July 2010 - dovecot - dovecot.org

[Dovecot] imap core dumping on signal 10
by Chris Hoogendyk 25 Jul '10

25 Jul '10

We are just trying to bring up a new server and chose to use Dovecot rather than the uw-imap from our previous servers. At this point I am just testing with some throw away accounts using squirrelmail. I can load my inbox, but then the imap connection is lost. I presume you need some real information to get your teeth into, so this is going to get a little long. I'll give you three things below: 1. a piece of /var/adm/dovecot.log, 2. the output of `dovecot -n`, and then 3. the full gdb … [View More]trace back on the core file. I'm hoping that, aside from there being a bug that causes core dumps, we might have a straightforward misconfiguration that we could fix and have a working installation. All info at end. -- --------------- Chris Hoogendyk - O__ ---- Systems Administrator c/ /'_ --- Biology & Geology Departments (*) \(*) -- 140 Morrill Science Center ~~~~~~~~~~ - University of Massachusetts, Amherst <hoogendyk(a)bio.umass.edu> --------------- Erdös 4 ----------------------------------------------- following is the complete log of the connection ----------------------------------------------- Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] auth(default): client in: AUTH 1 PLAIN service=imap secured lip=127.0.0.1 rip=127.0.0.1 lport=993 rport=65462 resp=AGNocmlzaG8AMG5XMHJEPyE= Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] auth(default): shadow(chrisho,127.0.0.1): lookup Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] auth(default): client out: OK 1 user=chrisho Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] auth(default): master in: REQUEST 1 22961 1 Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] auth(default): passwd(chrisho,127.0.0.1): lookup Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] auth(default): master out: USER 1 chrisho system_groups_user=chrisho uid=2295 gid=102 home=/u1/home/bio/hoogendyk Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] imap-login: Login: user=<chrisho>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): Effective uid=2295, gid=102, home=/u1/home/bio/hoogendyk Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): mbox: data=~/mail:INBOX=/var/mail/chrisho Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): fs: root=/u1/home/bio/hoogendyk/mail, index=, control=, inbox=/var/mail/chrisho Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): Disconnected: Logged out bytes=44/697 Jul 20 17:34:05 imladris dovecot: [ID 583609 local2.info] auth(default): new auth connection: pid=22968 Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] auth(default): client in: AUTH 1 PLAIN service=imap secured lip=127.0.0.1 rip=127.0.0.1 lport=993 rport=65465 resp=AGNocmlzaG8AMG5XMHJEPyE= Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] auth(default): shadow(chrisho,127.0.0.1): lookup Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] auth(default): client out: OK 1 user=chrisho Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] auth(default): master in: REQUEST 2 22959 1 Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] auth(default): passwd(chrisho,127.0.0.1): lookup Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] auth(default): master out: USER 2 chrisho system_groups_user=chrisho uid=2295 gid=102 home=/u1/home/bio/hoogendyk Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] imap-login: Login: user=<chrisho>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): Effective uid=2295, gid=102, home=/u1/home/bio/hoogendyk Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): mbox: data=~/mail:INBOX=/var/mail/chrisho Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): fs: root=/u1/home/bio/hoogendyk/mail, index=, control=, inbox=/var/mail/chrisho Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): Namespace : Using permissions from /u1/home/bio/hoogendyk/mail: mode=0700 gid=-1 Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] auth(default): new auth connection: pid=22970 Jul 20 17:34:06 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): Disconnected: Logged out bytes=386/1304 Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] auth(default): client in: AUTH 1 PLAIN service=imap secured lip=127.0.0.1 rip=127.0.0.1 lport=993 