- dovecot - dovecot.org

Re: [Dovecot] dovecot-1.2.8 imap crash (with backtrace)
by David Halik 06 Jan '10

06 Jan '10

I found this post from a couple of weeks ago: http://www.mail-archive.com/dovecot@dovecot.org/msg24127.html Any update on this? I'm experiencing the same issue. Out of a user population of 4000, I get about 20 of these dumps a day, so it's not major issue, but I thought I'd follow up. Here is an example: http://pastebin.com/f29c55de5 I can provide a more detailed debug log from teh core dump if necessary, but since the above email already had it I figured I'd wait. Note this is *not* the same issue as: - maildir: v1.2.7 and v1.2.8 caused assert-crashes in maildir_uidlist_records_drop_expunges() I applied those patches to my 1.2.8 installation before 1.2.9 was released and that immediately fixed the expunge crash, but the array_delete bug is still there. dovecot -n --------------- bash-3.2# /usr/sbin/dovecot -n # 1.2.8: /etc/dovecot.conf # OS: Linux 2.6.18-164.6.1.el5 x86_64 CentOS release 5.4 (Final) listen: * ssl_cert_file: /rci/local/certs/imapd-pop3d.pem ssl_key_file: /rci/local/certs/imapd-pop3d.pem disable_plaintext_auth: yes login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login login_max_processes_count: 2048 max_mail_processes: 2048 first_valid_uid: 100 mail_location: maildir:~/Maildir:INDEX=/rci/nqu%h/dovecot:CONTROL=/rci/nqu%h/dovecot mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes mail_drop_priv_before_exec: yes mail_executable(default): /rci/local/etc/convert-courier-imap.sh mail_executable(imap): /rci/local/etc/convert-courier-imap.sh mail_executable(pop3): /rci/local/etc/convert-courier-pop.sh mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 pop3_uidl_format(default): %08Xu%08Xv pop3_uidl_format(imap): %08Xu%08Xv pop3_uidl_format(pop3): UID%u-%v namespace: type: private separator: . prefix: INBOX. inbox: yes list: yes subscriptions: yes auth default: passdb: driver: pam args: dovecot userdb: driver: passwd -- ================================ David Halik System Administrator OIT-CSS Rutgers University dhalik(a)jla.rutgers.edu ================================

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Re: [Dovecot] Sieve > Pigeonhole > external storage with LDAP or other data source available to dovecot
by Martin F. Foster 06 Jan '10

06 Jan '10

> On 5.1.2010, at 10.02, Martin F. Foster wrote: > > >> I am looking at porting and generalizing an old in-house patch that I'm using for the CMU Sieve plugin. It allows sieve script to test& lookup arguments from LDAP. >> > .. > >> Related work: >> >> 1. Pigeonhole low priority TODO would like to implement alternate >> script storage, eg: LDAP& SQL. I'm not immediately interested in >> alternate types of script storage, but for what I want to acheive, >> I need to sanely access at least an LDAP directory. >> 2. draft-ietf-sieve-external-lists >> (http://tools.ietf.org/html/draft-ietf-sieve-external-lists-01) >> proposes a mechanism to pull mailing list addresses from external >> storage mechanisms such as LDAP, ACAP or relational databases. I'm interested in this, but would like to extend this >> functionality beyond just lists as the example above demonstrates. >> > I haven't looked into that draft or thought much about this, but would doing the lookups via Dovecot's lib-dict be ok? That would of course need a dict-ldap backend implemented, but it would be a generic way to solve this, if its API is good enough. > After another day of looking into this, I believe that there are two concerns to be addressed: 1. dovecot implementation: how dovecot/pigeonhole provides access to these external sources in a sane way. I do like the dict interface for this, which could keep LDAP url's (or SQL queries, etc) out of sieve scripts, and into nicely compartementalized configuration files. Being very ldap focussed at my site, I hadn't looked at dict before today. 2. sieve language: an extension which would allow scripts to get information from an external source. I'm asking the draft-ietf-sieve-external-lists authors a few questions about this. The end result would be something like what follows: Dovecot implementation (proposed): ------------------------------------- <dovecot.conf> dict { dict_sieve = ldap:/etc/dovecot/dovecot-sieve-ldap.conf } plugin { # TODO: proxy this dict? sieve_extsrc = dict } </dovecot.conf> then I'm not sure how you specify multiple hosts with the dict-sql format, so I'm using the postfix convention. there's probably a better way for dovecot. <dovecot-sieve-ldap.conf> map { name = responder_mode server_host = ldap://server1.mycorp.com, ldap://server2.mycorp.com search_base = o=mailstuff query_filter = (&(objectclass=mailschema)(uid=%u)) result_attribute = responder_mode result_scope = sub bind = no version = 3 } map { name = responder_text server_host = ldap://server1.mycorp.com, ldap://server2.mycorp.com search_base = o=mailstuff query_filter = (&(objectclass=mailschema)(uid=%u)) result_attribute = responder_text result_scope = sub bind = no version = 3 } map { name = forward_keep server_host = ldap://server1.mycorp.com, ldap://server2.mycorp.com search_base = o=mailstuff query_filter = (&(objectclass=mailschema)(uid=%u)) result_attribute = mailForwardKeep result_scope = sub bind = no version = 3 } map { # in this case we can have many responses name = forward_addresses server_host = ldap://server1.mycorp.com, ldap://server2.mycorp.com search_base = o=mailstuff query_filter = (&(objectclass=mailschema)(uid=%u)) result_attribute = mailForwardAddress result_scope = sub bind = no version = 3 } </dovecot-sieve-ldap.conf> Sieve language: --------------------- then with proposed new functions of the sieve language (all names plucked out of my head 2hrs ago, would have to think about the semantics some more): 1. a “:list” argument that expects a string-list 2. a “:extsrc” argument that expects an <ext-name: string> and returns a string-list 3. a “:extsrc1” argument that expects an <ext-name: string> and returns a string 4. a new test that uses information that is not in the message, say “arbitrary [comparator] string string” (syntax needs work) sample uses in scripts are then: 1. redirect to a mailing list sourced from ldap (or wheverver): # mailForwardAddress attribute can be present >=0 times redirect :list :extsrc “dict:forward_addresses” 2. decide whether to keep or discard forwarded messages (eg: after the above rule) # mailForwardKeep attribute should only be present once, if at all if arbitrary :is :extsrc1 “dict:forward_keep” “TRUE” { keep; } 3. decide vacation action and text based in information in an ldap dir: # mailResponderMode & mailResponderText attrs should only be present once, if at all if arbitrary :is :extsrc1 “dict:responder_mode” “alwaysreply” { vacation :days 1 :extsrc1 “dict:responder_text"; } if arbitrary :is :extsrc1 “dict:responder_mode” “holiday” { vacation :days 30 :extsrc1 “dict:responder_text”; } ... where the "dict:mapname" syntax would be dovecot implementation specific. could also support the URL & TAG-URI schemes as proposed by draft-ietf-sieve-external-lists. This would allow query URLs as a more general case, using whatever's configured in /etc/ldap/ldap.conf (or whatever the platform's ldap client lib uses). Doing this does raise some resource consumption concerns, hence there should probably be a means of restricting external queries to global scripts only (or sieve_before, sieve_after), and a means of providing timeout values, etc. eg: if arbitrary :is :extsrc1 “ldap:///o=myorg?mailForwardKeep” “TRUE” { keep; } I'll keep on thinking about the design, staring intently at the dovecot sources and http://wiki.dovecot.org/Design for another couple days before attempting to write some code to test this. Feedback on the design of both the sieve language extension, & dovecot interface very appreciated. Cheers, -Martin Foster

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[Dovecot] Failed IMAP Login Attempts in Logs
by Carlos Williams 06 Jan '10

06 Jan '10

I had a user telling me that they can't login to the Postfix email server via Webmail (RoundCube) and I decided to see if I could locate this issue in the logs and understand if the user was simply using a wrong password credential and or something more serious. More than likely the person is just using a wrong password but in search of this on my logs, I don't understand why Dovecot doesn't log failed login attempts. When I attempted to login with a wrong password, I show the following in my logs: [root@mail log]# cat /var/log/maillog | grep 'Jan 5' | grep -i 'dovecot' | grep -i 'carlos' Jan 5 11:00:13 mail dovecot: imap-login: Disconnected: user=<carlos>, method=PLAIN, rip=::ffff:192.168.0.10, lip=::ffff:192.168.0.10 Is there a log level or something I am not searching for that will allow me to see failed or invalid logins for Dovecot (IMAP)? Thanks!

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[Dovecot] Sorting in IMAP list command?
by Ronald Johnson 06 Jan '10

06 Jan '10

Hi All, I'm running Dovecot 1.2.9 and have noticed the IMAP list command does not appear to send a sorted list of folders with list command. For example on our Cyrus server I get a sorted list of folders (with INBOX listed first): 2 list "" "*" * LIST (\Noinferiors) "/" "INBOX" * LIST (\HasNoChildren) "/" "CalProject" * LIST (\HasNoChildren) "/" "Deleted Messages" * LIST (\HasNoChildren) "/" "Drafts" ... while on our Dovecot server I get seemingly random listing: 2 list "" "*" * LIST (\HasNoChildren) "/" "lsf" * LIST (\HasNoChildren) "/" "mrg" * LIST (\HasNoChildren) "/" "studiosysadmins" * LIST (\HasNoChildren) "/" "Deleted Messages" * LIST (\HasNoChildren) "/" "TriTeam" * LIST (\HasNoChildren) "/" "systemupdates" * LIST (\HasNoChildren) "/" "bb" * LIST (\HasNoChildren) "/" "nagios" * LIST (\HasNoChildren) "/" "server" ... Is this intentional, or have I done something wrong? I didn't see any option in the dovecot.conf to set the behavior of the list output. Here is `dovecot -n`: # 1.2.9: /usr/local/etc/dovecot.conf # OS: Linux 2.6.18-164.6.1.el5 x86_64 Red Hat Enterprise Linux Server release 5.4 (Tikanga) nfs protocols: imap imaps managesieve ssl_cert_file: /etc/pki/dovecot/certs/dovecot.pem ssl_key_file: /etc/pki/dovecot/private/dovecot.pem disable_plaintext_auth: no login_dir: /usr/local/var/run/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(managesieve): /usr/local/libexec/dovecot/managesieve-login mail_access_groups: BOLT mail_location: maildir:/var/dovecot/imap/%u/Maildir mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(managesieve): /usr/local/libexec/dovecot/managesieve mail_plugins(default): acl imap_acl autocreate mail_plugins(imap): acl imap_acl autocreate mail_plugins(managesieve): mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(managesieve): /usr/local/lib/dovecot/managesieve namespace: type: private separator: / inbox: yes list: yes subscriptions: yes namespace: type: public separator: / prefix: Public/ location: maildir:/var/dovecot/imap/public:CONTROL=/var/dovecot/imap/%u/Maildir/public:INDEX=/var/dovecot/imap/%u/Maildir/public list: yes namespace: type: public separator: / prefix: Boltlogs/ location: maildir:/var/dovecot/imap/boltlogs/Maildir/:CONTROL=/var/dovecot/imap/%u/Maildir/public-boltlogs:INDEX=/var/dovecot/imap/%u/Maildir/public-boltlogs list: yes lda: postmaster_address: postmaster(a)example.com mail_plugins: sieve acl mail_plugin_dir: /usr/local/lib/dovecot/lda/ auth default: passdb: driver: pam userdb: driver: passwd plugin: acl: vfile sieve: /var/dovecot/imap/%u/home/.dovecot.sieve sieve_dir: /var/dovecot/imap/%u/home/sieve home: /var/dovecot/imap/%u/home autocreate: Trash autosubscribe: Trash Cheers, Ron

