- dovecot - dovecot.org

[Dovecot] multiple dovecot invocations
by Stewart Dean 05 Jun '07

05 Jun '07

I need to have multiple invocations of dovecot running, one for productions and then one or more for test/dev, doing things like trying different authentication methods, getting quota working, etc. I knew how to do this with inetd, but I have been convinced that direct invocation is preferable, so I need to know how to do multiple invocations of dovecot. I had thought that perhaps I could do this: dovecot -c /usr/local/etc/dovecot2.conf where dovecot2.conf has different different listen port parms. This I did, and while it does seem to work, I get this error in the syslog: > Jun 5 14:42:43 mercury mail:err|error dovecot: Socket already exists: /usr/local/var/run/dovecot/dict-server > Jun 5 14:42:43 mercury mail:crit dovecot: execv(/usr/local/libexec/dovecot/dict) failed: No such file or directo > ry > Jun 5 14:42:43 mercury mail:err|error dovecot: child 1437914 (dict) returned error 84 (exec() failed) How do I correctly run multiple dc instances? -- ==== Stewart Dean, Unix System Admin, Henderson Computer Resources Center of Bard College, Annandale-on-Hudson, New York 12504 sdean(a)bard.edu voice: 845-758-7475, fax: 845-758-7035

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Re: [Dovecot] AIX mail quota plugin problems + dotlock problem resolved
by Timo Sirainen 05 Jun '07

05 Jun '07

On Tue, 2007-06-05 at 12:30 -0400, Stewart Dean wrote: > quotactl(Q_GETQUOTA, /) failed: Invalid argument So apparently this quotactl() call is wrong with AIX: if (quotactl(root->mount->mount_path, QCMD(Q_GETQUOTA, USRQUOTA), root->uid, (void *)&dqblk) < 0) { I don't know why though. You could try changing root->mount->mount_path to some actual mbox file path to see if it returns errors then. Except weren't your mailboxes NFS mounted? quotactl() doesn't work for NFS mounts at all. For NFS you could try this instead http://dovecot.org/patches/quota-rquotad.c

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[Dovecot] IMAP traffic logging
by Chris Laif 05 Jun '07

05 Jun '07

Hi. I wonder if it is possible to log the number of bytes send in response to IMAP commands. Unfortunately there seems to be no config option similar to "pop3_logout_format". Courier writes a log file like this (header/body bytes): imaplogin: DISCONNECTED, ip=[::ffff:10.123.0.234], headers=0, body=0 Chris

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[Dovecot] Dovecot Authentication Problem - Help pls!
by Odhiambo WASHINGTON 05 Jun '07