rport=65467 resp=AGNocmlzaG8AMG5XMHJEPyE= Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] auth(default): shadow(chrisho,127.0.0.1): lookup Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] auth(default): client out: OK 1 user=chrisho Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] auth(default): master in: REQUEST 3 22968 1 Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] auth(default): passwd(chrisho,127.0.0.1): lookup Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] auth(default): master out: USER 3 chrisho system_groups_user=chrisho uid=2295 gid=102 home=/u1/home/bio/hoogendyk Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] imap-login: Login: user=<chrisho>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, TLS Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): Effective uid=2295, gid=102, home=/u1/home/bio/hoogendyk Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): mbox: data=~/mail:INBOX=/var/mail/chrisho Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] IMAP(chrisho): fs: root=/u1/home/bio/hoogendyk/mail, index=, control=, inbox=/var/mail/chrisho Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.error] dovecot: child 22971 (imap) killed with signal 10 (core dumped) Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.info] auth(default): new auth connection: pid=22973 Jul 20 17:34:07 imladris dovecot: [ID 583609 local2.warning] dovecot: Killed with signal 15 (by pid=22974 uid=0 code=kill) Jul 20 17:34:08 imladris dovecot: [ID 583609 local2.info] Dovecot v1.2.12 starting up ---------------------------------------------------------------------------------- following is the complete output of ( ulimit -n 1024; /usr/local/sbin/dovecot -n ) ---------------------------------------------------------------------------------- # ( ulimit -n 1024; /usr/local/sbin/dovecot -n ) # 1.2.12: /usr/local/etc/dovecot.conf # OS: SunOS 5.10 sun4v base_dir: /var/run/dovecot/ syslog_facility: local2 protocols: imaps pop3s ssl_listen: * ssl: required ssl_cert_file: /etc/mail/certs/sendmail.pem ssl_key_file: /etc/mail/certs/sendmail.pem 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_greeting: ready. mail_max_userip_connections(default): 10 mail_max_userip_connections(imap): 10 mail_max_userip_connections(pop3): 3 first_valid_uid: 1000 first_valid_gid: 98 mail_privileged_group: mail mail_location: mbox:~/mail:INBOX=/var/mail/%u mail_debug: 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_reuse_xuidl(default): no pop3_reuse_xuidl(imap): no pop3_reuse_xuidl(pop3): yes pop3_uidl_format(default): %08Xu%08Xv pop3_uidl_format(imap): %08Xu%08Xv pop3_uidl_format(pop3): %08Xv%08Xu pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: username_chars: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_ verbose: yes debug: yes debug_passwords: yes passdb: driver: shadow userdb: driver: passwd # -------------------------------------------- and finally the complete trace back from gdb -------------------------------------------- # gdb /usr/local/libexec/dovecot/imap /var/core/core_imladris_imap_2295_102_1279661647_22971 GNU gdb 6.6 Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "sparc-sun-solaris2.10"... Reading symbols from /opt/coolstack/lib/libiconv.so.2...done. Loaded symbols for /opt/coolstack/lib/libiconv.so.2 Reading symbols from /usr/lib/libnsl.so.1...done. Loaded symbols for /usr/lib/libnsl.so.1 Reading symbols from /usr/lib/libsocket.so.1...done. Loaded symbols for /usr/lib/libsocket.so.1 Reading symbols from /usr/lib/librt.so.1...done. Loaded symbols for /usr/lib/librt.so.1 Reading symbols from /usr/lib/libsendfile.so.1...done. Loaded symbols for /usr/lib/libsendfile.so.1 Reading symbols from /usr/lib/libc.so.1...done. Loaded symbols for /usr/lib/libc.so.1 Reading symbols from /lib/libaio.so.1...done. Loaded symbols for /lib/libaio.so.1 Reading symbols from /lib/libmd.so.1...done. Loaded symbols for /lib/libmd.so.1 Reading symbols from /platform/sun4v/lib/libc_psr.so.1...done. Loaded symbols for /platform/SUNW,SPARC-Enterprise-T5220/lib/libc_psr.so.1 Reading symbols from /lib/ld.so.1...done. Loaded symbols for /lib/ld.so.1 Core was generated by `imap'. Program terminated with signal 10, Bus error. #0 0x000aa19c in mail_index_map (index=0x489, type=0) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib-index//mail-index-map.c:502 