- dovecot - dovecot.org

[Dovecot] PAM_USER falsely assumed immutable
by Aaron Richton 23 Jul '09

23 Jul '09

In 1.2.1 there's: passdb-pam.c:230 status = pam_get_item(pamh, PAM_USER, &item); passdb-pam.c:237 auth_request_set_field(request, "user", item, NULL); so "item" is PAM_USER, which is then checked by auth_request_set_field: 1022 if (strcmp(request->user, value) != 0) { 1023 auth_request_log_debug(request, "auth", 1024 "username changed %s -> %s", 1025 request->user, value); that it hasn't changed. You're not allowed to assume that PAM_USER doesn't change. See, for example, http://www.kernel.org/pub/linux/libs/pam/Linux-PAM-html/adg-security-user-i… to say nothing of the fact that Rutgers has PAM modules that do exactly that (change PAM_USER). This check needs to be relaxed (or, perhaps if you want a config directive for DontComplyWithThePAMSpec = true, you can have a tunable). Can this be as simple as ditching the call to auth_request_set_field, or is there concern over interactions between PAM and other auth features?

2 2

[Dovecot] Defunct processes w/ v1.2.1
by Chris O'Regan 22 Jul '09

22 Jul '09

I have limited information at the moment (currently distracted by other projects) but I'm hoping that someone has already found and solved this problem. I have a v1.2.1 installed on my development box waiting for me to tinker with the configuration. On several occasions, I have noticed that all the dovecot processes are listed as "defunct". I don't recall seeing anything significant in the logs the last time I checked. The system is not under any load. Has anyone else encountered this before? If not, I will dig deeper. BTW, ignore the fd limit warning below; limits are set in the init script. # /local/bin/dovecot -n # 1.2.1: /local/pkg/dovecot-1.2.1/root/etc/dovecot.conf Warning: fd limit 1024 is lower than what Dovecot can use under full load (more than 10240). Either grow the limit or change login_max_processes_count and max_mail_processes settings # OS: Linux 2.4.21-58.ELsmp i686 Red Hat Enterprise Linux AS release 3 (Taroon Update 9) listen: localhost ssl_listen: * ssl_cert_file: /usr/share/ssl/certs/mail.encs.pem ssl_key_file: /usr/share/ssl/certs/mail.encs.pem login_dir: /var/run/dovecot/login login_executable: /local/pkg/dovecot-1.2.1/root/libexec/dovecot/imap-login login_processes_count: 32 login_max_processes_count: 2048 max_mail_processes: 8192 first_valid_uid: 200 mail_location: mbox:~/mail:INBOX=/var/spool/mail/%1u/% u:INDEX=/local/data/dovecot/indexes/mail/%1u/%u namespace: type: private separator: / inbox: yes list: yes subscriptions: yes namespace: type: private separator: / prefix: mail/ hidden: yes list: no subscriptions: yes namespace: type: private separator: / prefix: ~/mail/ hidden: yes list: no subscriptions: yes namespace: type: private separator: / prefix: ~%u/mail/ hidden: yes list: no subscriptions: yes auth default: passdb: driver: pam userdb: driver: passwd -- Chris O'Regan <chris(a)encs.concordia.ca> Senior Unix Systems Administrator, Academic IT Services Faculty of Engineering and Computer Science Concordia University, Montreal, Canada

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[Dovecot] virtual plugin question
by Nikita Koshikov 22 Jul '09

