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[Dovecot] UTF-8 mailbox names in filesystem
by Timo Sirainen 13 Nov '09

13 Nov '09

Currently mailbox names are stored in IMAP's modified-UTF-7 format in filesystem. I was wondering about changing this in v2.0. The default would still be to use mUTF-7 in filesystem, but just adding :UTF8 or something to mail_location could enable UTF-8. Any thoughts? Could this be dangerous somehow? UTF-8 enables a lot of weird characters, perhaps no one really wants to see them on filesystem since there's no way to type the characters? But for small systems this probably isn't a problem.

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[Dovecot] Postfix and Dovecot SASL
by Rene Bakkum 12 Nov '09

12 Nov '09

Hello all, I am struggeling to get my Dovecot SASL to work within postfix. I have used the configuration example listed on the main-site of dovecot and it basically isn't giving me any success at all. I am probably missing something easy, but after spending a few days testing and walking through everything I could think about I thought figured it was better to ask :) Hope someone can point me to the right direction. My setup is that I have installed Ubuntu 9.04 (64bit), postfix and dovecot linked to a MySQL database. The services are using maildirs which are stored locally (no NFS). Postfix is using the LDA from dovecot to deliver the mail and dovecot is used for IMAP and POP3. This is working and no problems at all so far. The problem starts when I just want to enable the SASL authentication from Dovecot. I used the 'guide' posted on http://wiki.dovecot.org/HowTo/PostfixAndDovecotSASL When I try to telnet to port 25 (smtp) than I doesn't looks like the SASL is working... 220 mail003 ESMTP Postfix (Ubuntu) ehlo localhost 250-mail003 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN Anything I missed in my configuration from either postfix/dovecot? root@mail003:/etc/postfix# dovecot --version 1.1.11 root@mail003:~# dpkg-query -l postfix +++-==============-==============-============================================ ii postfix 2.5.5-1.1 High-performance mail transport agent Here are my configurations of both: root@mail003:/etc/postfix# dovecot -n # 1.1.11: /etc/dovecot/dovecot.conf # OS: Linux 2.6.28-16-server x86_64 Ubuntu 9.04 ext4 log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap pop3 imaps pop3s managesieve ssl_cert_file: /etc/ssl/certs/ssl-mail.pem ssl_key_file: /etc/ssl/private/ssl-mail.key ssl_cipher_list: ALL:!LOW:!SSLv2:ALL:!aNULL:!ADH:!eNULL:!EXP:RC4+RSA:+HIGH:+MEDIUM 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_capability(default): yes login_greeting_capability(imap): yes login_greeting_capability(pop3): no login_greeting_capability(managesieve): no mail_max_userip_connections(default): 10 mail_max_userip_connections(imap): 10 mail_max_userip_connections(pop3): 3 mail_max_userip_connections(managesieve): 10 mail_privileged_group: mail mail_uid: 5000 mail_gid: 5000 mail_location: maildir:/home/vmail/%d/%n/.Maildir 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 imap_client_workarounds(default): outlook-idle delay-newmail imap_client_workarounds(imap): outlook-idle delay-newmail imap_client_workarounds(pop3): imap_client_workarounds(managesieve): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh pop3_client_workarounds(managesieve): sieve_storage(default): sieve_storage(imap): sieve_storage(pop3): sieve_storage(managesieve): ~/sieve sieve(default): sieve(imap): sieve(pop3): sieve(managesieve): ~/.dovecot.sieve auth default: mechanisms: plain login 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/dovecot-auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: vmail group: vmail root@mail003:/etc/postfix# postconf | grep sasl broken_sasl_auth_clients = yes cyrus_sasl_config_path = lmtp_sasl_auth_cache_name = lmtp_sasl_auth_cache_time = 90d lmtp_sasl_auth_enable = no lmtp_sasl_auth_soft_bounce = yes lmtp_sasl_mechanism_filter = lmtp_sasl_password_maps = lmtp_sasl_path = lmtp_sasl_security_options = noplaintext, noanonymous lmtp_sasl_tls_security_options = $lmtp_sasl_security_options lmtp_sasl_tls_verified_security_options = $lmtp_sasl_tls_security_options lmtp_sasl_type = cyrus proxy_write_maps = $smtp_sasl_auth_cache_name $lmtp_sasl_auth_cache_name send_cyrus_sasl_authzid = no smtp_sasl_auth_cache_name = smtp_sasl_auth_cache_time = 90d smtp_sasl_auth_enable = no smtp_sasl_auth_soft_bounce = yes smtp_sasl_mechanism_filter = smtp_sasl_password_maps = smtp_sasl_path = smtp_sasl_security_options = noplaintext, noanonymous smtp_sasl_tls_security_options = $smtp_sasl_security_options smtp_sasl_tls_verified_security_options = $smtp_sasl_tls_security_options smtp_sasl_type = cyrus smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_exceptions_networks = smtpd_sasl_local_domain = $myhostname smtpd_sasl_path = private/dovecot-auth smtpd_sasl_security_options = noanonymous smtpd_sasl_tls_security_options = $smtpd_sasl_security_options smtpd_sasl_type = dovecot Any ideas? Thanks for the response. - Rene