05 Jun '07

Hello List, This is dovecot 1.0.0 on FreeBSD 4.11-STABLE. I did not provide this information before:-) I am back again and I think I am edging closer to getting a solution. I have done some modifications and now dovecot gives me a different error message than before.... Here is what I have for the password_query and user_query password_query = SELECT popbox.cleartext AS password FROM popbox, domain \ WHERE popbox.local_part = 'eddie' AND popbox.domain_name = 'demo.wananchi.com' \ AND popbox.domain_name = domain.domain_name; +----------+ | password | +----------+ | boeing8 | +----------+ user_query = SELECT CONCAT(domain.path, '/', popbox.mbox_name) as home, \ 69 as uid, 6 as gid FROM popbox, domain WHERE popbox.local_part = 'eddie' \ AND popbox.domain_name = 'demo.wananchi.com' AND \ popbox.domain_name = domain.domain_name; +--------------------------------------------+-----+-----+ | home | uid | gid | +--------------------------------------------+-----+-----+ | /var/spool/virtual/demo.wananchi.com/eddie | 69 | 6 | +--------------------------------------------+-----+-----+ When I test to connect to the pop3 daemon, this is what happens now: root@ns2]#telnet 0 7173 Trying 0.0.0.0... Connected to 0. Escape character is '^]'. +OK Welcome. Dovecot is Ready to serve your emails. user eddie(a)demo.wananchi.com +OK pass boeing8 -ERR [IN-USE] Internal login failure. Refer to server log for more information. Connection closed by foreign host. ...and this is what dovecot writes to the log: [root@ns2]#less /var/log/dovecot.log dovecot: May 30 12:00:04 Info: auth(default): client in: AUTH 1 PLAIN service=POP3 secured lip=62.8.64.4 rip=62.8.64.4 resp=AGVkZGllQGRlbW8ud2FuYW5jaGkuY29tAGJvZWluZzg= dovecot: May 30 12:00:04 Info: auth-worker(default): mysql: Connected to localhost (virtualemail) dovecot: May 30 12:00:04 Info: auth-worker(default): sql(eddie(a)demo.wananchi.com,62.8.64.4): query: SELECT popbox.cleartext AS password FROM popbox, domain WHERE popbox.local_part = 'eddie' AND popbox.domain_name = 'demo.wananchi.com' AND popbox.domain_name = domain.domain_name dovecot: May 30 12:00:04 Info: auth(default): client out: OK 1 user=eddie(a)demo.wananchi.com dovecot: May 30 12:00:04 Info: auth(default): master in: REQUEST 2 36772 1 dovecot: May 30 12:00:04 Info: auth-worker(default): sql(eddie(a)demo.wananchi.com,62.8.64.4): SELECT CONCAT(domain.path, '/', popbox.mbox_name) as home, 69 as uid, 6 as gid FROM popbox, domain WHERE popbox.local_part = 'eddie' AND popbox.domain_name = 'demo.wananchi.com' AND popbox.domain_name = domain.domain_name dovecot: May 30 12:00:05 Error: child 39853 (auth-worker) killed with signal 11 dovecot: May 30 12:00:05 Info: auth(default): master out: FAIL 2 dovecot: May 30 12:00:05 Info: pop3-login: Internal login failure: user=<eddie(a)demo.wananchi.com>, method=PLAIN, rip=62.8.64.4, lip=62.8.64.4, secured User's mail is stored in /var/spool/virtual/$domain/$user/{new,cur,tmp} The path /var/spool/virtual/ is owned by uid:gid 69:6, and is writeable by that uid. dovecot -n: # /usr/local/etc/dovecot.conf base_dir: /var/run/dovecot/ log_path: /var/log/dovecot.log protocols: imap pop3 listen(default): *:7143 listen(imap): *:7143 listen(pop3): *:7110 ssl_disable: yes disable_plaintext_auth: no shutdown_clients: no login_dir: /var/run/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login login_user: exim login_greeting: Welcome. Dovecot is Ready to serve your emails. login_process_size: 64 login_max_processes_count: 200 verbose_proctitle: yes first_valid_uid: 69 first_valid_gid: 0 mail_extra_groups: dovecot:mail mail_location: maildir:/var/spool/virtual/%d/%n mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): outlook-idle pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login digest-md5 cram-md5 verbose: yes debug_passwords: yes passdb: driver: sql args: /usr/local/etc/dovecot-sql.conf userdb: driver: sql args: /usr/local/etc/dovecot-sql.conf socket: type: listen client: path: /var/run/dovecot/auth-client mode: 432 master: path: /var/run/dovecot/auth-master mode: 384 user: root group: wheel Here is a backtrace of the dovecot-auth crash: [root@ns2]#gdb /usr/local/libexec/dovecot/dovecot-auth dovecot-auth.core GNU gdb 4.18 (FreeBSD) Copyright 1998 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 "i386-unknown-freebsd"...(no debugging symbols found)... Core was generated by `dovecot-auth'. Program terminated with signal 11, Segmentation fault. Reading symbols from /usr/lib/libcrypt.so.2...(no debugging symbols found)...done. Reading symbols from /usr/lib/libpam.so.1...(no debugging symbols found)...done. Reading symbols from /usr/local/lib/compat/pkg/libmysqlclient.so.10...(no debugging symbols found)...done. Reading symbols from /usr/lib/libm.so.2...(no debugging symbols found)...done. Reading symbols from /usr/local/lib/libsqlite3.so.8...(no debugging symbols found)...done. Reading symbols from /usr/lib/libc.so.4...(no debugging symbols found)...done. Reading symbols from /usr/lib/libz.so.2...(no debugging symbols found)...done. Reading symbols from /usr/libexec/ld-elf.so.1...(no debugging symbols found)...done. #0 0x805dc00 in userdb_blocking_lookup () (gdb) bt #0 0x805dc00 in userdb_blocking_lookup () #1 0x805dd50 in userdb_blocking_lookup () #2 0x806175a in sql_drivers_register_all () #3 0x8060d1c in sql_query () #4 0x805de62 in userdb_blocking_lookup () #5 0x8055724 in auth_stream_is_empty () #6 0x80557f4 in auth_stream_is_empty () #7 0x8055894 in auth_stream_is_empty () #8 0x80668ac in io_loop_handler_run () #9 0x80662a1 in io_loop_run () #10 0x805770f in main () #11 0x804fd52 in _start () (gdb) Please help! -Wash http://www.netmeister.org/news/learn2quote.html DISCLAIMER: See http://www.wananchi.com/bms/terms.php -- +======================================================================+ |\ _,,,---,,_ | Odhiambo Washington <wash(a)wananchi.com> Zzz /,`.-'`' -. ;-;;,_ | Wananchi Online Ltd. www.wananchi.com |,4- ) )-,_. ,\ ( `'-'| Tel: +254 20 313985-9 +254 20 313922 '---''(_/--' `-'\_) | GSM: +254 722 743223 +254 733 744121 +======================================================================+ Hindsight is an exact science.