22 Jul '09

Hello list, After enabling virtual plugin in dovecot config, I got imap segmentation faults from time to time. I can't say what event trigs this behavior, but in logs I see: Jul 22 13:55:01 dovecot: Error: child 20908 (imap) killed with signal 11 (core dumped) Jul 22 13:56:43 dovecot: Error: child 19466 (imap) killed with signal 11 (core dumped) Jul 22 14:06:16 dovecot: Error: child 22629 (imap) killed with signal 11 (core dumped) Jul 22 14:08:17 dovecot: Error: child 22879 (imap) killed with signal 11 (core dumped) Here is my config section, which I added to enable virtual plugin: namespace private { prefix = Company/ separator = / location = virtual:/var/mail/virtual subscriptions = no } and "virtual" to mail_plugins in imap and lda section. Full dovecot -n config provided at the end of this message. I'm not sure, if it is save to enable virtual location for all users using the same path, but the main goal for me - to create dovecot-virtual files once for all users. Maybe INDEX-es should be personalize for this setup work correct ? ls -la /var/mail/virtual/ drwxr-xr-x 2 mail mail 4096 Июл 22 15:43 all drwxr-xr-x 2 mail mail 4096 Июл 22 15:37 favorites -rw-r--r-- 1 mail mail 14 Июл 22 13:53 .virtual-subscriptions cat /var/mail/virtual/all/dovecot-virtual #all emails * all cat /var/mail/virtual/favorites/dovecot-virtual #Mark messages * flagged Core dump: gdb /usr/libexec/dovecot/imap /data/mail/domain.com/koshikov.n/core GNU gdb 6.8 Copyright (C) 2008 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 "i686-pc-linux-gnu"... (no debugging symbols found) warning: Can't read pathname for load map: Input/output error. Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/libdl.so.2 Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/libc.so.6 Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/ld-linux.so.2 Reading symbols from /usr/lib/dovecot/imap/lib10_quota_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/dovecot/imap/lib10_quota_plugin.so Reading symbols from /usr/lib/dovecot/imap/lib11_imap_quota_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/dovecot/imap/lib11_imap_quota_plugin.so Reading symbols from /usr/lib/dovecot/imap/lib11_trash_plugin.so... (no debugging symbols found)...done. Loaded symbols for /usr/lib/dovecot/imap/lib11_trash_plugin.so Reading symbols from /usr/lib/dovecot/imap/lib20_autocreate_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/dovecot/imap/lib20_autocreate_plugin.so Reading symbols from /usr/lib/dovecot/imap/lib20_expire_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/dovecot/imap/lib20_expire_plugin.so Reading symbols from /usr/lib/dovecot/imap/lib20_virtual_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/dovecot/imap/lib20_virtual_plugin.so Reading symbols from /usr/lib/dovecot/imap/lib20_zlib_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/dovecot/imap/lib20_zlib_plugin.so Reading symbols from /lib/libz.so.1... (no debugging symbols found)...done. Loaded symbols for /lib/libz.so.1 Reading symbols from /lib/libbz2.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/libbz2.so.1 (no debugging symbols found) Core was generated by `imap'. Program terminated with signal 11, Segmentation fault. [New process 29801] #0 0xb7f6157c in ?? () from /usr/lib/dovecot/imap/lib20_virtual_plugin.so (gdb) bt full #0 0xb7f6157c in ?? () from /usr/lib/dovecot/imap/lib20_virtual_plugin.so No symbol table info available. #1 0x083895d8 in ?? () No symbol table info available. #2 0x00000573 in ?? () No symbol table info available. #3 0xbfbeada0 in ?? () No symbol table info available. #4 0xbfbeadc8 in ?? () No symbol table info available. #5 0xbfbeadeb in ?? () No symbol table info available. #6 0x08389da4 in ?? () No symbol table info available. #7 0xbfbeadb8 in ?? () No symbol table info available. #8 0x08389da8 in ?? () No symbol table info available. #9 0x00000000 in ?? () No symbol table info available. dovecot -n: # 1.2.1: /etc/dovecot/dovecot.conf Warning: Growing pool 'settings' with: 8192 # OS: Linux 2.6.26-gentoo-r4 i686 Gentoo Base System release 1.12.11.1 log_path: /var/log/dovecot/dovecot-error.log info_log_path: /var/log/dovecot/dovecot.log protocols: imaps managesieve ssl_cert_file: /etc/ssl/dovecot/imaps.crt ssl_key_file: /etc/ssl/dovecot/imaps.key login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(managesieve): /usr/libexec/dovecot/managesieve-login login_greeting: Server ready. login_processes_count: 10 login_max_processes_count: 512 first_valid_uid: 8 last_valid_uid: 8 first_valid_gid: 12 last_valid_gid: 12 mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(managesieve): /usr/libexec/dovecot/managesieve mail_plugins(default): quota imap_quota trash expire zlib autocreate virtual mail_plugins(imap): quota imap_quota trash expire zlib autocreate virtual mail_plugins(managesieve): mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(managesieve): /usr/lib/dovecot/managesieve imap_client_workarounds(default): delay-newmail imap_client_workarounds(imap): delay-newmail imap_client_workarounds(managesieve): namespace: type: private separator: / inbox: yes list: yes subscriptions: yes namespace: type: private separator: / prefix: Company/ location: virtual:/var/mail/virtual list: yes namespace: type: public separator: / prefix: #Public/ location: maildir:/var/mail/public list: yes auth default: mechanisms: plain login cache_size: 10240 cache_negative_ttl: 0 user: dovecot_auth master_user_separator: * worker_max_count: 50 passdb: driver: passwd-file args: /etc/dovecot/passdb/master.pwd master: yes passdb: driver: passwd-file args: /etc/dovecot/passdb/users.pwd passdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf userdb: driver: prefetch userdb: driver: ldap args: /etc/dovecot/dovecot-userdb-ldap.conf userdb: driver: passwd-file args: /etc/dovecot/passdb/users.pwd socket: type: listen client: path: /var/run/dovecot/auth-client mode: 432 user: mail group: dovecot_auth master: path: /var/run/dovecot/auth-master mode: 384 user: mail group: mail plugin: quota_warning: storage=95%% /etc/dovecot/plugins/quota_warning.sh 95 quota: maildir:Mailbox quota quota_rule: *:storage=500M quota_rule2: Trash:storage=10%% trash: /etc/dovecot/plugins/dovecot-trash.conf expire: Trash 30 Spam 30 expire_dict: proxy::expire autocreate: Drafts autocreate2: Sent autocreate3: Spam autocreate4: Trash autosubscribe: Drafts autosubscribe2: Sent autosubscribe3: Spam autosubscribe4: Trash sieve: ~/.dovecot.sieve sieve_dir: ~/sieve sieve_before: /etc/dovecot/sieve/default.sieve dict: expire: sqlite:/etc/dovecot/plugins/expire.conf