502 map->hdr = *hdr; (gdb) bt full #0 0x000aa19c in mail_index_map (index=0x489, type=0) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib-index//mail-index-map.c:502 ret = 2 old_map = (struct mail_index_map *) 0x162338 new_map = (struct mail_index_map *) 0x162338 st = {st_dev = 8388615, st_pad1 = {0, 0, 0}, st_ino = 30370, st_mode = 33152, st_nlink = 1, st_uid = 2295, st_gid = 102, st_rdev = 0, st_pad2 = {0, 0}, st_size = 18736, st_atim = {tv_sec = 1279661646, tv_nsec = 937908000}, st_mtim = {tv_sec = 1279661646, tv_nsec = 938505000}, st_ctim = {tv_sec = 1279661646, tv_nsec = 963091000}, st_blksize = 8192, st_blocks = 38, st_fstype = "ufs", '\0' <repeats 12 times>, st_pad4 = {0, 0, 0, 0, 0, 0, 0, 0}} lock_id = 4 file_size = 9223434923765923840 use_mmap = 48 unusable = 116 ret = 112 try = 0 _data_stack_cur_id = 4282335512 index = (struct mail_index *) 0x489 ext_hdr = (const struct mail_index_ext_header *) 0x0 i = 1450816 old_count = 187472 offset = 0 name = 0x70 <Address 0x70 out of bounds> error = 0x7fffffff <Address 0x7fffffff out of bounds> ext_id = 1177832 ext_offset = 1450992 index = (struct mail_index *) 0x70 rec_map = (struct mail_index_record_map *) 0xa0 hdr = (const struct mail_index_header *) 0x0 index = (struct mail_index *) 0x1606d0 handlers = (mail_index_sync_lost_handler_t * const *) 0x0 st = {st_dev = 0, st_pad1 = {0, 0, 0}, st_ino = 0, st_mode = 0, st_nlink = 0, st_uid = 0, st_gid = 0, st_rdev = 0, st_pad2 = {0, 0}, st_size = 0, st_atim = {tv_sec = 0, tv_nsec = 0}, st_mtim = {tv_sec = 0, tv_nsec = 0}, st_ctim = {tv_sec = 0, tv_nsec = 0}, st_blksize = 0, st_blocks = 0, st_fstype = '\0' <repeats 15 times>, st_pad4 = {0, 0, 0, 0, 0, 0, 0, 0}} i = 4290764916 count = 1161 ret = 1452352 try_retry = 160 retry = 222 index = (struct mail_index *) 0x1606d0 hdr = (const struct mail_index_header *) 0x8000000 read_buf = "\a\002\000x\000\000\000?\000\000\000\020\000\000\000\000LF\026N\000\000\000\000K?!?\000\002??\000\000\004\211\000\000\000\000\000\000\004\211\000\000\000\000\000\002??\000\002??\000\000\000\000\000\000\000\002\000\000[?\000\000[?", '\0' <repeats 12 times>, "LE\037@\000\002??", '\0' <repeats 31 times>, "\020\000\000\000\000\000\b\000\b\000\b\000\004mbox\000\000\000\000\000\000\000\000\000?o5LE?/\001\000\000\000\000\002??\b\000\000\000\000\000\000\000\000\000\002\032\000\002??\b\000\000\000\000\000\000\000\000\000\020V\000\002??\b\000\000\000\000\000\000\000\000\000#\237\000\002??\b\000\000\000\000\000\000\000\000\000F"... buf = (const void *) 0x0 data = (void *) 0x0 ret = -4202380 pos = 1161 records_size = 14640 initial_buf_pos = 1450992 records_count = 1161 extra = 3936 pos = 1161 ret = -4202380 #1 0x000a5adc in mail_index_try_open (index=0x160820) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib-index//mail-index.c:300 ret = -1 #2 0x000a5fb0 in mail_index_open (index=0x8a040, flags=17, lock_method=FILE_LOCK_METHOD_DOTLOCK) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib-index//mail-index.c:365 ret = 1969648384 ret = 1443536 created = false #3 0x00089c34 in index_storage_mailbox_open (ibox=0x600) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib-storage/index//index-storage.c:406 storage = (struct mail_storage *) 0x15ad18 index_flags = 17 ret = 565312 cache = (struct mail_cache *) 0x0 cache_env = 0x0 never_env = 0x4000000 <Address 0x4000000 out of bounds> env = 0x100001 "" ---Type <return> to continue, or q <return> to quit--- #4 0x0008a134 in index_storage_mailbox_init (ibox=0x0, name=0x0, flags=0, move_to_memory=false) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib-storage/index//index-storage.c:475 storage = (struct mail_storage *) 0x11 box = (struct mailbox *) 0x0 dir_gid = -1 origin = 0x15b140 "/var/mail/chrisho" dir_origin = 0x15b140 "/var/mail/chrisho" buffer = (buffer_t *) 0x0 buffer = (buffer_t *) 0x1615c8 #5 0x00064ad8 in mbox_alloc_mailbox (storage=0x3164c, index=0x1606d0, name=0x11f8e8 "INBOX", path=0x15b140 "/var/mail/chrisho", flags=0) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib-storage/index/mbox//mbox-storage.c:608 mbox = (struct mbox_mailbox *) 0x0 pool = (pool_t) 0x0 env = 0xffea0950 <Address 0xffea0950 out of bounds> st = {st_dev = 0, st_pad1 = {0, 1374345, -4197072}, st_ino = 0, st_mode = 0, st_nlink = 0, st_uid = 16, st_gid = 1, st_rdev = 4290769692, st_pad2 = {-13172344, -4196552}, st_size = 1007998744081760, st_atim = {tv_sec = -15531076, tv_nsec = -1431216}, st_mtim = {tv_sec = 1431216, tv_nsec = -1431216}, st_ctim = {tv_sec = -1431216, tv_nsec = 1431216}, st_blksize = 1, st_blocks = 4279457448, st_fstype = "\000\025ְ\000\a?