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[Dovecot] Dovecot quota not working
by Bruno Guimarães Sousa 05 Jan '10

05 Jan '10

Hi everyone, I'm trying to make quota to work in dovecot 1.0.rc15 in a Debian machine. Setting the limit to 1GB and starting to fill up the mailbox and nothing stopped me. It just kept growing and nothing happened. Restarted the service and nothing. I had already exceeded the 1 GB limit and nothing happens, the mailbox still goes bigger and bigger... The *"check_quota"* plugin for squirrelmail shows "0.0% of 1.0GB" in my browser. 1GB is exactly what it is defined in dovecot.conf by maildir. Is it necessary to configure something in postfix? Details: # dovecot --version 1.0.rc15 # dovecot -n # /etc/dovecot/dovecot.conf IEffective uid=65534, gid=65534 ILoading modules from directory: /usr/lib/dovecot/modules/imap IModule loaded: /usr/lib/dovecot/modules/imap/lib01_quota_plugin.so IModule loaded: /usr/lib/dovecot/modules/imap/lib02_imap_quota_plugin.so log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap pop3 ssl_disable: yes 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 first_valid_uid: 0 first_valid_gid: 0 mail_privileged_group: users mail_location: mbox:/home/%u:INBOX=/var/mail/%u mail_debug: yes mmap_disable: yes mbox_read_locks: flock mbox_write_locks: flock 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 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv auth default: passdb: driver: pam userdb: driver: passwd regards, -- Bruno Guimarães Sousa www.ifba.edu.br PONTONET - DGTI - IFBA Ciência da Computação UFBA Registered Linux user #465914

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[Dovecot] Managesieve and Dovecot from ATRPM - Still no luck
by Oli Schacher 05 Jan '10

05 Jan '10

Hi list I'm still trying to get managesieve running on centos x64 with the packages from atrpm. I used the 1.2.9 rpms (also rebuilt with the lastet managesieve patches) but I'm always getting the same error when trying to compile managesieve: ./configure --with-dovecot=/usr/lib64/dovecot/ --with-dovecot-sieve=/work/dovecot-1.2-sieve-0.1.14 (no errors) make gcc -DHAVE_CONFIG_H -I. -I../.. -I/usr/include/dovecot -I/usr/include/dovecot/src/lib -I/usr/include/dovecot/src/lib-dict -I/usr/include/dovecot/src/lib-mail -I/usr/include/dovecot/src/lib-auth -I/usr/include/dovecot/src/lib-index -I/usr/include/dovecot/src/lib-storage -DMODULEDIR=\""/usr/lib64/dovecot"\" -I../../src/lib-managesieve -I../../src/lib-sievestorage -I/work/dovecot-1.2-sieve-0.1.14 -I/work/dovecot-1.2-sieve-0.1.14/src/lib-sieve -std=gnu99 -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -Wstrict-aliasing=2 -I/usr/kerberos/include -MT main.o -MD -MP -MF .deps/main.Tpo -c -o main.o main.c mv -f .deps/main.Tpo .deps/main.Po make[3]: *** No rule to make target `/usr/include/dovecot/src/lib-storage/libstorage.a', needed by `managesieve'. Stop. make[3]: Leaving directory `/work/dovecot-1.2-managesieve-0.11.10/src/managesieve' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/work/dovecot-1.2-managesieve-0.11.10/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/work/dovecot-1.2-managesieve-0.11.10' make: *** [all] Error 2 I probably need a hit with the cluebat here... could someone give me step-by-step instructions or is it a bad idea to use those rpms in the first place or...? Thanks and happy new year! Oli

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[Dovecot] fedora rpm for 2.0 beta?
by joakim＠verona.se 05 Jan '10

05 Jan '10

I'm looking for a spec/rpm file suitable for fedora 11/12, for dovecot and pidgenhole sieve. Has anyone done this yet? Otherwise I will attempt to the dovecot 1.2 spec files for f11. -- Joakim Verona

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[Dovecot] Moving to hardlinks?
by David Abrahams 05 Jan '10

05 Jan '10

I just discovered that dovecot supports copying messages via hard-linking. I have a huge mailbox hierarchy of existing messages that I'd prefer to store that way. Is there a simple way to transform non-hard-linked storage to hard-linked? TIA, -- Dave Abrahams Meet me at BoostCon: http://www.boostcon.com BoostPro Computing http://www.boostpro.com

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[Dovecot] managesieve : unable to authenticate with cram-md5
by Arnaud 05 Jan '10

05 Jan '10

Hi, Seem i switch my dovecot authentification to cram-md5 mecanism, i'am unable to authenticate to managesieve login. log: Dec 16 23:50:16 managesieve-login: Info: Disconnected (disconnected while authenticating): method=CRAM-MD5, rip=192.168.0.100, lip=192.168.0.50 dovecot -n : # 1.2.8: /etc/mailapp/dovecot/dovecot.conf # OS: Linux 2.6.22.8 x86_64 log_path: /var/log/dovecot.log protocols: imaps managesieve listen(default): * listen(imap): * listen(managesieve): *:2000 ssl_listen: *:993 ssl_cert_file: /etc/mailapp/dovecot/certs/dovecot.pem ssl_key_file: /etc/mailapp/dovecot/private/dovecot.pem disable_plaintext_auth: yes login_dir: /usr/local/dovecot/var/run/dovecot/login login_executable(default): /usr/local/dovecot/libexec/dovecot/imap-login login_executable(imap): /usr/local/dovecot/libexec/dovecot/imap-login login_executable(managesieve): /usr/local/dovecot-manage-sieve/libexec/dovecot/managesieve-login login_greeting: Hello, have an account here ? login_process_per_connection: no verbose_proctitle: yes dotlock_use_excl: no fsync_disable: yes mail_executable(default): /usr/local/dovecot/libexec/dovecot/imap mail_executable(imap): /usr/local/dovecot/libexec/dovecot/imap mail_executable(managesieve): /usr/local/dovecot-manage-sieve/libexec/dovecot/managesieve mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(managesieve): mail_plugin_dir(default): /usr/local/dovecot/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/dovecot/lib/dovecot/imap mail_plugin_dir(managesieve): /usr/local/dovecot/lib/dovecot/managesieve managesieve_logout_format(default): bytes=%i/%o managesieve_logout_format(imap): bytes=%i/%o managesieve_logout_format(managesieve): bytes (in=%i:out=%o) lda: postmaster_address: postmaster(a)adlx.net hostname: adlx.net mail_plugin_dir: /usr/local/dovecot/lib/dovecot/lda mail_plugins: sieve quota sendmail_path: /usr/sbin/sendmail auth_socket_path: /var/run/dovecot/auth-master log_path: /var/log/dovecot-deliver-errors.log info_log_path: /var/log/dovecot-deliver-infos.log auth default: mechanisms: cram-md5 passdb: driver: sql args: /etc/mailapp/dovecot/dovecot-sql.conf userdb: driver: sql args: /etc/mailapp/dovecot/dovecot-sql.conf socket: type: listen client: path: /var/run/dovecot/auth-client mode: 438 master: path: /var/run/dovecot/auth-master mode: 384 user: arnaud group: users plugin: quota: maildir:%n quota quota_rule: *:storage=1G sieve_before: /var/imap/before.sieve sieve: /var/imap/%n.sieve sieve_dir: /var/imap/%d/%n/sieve All works fine with plain authentification and managesieve. Perhaps someone have a workaround. I use thunderbird version 2.0.0.23 as MUA. Thanks for reading !

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[Dovecot] architecture to handle 1000 messages per second?
by Bob Eastbrook 04 Jan '10

04 Jan '10

Can anyone describe an architecture which can handle 1000 IMAP or POP messages per second? Ideally, it would be hosted in the cloud and additional instances could be launched to handle additional load. Bob

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[Dovecot] dovecot as lda
by denlistes＠altern.org 04 Jan '10

04 Jan '10

Hi, I would like to integrate dovecot as lda for the hosting control panel alternc (http://www.alternc.org) I manage to run it for the mail but not for the alias. The problem is that in the configuration of alternc, the mails are seen as aliases in the form user_domain.tld. In a second time, a match is made to see if an "real" alias exists. postmap -q test(a)lists.test.net mysql:/etc/postfix/mydomain.cf test-owner_lists.collectifs.net postmap -q test-owner_lists.test.net mysql:/etc/postfix/myalias.cf "| /var/lib/mailman/mail/mailman owner test" With my configuration, this part is no longer working and dovecot can not find the user: test(a)lists.test.net user unknown Any ideas ? Thanks Denis # main.cf virtual_alias_maps = proxy:mysql:/etc/postfix/myalias.cf, hash:/etc/aliases virtual_mailbox_domains = mysql:/etc/postfix/mydomain.cf virtual_mailbox_maps = proxy:mysql:/etc/postfix/myvirtual.cf virtual_transport = dovecot dovecot_destination_recipient_limit = 1 # master.cf dovecot unix - n n - - pipe flags=DRhu user=www-data:www-data argv=/usr/lib/dovecot/deliver -d $(recipient)

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[Dovecot] Kernel warnings
by Thomas Zajic 04 Jan '10