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[Dovecot] Problem with INTERNALDATE when the year in localtime and GMT different
by 도원철 21 Jul '09

21 Jul '09

In my thought utc_offset function in src/lib/utc-offset.c returns wrong offset value when the year in localtime and GMT different. /* max offset of 24 hours */ if (ltm.tm_yday < gtm.tm_yday) offset = -24 * 60; else if (ltm.tm_yday > gtm.tm_yday) offset = 24 * 60; else offset = 0; I think this code should be modified as followings. /* max offset of 24 hours */ if ((ltm.tm_year == gtm.tm_year && ltm.tm_yday < gtm.tm_yday) || (ltm.tm_year < gtm.tm_year)) offset = -24 * 60; else if ((ltm.tm_year == gtm.tm_year && ltm.tm_yday > gtm.tm_yday) || (ltm.tm_year > gtm.tm_year)) offset = 24 * 60; else offset = 0; On 1 Jan. 2009, I found an error related to this code. The intrenal date of message recieved at 01-Jan-2009 07:17:38 was not display as it received. The protocol log was as followings. FETCH (INTERNALDATE “01-Jan-2009 07:17:38 -3900” RFC822.SIZE 1597 FLAGS (\Seen) ENVELOP (“Thu, 1 Jan 2009 07:17:38 +0900 (KST)” … The INTERNALDATE must be “01-Jan-2009 07:17:38 +0900”, but it was "01-Jan- 2009 07:17:38 -3900". This error may be caused by the bug in utc_offset.c. How do you think?

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[Dovecot] plugin devel
by fernando＠dfcom.com.br 21 Jul '09

21 Jul '09

Hi, I´m planning to change our maildrop lda to deliver, but I need to devel a plugin in order to have some custom filtering. Are there any documentation regarding how to develop a dovecot plugin - tips, tricks, etc ? Thanks, Fernando

