_transport = dovecot.) postfix has virtual_transport = dovecot. LDAP entry: mail: alias.user1(a)some.domain.de uid: user1 homeDirectory: /dev/null uidNumber: 464 gidNumber: 100 mail to alias.user1(a)some.domain.de Jan 10 14:03:24 ubu1004 postfix/qmgr[25221]: C434D1EE: from=<user@domain>, size=239, nrcpt=1 (queue active) Jan 10 14:03:24 ubu1004 dovecot: lda: Debug: Loading modules from directory: /usr/dovecot/lib/dovecot Jan 10 14:03:24 ubu1004 dovecot: lda: Debug: Module loaded: /usr/dovecot/lib/dovecot/lib20_autocreate_plugin.so Jan 10 14:03:24 ubu1004 dovecot: auth: Debug: master in: USER#0111#011alias.user1#011service=lda Jan 10 14:03:24 ubu1004 dovecot: auth: Debug: ldap(alias.user1): user search: base=ou=users,ou=...,c=de scope=subtree filter=(&(|(mail=alias.user1)(mail=alias.user1(a)some.domain.de)(uid=alias.user1))(objectClass=posixAccount)) fields=uid,uidNumber,gidNumber some substitutions are visibly: Jan 10 14:03:24 ubu1004 dovecot: auth: Debug: ldap(alias.user1): result: uid(location=maildir:/datatest/user/%$/maildir)=user1 gidNumber(133)=100 uidNumber(29)=464 Jan 10 14:03:24 ubu1004 dovecot: auth: Debug: master out: USER#0111#011alias.user1#011location=maildir:/datatest/user/user1/maildir#011133=100#01129=464 Jan 10 14:03:24 ubu1004 dovecot: lda: Debug: auth input: alias.user1 location=maildir:/datatest/user/user1/maildir 133=100 29=464 Jan 10 14:03:24 ubu1004 dovecot: lda: Debug: Added userdb setting: plugin/location=maildir:/datatest/user/user1/maildir but alias "alias.user1" still used for delivery: Jan 10 14:03:24 ubu1004 dovecot: lda: Debug: Added userdb setting: plugin/133=100 Jan 10 14:03:24 ubu1004 dovecot: lda: Debug: Added userdb setting: plugin/29=464 Jan 10 14:03:24 ubu1004 dovecot: lda(alias.user1): Debug: Effective uid=29, gid=133, home= Jan 10 14:03:24 ubu1004 dovecot: lda(alias.user1): Debug: Namespace : type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/datatest/user/alias.user1/maildir:INDEX=/datatest/addons/index/alias.user1:CONTROL=/datatest/user/alias.user1/control:LAYOUT=fs Jan 10 14:03:24 ubu1004 dovecot: lda(alias.user1): Debug: fs: root=/datatest/user/alias.user1/maildir, index=/datatest/addons/index/alias.user1, control=/datatest/user/alias.user1/control, inbox=/datatest/user/alias.user1/maildir, alt= Jan 10 14:03:24 ubu1004 dovecot: lda(alias.user1): Debug: Namespace : Using permissions from /datatest/user/alias.user1/maildir: mode=0700 gid=-1 Jan 10 14:03:24 ubu1004 dovecot: lda(alias.user1): Debug: none: root=, index=, control=, inbox=, alt= Jan 10 14:03:24 ubu1004 dovecot: lda(alias.user1): Debug: Destination address: alias.user1@ubu1004 (source: user@hostname) Jan 10 14:03:24 ubu1004 dovecot: lda(alias.user1): msgid=unspecified: saved mail to INBOX Jan 10 14:03:24 ubu1004 postfix/pipe[25226]: C434D1EE: to=<alias.user1(a)some.domain.de>, relay=dovecot, delay=14, delays=14/0.01/0/0.02, dsn=2.0.0, status=sent (delivered via dovecot service) Jan 10 14:03:24 ubu1004 postfix/qmgr[25221]: C434D1EE: removed dovecot -n # 2.0.17 (684381041dc4+): /usr/dovecot/etc/dovecot/dovecot.conf # OS: Linux 2.6.32-34-generic-pae i686 Ubuntu 10.04.3 LTS ext4 mail_gid = sysdov mail_location = maildir:/datatest/user/%n/maildir:INDEX=/datatest/addons/index/%n:CONTROL=/datatest/user/%n/control:LAYOUT=fs mail_plugins = autocreate mail_uid = sysdov passdb { args = failure_show_msg=yes imap driver = pam } service auth { client_limit = 30000 unix_listener auth-userdb { group = sysdov #effective 133 mode = 01204 user = sysdov #effective 29 } } userdb { args = /usr/dovecot/etc/ldapuser.conf driver = ldap } protocol lda { mail_plugins = autocreate } and ldapuser.conf: hosts ... base ... user_filter = (&(|(mail=%u)(mail=%n(a)some.domain) (uid=%u))(objectClass=posixAccount)) user_attrs = uid=mail_location=maildir:/datatest/user/%$, uidNumber=29,gidNumber=133 local part of mail should be replaced by uid for local delivery -- Regards --- Burckhard Schmidt

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[Dovecot] Proxy login failures
by Urban Loesch 10 Jan '12