04 Jan '10

Hi, I've been getting these warnings in syslog since I've been running (Linux) kernels 2.6.31.x and up (I'm currently at 2.6.32.2), they do not show up on 2.6.30.x kernels. Dovecot versions involved were/are 1.2.x, I'm currently at 1.2.9. My system is running Slackware 13.0, but this also happened with 12.2. ------------[ cut here ]------------ WARNING: at fs/notify/inotify/inotify_fsnotify.c:129 idr_callback+0x2a/0x4b() Hardware name: To Be Filled By O.E.M. inotify closing but id=0 for entry=f61e3334 in group=f254ce00 still in idr. Probably leaking memory Modules linked in: tcp_diag inet_diag autofs4 nfsd lockd nfs_acl sunrpc exportfs ipv6 w83627hf hwmon_vid hwmon lp fuse parport_pc 8250_pnp rtc_cmos 8250 parport rtc_core serial_core rtc_lib ohci_hcd button thermal processor evdev e1000 psmouse serio_raw i2c_i801 ide_cd_mod sg i2c_core cdrom ehci_hcd Pid: 10837, comm: imap Not tainted 2.6.32.2 #1 Call Trace: [<c1024368>] ? warn_slowpath_common+0x5e/0x8a [<c10243c6>] ? warn_slowpath_fmt+0x26/0x2a [<c10953a0>] ? idr_callback+0x2a/0x4b [<c10ed1c5>] ? idr_for_each+0x5a/0x91 [<c1095376>] ? idr_callback+0x0/0x4b [<c1095367>] ? inotify_free_group_priv+0x12/0x21 [<c1093c81>] ? fsnotify_final_destroy_group+0x16/0x1e [<c10954dc>] ? inotify_release+0x16/0x22 [<c1072f76>] ? __fput+0xc0/0x163 [<c1070a90>] ? filp_close+0x4e/0x54 [<c1070afc>] ? sys_close+0x66/0x9c [<c10028b5>] ? syscall_call+0x7/0xb ---[ end trace a2df6cbeb716721c ]--- entry->group=(null) inode=(null) wd=1024 There are no processes other than dovecot's "imap" that are ever causing these warnings. Does this indicate a problem in the kernel or rather in dovecot? The system appears to run fine except for the warnings, no actual crashes, asserts, core dumps or similar in any of dovecot's components. Mandatory 'dovecot -n' output: [root@airframe]:~# dovecot -n # 1.2.9: /usr/local/etc/dovecot.conf # OS: Linux 2.6.32.2 i686 Slackware 13.0.0.0.0 login_dir: /usr/local/var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login mail_max_userip_connections: 20 verbose_proctitle: yes mail_location: maildir:~/Maildir:INBOX=~/Maildir/.INBOX fsync_disable: yes mail_process_size: 2048 mail_plugins: expire fts fts_squat auth default: mechanisms: plain digest-md5 cram-md5 passdb: driver: passwd-file args: /usr/local/etc/dovecot-passwd userdb: driver: passwd socket: type: listen master: path: /usr/local/var/run/dovecot/auth-master mode: 384 plugin: expire: Trash 7 Junk 1 expire_dict: proxy::expire fts: squat fts_squat: partial=4 full=6 dict: expire: mysql:/usr/local/etc/dovecot-dict-sql-expire.conf [root@airframe]:~# Thanks & A Happy 2010, Thomas

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[Dovecot] imap default separator ignored?
by Harald Dunkel 03 Jan '10

03 Jan '10

Hi folks, I have configured the imap folder separator to '/' (see below). AFAIU the separator character does not affect the internal folder representation managed by Dovecot, but just the communication between client and imap server. Question is: What is supposed to happen if I try to create a folder named "a.b" in this configuration? Since '.' is not a separator character anymore, and since the client doesn't know anything about the internals of Dovecot, I do not see why Dovecot complains about an invalid character? Shouldn't it hide its internal Maildir structure? Regards Harri ====================================================================== # 1.2.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32.2 x86_64 Debian squeeze/sid log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps pop3 pop3s managesieve login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login login_executable(managesieve): /usr/lib/dovecot/managesieve-login mail_privileged_group: mail 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_executable(managesieve): /usr/lib/dovecot/managesieve 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 mail_plugin_dir(managesieve): /usr/lib/dovecot/modules/managesieve namespace: type: private separator: / location: maildir:~/Maildir inbox: yes list: yes subscriptions: yes auth default: passdb: driver: pam userdb: driver: passwd

3 2

[Dovecot] Problems getting the antispam-plugin to work
by Malte Schirmacher 03 Jan '10

03 Jan '10

Hi List, i'm running the current debian lenny dovecot-version (dpkg says it's 1.0.15-2.3+lenny1) and i'm trying to get the antispam-plugin ('1.2+20090702-1~bpo50+3') to work. Unfortunately dovecot always says "antispam plugin not configured" moving spam into the spam-folder. My config: protocol imap { mail_plugins = antispam } plugin { antispam_signature = X-DSPAM-Signature antispam_signature_missing = error antispam_trash = Trash antispam_spam = Spam antispam_dspam_binary = /usr/bin/dspam antispam_dspam_args = --deliver=;--user;%u } Thanks in advance Malte Schirmacher

2 2

[Dovecot] What auth ?
by Spyros Tsiolis 03 Jan '10

03 Jan '10

Hello people, First of all a Happy New Year and best wishes to you all. I've managed to setup dovecot v1.2.9 on a CentOS 5.4 system and I am now, trying to make it auth. I would prefer virtual users and only want to make the IMAP/ IMAPS part work. I don't need POP3 or anything else. The rest will be handled by another SMTP/POP3 application. Now, I almost managed to make dovecot auth a virtual user with his password. However, when it seems it has passed the auth stage (either via IMAP _or_ IMAPS), the command line kicks me out. Here's roughly what I did : 1. Created /etc/dovecot/users and /etc/dovecot/passwd 2. filled in a couple of usernames/passwords encrypted in MD5 format 3. Ran dovecot from command line (service dovecot start [after I created the service ofcourse]) 4. telneted to localhost via port 143 or 993 (with the help of openssl: "openssl s_client -connect the.system.name:993") 5. typed : . login username@fqdn <password> Something worth noticing for step "5". If I do this logging-in with the "user@fqdn" format, the systems kicks me out. I, then, check the latest on "/var/log/dovecot/errors" to find that the system does not complain about the auth. If I do the same logging-in but instead use "user@localhost" (and not the fqdn), the system fails the authentication stage and does _not_ drop me into the shell. Go figure !! Anyway. My question, in essence, is this; Which type of auth should I use ? The manuals (that i've been sinking my head for the last couple of weeks) suggest I should use PAM. PAM, I cannot understand. At the moment, I _think_ I am using MD5. Any pointers here ? I've been reading the /doc/wiki directory for quite some time until it made no sense to me anymore (too much info makes me loose perspective). Any help would be greatly appreciated. TIA, spyros

2 4

[Dovecot] disable lazy_expunge for some mailboxes?
by Frank Cusack 03 Jan '10

03 Jan '10

How to disable lazy_expunge for certain mailboxes? My problem is I have a public namespace, whose mail is on a different filesystem than user mails. Some users are allowed to expunge on this shared mailbox, but lazy_expunge is stopping that from working since the mail has to cross a filesystem boundary to make it into the lazy_expunge namespace (location is under the user's home directory). As a workaround can I run a daily cron job to remove messages with the \Deleted flag on them? If so how do I find them? thanks -frank

2 3

[Dovecot] 1.2.9 -llber
by Frank Cusack 02 Jan '10

02 Jan '10

1.2.9: configure: Added -llber to ldap libs. Fixes linking in some systems. and breaks it on others. Sun Solaris' native ldap library does not have a separate liblber. I normally check for ber_free in libldap, then in liblber, then fail. -frank

2 1

[Dovecot] Recalculate quota usage on demand
by Michael 02 Jan '10

02 Jan '10

I would a method for Dovecot to recalculate the quota usage and rewrite it to the quota DB (Called on demand by a non-Dovecot POP3 daemon) I don't want the line deleted in the DB as this would only recalculate next time the Dovecot LDA or IMAP handles a message, and I want to keep the data availability contiguous. Can this be done?

2 1

[Dovecot] nested folders
by Jim Pazarena 02 Jan '10

02 Jan '10

using both thunderbird and roundcube with dovecot IMAP, I can create all the folders I desire, but cannot create subfolders; I also cannot delete a folder once created. I get a very un-informative error message from each. Is there a special setting required to permit sub-folder creation? folder deletion? I've got 770 mail:mail virtual_user_home 770 mail:mail mail_sub-directory 770 mail:mail .imap 660 mail:mail .subscriptions 700 mail:mail Drafts 700 mail:mail INBOX 700 mail:mail Junk 700 mail:mail Sent 700 mail:mail Trash Suggestions would be appreciated. Thanks!

3 2

[Dovecot] Using Push IMAP to trigger POP3 download
by Aaron Whitehouse 02 Jan '10

02 Jan '10

Hello all, I have an HTPC connected 24/7 to the Internet running Mythbuntu. I also have a web/email host that runs Dovecot for email and provides IMAP and POP3 access. I understand that Dovecot supports Push IMAP and I could, for example, use Thunderbird to connect to my email host to receive instant email as it arrives. I would like to add a Dovecot IMAP server on my HTPC (for increased storage, to aggregate multiple email accounts, to process messages with SpamAssassin and to provide a better webmail interface) and retrieve email from my webhost to my HTPC by POP3. To set up POP3 on my HTPC, I understand that the norm is to set a time interval (say, every 10 minutes) for clearing email. What I would prefer to do, if possible, would be to have Dovecot on my HTPC keep a Push IMAP connection with Dovecot on my webhost. When a new message is available on the webhost, my HTPC would be "pushed" a notification and it could do a POP3 download. This would allow it to clear emails with POP3 (and reduce storage requirements on my webhost), mean that I received emails instantly and not require me to have it poll for messages on a very-regular basis. Does anybody know if this is possible? As an alternative (not solving my space problem on the webhost, but solving the others), is it possible to set up Dovecot to "piggy back" off an existing IMAP server? In my example, my webhost does not offer good spam-checking and webmail. Would it be possible for me to set up a Dovecot server on my HTPC that received messages by Push IMAP, processed them with SpamAssassin (say, moving all of the spam messages to a subfolder) and provided a good web interface, all the while providing updates to the webhost's server? In some ways, this is almost more like an IMAP client than a server. I apologise if these questions are stupid! Happy New Year and thanks in advance, Aaron -- FSF Associate Member: 5632 http://www.fsf.org