2 1

[Dovecot] [Bug] dovecot deliver v1.2.1 segfaults
by Nikita Koshikov 21 Jul '09

21 Jul '09

Hello list, I have noticed strange dovecot behavior with exim system-filter. I'm using exim+dovecot setup. My exim configuration have system filter enable, which restrict some attachments, like exe, vbs etc. When message with forbidden attachment received, exim accept the message, then construct bounce-message(Reject reason + original message) and returns it to sender. Trying to deliver such messages, I always get segmentation faults and message stayed in exim's queue. Others common delivers work fine. This only happens with bouncing system-filter messages. Steps to reproduce: 1) Create message with forbiden attachment 2) Send message. 3) Get segmentation fault. Here is more details: exim -d+all -M 1MSn7r-0003hN-BG (this command runs delivery from exim's queue) 13:14:23 11570 --------> koshikov.n(a)domain.com <-------- 13:14:23 11570 locking /var/spool/exim/db/retry.lockfile 13:14:23 11570 locked /var/spool/exim/db/retry.lockfile 13:14:23 11570 EXIM_DBOPEN(/var/spool/exim/db/retry) 13:14:23 11570 returned from EXIM_DBOPEN 13:14:23 11570 opened hints database /var/spool/exim/db/retry: flags=O_RDONLY 13:14:23 11570 dbfn_read: key=T:koshikov.n@domain.com 13:14:23 11570 no retry record exists 13:14:23 11570 search_tidyup called 13:14:23 11571 changed uid/gid: local delivery to koshikov.n <koshikov.n(a)domain.com> transport=local_delivery 13:14:23 11571 uid=8 gid=12 pid=11571 13:14:23 11571 auxiliary group list: <none> 13:14:23 11571 home=NULL current=/ 13:14:23 11571 set_process_info: 11571 delivering 1MSn7r-0003hN-BG to koshikov.n using local_delivery 13:14:23 11571 local_delivery transport entered 13:14:23 11571 direct command: 13:14:23 11571 argv[0] = /usr/libexec/dovecot/deliver 13:14:23 11571 argv[1] = -e 13:14:23 11571 argv[2] = -d 13:14:23 11571 argv[3] = $local_part@$domain 13:14:23 11571 expanding: $local_part@$domain 13:14:23 11571 result: koshikov.n(a)domain.com 13:14:23 11571 direct command after expansion: 13:14:23 11571 argv[0] = /usr/libexec/dovecot/deliver 13:14:23 11571 argv[1] = -e 13:14:23 11571 argv[2] = -d 13:14:23 11571 argv[3] = koshikov.n(a)domain.com 13:14:23 11571 Writing message to pipe 13:14:23 11571 writing data block fd=11 size=0 timeout=3600 13:14:23 11573 set_process_info: 11573 reading output from |/usr/libexec/dovecot/deliver -e -d $local_part@$domain 13:14:23 11571 writing data block fd=11 size=814 timeout=3600 13:14:23 11571 writing data block fd=11 size=0 timeout=3600 13:14:23 11571 local_delivery transport yielded 2 13:14:23 11571 search_tidyup called 13:14:23 11570 local_delivery transport returned FAIL for koshikov.n(a)domain.com 13:14:23 11570 post-process koshikov.n(a)domain.com (2) 13:14:23 11570 LOG: MAIN 13:14:23 11570 <koshikov.n(a)domain.com>: local_delivery transport output: Warning: Growing pool 'Plugin strings' with: 1024 13:14:23 11570 LOG: MAIN 13:14:23 11570 ** koshikov.n(a)domain.com F=<> R=ldap_accept T=local_delivery: Child process of local_delivery transport (running command "/usr/libexec/dovecot/deliver -e -d $local_part@$domain") was terminated by signal 11 (Segmentation fault) 13:14:23 11570 >>>>>>>>>>>>>>>> deliveries are done >>>>>>>>>>>>>>>> 13:14:23 11570 changed uid/gid: post-delivery tidying 13:14:23 11570 uid=8 gid=12 pid=11570 13:14:23 11570 auxiliary group list: <none> 13:14:23 11570 set_process_info: 11570 tidying up after delivering 1MSn7r-0003hN-BG 13:14:23 11570 Processing retry items 13:14:23 11570 Succeeded addresses: 13:14:23 11570 koshikov.n(a)domain.com: no retry items 13:14:23 11570 Failed addresses: 13:14:23 11570 Deferred addresses: 13:14:23 11570 koshikov.n(a)domain.com: no retry items 13:14:23 11570 koshikov.n(a)domain.com: no retry items 13:14:23 11570 end of retry processing 13:14:23 11570 LOG: MAIN 13:14:23 11570 Frozen (delivery error message) 13:14:23 11570 delivery deferred: update_spool=1 header_rewritten=0 13:14:23 11570 Writing spool header file 13:14:23 11570 Size of headers = 707 13:14:23 11570 end delivery of 1MSn7r-0003hN-BG 13:14:23 11570 search_tidyup called 13:14:23 11570 search_tidyup called 13:14:23 11570 >>>>>>>>>>>>>>>> Exim pid=11570 terminating with rc=0 >>>>>>>>>>>>>>>> dovecot-deliver log, while trying to deliver this message: ==> /var/log/dovecot/dovecot-deliver.log <== Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Loading modules from directory: /usr/lib/dovecot/lda Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Module loaded: /usr/lib/dovecot/lda/lib10_quota_plugin.so Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Module loaded: /usr/lib/dovecot/lda/lib11_trash_plugin.so Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Module loaded: /usr/lib/dovecot/lda/lib20_expire_plugin.so Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Module loaded: /usr/lib/dovecot/lda/lib90_sieve_plugin.so Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: auth input: uid=8 Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: auth input: gid=12 Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: auth input: home=/data/mail/domain.com/koshikov.n Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Warning: Growing pool 'userdb lookup replys' with: 1024 Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: auth input: mail=maildir:/data/mail/domain.com/koshikov.n/data Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Quota root: name=Mailbox quota backend=maildir args= Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Quota rule: root=Mailbox quota mailbox=* bytes=524288000 messages=0 Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Quota rule: root=Mailbox quota mailbox=Trash bytes=52428800 (10%) messages=0 Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Quota warning: bytes=498073600 (95%) messages=0 command=/etc/dovecot/plugins/quota_warning.sh 95 Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Warning: Growing pool 'Expire pool' with: 1024 Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Namespace: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: maildir: data=/data/mail/domain.com/koshikov.n/data Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: maildir++: root=/data/mail/domain.com/koshikov.n/data, index=, control=, inbox=/data/mail/domain.com/koshikov.n/data Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: Namespace: type=public, prefix=#Public/, sep=/, inbox=no, hidden=no, list=1, subscriptions=no Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: maildir: data=/var/mail/public Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: maildir++: root=/var/mail/public, index=, control=, inbox= Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Warning: Growing pool 'mail user' with: 1024 Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: trash plugin: Added 'Trash' with priority 1 Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: trash plugin: Added 'Spam' with priority 2 Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: expire: No expiring in mailbox: Dovecot Delivery Mail Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: sieve: using sieve path for user's script: /data/mail/domain.com/koshikov.n/.dovecot.sieve Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: sieve: executed before user's script(1): /etc/dovecot/sieve/default.sieve Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: sieve: opening script /etc/dovecot/sieve/default.sieve Jul 20 13:19:53 deliver(koshikov.n(a)domain.com): Info: sieve: opening script /data/mail/domain.com/koshikov.n/.dovecot.sieve In system log I get: deliver[9476]: segfault at 0 ip b7e16713 sp bfa0ba2c error 4 in libc-2.9.so[b7da4000+13d000] deliver[11572]: segfault at 0 ip b7f41713 sp bfb38b4c error 4 in libc-2.9.so[b7ecf000+13d000] deliver[12433]: segfault at 0 ip b7e7e713 sp bfb73b8c error 4 in libc-2.9.so[b7e0c000+13d000] dovecot -n: # 1.2.1: /etc/dovecot/dovecot.conf Warning: Growing pool 'settings' with: 8192 # OS: Linux 2.6.26-gentoo-r4 i686 Gentoo Base System release 1.12.11.1 log_path: /var/log/dovecot/dovecot-error.log info_log_path: /var/log/dovecot/dovecot.log protocols: imaps managesieve ssl_cert_file: /etc/ssl/dovecot/imaps.crt ssl_key_file: /etc/ssl/dovecot/imaps.key disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(managesieve): /usr/libexec/dovecot/managesieve-login login_greeting: Server ready. login_processes_count: 10 login_max_processes_count: 512 first_valid_uid: 8 last_valid_uid: 8 first_valid_gid: 12 last_valid_gid: 12 mail_debug: yes mail_drop_priv_before_exec: yes mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(managesieve): /usr/libexec/dovecot/managesieve mail_plugins(default): quota imap_quota trash expire zlib autocreate mail_plugins(imap): quota imap_quota trash expire zlib autocreate mail_plugins(managesieve): mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(managesieve): /usr/lib/dovecot/managesieve imap_client_workarounds(default): delay-newmail imap_client_workarounds(imap): delay-newmail imap_client_workarounds(managesieve): namespace: type: private separator: / inbox: yes list: yes subscriptions: yes namespace: type: public separator: / prefix: #Public/ location: maildir:/var/mail/public list: yes auth default: mechanisms: plain login cache_size: 10240 cache_negative_ttl: 0 user: dovecot_auth master_user_separator: * worker_max_count: 50 passdb: driver: passwd-file args: /etc/dovecot/passdb/master.pwd master: yes passdb: driver: passwd-file args: /etc/dovecot/passdb/users.pwd passdb: driver: ldap args: /etc/dovecot/dovecot-ldap.conf userdb: driver: prefetch userdb: driver: ldap args: /etc/dovecot/dovecot-userdb-ldap.conf userdb: driver: passwd-file args: /etc/dovecot/passdb/users.pwd socket: type: listen client: path: /var/run/dovecot/auth-client mode: 432 user: mail group: dovecot_auth master: path: /var/run/dovecot/auth-master mode: 384 user: mail group: mail plugin: quota_warning: storage=95%% /etc/dovecot/plugins/quota_warning.sh 95 quota: maildir:Mailbox quota quota_rule: *:storage=500M quota_rule2: Trash:storage=10%% trash: /etc/dovecot/plugins/dovecot-trash.conf expire: Trash 30 Spam 30 expire_dict: proxy::expire autocreate: Drafts autocreate2: Sent autocreate3: Spam autocreate4: Trash autosubscribe: Drafts autosubscribe2: Sent autosubscribe3: Spam autosubscribe4: Trash sieve: ~/.dovecot.sieve sieve_dir: ~/sieve sieve_extensions: +imapflags +notify sieve_before: /etc/dovecot/sieve/default.sieve dict: expire: sqlite:/etc/dovecot/plugins/expire.conf Linux: Gentoo x86 1.12.11.1 filesystem: ext3 I you need any addition information, please tell.