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[Dovecot] dovecot-2.0.alpha2 doesn't compile on Mac OS X
by Mike Abbott 12 Nov '09

12 Nov '09

Howdy, dovecot-2.0.alpha2 doesn't compile on Mac OS X. First, trivially, there's a typo in array.h: --- a/src/lib/array.h 2009-10-08 10:04:35.000000000 -0500 +++ b/src/lib/array.h 2009-10-27 10:35:58.000000000 -0500 @@ -72,7 +72,7 @@ (elem)++) # define array_foreach_modifiable(array, elem) \ for (elem = ARRAY_TYPE_CAST_MODIFIABLE(array) \ - buffer_get_modifiable_data((array)- >arr.buffer, NULL)) + \ + buffer_get_modifiable_data((array)->arr.buffer, NULL) + \ (array)->arr.buffer->used; \ elem != CONST_PTR_OFFSET(*(array)->v, (array)->arr.buffer- >used); \ (elem)++) Second, Mac OS X can't link loadable modules against other loadable modules (http://www.finkproject.org/doc/porting/porting.en.html#shared.lib-and-mod ): --- a/src/plugins/fts-squat/Makefile.am 2009-10-18 16:28:45.000000000 -0500 +++ b/src/plugins/fts-squat/Makefile.am 2009-10-27 10:35:58.000000000 -0500 @@ -10,8 +10,9 @@ module_LTLIBRARIES = \ lib21_fts_squat_plugin.la -lib21_fts_squat_plugin_la_LIBADD = \ - ../fts/lib20_fts_plugin.la +# Apple can't link loadable modules against other loadable modules +#lib21_fts_squat_plugin_la_LIBADD = \ +# ../fts/lib20_fts_plugin.la lib21_fts_squat_plugin_la_SOURCES = \ fts-squat-plugin.c \ --- a/src/plugins/imap-acl/Makefile.am 2009-10-09 13:02:15.000000000 -0500 +++ b/src/plugins/imap-acl/Makefile.am 2009-10-27 10:35:58.000000000 -0500 @@ -14,8 +14,9 @@ imap_module_LTLIBRARIES = \ lib02_imap_acl_plugin.la -lib02_imap_acl_plugin_la_LIBADD = \ - ../acl/lib01_acl_plugin.la +# Apple can't link loadable modules against other loadable modules +#lib02_imap_acl_plugin_la_LIBADD = \ +# ../acl/lib01_acl_plugin.la lib02_imap_acl_plugin_la_SOURCES = \ imap-acl-plugin.c --- a/src/plugins/imap-quota/Makefile.am 2009-10-09 13:02:15.000000000 -0500 +++ b/src/plugins/imap-quota/Makefile.am 2009-10-27 10:35:58.000000000 -0500 @@ -13,8 +13,9 @@ imap_module_LTLIBRARIES = \ lib11_imap_quota_plugin.la -lib11_imap_quota_plugin_la_LIBADD = \ - ../quota/lib10_quota_plugin.la +# Apple can't link loadable modules against other loadable modules +#lib11_imap_quota_plugin_la_LIBADD = \ +# ../quota/lib10_quota_plugin.la lib11_imap_quota_plugin_la_SOURCES = \ imap-quota-plugin.c --- a/src/plugins/mail-log/Makefile.am 2009-10-09 13:02:15.000000000 -0500 +++ b/src/plugins/mail-log/Makefile.am 2009-10-27 10:35:58.000000000 -0500 @@ -13,8 +13,9 @@ module_LTLIBRARIES = \ lib20_mail_log_plugin.la -lib20_mail_log_plugin_la_LIBADD = \ - ../notify/lib15_notify_plugin.la +# Apple can't link loadable modules against other loadable modules +#lib20_mail_log_plugin_la_LIBADD = \ +# ../notify/lib15_notify_plugin.la lib20_mail_log_plugin_la_SOURCES = \ mail-log-plugin.c --- a/src/plugins/trash/Makefile.am 2009-10-09 13:02:15.000000000 -0500 +++ b/src/plugins/trash/Makefile.am 2009-10-27 10:35:58.000000000 -0500 @@ -10,8 +10,9 @@ module_LTLIBRARIES = \ lib11_trash_plugin.la -lib11_trash_plugin_la_LIBADD = \ - ../quota/lib10_quota_plugin.la +# Apple can't link loadable modules against other loadable modules +#lib11_trash_plugin_la_LIBADD = \ +# ../quota/lib10_quota_plugin.la lib11_trash_plugin_la_SOURCES = \ trash-plugin.c Third, for cross-compiling the value of WORDS_BIGENDIAN needs to be tested, not its presence: --- a/src/lib-index/mail-transaction-log-file.c 2009-10-15 21:26:13.000000000 -0500 +++ b/src/lib-index/mail-transaction-log-file.c 2009-10-27 10:35:58.000000000 -0500 @@ -189,7 +189,7 @@ hdr->hdr_size = sizeof(struct mail_transaction_log_header); hdr->indexid = log->index->indexid; hdr->create_stamp = ioloop_time; -#ifndef WORDS_BIGENDIAN +#if !WORDS_BIGENDIAN hdr->compat_flags |= MAIL_INDEX_COMPAT_LITTLE_ENDIAN; #endif @@ -404,7 +404,7 @@ /* we have compatibility flags */ enum mail_index_header_compat_flags compat_flags = 0; -#ifndef WORDS_BIGENDIAN +#if !WORDS_BIGENDIAN compat_flags |= MAIL_INDEX_COMPAT_LITTLE_ENDIAN; #endif if (file->hdr.compat_flags != compat_flags) {