2 1

[Dovecot] Deliver virtual user's mail to a specific namespace?
by Brian Schang 02 Jan '10

02 Jan '10

Hello: I have virtual users set up for the various mailing lists that I subscribe to. Everything has been working well in both Postfix and Dovecot. Postfix is configured to deliver to a specific mbox file within my mbox mail root. I can access retrieve and read email via Dovecot without any issues. Now I want to make my setup more robust and have these messages delivered to a maildir namespace. I have configured the LDA within the Postfix master.cf file: dovecot unix - n n - - pipe flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -f ${sender} -d ${recipient} I have configured the 'dovecot' transport within Postfix in the transport file: test(a)lists.schang.net dovecot: In dovecot.conf I have set up the namespace as follows: namespace private { separator = / prefix = "Lists/" location = maildir:~/MailLists subscriptions = yes } I'm having a hard time specifying the "Lists/" namespace in my userdb passwd-file: test:{PLAIN}linux:2000:200::/home/brian::userdb_mail=maildir:Lists/test I can't get the userdb_mail portion to work. For this user, 'test(a)lists.schang.net', how do I tell Dovecot/deliver to put the message in the 'test' mailbox within the 'Lists/' namespace? I'd appreciate any insight. Thank you. -- Brian Schang

2 2

[Dovecot] Issue Authenticating to a new dovecot-postfix installation
by Anthony Nedland 02 Jan '10

02 Jan '10

(Apologies if this is a resend, but I thought I had received a bounceback message.) I have installed dovecot-postfix and postfixadmin on an Ubuntu 9.10 machine. The userdb and passdb are both mysql. If I set up a user in postfixadmin they are able to send. I can successfully telnet into the server remotely by name on 110 and 25. I'm not looking for any authentication encryption/ssl any of that, just POP3/SMTP. When I telnet into 110 I can enter a username with user [username] then when I do pass [password] I get -ERR Authentication failed. I know the user info is correct. When I set up an account in Outlook Express I get "There was a problem logging onto your mail server. Your Password was rejected:" Also saying -ERR Authentication failed.'. (0x800ccc90,0x800ccc92) So basically the same thing. I can attach the tutorial I used in as a .doc if that would help. Anyway, here is my relevant info I think. -- -- -- Version 1.1.11 -------------------------------------------------------------- ---------------------------------------------------------------- ----------------------------------------------------------------- dovecot-sql.conf GREP driver = mysql connect = host=localhost dbname=postfix user=postfix password=password default_pass_scheme = PLAIN user_query = SELECT '/var/vmail/%d/%n' as home, 'maildir:/var/vmail/%d/%n' as mail, 150 AS uis, 8 AS gid, concat(dirsize:storage=',quota) AS quota FROM mailbox WHERE username = '%u' AND active = 1 password_query = SELECT username as user, password, '/var/vmail/%d/%n' as userdb_home,'maildir:/var/vmail/%d/%n' as userdb_mail, 150 as userdb_uid, 8 as userdb_gid FROM mailbox WHERE username = '%u' AND active = 1 -------------------------------------------------------------- ------------------------------------------------------------- ------------------------------------------------------------- root@mail:/etc/dovecot# dovecot -n # 1.1.11: /etc/dovecot/dovecot.conf Error: Error in configuration file /etc/dovecot/dovecot.conf line 1076: Unknown section type (section changed in /etc/dovecot/dovecot.conf at line 1038) Fatal: Invalid configuration in /etc/dovecot/dovecot.conf Starting line 1076---> master { # Master socket provides access to userdb information. It's typically # used to give Dovecot's local delivery agent access to userdb so it # can find mailbox locations. path = /var/run/dovecot/auth-master mode = 0660 # Default user/group is the one who started dovecot-auth (root) user = vmail group = mail } # SQL database <doc/wiki/AuthDatabase.SQL.txt> userdb sql { # Path for SQL configuration file args = /etc/dovecot/dovecot-sql.conf Line 138 --> } I don't understand the issue with these lines. They refer to dovecot.conf though. The config file is clearly dovecot-postfix.conf so I am confused as to why the other matters. I had noticed changes only when I changed dovecot.conf though. (In dovecot -n output)

6 22

[Dovecot] Dovecot LDA with SetUID
by Michael 02 Jan '10

02 Jan '10

Has anyone been able to get Dovecot LDA working where each user has a different UID? All the howtos on the Internet I have found set the UID of a mailbox as fixed for all users. However I have tried to run it on the current SQL database we have (with different UID per user) and I get the following: Jan 1 16:25:40 HOST dovecot: deliver(EMAIL): Fatal: setgid(1000(stdusers)) failed with euid=8(mail), gid=12(mail), egid=12(mail): Operation not permitted I am calling this from Postfix with: dovecot unix - n n - - pipe flags=DRhu user=mail:mail argv=/usr/local/libexec/dovecot/deliver -f ${sender} -d ${recipient}

2 1

[Dovecot] Dovecot deliver and IMAP - separate user db queries possible?
by Michael 02 Jan '10

02 Jan '10

How can I get deliver LDA and IMAP to use separate user DB SQL queries?

2 1

[Dovecot] Quota with Dict + SQL not updating
by Michael 01 Jan '10

01 Jan '10

Hello all, I have a Dovecot server deployed with a MySQL back end. If the user logs in and there is no quota set for them in table 'quota', the system will automatically inset a line with their username and current messages/storage. However after this it fails to update the information when to reflect new messages coming to their inbox after the original insert of the information. It will only update the information when a user deletes a message. Why is it not updating this information every time their mail is checked with IMAP? Cheers, Michael

2 2

[Dovecot] Oracle SQL driver
by Alexander Bukharov 31 Dec '09

31 Dec '09

Hi all. Recently I was looking for an IMAP-server with Oracle support and unfortunatelly I couldn't find one. It was a surprise for me but there is no such functionality at all. So I've chosen an IMAP-server with most flexible and convinient architecture that was Dovecot-1.2.9 and written a driver for Oracle RDBMS support. I used Oracle Pro*C so a Pro*C preprocessor is needed to compile the driver. There is a lot of logging there that should be removed. It would be great if you consider to include this driver to mainstream so Dovecot will be the first IMAP server supporting Oracle as auth backend. All related files are attached. Cheers.

2 2

[Dovecot] A Dovecot Sieve spam filter question.
by aja-lists＠tni.org 31 Dec '09

31 Dec '09

Hi, I'd like to make a filtering threshold for users to let them deal with spamassassin spam-level starred < 8 themselves, but spam-level starred higher than 8 should be discarded how can one do that with the "anyof" option ? the following doesn't work with a test email with "gtube", which scores > 999 : # require "fileinto"; if header :matches "X-Spam-Level" "\*\*\*\*\*\*" { fileinto "discard"; } and I think it would be nice to have not so many lines in the globalsieverc file. TIA, Regards, Adrian

5 11

[Dovecot] configure optimization
by Luigi Rosa 31 Dec '09

31 Dec '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Given a server with MySQL userdb/passwd and maildir storage, excluding unused storages and authentications in configure options does save some memory and/or speed or is it worthless? I mean, is there a performance difference between this two versions of configure parameters or is just a waste of time to exclude what is not used? ./configure --with-mysql --without-ssl --sysconfdir=/etc --localstatedir=/var ./configure --with-mysql --without-ssl --with-storages=maildir - --sysconfdir=/etc --localstatedir=/var --without-passwd --without-nss - --without-passwd-file --without-shadow --without-pam --without-ssl Thank you. Ciao, luigi - -- / +--[Luigi Rosa]-- \ I told the doctor I broke my leg in two places. He told me to quit going to those places. --Henny Youngman -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAks7YWkACgkQ3kWu7Tfl6ZReewCgw97USlBGkggJre49cGp/cgsd M/sAniVsEOISC2YKKXbivTKN//JwnZhs =GEk+ -----END PGP SIGNATURE-----

2 2

[Dovecot] Pigeonhole Sieve IMAP flag question
by Julian Cowley 31 Dec '09

31 Dec '09

Hello, Here is a small script that I've been running to test a problem I've been seeing. Shouldn't this result in the mail being delivered to the inbox as a new message (ie. without the \Seen flag)? require "imap4flags"; addflag "\\Seen"; removeflag "\\Seen"; Every message gets delivered to the inbox as though it's already been read. Using Dovecot 1.2.9 and Pigeonhole Sieve 0.1.14.

3 4

[Dovecot] Hostname setting defaults
by Timo Sirainen 30 Dec '09

30 Dec '09

Any thoughts about the following? hostname setting currently defaults to system's host name, without the domain part. It's used (in v2.0): - dovecot-lda (new deliver): If -a parameter isn't specified and there's no Envelope-To: header, the destination address is generated as <username>@<hostname setting> - lda/lmtp: In generated Message-Id: headers ("dovecot-stuff@<hostname>") for rejects, vacation, etc. - lda/lmtp: in reject messages as part of MIME boundary, and also in "Reporting-UA: <hostname>; Dovecot mail delivery agent" header. - lmtp: In the protocol, e.g. "220 <hostname> Dovecot ready" or "421 4.4.2 <hostname> Disconnected for inactivity" - lmtp: In added Received: header Seems pretty clear to me that it should be host.domain.org, not just host. So I suppose I'll change that default. The other thing is postmaster_address. That's accidentally been postmaster(a)example.com in dovecot-example.conf and uncommented. So who knows how many installations have their postmaster address set to that.. I'm thinking of just commenting it out in next v1.2 release so admins needs to change that. But for v2.0 maybe there could be a good default for postmaster_address? "postmaster@<hostname setting>" I think? Because it's postmaster(a)host.domain.org instead of postmaster(a)domain.org, it might not be correct in most installations, but I'm thinking that maybe it's safer. Someone trying out Dovecot on testbox.biguni.edu probably doesn't want bounces going to postmaster(a)biguni.edu..