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[Dovecot] quota bug
by Amr Shahin 21 Jul '09

21 Jul '09

Hello, please find this log from dovecot server * OK Dovecot ready. 1 login amrtest3 ********* 1 OK Logged in. 1 getquotaroot inbox * QUOTAROOT "inbox" 1 OK Getquotaroot completed. 1 logout * BYE Logging out 1 OK Logout completed. the user has unlimited quota, the back end authentication is mysql database, here is the record from the database account quota amrtest3 0 ... thanks for your help

2 2

[Dovecot] vpopmail and shared mailbox
by David Fuchs 21 Jul '09

21 Jul '09

hi all, I'm a long time courier-imap user and just switched to dovecot-1.2.1. my MTA is qmail and all user accounts are virtual vpopmail users. getting dovecot to work was mostly painless, but I am desperately trying to share a user's mailbox and can't seem to figure out how. unfortunately the documentation is not very helpful. I am trying to share the mailbox /home/vpopmail/domains/ example.com/someuser/Maildir here's what I put in dovecot.conf: namespace shared { separator = . prefix = shared.%%u. location = maildir:/home/vpopmail/domains/%%d/%%n/Maildir:INDEX=~/Maildir/shared/%%u subscriptions = no list = yes } I then logged in as someuser and did a "setacl anyone Inbox lrip". /home/vpopmail/domains/example.com/shared-mailboxes.db now contains an entry shared/shared-boxes/anyone/someuser(a)example.com 1 and /home/vpopmail/domains/example.com/someuser/Maildir/dovecot-acl has anyone ilpr however, when I connect to the server, the client does not see the "shared" namespace. also, dovecot seems to be creating empty shared-mailboxes.db in /home/vpopmail/domains/example/ (missing .com!). I'm very confused at this point, but I'm sure someone has gotten this to work and can help me out. fwiw, the output of dovecot -n is appended. thanks! - Dave.

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[Dovecot] Problem with quota-dict
by Sascha Bendix 20 Jul '09