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[Dovecot] multiple connections per imap/pop3 process in 2.0
by Mike Abbott 12 Nov '09

12 Nov '09

When I set this in master.conf: service imap { service_count = 5 } I see this error when two imap users log in: Nov 11 16:54:16 server dovecot[5432]: imap-login: Login: user=<user1>, method=PLAIN, rip=10.100.0.84, lip=10.80.0.163, pid=5573 Nov 11 16:54:31 server dovecot[5432]: imap-login: Login: user=<user2>, method=PLAIN, rip=::1, lip=::1, secured, pid=5573 Nov 11 16:54:31 server dovecot[5432]: imap(pid 5573 user user2): Fatal: setgid(2002) failed with euid=2001(user1), gid=2001, egid=2001: Operation not permitted Then both users are logged out. Is there another setting I have to change to enable multiple connections per imap/pop3 process in dovecot-2.0, or does it just not work yet? I tried changing client_limit=5 but that had no effect. (I suggest that master.conf needs more documentation.) Thanks.

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[Dovecot] Sluggish log process
by Pascal Volk 12 Nov '09

12 Nov '09

After the first `dovecot reload` the initial log process will not terminate immediately. The master logs: Nov 11 23:30:04 master: Warning: SIGHUP received - reloading configuration Nov 11 23:31:04 master: Warning: Processes aren't dying after reload, sending SIGTERM. Nov 11 23:32:04 master: Warning: Processes aren't dying after reload, sending SIGTERM. Nov 11 23:32:04 log: Warning: Killed with signal 15 (by pid=21639 uid=0 code=kill) With succeeding `dovecot reload`s the current log process terminates immediately Regards, Pascal -- The trapper recommends today: 5e1f1e55.0931602(a)localdomain.org

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[Dovecot] patch for 2.0.alpha3 crash
by Mike Abbott 11 Nov '09

11 Nov '09

Dovecot-2.0.alpha3 crashes on startup for me on Mac OS X. It hits a segmentation fault at: 0 libdovecot.0.dylib 0x0000000100025e9f master_service_set_die_with_master + 10 1 libdovecot.0.dylib 0x0000000100025d93 master_service_settings_read + 1818 2 libdovecot.0.dylib 0x0000000100025e63 master_service_settings_read_simple + 110 3 dovecot 0x00000001000021d3 main + 846 4 dovecot 0x0000000100001650 start + 52 This appears to be because lib-master's master_service global (in the libdovecot shared library) is different from master's master_service global (in the dovecot binary). Here's a patch to fix it: --- a/src/master/main.c 2009-11-09 19:53:11.000000000 -0600 +++ b/src/master/main.c 2009-11-11 14:12:55.000000000 -0600 @@ -35,7 +35,6 @@ #define MASTER_PID_FILE_NAME "master.pid" #define SERVICE_TIME_MOVED_BACKWARDS_MAX_THROTTLE_SECS (60*3) -struct master_service *master_service; uid_t master_uid; gid_t master_gid; bool core_dumps_disabled;