1 0

[Dovecot] dovecot-shared
by Frank Cusack 30 Dec '09

30 Dec '09

I'm confused about dovecot-shared. If the file exists, \SEEN flags are NOT shared? So if dovecot-shared exists, flags are actually private. The doc seems clear on this (albeit not worded very well). I only question it because intuitively you would think the opposite. If backwards compatibility is the reason for this reverse behavior, the file should have been named dovecot-private-flags. In fact that's a great name to stick a list of flags (one-per-line) that are private. -frnak

2 6

[Dovecot] Issue Authenticating to a new dovecot-postfix installation
by Anthony Nedland 30 Dec '09

30 Dec '09

I have installed dovecot-postfix and postfixadmin on an Ubuntu 9.10 machine. The userdb and passdb are both mysql. If I set up a user in postfixadmin they are able to send. I can successfully telnet into the server remotely by name on 110 and 25. I'm not looking for any authentication encryption/ssl any of that, just POP3/SMTP. When I telnet into 110 I can enter a username with user [username] then when I do pass [password] I get -ERR Authentication failed. I know the user info is correct. When I set up an account in Outlook Express I get "There was a problem logging onto your mail server. Your Password was rejected:" Also saying -ERR Authentication failed.'. (0x800ccc90,0x800ccc92) So basically the same thing. I can attach the tutorial I used in as a .doc if that would help. Anyway, here is my relevant info I think. -- -- -- Version 1.1.11 -------------------------------------------------------------- ---------------------------------------------------------------- ----------------------------------------------------------------- dovecot-sql.conf GREP driver = mysql connect = host=localhost dbname=postfix user=postfix password=password default_pass_scheme = PLAIN user_query = SELECT '/var/vmail/%d/%n' as home, 'maildir:/var/vmail/%d/%n' as mail, 150 AS uis, 8 AS gid, concat(dirsize:storage=',quota) AS quota FROM mailbox WHERE username = '%u' AND active = 1 password_query = SELECT username as user, password, '/var/vmail/%d/%n' as userdb_home,'maildir:/var/vmail/%d/%n' as userdb_mail, 150 as userdb_uid, 8 as userdb_gid FROM mailbox WHERE username = '%u' AND active = 1 -------------------------------------------------------------- ------------------------------------------------------------- ------------------------------------------------------------- root@mail:/etc/dovecot# dovecot -n # 1.1.11: /etc/dovecot/dovecot.conf Error: Error in configuration file /etc/dovecot/dovecot.conf line 1076: Unknown section type (section changed in /etc/dovecot/dovecot.conf at line 1038) Fatal: Invalid configuration in /etc/dovecot/dovecot.conf Starting line 1076---> master { # Master socket provides access to userdb information. It's typically # used to give Dovecot's local delivery agent access to userdb so it # can find mailbox locations. path = /var/run/dovecot/auth-master mode = 0660 # Default user/group is the one who started dovecot-auth (root) user = vmail group = mail } # SQL database <doc/wiki/AuthDatabase.SQL.txt> userdb sql { # Path for SQL configuration file args = /etc/dovecot/dovecot-sql.conf Line 138 --> } I don't understand the issue with these lines. They refer to dovecot.conf though. The config file is clearly dovecot-postfix.conf so I am confused as to why the other matters. I had noticed changes only when I changed dovecot.conf though. (In dovecot -n output) --

1 0

Re: [Dovecot] Retrieve Physical Message Filename
by Tony Rutherford 30 Dec '09

30 Dec '09

Thanks for the reply. I won't be changing any files, or even accessing them, i'll simply be passing the filename along to "another system". I'm not allowed to change this other system or any of its interfaces. The other system has been in place and is "off limits" as far as changes go (I'm told). To make it simple, this other system needs to be notified of any flag changes on emails. So, when we detect a flag change (in our plugin), we need to pass the message filename along to this other system. I hope this makes sense...and again...i'm not justifying the need for it, but I have to play the hand i'm dealt....Tony RutherfordSoftware EngineerBlueTie Inc.arutherford(a)bluetie.com(585) 586-2000 x1040-----Original Message-----From: "Timo Sirainen" [tss(a)iki.fi]Date: 12/29/2009 04:02 PMTo: "Tony Rutherford" CC: dovecot(a)dovecot.orgSubject: Re: [Dovecot] Retrieve Physical Message FilenameOn Tue, 2009-12-29 at 15:50 -0500, Tony Rutherford wrote: > Hi,Using Dovecot 1.2.9 with Maildir and Layout=FS.In a plugin, i'm > overriding "update_flags":void my_mail_update_flags(struct mail > *_mail, enum modify_type modify_type, enum mail_flags flags)For this > email which is having its flags updated, I need to retrieve the > physical filename of the message. I see where > using:mail_get_special(_mail, MAIL_FETCH_UIDL_FILE_NAME, &fname);...I > can retrieve part of the filename, but without the ":2" and the flags > part.Is there a method I can use to get the whole filename (without > having to reassemble it myself). I've looked around, and I'm guessing > it exists, but I don't see it offhand. The problem is that by the time you're trying to access the file, its flags may have already changed, which also means its filename could have changed. So even if you got it, your code would probably randomly fail. What exactly are you going to do with the filename? Maybe you should instead be opening the file with mail_get_stream() and doing something with the fd. This message is intended solely for the individual(s) to whom it is addressed. If you are not the intended recipient, any dissemination or copying is strictly prohibited. If you believe you received this message in error, please notify the sender and delete from your system. Thank you.

3 2

[Dovecot] Using Dovecot deliver with Postfix
by Tobias Lang 30 Dec '09

30 Dec '09

Hello, while installing Dovecot sieve, I am not able to deliver email for root. The strange thing is, that mails to ordinary users get delivered. And no, I do not use virtual mail, just ordinary unix accounts with an entry to passwd / shadow. Also before switching from Postfix deliver to Dovecot deliver, everything worked fine. Current versions for dovecot and postfix are: dovecot-1.2.8 postfix-2.6.5 Anybody an idea, where I misconfigured something? Thanks in advance Tobi dovecot.log (Dovecot daemon) ------------------------------------------------------------------------------------------------------------------------------------- Dec 25 13:15:01 deliver(root): Error: chdir(/root) failed: Permission denied Dec 25 13:15:01 deliver(root): Error: stat(/root/Maildir) failed: Permission denied Dec 25 13:15:01 deliver(root): Error: stat(/root/Maildir/tmp) failed: Permission denied (euid=65534(nobody) egid=65533(nobody) missing +x perm: /root) ------------------------------------------------------------------------------------------------------------------------------------- mail.log (Postfix daemon) ------------------------------------------------------------------------------------------------------------------------------------- Dec 25 13:15:01 h636004 postfix/pickup[9007]: ABD64208163: uid=0 from=<root> Dec 25 13:15:01 h636004 postfix/cleanup[9073]: ABD64208163: message-id=<20091225121501.ABD64208163(a)DOMAIN.net> Dec 25 13:15:01 h636004 postfix/qmgr[9006]: ABD64208163: from=<root(a)DOMAIN.net>, size=629, nrcpt=1 (queue active) Dec 25 13:15:01 h636004 postfix/local[9075]: ABD64208163: to=<tobi(a)DOMAIN.net>, orig_to=<root>, relay=local, delay=0.26, delays=0.14/0.01/0/0.12, dsn=2.0.0, status=sent (delivered to command: /usr/local/libexec/dovecot/deliver) Dec 25 13:15:01 h636004 postfix/local[9075]: ABD64208163: to=<root(a)DOMAIN.net>, orig_to=<root>, relay=local, delay=0.36, delays=0.14/0.01/0/0.21, dsn=4.3.0, status=deferred (temporary failure) ------------------------------------------------------------------------------------------------------------------------------------- Here is an excerpt from my dovecot.conf: dovecot.conf: ------------------------------------------------------------------------------------------------------------------------------------- protocol lda { postmaster_address = postmaster@DOMAIN #mail_plugins = sieve # Disabled to fix deliver issue } mail_location = maildir:%h/Maildir auth default { mechanisms = plain login passdb pam { args = * } userdb passwd { } socket listen { master { path = /var/run/dovecot/auth-master mode = 0600 } client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } } } -------------------------------------------------------------------------------------------------------------------------------------