20 Jul '09

Hi, I wanted to migrate a mailserver from cyrus to dovecot. The new setup was using postfixadmin let the domain admins configure the hostet domains. To view the used quota in postfixadmin the usage of the quota dict backend is required. I have configured it according to the wiki but everytime I connect I get a sucessfully login and then every next command hangs. It seems to me, that the dict process itself is hanging. I even startet with a fresh mail box. The only way to login with my setup is to disable quota for the used protocol. My system is debian lenny based with dovecot 1.0.15 and PostgreSQL 8.3.7 as database server. My config is the following: # 1.0.15: /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S protocols: imaps pop3s managesieve listen: [::] ssl_cert_file: /etc/ssl/certs/server.crt ssl_key_file: /etc/ssl/private/server.key 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 login_greeting: Ready. first_valid_uid: 8 last_valid_uid: 8 mail_privileged_group: mail mail_location: maildir:/var/mail/%d/%n mail_debug: yes 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_plugins(default): quota imap_quota acl mail_plugins(imap): quota imap_quota acl mail_plugins(pop3): quota mail_plugins(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 pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %v.%u pop3_uidl_format(managesieve): sieve_storage(default): sieve_storage(imap): sieve_storage(pop3): sieve_storage(managesieve): /var/mail/sieve/%d/%n sieve(default): sieve(imap): sieve(pop3): sieve(managesieve): /var/mail/sieve/%d/%n.sieve namespace: type: private inbox: yes auth default: user: dovecot-auth passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 master: path: /var/run/dovecot/auth-master mode: 384 user: mail group: mail plugin: quota: dict:storage=10240 proxy::quota acl: vfile:/etc/dovecot/acls sieve: /var/mail/sieve/%d/%n.sieve dict: quota: pgsql:/etc/dovecot/dovecot-dict-quota.conf My /etc/dovecot/dovecot-dict-quota.conf: connect = host=localhost dbname=mail user=mail password=dovecot-passwort table = quota select_field = current where_field = path username_field = username My database table: CREATE TABLE quota ( username character varying(255) NOT NULL, path character varying(100) NOT NULL, "current" integer, CONSTRAINT quota_pkey PRIMARY KEY (username, path) ) WITH (OIDS=FALSE); ALTER TABLE quota OWNER TO mail; -- Trigger: mergequota on quota -- DROP TRIGGER mergequota ON quota; CREATE TRIGGER mergequota BEFORE INSERT ON quota FOR EACH ROW EXECUTE PROCEDURE merge_quota(); connect = host=localhost dbname=mail user=dovecot password=jianueyeePeev5o table = quota select_field = current where_field = path username_field = username My dovecot logfile with mail_debug=yes: Jul 20 21:06:17 skippy dovecot: Dovecot v1.0.15 starting up Jul 20 21:06:17 skippy dovecot: auth(default): pgsql: Connected to mail Jul 20 21:07:07 skippy dovecot: POP3(user(a)domain.tld): Loading modules from directory: /usr/lib/dovecot/modules/pop3 Jul 20 21:07:07 skippy dovecot: POP3(user(a)domain.tld): Module loaded: /usr/lib/dovecot/modules/pop3/lib10_quota_plugin.so Jul 20 21:07:07 skippy dovecot: POP3(user(a)domain.tld): Effective uid=8, gid=8 Jul 20 21:07:07 skippy dovecot: POP3(user(a)domain.tld): maildir: data=/var/mail/domain.tld/user Jul 20 21:07:07 skippy dovecot: POP3(user(a)domain.tld): maildir: root=/var/mail/domain.tld/user, index=/var/mail/domain.tld/user, control=, inbox= Jul 20 21:07:07 skippy dovecot: POP3(user(a)domain.tld): dict quota: uri = proxy::quota Jul 20 21:07:07 skippy dovecot: POP3(user(a)domain.tld): dict quota: byte limit = 52428800 Jul 20 21:07:07 skippy dovecot: POP3(user(a)domain.tld): dict quota: count limit = 0 Jul 20 21:07:07 skippy dovecot: pop3-login: Login: user=<user(a)domain.tld>, method=PLAIN, rip=::ffff:1.2.3.4, lip=::ffff:1.2.3.5, TLS Jul 20 21:07:07 skippy dovecot: dict: pgsql: Connected to mail Jul 20 21:07:07 skippy dovecot: dict: Timeout leak: 0x40e150 Jul 20 21:07:07 skippy dovecot: dict: WARNING: there is no transaction in progress I'm a little bit clueless because there is no significant output (even in strace). Can you please give me a clue? Regards, Sascha Bendix

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[Dovecot] Filesystem size limitation?
by Tommy Ng 20 Jul '09

20 Jul '09

I'm new to dovecot, nice to meet you guys here. Referring to Redhat, 32bit Linux v5 GFS supports 16TB filesystem size while 64bit version supports 8 EB (1EB = 1024TB) size. Reference: http://www.redhat.com/rhel/compare/ My question is, any limitation on a single filesystem (Redhat GFS) that Dovecot can handle? or Dovecot depends only on the limitation of OS? Thanks in advance! MJK Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多!

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