|\000\025ְ?7*", st_pad4 = {-15531076, -1447600, 1447600, -1439408, -1439408, 1439408, 1, -15489704}} min_size = 4282335320 #6 0x00066628 in mbox_open (storage=0x15af28, name=0x11f8e8 "INBOX", flags=0) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib-storage/index/mbox//mbox-storage.c:626 _storage = (struct mail_storage *) 0x0 mbox = (struct mbox_mailbox *) 0x0 index = (struct mail_index *) 0x0 path = 0x0 rootdir = 0x0 #7 0x0009863c in mailbox_open (_storage=0xff1392e4, name=0x124b08 "INBOX", input=0x0, flags=0) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib-storage//mail-storage.c:478 storage = (struct mail_storage *) 0x15ad18 box = (struct mailbox *) 0x124b08 #8 0x0002be9c in cmd_select_full (cmd=0x0, readonly=false) at /usr/local/src/dovecot/dovecot-1.2.12/src/imap//cmd-select.c:261 client = (struct client *) 0x15b400 box = (struct mailbox *) 0x1be8b ctx = (struct imap_select_context *) 0xffbff358 args = (const struct imap_arg *) 0x15df10 mailbox = 0x124b08 "INBOX" ret = 0 name = 0x0 seqset = {arr = {buffer = 0x0, element_size = 0}, v = 0x0, v_modifiable = 0x0} uidset = {arr = {buffer = 0x99b88f8, element_size = 240}, v = 0x99b88f8, v_modifiable = 0x99b88f8} count = 1 buffer = (buffer_t *) 0x15ad18 buffer = (buffer_t *) 0x15ad18 buffer = (buffer_t *) 0xff1303bc buffer = (buffer_t *) 0x10 seq_range = (const struct seq_range *) 0x0 uid_range = (const struct seq_range *) 0x0 seq_iter = {array = 0x0, prev_n = 0, prev_idx = 4096} i = 2147483648 seq_count = 10240 uid_count = 1422984 diff = 2147498290 n = 10048 seq = 1366052 buffer = (buffer_t *) 0x15ad18 buffer = (buffer_t *) 0x15ad18 client = (struct client *) 0x15b400 status = {messages = 1366064, recent = 1366052, unseen = 0, uidvalidity = 0, uidnext = 0, first_unseen_seq = 0, highest_modseq = 0, keywords = 0x0, sync_delayed_expunges = 0, nonpermanent_modseqs = 0} open_flags = 0 fetch_ctx = (struct imap_fetch_context *) 0x0 search_args = (struct mail_search_args *) 0x0 #9 0x0002c3b0 in cmd_select (cmd=0xfa2bc) at /usr/local/src/dovecot/dovecot-1.2.12/src/imap//cmd-select.c:388 No locals. #10 0x0002ef20 in client_command_input (cmd=0x6) at /usr/local/src/dovecot/dovecot-1.2.12/src/imap//client.c:612 client = (struct client *) 0x15b400 command = (struct command *) 0x80000000 #11 0x0002f190 in client_command_input (cmd=0x15b688) at /usr/local/src/dovecot/dovecot-1.2.12/src/imap//client.c:661 client = (struct client *) 0x15b400 ---Type <return> to continue, or q <return> to quit--- command = (struct command *) 0x14f940 #12 0x0002f8b4 in client_handle_input (client=0x80000000) at /usr/local/src/dovecot/dovecot-1.2.12/src/imap//client.c:458 ret = false remove_io = false handled_commands = false #13 0x000303e4 in client_input (client=0x0) at /usr/local/src/dovecot/dovecot-1.2.12/src/imap//client.c:753 cmd = (struct client_command_context *) 0x707 output = (struct ostream *) 0x15b600 bytes = 21 #14 0x000fc2e8 in io_loop_handler_run (ioloop=0x0) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib//ioloop-poll.c:203 ctx = (struct ioloop_handler_context *) 0x159318 pollfd = (struct pollfd *) 0x159b28 tv = {tv_sec = 1799, tv_usec = 999491} io = (struct io_file *) 0x158488 t_id = 2 msecs = 288 ret = 1 call = true #15 0x000fb680 in io_loop_run (ioloop=0xffbffa3e) at /usr/local/src/dovecot/dovecot-1.2.12/src/lib//ioloop.c:335 No locals. #16 0x0003c190 in main (argc=0, argv=0x1, envp=0x0) at /usr/local/src/dovecot/dovecot-1.2.12/src/imap//main.c:327 version = 0x80000000 <Address 0x80000000 out of bounds> plugin_dir = 0x14f400 "" user = 0x3b800 "\232 " env = 0xffbff808 "" client = (struct client *) 0x14f400 output = (struct ostream *) 0x158280 user = (struct mail_user *) 0x1 username = 0xffbffa3e "A001" home = 0x14d800 "" str = 0x15a6c8 "" tag = 0x14f400 "" _data_stack_cur_id = 0 buf = (buffer_t *) 0x15b400 list = (struct client_workaround_list *) 0x1 env = 0x5 <Address 0x5 out of bounds> str = (const char * const *) 0x14f730 (gdb) quit # -------------- and that's all -------------- [View Less]