2 2

[Dovecot] 1.2.9 imap crash with backtrace
by Ralf Hildebrandt 30 Dec '09

30 Dec '09

I got about 20 (!) of these today GNU gdb (GDB) 7.0-debian Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/local/libexec/dovecot/imap...done. Reading symbols from /lib/i686/cmov/libdl.so.2...Reading symbols from /usr/lib/debug/lib/i686/cmov/libdl-2.10.2.so...done. (no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libdl.so.2 Reading symbols from /lib/i686/cmov/librt.so.1...Reading symbols from /usr/lib/debug/lib/i686/cmov/librt-2.10.2.so...done. (no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/librt.so.1 Reading symbols from /lib/i686/cmov/libc.so.6...Reading symbols from /usr/lib/debug/lib/i686/cmov/libc-2.10.2.so...done. (no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libc.so.6 Reading symbols from /lib/ld-linux.so.2...Reading symbols from /usr/lib/debug/lib/ld-2.10.2.so...done. (no debugging symbols found)...done. Loaded symbols for /lib/ld-linux.so.2 Reading symbols from /lib/i686/cmov/libpthread.so.0...Reading symbols from /usr/lib/debug/lib/i686/cmov/libpthread-2.10.2.so...done. (no debugging symbols found)...done. Loaded symbols for /lib/i686/cmov/libpthread.so.0 Reading symbols from /usr/local/lib/dovecot/imap/lib10_quota_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib10_quota_plugin.so Reading symbols from /usr/local/lib/dovecot/imap/lib11_imap_quota_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib11_imap_quota_plugin.so Reading symbols from /usr/local/lib/dovecot/imap/lib11_trash_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib11_trash_plugin.so Reading symbols from /usr/local/lib/dovecot/imap/lib20_autocreate_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib20_autocreate_plugin.so Reading symbols from /usr/local/lib/dovecot/imap/lib20_fts_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib20_fts_plugin.so Reading symbols from /usr/local/lib/dovecot/imap/lib20_mail_log_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib20_mail_log_plugin.so Reading symbols from /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libz.so.1 Reading symbols from /lib/libbz2.so.1.0...(no debugging symbols found)...done. Loaded symbols for /lib/libbz2.so.1.0 Reading symbols from /usr/local/lib/dovecot/imap/lib21_fts_squat_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib21_fts_squat_plugin.so Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/libgcc_s.so.1 Core was generated by `imap [ctXXXX 141.42.26.107]'. Program terminated with signal 6, Aborted. #0 0xb78aa424 in __kernel_vsyscall () #0 0xb78aa424 in __kernel_vsyscall () No symbol table info available. #1 0xb77728e0 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 resultvar = <value optimized out> pid = -1215778828 selftid = 32050 #2 0xb7775e15 in *__GI_abort () at abort.c:88 act = {__sigaction_handler = {sa_handler = 0x9bb5848, sa_sigaction = 0x9bb5848}, sa_mask = {__val = {3214234984, 135196938, 3079186144, 0, 3214235104, 3214235092, 128, 0, 0, 3214235168, 3079439984, 134566866, 515, 0, 0, 0, 1, 135270254, 128, 1, 3214235092, 163272744, 69, 3214235220, 3214235064, 135198534, 163273291, 3214235092, 3214235096, 516, 163272776, 3078652995}}, sa_flags = 516, sa_restorer = 0x8106d79 <write_full+57>} sigs = {__val = {32, 0 <repeats 31 times>}} #3 0x080f15e5 in default_fatal_finish (type=<value optimized out>, status=0) at failures.c:160 backtrace = 0x9bb5618 "imap [0x80f15d1] -> imap [0x80f1642] -> imap [0x80f0fb9] -> imap [0x8063360] -> imap [0x80635b4] -> imap(cmd_list_full+0x50c) [0x806436c] -> imap(cmd_list+0x19) [0x8064669] -> imap [0x8067a2c] -> imap"... #4 0x080f1642 in i_internal_fatal_handler (type=LOG_TYPE_PANIC, status=0, fmt=0x8109dcc "file %s: line %d (%s): assertion failed: (%s)", args=0xbf9556b4 "}\245\020\b\362") at failures.c:443 No locals. #5 0x080f0fb9 in i_panic ( format=0x8109dcc "file %s: line %d (%s): assertion failed: (%s)") at failures.c:207 No locals. #6 0x08063360 in ns_get_listed_prefix (ctx=0x9bbfec8, have_children=true) at cmd-list.c:242 glob = 0x9bb55d0 match = IMAP_MATCH_NO __PRETTY_FUNCTION__ = "ns_get_listed_prefix" #7 list_namespace_send_prefix (ctx=0x9bbfec8, have_children=true) at cmd-list.c:266 i = <value optimized out> flags = <value optimized out> name = 0x9bbf480 "INBOX." str = <value optimized out> ends_with_sep = <value optimized out> #8 0x080635b4 in list_namespace_mailboxes (cmd=0x9bbfe30) at cmd-list.c:375 info = <value optimized out> flags = 1073741828 str = 0x9bb5358 ret = 0 ns = 0xbf9557b8 name = 0x9bc52c0 "INBOX" #9 cmd_list_continue (cmd=0x9bbfe30) at cmd-list.c:762 _data_stack_cur_id = 4 ctx = 0x9bbfec8 #10 0x0806436c in cmd_list_full (cmd=0x9bbfe30, lsub=false) at cmd-list.c:933 client = 0x9bbfba0 args = 0x9bc26d0 arg = <value optimized out> ctx = 0x9bbfec8 patterns = {arr = {buffer = 0x9bbfef0, element_size = 4}, v = 0x9bbfef0, v_modifiable = 0x9bbfef0} pattern = 0x9bc2738 "inbox" #11 0x08064669 in cmd_list (cmd=0x9bbfe30) at cmd-list.c:948 No locals. #12 0x08067a2c in client_command_input (cmd=0x9bbfe30) at client.c:612 client = 0x9bbfba0 command = <value optimized out> __PRETTY_FUNCTION__ = "client_command_input" #13 0x08067ad3 in client_command_input (cmd=0x9bbfe30) at client.c:661 client = 0x9bbfba0 command = <value optimized out> __PRETTY_FUNCTION__ = "client_command_input" #14 0x08067c2d in client_handle_next_command (client=0x9bbfba0) at client.c:702 No locals. #15 client_handle_input (client=0x9bbfba0) at client.c:714 _data_stack_cur_id = 3 ret = false remove_io = <value optimized out> handled_commands = false __PRETTY_FUNCTION__ = "client_handle_input" #16 0x0806856f in client_input (client=0x9bbfba0) at client.c:753 cmd = <value optimized out> output = 0x9bbfd54 bytes = <value optimized out> __PRETTY_FUNCTION__ = "client_input" #17 0x080fa220 in io_loop_handler_run (ioloop=0x9bbd9b0) at ioloop-epoll.c:208 ctx = 0x9bbdab8 event = 0x9bbdaf8 list = 0x9bbfdd8 io = 0x9bbfdb0 tv = {tv_sec = 1799, tv_usec = 999149} t_id = 2 msecs = <value optimized out> ret = 1 i = 0 j = 0 call = <value optimized out> #18 0x080f9690 in io_loop_run (ioloop=0x9bbd9b0) at ioloop.c:335 No locals. #19 0x08070ef2 in main (argc=) at main.c:327 No locals. $1 = {prev = 0x0, next = 0x0, client = 0x9bbfba0, pool = 0x9bbfe18, tag = 0x9bbfea8 "sr6y", name = 0x9bbfeb0 "LIST", args = 0x9bbfeb8 "\"\" \"inbox\"", cmd_flags = 0, func = 0x8064650 <cmd_list>, context = 0x9bbfec8, module_contexts = {arr = { buffer = 0x9bbfe70, element_size = 4}, v = 0x9bbfe70, v_modifiable = 0x9bbfe70}, parser = 0x9bc2620, state = CLIENT_COMMAND_STATE_WAIT_INPUT, sync = 0x0, uid = 0, cancel = 0, param_error = 0, search_save_result = 0, temp_executed = 0} (gdb) quit ----- End forwarded message ----- -- 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 2

[Dovecot] Question about log entries
by Cliff Hayes 30 Dec '09

30 Dec '09

Hello, What does this information mean and how is it relevant? I cannot find documentation other than a brief description in dovecot.conf: %t - number of TOP commands %p - number of bytes sent to client as a result of TOP command %r - number of RETR commands %b - number of bytes sent to client as a result of RETR command Thanks in advance, Cliff

4 3

[Dovecot] Mail storage creation fails with virtual users
by Scott H. W. Snyder 30 Dec '09

30 Dec '09

So I have recently set up dovecot with a virtual users dovecot.passdb file, but when I attempt to telnet in, it fails because my virtual users don't have proper permissions to create mailboxes. I don't want to have to create actual users for each email account. Any idea as to what to do? The error that dovecot logs: dovecot: Dec 28 13:06:28 Error: IMAP(user1): mkdir_parents(/var/mail/ folders/user1) failed: Permission denied dovecot: Dec 28 13:06:28 Error: IMAP(user1): Mail storage creation failed with mail_location: mbox:/var/mail/folders/user1/:INBOX=/var/ mail/user1 dovecot: Dec 28 13:06:28 Error: child 27667 (imap) returned error 89 my [test] passdb file: user1:{PLAIN}pass1:2001:2001:User 1 Name:/var/mail/folders/user1:: mail_plugins=cmusieve user2:{PLAIN}pass2:2002:2002:User 2 Name:/var/mail/folders/user2:: mail_plugins=cmusieve user3:{PLAIN}pass3:2003:2003:User 3 Name:/var/mail/folders/user3:: mail_plugins=cmusieve user4:{PLAIN}pass4:2004:2004:User 4 Name:/var/mail/folders/user4:: mail_plugins=cmusieve Conf settings: -bash-3.2# /usr/local/sbin/dovecot -n # 1.0.13: /usr/local/etc/dovecot.conf base_dir: /usr/local/var/run/ log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot.info.log protocols: imap listen: *:143 ssl_disable: yes disable_plaintext_auth: no login_dir: /usr/local/var/run//login login_executable: /usr/local/libexec/dovecot/imap-login login_greeting: Hi buddy, have an account ? max_mail_processes: 2048 verbose_proctitle: yes first_valid_uid: 1000 last_valid_uid: 5000 mail_location: mbox:/var/mail/folders/%u/:INBOX=/var/mail/%u mail_debug: yes mbox_read_locks: dotlock fcntl auth default: verbose: yes debug: yes debug_passwords: yes passdb: driver: passwd-file args: /usr/local/etc/dovecot.passdb userdb: driver: passwd-file args: /usr/local/etc/dovecot.passdb socket: type: listen master: path: /usr/local/var/run/dovecot-auth-master mode: 432 user: dovecot group: mail

2 5

[Dovecot] Problem with dovecot and PAM
by Joss Red 30 Dec '09

30 Dec '09

Hi, I keep having errors when I try to authenticate to my imap acount, and I can't get my email like this. Here are the logs when i try to authenticate using PLAIN or CRAM-MD5 : PLAIN Dec 24 22:06:25 domain dovecot: auth(default2): client in: AUTH^I1^IPLAIN^Iservice=IMAP^Isecured^Ilip=1.2.3.4^Irip=1.2.3.4^Iresp=<hidden> Dec 24 22:06:27 domain dovecot: auth(default2): pam(email(a)domain.com,1.2.3.4): pam_authenticate() failed: User not known to the underlying authentication module Dec 24 22:06:27 domain dovecot: auth(default2): client out: FAIL^I1^Iuser=email(a)domain.com Dec 24 22:06:27 domain dovecot: imap-login: Disconnected: user=<email(a)domain.com>, method=PLAIN, rip=1.2.3.4, lip=1.2.3.4, TLS CRAM-MD5 Dec 24 22:13:17 domain dovecot: auth(default): client in: AUTH^I1^ICRAM-MD5^Iservice=IMAP^Isecured^Ilip=1.2.3.4^Irip=1.2.3.4 Dec 24 22:13:17 domain dovecot: auth(default): client out: CONT^I1^IPDAxNDgyOTE1OTk5OTE0NTEuMTI2MTY4OTE5N0BzZC0xMjE5Mj4= Dec 24 22:13:17 domain dovecot: auth(default): client in: CONT<hidden> Dec 24 22:13:17 domain dovecot: auth-worker(default): sql(email(a)domain.com,1.2.3.4): query: SELECT email as user, password FROM view_users WHERE email='email(a)domain.com'; Dec 24 22:13:17 domain dovecot: auth-worker(default): password(email(a)domain.com,1.2.3.4): Requested HMAC-MD5 scheme, but we have only PLAIN-MD5 Dec 24 22:13:18 domain dovecot: auth(default): client out: FAIL^I1^Iuser=email(a)domain.com Dec 24 22:13:18 domain dovecot: imap-login: Disconnected: user=<email(a)domain.com>, method=CRAM-MD5, rip=1.2.3.4, lip=1.2.3.4, TLS Please Help me :)