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[Dovecot] v2.0.tip master: service(auth): kill(pid, SIGINT) failed: Operation not permitted
by Pascal Volk 11 Nov '09

11 Nov '09

Hi Timo, I've configured the user nobody for the the service auth. doveconf -n # 2.0.alpha3: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.30-1-amd64 x86_64 Debian squeeze/sid … service auth { user = nobody } … The other processes are executed by root (or logged in user): root 8758 0.0 0.0 2604 1052 ? Ss 07:21 0:00 /usr/local/sbin/dovecot root 8759 0.0 0.0 2308 808 ? S 07:21 0:00 \_ dovecot/anvil root 10869 0.0 0.0 2308 996 ? S 08:18 0:00 \_ dovecot/log nobody 10884 0.0 0.0 7292 2176 ? S 08:18 0:00 \_ dovecot/auth Logins are not a problem. But since the last logout, Dovceot logs once a minute: Nov 11 hh:mm:23 el-negro dovecot: master: service(auth): kill(10884, SIGINT) failed: Operation not permitted Regards, Pascal -- The trapper recommends today: cafefeed.0931509(a)localdomain.org

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[Dovecot] selective disable_plaintext_auth
by Mariano Absatz 11 Nov '09

11 Nov '09

Hi, I've been using dovecot for some time now, always with the setting: disable_plaintext_auth = yes so that no user can accidentally expose their username/password in the open. However, I'm now trying to configure a webmail client in a nearby server which doesn't support TLS or SSL IMAP connections :-( Is there any way to allow plaintext_auth only for a small set of IP addresses (for what I see in the comment, this is automatic for local addresses, alas, the webmail client is on another host). TIA -- Mariano Absatz - "El Baby" el.baby(a)gmail.com www.clueless.com.ar -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - Theory is when you know something but it doesn't work. - Practice is when something works but you don't know why. - Usually we combine theory and practice: Nothing works and we don't know why. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- * TagZilla 0.066 * http://tagzilla.mozdev.org

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[Dovecot] panic 1.2.7
by Cor Bosman 11 Nov '09

11 Nov '09

Im getting a panic from a specific user: Nov 11 13:53:29 userimap24.xs4all.nl dovecot: IMAP(xxxxxx): Panic: file maildir-uidlist.c: line 1242 (maildir_uidlist_records_drop_expunges): assertion failed: (recs[i]- >uid < rec->uid) Nov 11 13:53:29 userimap24.xs4all.nl dovecot: IMAP(xxxxxx): Raw backtrace: imap [0x4a6c02] -> imap [0x4a6c83] -> imap [0x4a6346] -> imap [0x444d6d] -> imap(maildir_uidlist_sync_finish+0x2d3) [0x445d83] - > imap [0x440d7e] -> imap(maildir_storage_sync_init+0x148) [0x441338] -> imap(mailbox_sync+0x30) [0x46d3b0] -> imap(imap_status_get+0x88) [0x42a9d8] -> imap(cmd_status+0x12f) [0x421e0f] -> imap [0x423b7c] -> imap [0x423c2d] -> imap(client_handle_input+0x45) [0x423da5] -> imap(client_input+0x5f) [0x42473f] -> imap(io_loop_handler_run+0xcb) [0x4aedab] -> imap(io_loop_run+0x18) [0x4ae228] -> imap(main+0x537) [0x42c707] -> /lib/libc.so.6(__libc_start_main+0xe6) [0x7f0cef0471a6] - > imap [0x41c859] Nov 11 13:53:30 userimap24.xs4all.nl dovecot: dovecot: child 3594 (imap) killed with signal 6 (core dumps disabled) 1.2.7, Linux/Debian Lenny, amd64, NFS spool and index. Seems to be happing every few minutes, probably every time they check mail. The command they're sending: A002 STATUS "INBOX" (MESSAGES UNSEEN RECENT) Output doesnt show any result, only their login: A001 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE SORT THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT IDLE CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH STARTTLS AUTH=PLAIN QUOTA] Logged in Regards, Cor

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[Dovecot] System Users with IMAP
by Shane Arnold 11 Nov '09

11 Nov '09

Hi All, Sorry if this is a dumb questions, but what methods are available for retrieving mail for a system user i.e www-data. Basically my setup is just a normal Dovecot-IMAP which is working fine for shell users, but I want to be able to read mail for system users via IMAP. Is this doable? Cheers

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