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[Dovecot] v1.2.13 released
by Timo Sirainen 25 Jul '10

25 Jul '10

http://dovecot.org/releases/1.2/dovecot-1.2.13.tar.gz http://dovecot.org/releases/1.2/dovecot-1.2.13.tar.gz.sig This release fixes a bug in ACL plugin, which could be considered a security bug: If Maildir is used with default settings (INBOX is same as Maildir root dir) and user set some ACLs to INBOX, those ACLs were copied to all newly created mailboxes. This should have been done only for "default ACLs", but with Maildir the INBOX directory is the same as the default ACL directory, so this … [View More]

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Re: [Dovecot] (Single instance) attachment storage
by Damon Atkins 25 Jul '10

25 Jul '10

Just keep in mine Signed Emails, the email contents needs to be present back to the client as it came, so the client says the email has not been altered.

2 1

[Dovecot] Unknown password scheme SSHA512
by Patrick Westenberg 24 Jul '10

24 Jul '10

Hello, I installed dovecot via Debians apt package manager. The passwords are stored as SHA256 hash in a PostgreSQL database. default_pass_scheme in dovecot-sql.conf is set to SHA256. However, smtp-auth fails. Jul 24 00:31:07 smtp01 dovecot: auth(default): sql(mail(a)jasbafliesen.de): Unknown password scheme SHA256 Can anybody help me? Regards Patrick

2 2

Re: [Dovecot] SSL / TLS Problem
by Leander S. 23 Jul '10

23 Jul '10

Am 23.07.10 02:59, schrieb Andrew Bruce: > eel free to post this to the running conversation on the list (strip my > email address from this email though please) The issue was a case sensitive typo. When Setting up your Thunderbird don't type in eMail Addresses & Usernames including uppercase letters! DON'T: User(a)Domain.tld BUT therefore: user(a)domain.tld I faced that Problem only when I was using dyndns as domain service provider.

3 5

[Dovecot] Shared folders issue
by Emmanuel Gonzalez Carmona 23 Jul '10

23 Jul '10

Hello guys, I have an issue with shared folders: 1) The USERA shares his INBOX with USERB 2) USERB subscribes the USERA share without problems. 3) USERA deletes all his / or some directories from his INBOX (Trash, Drafts and Sent) 4) USERA logouts and makes login, so dovecot recreates the folders. 5) USERB gains access to subscrive those folders (Trash, Drafts and Sent) this is my namespace configuration: ... namespace private { separator = / prefix = inbox = yes #list = yes … [View More]

2 1

[Dovecot] Go Away Message after the first successful login on proxy server
by Tomislav Mihalicek 23 Jul '10

23 Jul '10

hello i have a dovecot 1.2.11 and i have implementation of 2 dovecot machines, one proxy one storage part. everything is working fine, i only have one question regarding the message that should go away after the first successful login on proxy server. how to remove it on proxy server? May 7 16:04:19 proxy-server dovecot: pop3-login: proxy(tmihal(a)example.com): started proxying to 192.168.1.100:110: user=<tmihal(a)example.com>, method=PLAIN, rip=192.168.22.222, lip=192.168.1.100:109 [… [View More]

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[Dovecot] dovecot director service
by Xavier Pons 23 Jul '10