2 1

[Dovecot] Upgrade 1.0->1.2 dbox mysql
by Bradley Giesbrecht 29 Dec '09

29 Dec '09

Hi, I just upgraded to from dovecot v1.1.15 to v1.2.9 so I can use dovecot- sieve. Most everything seems to work but my webmail (roundcube) clients are not seeing their subscribed folders. Reading over the upgrade docs at http://wiki.dovecot.org/Upgrading/1.2 I'm wondering if I have the two settings below configured correctly. dovecot.conf: mail_location = dbox:/opt/local/var/mail/%d/%n/dbox dovecot_mysql.conf user_query homedir result: /opt/local/var/mail/example.com/foo bash-3.2# dovecot -n # 1.2.9: /opt/local/etc/dovecot/dovecot.conf # OS: Darwin 9.8.0 Power Macintosh hfs log_path: /opt/local/var/serveza/log/mail/dovecot.log protocols: imap imaps pop3 pop3s disable_plaintext_auth: no verbose_ssl: yes login_dir: /opt/local/var/run/dovecot/login login_executable(default): /opt/local/libexec/dovecot/imap-login login_executable(imap): /opt/local/libexec/dovecot/imap-login login_executable(pop3): /opt/local/libexec/dovecot/pop3-login login_greeting: now what? mail_location: dbox:/opt/local/var/serveza/mail/%d/%n/dbox mail_debug: yes mail_executable(default): /opt/local/etc/dovecot/bin/log_imap_login.sh mail_executable(imap): /opt/local/etc/dovecot/bin/log_imap_login.sh mail_executable(pop3): /opt/local/etc/dovecot/bin/log_pop3_login.sh mail_plugin_dir(default): /opt/local/lib/dovecot/imap mail_plugin_dir(imap): /opt/local/lib/dovecot/imap mail_plugin_dir(pop3): /opt/local/lib/dovecot/pop3 lda: log_path: /opt/local/var/serveza/log/mail/dovecot-deliver.log auth_socket_path: /opt/local/var/run/dovecot/auth-master postmaster_address: postmaster(a)pixilla.com auth default: mechanisms: plain login cram-md5 ntlm apop verbose: yes debug: yes debug_passwords: yes passdb: driver: sql args: /opt/local/etc/dovecot/dovecot_mysql.conf userdb: driver: prefetch userdb: driver: sql args: /opt/local/etc/dovecot/dovecot_mysql.conf socket: type: listen client: path: /opt/local/var/spool/postfix/private/auth mode: 432 user: _postfix group: _postfix master: path: /opt/local/var/run/dovecot/auth-master mode: 384 user: _vmail Thanks for any clues, Bradley Giesbrecht

3 3

[Dovecot] Install fails when libdir and libexecdir are the same directory
by River Tarnell 29 Dec '09

29 Dec '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I'm using Dovecot 1.2.9. I configured it like this: % ./configure --prefix=/opt/rt --libdir=/opt/rt/lib \ --libexecdir=/opt/rt/lib [other args...] It compiled fine, but failed to install, because it tries to install a directory called <libdir>/dovecot/imap, and a file called <libexecdir>/dovecat/imap, which obviously doesn't work when libdir and libexecdir are the same directory: gmake[5]: Entering directory `/home/river/hp-pkg/mail/dovecot/work/dovecot-1.2.9/src/plugins/imap-acl' gmake[5]: Nothing to be done for `install-exec-am'. test -z "/opt/rt/lib/dovecot/imap" || /opt/rt/bin/gmkdir -p "/home/river/hp-pkg/mail/dovecot/install/opt/rt/lib/dovecot/imap" /opt/rt/bin/gmkdir: cannot create directory `/home/river/hp-pkg/mail/dovecot/install/opt/rt/lib/dovecot/imap': File exists gmake[5]: *** [install-imap_moduleLTLIBRARIES] Error 1 As a workaround I used --libexecdir=/opt/rt/lib/dovecot/libexec, but perhaps one of the conflicting files could be moved or renamed. (On System Vish platforms, e.g. Solaris and HP-UX, 'libexec' isn't used -- files that other systems put into 'libexec' go into 'lib'.) - river. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (HP-UX) iEYEARECAAYFAks6OpgACgkQIXd7fCuc5vJ2IACfSXNKUbHi1r0mRWIvfTgl6ATk HMEAn1uAhwdFn+yQMAnAP/RrYx07wlIv =t1pG -----END PGP SIGNATURE-----

2 1

[Dovecot] multiple attribute templates?
by Mariano Absatz 29 Dec '09

29 Dec '09

Hi, I've been using an attribute template for some time without any problems. My accounts are on an LDAP server and I have an attribute maildropPath which is the maildir path for the user relative to /home/vmail That is, user "mabsatz(a)example.org" has, in attribute maildropPath the string "example.org/mabsatz", meaning that the maildir is in /home/vmail/example.org/mabsatz This is configured like this (taken from http://wiki.dovecot.org/AuthDatabase/LDAP/Userdb) user_attrs = maildropPath=mail=maildir:/home/vmail/%$ pass_attrs = uid=user,userPassword=password,maildropPath=userdb_mail=maildir:/home/vmail/%$ and it works OK. Now I want to start using sieve and, since all accounts are virtual, I want to use a subdirectory "sieve" within the maildir to hold the scripts, so I need (I think) a userdb home to point to the same path... being a monkey I tried to imitate (or rather, extend) the previous configuration like this: user_attrs = maildropPath=mail=maildir:/home/vmail/%$,maildropPath=home=/home/vmail/%$ pass_attrs = uid=user,userPassword=password,maildropPath=userdb_mail=maildir:/home/vmail/%$,maildropPath=userdb_home=/home/vmail/%$ Alas... this didn't work... that is, apparently, the "home" attribute works OK (I got my scripts on the /home/vmail/example.org/mabsatz/sieve directory), but the "mail" attribute got lost and mail is being delivered to /home/vmail/mabsatz. Is there a way to use more than one attribute template AND that both use the same LDAP attribute? Otherwise, can someone think of a better way to do what I'm trying to do? I'm using dovecot 1.1.11 from the standard ubuntu 9.04 package (dovecot-imapd_1.1.11-0ubuntu4.1). -- Mariano Absatz - "El Baby" el.baby(a)gmail.com www.clueless.com.ar -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Real programmers use: cat > a.out http://xkcd.com/378/ -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- * TagZilla 0.066 * http://tagzilla.mozdev.org

2 1

[Dovecot] Deliver EX_TEMPFAIL's without giving any information
by Denis Khromov 29 Dec '09

29 Dec '09

Hi all. I've had a hard time trying to find out why deliver isn't working after I've updated dovecot from v1.11 to v1.2.8. It just gave me EX_TEMPFAIL without any info in the logs. My deliver was setuid-root. Once I've made a simple shell wrapper script for the deliver executable which saves deliver's stdout+stderr, I've found the reason: /usr/local/libexec/dovecot/deliver must not be both world-executable and setuid-root. This allows root exploits. See http://wiki.dovecot.org/LDA#multipleuids Did a 'chmod o-x deliver' and fixed groups/owners and now everything works as it should. I think this error message should go to log files, not just to stdout/stderr. And it's worth to describe this behaviour in the Wiki. Cheers, Denis

2 1

[Dovecot] dovecot -n output of (default) is confusing me
by john.blue＠cox.net 29 Dec '09

29 Dec '09

Hello, I'm new to dovecot and I've been taking my time examining what makes dovecot work. If I have imap and pop3 listed as protocols, dovecot -n outputs: mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 I don't understand why imap is listed twice once as (default), and the other without (default). As a secondary question, why would you want a default of imap as opposed to pop3? Thanks. John

2 1

[Dovecot] Log rotation?
by Beto Moreno 29 Dec '09

29 Dec '09

Hi people. I had read dovecot logging info, they say something about using log rotation to help us rotate our log, with this setup: # dovecot SIGUSR1: Re-opens the log files. /var/log/dovecot*.log { missingok notifempty delaycompress sharedscripts postrotate /bin/kill -USR1 `cat /var/run/dovecot/master.pid 2>/dev/null` 2> /dev/null || true endscript } Well, my question is simple, Do we need to restart the service each time logrotation runs? In my case, is wrong this? var/log/dovecot*.log { weekly rotate 8 notifempty missingok copytruncate create 600 root start 0 } I have 2 dovecot logs: dovecot-info.log dovecot.log dovecot-info.log is the biggest, 5MB by week, is to much? Do I have to change our log rotation to "daily"? Centos 5.4 updated, dovecot 1.0.7-7.el5, thanks!!!

3 3

[Dovecot] Retrieve Physical Message Filename
by Tony Rutherford 29 Dec '09

29 Dec '09

Hi,Using Dovecot 1.2.9 with Maildir and Layout=FS.In a plugin, i'm overriding "update_flags":void my_mail_update_flags(struct mail *_mail, enum modify_type modify_type, enum mail_flags flags)For this email which is having its flags updated, I need to retrieve the physical filename of the message. I see where using:mail_get_special(_mail, MAIL_FETCH_UIDL_FILE_NAME, &fname);...I can retrieve part of the filename, but without the ":2" and the flags part.Is there a method I can use to get the whole filename (without having to reassemble it myself). I've looked around, and I'm guessing it exists, but I don't see it offhand.Thanks,...Tony RutherfordSoftware EngineerBlueTie Inc.arutherford(a)bluetie.com(585) 586-2000 x1040 This message is intended solely for the individual(s) to whom it is addressed. If you are not the intended recipient, any dissemination or copying is strictly prohibited. If you believe you received this message in error, please notify the sender and delete from your system. Thank you.