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[Dovecot] AIX mail quota plugin problems
by Stewart Dean 05 Jun '07

05 Jun '07

From reading the wiki for a filesystem quota, I took my shot at 1) building my binaries using the mods in AIXPluginsSupport 2) changing dovecot.conf and 3) putting the plugins in the library But I'm getting this error message when I invoke dovecot: Plugin imap_quota not found from directory /usr/local/lib/dovecot Error: imap dump-capability process returned 89 It would seem that a) I have the syntax or the parameters wrong b) I didn't get the changes to the AIX build environment right I've attached the dovecot -n output. Here are the details of what I did. 1) dovecot.conf =========== within the imap config section =========== # Support for dynamically loadable plugins. mail_plugins is a space separated # list of plugins to load. #mail_plugins = #mail_plugin_dir = /usr/lib/dovecot/imap # SD 5/24/07 tryout FS quota plugin mail_plugins = quota imap_quota mail_plugin_dir = /usr/local/lib/dovecot/imap plugin { # Here you can give some extra environment variables to mail processes. # This is mostly meant for passing parameters to plugins. %variable # expansion is done for all values. # Quota plugin. Multiple backends are supported: # dirsize: Find and sum all the files found from mail directory. # Extremely SLOW with Maildir. It'll eat your CPU and disk I/O. # dict: Keep quota stored in dictionary (eg. SQL) # maildir: Maildir++ quota # fs: Read-only support for filesystem quota #quota = maildir # SD 5/24/07 Try FS quota support quota = fs I've tried it as both mail_plugin_dir = /usr/local/lib/dovecot/imap and mail_plugin_dir = /usr/local/lib/dovecot 2) Both ways I see this error message: > 4229 root@mercury:/usr/local/etc ## dovecot > ILoading modules from directory: /usr/local/lib/dovecot > IModule loaded: /usr/local/lib/dovecot/lib10_quota_plugin.so > FPlugin imap_quota not found from directory /usr/local/lib/dovecot > Error: imap dump-capability process returned 89 > > 4272 root@mercury:/usr/local/lib/dovecot/imap ## dovecot > ILoading modules from directory: /usr/local/lib/dovecot/imap > IModule loaded: /usr/local/lib/dovecot/imap/lib10_quota_plugin.so > FPlugin imap_quota not found from directory /usr/local/lib/dovecot/imap > Error: imap dump-capability process returned 89 > 3) These directories have the following contents: 4292 root@mercury:/usr/local/lib/dovecot ## ls -al total 1168 drwxr-xr-x 3 root system 512 May 24 12:36 ./ drwxr-xr-x 7 root system 512 May 21 14:31 ../ -rw-r--r-- 1 root sys 292522 May 22 15:12 052207-1455-64bit-ssl.lib10_quota_plugin.a -rwxr-xr-x 1 root sys 904 May 22 15:12 052207-1455-64bit-ssl.lib10_quota_plugin.la* -rwxr-xr-x 1 root sys 270499 May 22 15:12 052207-1455-64bit-ssl.lib10_quota_plugin.so* drwxr-xr-x 2 root system 512 May 24 12:41 imap/ lrwxrwxrwx 1 root system 65 May 24 12:36 lib10_quota_plugin.a@ -> /usr/local/lib/dovecot/052207-1 455-64bit-ssl.lib10_quota_plugin.a lrwxrwxrwx 1 root system 66 May 24 12:36 lib10_quota_plugin.la@ -> /usr/local/lib/dovecot/052207- 1455-64bit-ssl.lib10_quota_plugin.la* lrwxrwxrwx 1 root system 66 May 24 12:36 lib10_quota_plugin.so@ -> /usr/local/lib/dovecot/052207- 1455-64bit-ssl.lib10_quota_plugin.so* root@mercury:/usr/local/lib/dovecot/imap ## ls -al total 152 drwxr-xr-x 2 root system 512 May 24 12:41 ./ drwxr-xr-x 3 root system 512 May 24 12:36 ../ -rw-r--r-- 1 root system 19250 May 22 15:12 052207-1455-64bit-ssl.lib11_imap_quota_plugin.a -rwxr-xr-x 1 root system 944 May 22 15:12 052207-1455-64bit-ssl.lib11_imap_quota_plugin.la* -rwxr-xr-x 1 root system 28645 May 22 15:12 052207-1455-64bit-ssl.lib11_imap_quota_plugin.so* lrwxrwxrwx 1 root system 66 May 24 12:36 lib10_quota_plugin.so@ -> /usr/local/lib/dovecot/052207- 1455-64bit-ssl.lib10_quota_plugin.so* lrwxrwxrwx 1 root system 75 May 24 12:36 lib11_imap_quota_plugin.a@ -> /usr/local/lib/dovecot/ima p/052207-1455-64bit-ssl.lib11_imap_quota_plugin.a lrwxrwxrwx 1 root system 76 May 24 12:36 lib11_imap_quota_plugin.la@ -> /usr/local/lib/dovecot/im ap/052207-1455-64bit-ssl.lib11_imap_quota_plugin.la* lrwxrwxrwx 1 root system 76 May 24 12:36 lib11_imap_quota_plugins.so@ -> /usr/local/lib/dovecot/i Any suggestions? -- ==== Stewart Dean, Unix System Admin, Henderson Computer Resources Center of Bard College, Annandale-on-Hudson, New York 12504 sdean(a)bard.edu voice: 845-758-7475, fax: 845-758-7035