23 Jul '10

hi, we are using the dovecot-rc1 version, and we are testing the director service, as there is little documentation on this service, a pair of questions.. if i'm not wrong, the proxy_maybe it's not implemented, yet? will be soon? this limitation does not allow use the same two directors servers like mail backend servers? the fairlure of one director server it's automatically detected or require manual intervention? thanks and sorry for so many questions... Xavier

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[Dovecot] Doveadm protocol for parallel user processing
by Timo Sirainen 23 Jul '10

23 Jul '10

A lot of doveadm commands process users' mails. They can optionally process either a single user or multiple users (e.g. -A = all, -u '*(a)domain.org'). For example to expunge old mails from everyone's Trash, you'd use: doveadm expunge -A mailbox Trash savedbefore 30d The problem is, this doesn't work with the new director way of doing proxying. Only a single server can access a user's mails safely, so this command can't be run safely if there are multiple mail servers. It's also a bit … [View More]problematic for regular proxying, but it's especially problematic with director: Since users aren't permanently assigned anywhere, it's not even possible to build a user <-> host mapping and run the command only for those users in their assigned server. First I started thinking about adding another lib-storage backend that supports proxying to another server, maybe via IMAP or maybe via another protocol. Maybe I should do that some day anyway, but it seems a bit complex for this task. Then I also realized that even if all users are on local server, it would probably finish faster if doveadm could handle users in parallel in separate processes (due to disk I/O latencies and maybe other latencies). So, it seems like it would be a good idea to make doveadm internally a client/server architecture. When you start doveadm, it would be only the "brain" part, which connects to the worker doveadms either via local UNIX socket or to remote servers. Admin could configure how many doveadm worker processes the brain should connect per server (could be a per-server setting). So, what's needed to make this happen? 1. The actual client/server split and the protocol. Probably can be really simple and won't be anything interesting. Or maybe it becomes more interesting once I start thinking about it more, we'll see. :) 2. Authentication. 3. TLS-protection? After merging code from dovecot-2.0-sslstream branch this should be pretty easy. Although Dovecot should finally then add support for checking that CommonName/etc match the server name. Authentication -------------- For local UNIX sockets that are 0600 root, the authentication wouldn't be necessary. It could internally check that if the listener socket has these permissions, it would just announce that doveadm is already authenticated. Otherwise, and especially for TCP connections, there should be authentication. I was thinking about using already existing master users for this. Doveadm client says "I'm <masteruser>, my password is <pass>, and I want to access <user>'s mails". Auth process does the authentication and replies either success or failure, just like for similar IMAP/POP3/etc logins. It's possible to restrict what users a master user can log in as, like admin(a)domain.org could only log in as *(a)domain.org. This means that you could also enable doveadm protocol for external users, and let the domain administrators use doveadm directly to manage their own domain's users. PLAIN authentication mechanism would be easy to support. But this might be a good time to also introduce client side SASL library to Dovecot to support other auth mechanisms. But then again, maybe it doesn't really matter.. Privilege dropping ------------------ I hate it that with multiple UIDs doveadm processes currently have to be run as root and they only temporarily drop privileges. With client/server split it would be possible to get rid of this. Each doveadm worker process would then handle only a single user and then exit. This would be optional similar to how login processes are now, e.g.: service doveadm { # 1 = default = one user access per process, 0 = unlimited user accesses service_count = 1 } LMTP privilege dropping ----------------------- Completely unrelated to doveadm, but due to the above doveadm privilege dropping thinking I also started thinking about LMTP. It's also annoying that it runs as root, and only temporarily drops privileges. It could also avoid this by saving a mail only to a single user per process. The problem is that there can be multiple RCPT TO:s in a same session, but this can be handled by treating them similarly than when using LMTP proxying: Just connect to localhost again and proxy the mail there for each user separately. This could also be optionally done only when the process UID differs from the destionation user's UID. When? ----- These are too invasive changes to v2.0, so I guess they'll wait until v2.1. Luckily there won't be any hugely destabilizing changes going into v2.1, so maybe v2.1.0 release won't be too many months after v2.0.0. :) [View Less]

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[Dovecot] managesieve login fails
by Leander S. 23 Jul '10

23 Jul '10

Hi, when I try to make use of the managesieve capability maillog always shows: server dovecot: managesieve-login: Panic: file client.c: line 449 (client_set_auth_waiting): assertion failed: (client->to_auth_waiting == NULL) server dovecot: dovecot: child 5926 (login) killed with signal 6 (core not dumped) (ip=192.168.1.233) ... and Thunderbirds remote sieve optimizing plugin won't connect ... Otherwhise IMAP & POP authentication, etc. ... is working proper.

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