2 1

[Dovecot] Design: Optimizations for high-latency storage backend
by Timo Sirainen 29 Dec '09

29 Dec '09

Mainly intended for future support of key-value (etc.) databases, but this is probably useful even for regular disk I/O. By using async I/O for disk access, the OS could more intelligently do seeks on disk to read the wanted data with less latency. Problem #1: Accessing message body while searching (e.g. SEARCH BODY). The idea is that searching wouldn't block. Caller would typically use mailbox_search_next_nonblock() function, which can return "try again later" result. Whenever search sees a query that could potentially block (e.g. SEARCH BODY, or searching a header that might not be cached), it goes into a slightly different search mode: - the whole search would typically be run from beginning to end immediately, and the search result state would be stored for each message. - whenever search runs into a situation where the result can't be determined without opening message body, it issues a prefetch command for that message, marks the result for the message as "incomplete", and continues to the next message - once the search is done with all messages, it starts replying to the caller. if the next search result is incomplete at the time, the search returns "try again later". optimizations: - probably there should be prefetch limit (a queue) so that only maybe 10 requests are actually pending at a time. - probably the whole search shouldn't run immediately. maybe it should stop after having 10 requests pending. - prefetch could return only the needed parts of the message, such as "only header" or "only body" (or in future something like "message without attachments") There would be a new call, something like mailbox_search_set_nonblock_callback() that specifies a function to be called when next search result is available. The callback then would continue the search. This is similar to how IMAP SEARCH is already implemented, except currently when mailbox_search_next_nonblock() returns "try again later", Dovecot simply adds a 0 second timeout after which it's called again (that's enough for Dovecot to do some other pending work). Problem #2: Accessing index cache while searching. Cache file is typically in memory or in low-latency disk already. Anyway something similar to #1 could be implemented for it. "Make sure cache x..y bytes in cache file have been read to memory" call or something. Problem #3: Fetching message body (and uncached fields). The nice thing about lib-storage's fetching API is that the caller already specifies what fields it intends to access in mailbox_search_init(). So this code can use a similar technique than searching: - callers only use mailbox_search_next_nonblock() - which keeps returning "try again later" until the message body has been read to memory - trying to access a field that's not specified in wanted_fields in mailbox_search_init() could be (optionally) treated as a programming error and cause a crash instead of a blocking wait. Problem #4: How to drop latencies between IMAP commands? For example a (stupid) client issues commands: a FETCH 1 BODY.PEEK[] a FETCH 2 BODY.PEEK[] ..etc.. You really don't want to a delay between each command. So what Dovecot code needs to happen is to start processing the next command while waiting for previous one to finish reading the body to memory. A lot of this actually already works as intended, but there are some cases that don't, such as FETCH + SELECT (see #5). Problem #5: Opening mailbox index. So if your indexes are also stored in high-latency disk, how do you optimize getting STATUS for each mailbox? Again, a similar idea than before: Create a new mailbox_open_nonblock() function that calls a given callback function when the indexes are read to memory. During the wait it can continue processing more STATUS commands (hopefully client sends them all at once, instead of waiting for each reply before sending next STATUS). .. I think that's all of the problematic cases that could cause blocking. And the solution is always the same: Use prefetching and "try again later" status code with a callback function to be called when it's ready. Luckily there are only two functions that need the above behavior, implementing async callbacks for all functions would have made programming it horrible. The main problem will then be to optimize what and how much to prefetch. For example in the cache file case, should the cache be read to memory when mailbox is opened, or should it be delayed until something is actually wanted to be read from it? Should all of it be read, or should Dovecot attempt to be smarter to reduce memory usage and I/O bandwidth, so e.g. if the cache is wanted to be accessed to 3rd last message, maybe just read the cache file beginning from that message to EOF? Transaction log files have a similar problem. Actually all of this is similar to how Dovecot attempts to cache them to memory when using mmap_disable=yes, so it's not really a new problem.

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[Dovecot] Design: Mailbox list indexes
by Timo Sirainen 29 Dec '09

29 Dec '09

I drove over 2000 miles in recent days, so I had some time to think about future Dovecot things. :) Maybe for v2.1 or v3.0, whichever I happen to release next. Here's the first thought: The main idea behind mailbox list indexes was to make getting STATUS information for mailboxes from a single index file. The code was already written for Dovecot v1.1, but it was disabled because of bugs I never got around to fixing. It also was maybe a bit overdesigned to make it fast with thousands of mailboxes. There were two indexes: Mailbox UID -> name map index, and UID -> status info index. I don't think most people have that many mailboxes. Using two index files just makes the common case slower. So the new mailbox list index could be a single index (read/written to using the same index file API as for mails). Index's header would contain an ID -> string map. So basically an array of {uint32_t id, char nul-terminated-name[]} records. Each index record would contain: - mailbox UID number (32 bit) - ID number (32 bit), pointing to a string in the header. That'll be this mailbox's name. - parent mailbox UID (e.g. if parent's name is "foo" and our name is "bar", the mailbox is "foo/bar") - mailbox global UID (128 bit) - mailbox flags (\Noselect, \Nonexistent) - STATUS information: message/unseen counts, last-non-recent-uid (for recent count), uidvalidity, uidnext, highest-modseq - storage backend specific timestamps So typically the whole index would be read into memory and the mailbox tree would be generated based on the parent UID pointers. If there are any \Noselect or \Nonexistent mailboxes, they just have their GUIDs and STATUS info zeroed out. Each time a mailbox is created or renamed, a new name ID is added to the header with the given name. I don't think it's worth it to try to reuse old IDs. Unused names (after delete/rename) will be dropped sometimes later. Whenever STATUS information changes while accessing mailbox, the STATUS info is updated in mailbox list index. Also unless mailbox_list_index_dirty_syncs=yes (or something similar), the index can't be trusted by itself. So before trusting the index, Dovecot needs to check if the index is up to date by comparing the timestamps to what exists in filesystem. For example with Maildir there would be new/ and cur/ directories' mtimes. Then there's the problem of how to notice externally added/deleted/renamed mailboxes. It'll be immediately noticed if such mailbox is tried to be opened, but what about LIST replies? One possibility would be to refresh the list once when session begins and after that just have LIST return indexed mailboxes. Another would be to keep track of directory mtimes and keep stat()ing the dirs to see if something changes. The latter is probably more trouble than worth.. Besides caching LIST and STATUS replies, there's one additional thing I thought of that the mailbox list indexes will be useful for: atomic mailbox list updates. Even if the backend doesn't support e.g. atomic RENAME (such as Maildir++), this can be made practically atomic using the list index. CREATE, RENAME and DELETE commands begin by writing and committing a record to the mailbox list index about the change. Then they'll start the actual change, and finally write to the index that the change is complete. If it crashed in the middle, the next session would finish it. If another session tries to do a conflicting change before the change is finished, it would wait for the previous one to finish. (Probably practically the index would be write-locked and all changes would wait for previous ones to finish.) And the final functionality of this mailbox list index is for the future support of key-value (etc.) databases: The mailbox list index would be the authoritative list of mailboxes. It wouldn't be stored anywhere else.

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[Dovecot] checking all folders for new mail (IMAP STATUS command)
by Florian Effenberger 29 Dec '09

29 Dec '09

Hello, I use Thunderbird as IMAP client and do a lot of server-side filtering with Sieve scripts. To be notified of new mails, I want to check all folders (a lot of them...) at once for new mails, and not only the inbox. According to http://kb.mozillazine.org/Checking_for_new_messages_in_other_folders_-_Thun… it should be sufficient to enable one setting -- given that the IMAP server returns the STATUS command correctly. I still run Dovecot 1.0 (from Debian 4.0), and it seems this version doesn't support the IMAP STATUS command, as I have to explictly query each folder with the second mentioned setting. What is the recommended way of checking all folders for new mails? Is there any server-side setting I can activate? Do newer versions of Dovecot support the STATUS command in the way Thunderbird expects it? Or does Dovecot even offer an option like the mentioned IMAP_CHECK_ALL_FOLDERS=1 and IMAP_ENHANCEDIDLE=1 in Courier? Sorry for my maybe dumb question... :-) Thanks, Florian

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Re: [Dovecot] Dovecot-deliver sometimes fails when message set to discard via sieve
by Tobias Lang 29 Dec '09

29 Dec '09

Am 28.12.2009 um 21:51 schrieb Steve Wagner: > Sorry it took some time to get in to this failing situation. > > Procmail log--> > > procmail: [29952] Mon Dec 28 21:36:33 2009 > procmail: Match on "< 256000" > procmail: Locking "spamassassin.lock" > procmail: Executing "/usr/bin/spamc,-U,/var/run/spamd.sock" > procmail: [29952] Mon Dec 28 21:36:35 2009 > procmail: Unlocking "spamassassin.lock" > procmail: No match on "^X-Spam-Level: \*\*\*\*\*\*\*\*\*\*" > procmail: No match on "^X-Spam-Status: YES" > procmail: No match on "^List-Id: .*debian-arm.lists.debian.org" > procmail: No match on "^^rom[ ]" > procmail: Executing "/opt/dovecot/libexec/dovecot/deliver" > procmail: Error while writing to "/opt/dovecot/libexec/dovecot/deliver" > procmail: Assigning "LASTFOLDER=/opt/dovecot/libexec/dovecot/deliver" > procmail: Assigning > "LASTFOLDER=/home/lanwin/Maildir/new/1262032593.29952_2.vs5923" > procmail: Notified comsat: > "lanwin@0:/home/lanwin/Maildir/new/1262032593.29952_2.vs5923" > From KeineAntwortAdresse(a)web.de Mon Dec 28 21:36:33 2009 > Subject: discoTEL > =?ISO-8859-1?Q?Tarif=3A_F=FCr_7=2C5_Cent=2FMin=2E_telefonier > Folder: /home/lanwin/Maildir/new/1262032593.29952_2.vs5923 > 41096 > procmail: Unlocking "/home/lanwin/Maildir/.lockmail" > > Dovecot Deliver Log--> > > 2009-12-28 21:36:35 deliver(lanwin): Info: sieve: > msgid=<E1NPMKF-00014k-00(a)mxnl04.web.de>: marked message to be discarded > if not explicitly delivered (discard action) Does it always fail, if you try to do a discard, just sometimes? I am using Dovecot 1.2.9 "dovecot-1.2-sieve-0.1.14" and discarding email seems to work fine. The things I can think of are: 1) Wrong privileges for deleting. What user does procmail / deliver run as? 2) Old Bug in Sieve (http://www.dovecot.org/list/dovecot/2007-July/024290.html) 3) If it fails just sometimes, what is the difference between discarded and nondiscarded mails. If this does not turn up something, I do not have an idea what is going wrong. Only bugfix I then can you provide with, is not to discard but to move those files to a folder 'SPAM' and delete them by hand. Tobi

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[Dovecot] Shared mailboxes do not support subfolders
by Nick Rosier 29 Dec '09

29 Dec '09

Hi, I'm currently running Dovecot 1.2.8 with dbox mailboxes. I've configured the use of shared mailboxes. I'm able to only see the top-level mailboxes: e.g. Inbox LogWatch Trash Sent but not LogWatch/Server1 LogWatch/Server2 Is this a know limitation of a bug? Rgds, N.

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