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[Dovecot] testink
by Timo Sirainen 05 Jun '07

05 Jun '07

# Protocols we want to be serving: # imap imaps pop3 pop3s #protocols = imap imaps # IP or host address where to listen in for connections. It's not currently # possible to specify multiple addresses. "*" listens in all IPv4 interfaces. # "[::]" listens in all IPv6 interfaces, but may also listen in all IPv4 # interfaces depending on the operating system. You can specify ports with # "host:port". #imap_listen = * #pop3_listen = *

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[Dovecot] Is there a "connect acl" ?
by Oliver Schulze L. 05 Jun '07

05 Jun '07

Hi, I have been reading the acl documentation and it seems that a "connect acl" is not available. I need to limit the users that can login in an IP number, is that posible with dovecot 1.0? (i.e. only these users can login from the Internet) Or a new plugin should be written? It is complicated to do that? Thanks Oliver -- Oliver Schulze L. | http://tinymailto.com/oliver Asuncion - Paraguay | http://www.solojuegos.mobi

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[Dovecot] Backing up mail?
by Knute Johnson 04 Jun '07

04 Jun '07

My mail server is running on a Fedora FC5 box. I need to move the mail server to another computer and so I need to back up my user's mail and move it. I have found mail in /var/spoo/mail/[users] and in their home directories there is a 'mail' directory. All users have an 'Inbox' file that is empty and I think the one IMAP user has a 'Trash' file that is huge! Are those the only files I need to copy or are there others lurking out there that I don't know about? Thanks, -- Knute Johnson Molon Labe...

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[Dovecot] tweaking performance
by Paul A 04 Jun '07

04 Jun '07

Hi, I was wondering if anyone had some ideas on what I can tweak to gain more performance. We have tome timeouts reports on pop3 during heavy load periods. Using imap/pop3 with maildir with 7,000 users using mostly pop3. # /usr/local/etc/dovecot.conf protocols: imap pop3 ssl_disable: yes 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(pop3): /usr/local/libexec/dovecot/pop3-login login_greeting: Cape.Com D-V.1 wpam - ready. login_processes_count: 16 login_max_processes_count: 500 max_mail_processes: 9000 mail_location: maildir:/home/%1u/%u/Maildir maildir_copy_with_hardlinks: yes mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %v.%u pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: count: 6 passdb: driver: pam userdb: driver: passwd TIA, PA

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[Dovecot] dovecot-shared tries to fchown index+control files but fails
by Adam McDougall 04 Jun '07

04 Jun '07

I have some public mailboxes setup in 1.0.0, location = maildir:/egr/mail/shared/org:CONTROL=%h/Maildir/dovecot/public/control/org:INDEX=%h/Maildir/dovecot/public/indexes/org I also have a dovecot-shared file in the maildir folders so messages that are added to the inbox get a decent set of default permissions. However, I think dovecot is also trying to fchown the index files (stored in a user home directory, far away from the shared mail) to match the owner of the dovecot-shared file. When I rename dovecot-shared, these errors (apparently harmless at this point) go away: May 24 18:45:35 hostname dovecot: IMAP(username): fchown(/home/username/Maildir/dovecot/public/control/org/.mailfolder/dovecot-uidlist) failed: Operation not permitted May 24 18:45:35 hostname dovecot: IMAP(username): fchown() failed with file /home/username/Maildir/dovecot/public/indexes/org/.mailfolder/dovecot.index.log: Operation not permitted At this point it is just clogging up the log, but I see two issues: 1. Isn't dovecot already running as the imap user, so as long as that user isn't root, it shouldn't be possible to change file owners at all. This is the behavior I see of dovecot-shared on new mail files, that is the group and file mode from dovecot-shared are applied, but not the owner. 2. Since these kind of metadata files aren't generally supposed to be shared anyway, why would it even want to change the permissions? Especially since I have them stored in a place where the user has ownership already. Please let me know if I am missing something, or a behavior change is needed. Thanks.

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