10 Jan '12

Hi, I'm using two dovecot pop3/imap proxies in front of our dovecot servers. Since some days I see many of the following errors in the logs of the two proxy-servers: ... dovecot: pop3-login: Error: proxy: Remote "IPV6-IP":110 disconnected: Connection closed: Connection reset by peer (state=0): user=<myuser>, method=PLAIN, rip=remote-ip, lip=localip ... dovecot: imap-login: Error: proxy: Remote "IPV6-IP":143 disconnected: Connection closed: Connection reset by peer (state=0): user=<myuser>, method=PLAIN, rip=remote-ip, lip=localip ... When this happens the Client gets the following error from the proxy: -ERR [IN-USE] Account is temporarily unavailable. System-details: OS: Debian Linux Proxy: 2.0.5-0~auto+23 Backend: 2.0.13-0~auto+54 Have you any idea what could cause this type of error? Thanks and regards Urban Loesch doveconf -n from one of our backendservers: # 2.0.13 (02d97fb66047): /etc/dovecot/dovecot.conf # OS: Linux 2.6.38.8-vs2.3.0.37-rc17-rol-em64t-timerp x86_64 Debian 6.0.2 ext4 auth_cache_negative_ttl = 0 auth_cache_size = 40 M auth_cache_ttl = 12 hours auth_mechanisms = plain login auth_username_format = %Lu auth_verbose = yes deliver_log_format = msgid=%m: %$ %p %w disable_plaintext_auth = no login_trusted_networks = our Proxy IP's (v4 and v6) mail_gid = mailstore mail_location = mdbox:/home/vmail/%d/%n:INDEX=/home/dovecotindex/%d/%n mail_plugins = " quota mail_log notify zlib" mail_uid = mailstore 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 ihave imapflags notify mdbox_rotate_size = 5 M passdb { args = /etc/dovecot/dovecot-sql-account.conf driver = sql } plugin { mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size from mail_log_group_events = no quota = dict:Storage used::file:%h/dovecot-quota sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags sieve_max_redirects = 10 zlib_save = gz zlib_save_level = 5 } protocols = imap pop3 lmtp sieve service imap-login { inet_listener imap { port = 143 } service_count = 0 vsz_limit = 256 M } service lmtp { inet_listener lmtp { address = * port = 24 } unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0666 user = postfix } vsz_limit = 512 M } service pop3-login { inet_listener pop3 { port = 110 } service_count = 0 vsz_limit = 256 M } ssl = no ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { args = /etc/dovecot/dovecot-sql-account.conf driver = sql } protocol lmtp { mail_plugins = " quota mail_log notify zlib sieve zlib" } protocol imap { imap_client_workarounds = tb-extra-mailbox-sep mail_max_userip_connections = 40 mail_plugins = " quota mail_log notify zlib imap_quota imap_zlib" } protocol pop3 { mail_plugins = " quota mail_log notify zlib" pop3_logout_format = bytes_sent=%o top=%t/%p, retr=%r/%b, del=%d/%m, size=%s uidl_hash=%u }

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[Dovecot] Strange error: DIGEST-MD5 mechanism can't be supported with given passdbs
by Yubao Liu 10 Jan '12

10 Jan '12

Hi all, I have no idea about that message, here is my configuration, what's wrong? Debian testing, Dovecot 2.0.15 $ doveconf -n # 2.0.15: /etc/dovecot/dovecot.conf # OS: Linux 3.1.0-1-686-pae i686 Debian wheezy/sid auth_default_realm = corp.example.com auth_krb5_keytab = /etc/dovecot.keytab auth_master_user_separator = * auth_mechanisms = gssapi digest-md5 auth_realms = corp.example.com auth_username_format = %n first_valid_gid = 1000 first_valid_uid = 1000 mail_location = mdbox:/srv/mail/%u/Mail 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 ihave passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes pass = yes } passdb { driver = pam } plugin { sieve = /srv/mail/%u/.dovecot.sieve sieve_dir = /srv/mail/%u/sieve } protocols = " imap lmtp sieve" service auth { unix_listener auth-client { group = Debian-exim mode = 0660 } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { args = home=/srv/mail/%u driver = passwd } protocol lmtp { mail_plugins = " sieve" } protocol lda { mail_plugins = " sieve" } # cat /etc/dovecot/master-users xxx@corp.example.com:zzzzzzzz The zzzzz is obtained by "doveadm pw -s digest-md5 -u xxx(a)corp.example.com", I tried to add prefix "{DIGEST-MD5}" before the generated hash and/or add "scheme=DIGEST-MD5" to the passwd-file passdb's "args" option, both don't help. The error message: dovecot: master: Dovecot v2.0.15 starting up (core dumps disabled) dovecot: auth: Fatal: DIGEST-MD5 mechanism can't be supported with given passdbs gold dovecot: master: Error: service(auth): command startup failed, throttling I opened debug auth log, it showed dovecot read /etc/dovecot/master-users and parsed one line, then the error occurred. Doesn't passwd-file passdb support digest-md5 password scheme? If it doesn't support, how do I configure digest-md5 auth mechanism with digest-md5 password scheme for virtual users? Regards, Yubao Liu

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[Dovecot] Postfix user map
by Timo Sirainen 10 Jan '12

10 Jan '12

http://hg.dovecot.org/dovecot-2.1/rev/f562bcaca215 implements "postmap" type sockets, which follow Postfix's tcp_table(5) protocol. So you can ask: get user@domain and Dovecot answers one of: - 200 1 - 500 User not found - 400 Internal failure So you can use this with Postfix: virtual_mailbox_maps = tcp:127.0.0.1:1234 With Dovecot you can enable it with: service auth { inet_listener postmap { listen = 127.0.0.1 port = 1234 } } Anyone have ideas if this could be improved, or used for some other purposes?

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