- dovecot - dovecot.org

Show other users quota
by Kristjan Eentsalu 19 Jun '17

19 Jun '17

Hey, Is there a way to show other users quota under shared namespace? Right now when I try to "a getquotaroot user/other.user" I get "NO Not showing other users' quota" Dovecot version 2.2.27 Relevant part of the config: namespace user { list = children location = maildir:%%h/Maildir:LAYOUT=fs:DIRNAME=iiuuuuiiiuuu:INDEXPVT=%h/shared/%%n prefix = user/%%n/ separator = / subscriptions = no type = shared } Kristjan

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Re: Minor patches for builds against ancient platforms
by Joseph Tam 17 Jun '17

17 Jun '17

> I've tried changing how I symbolically linked the mailboxes, i.e., > creating a sub-directory that is symlinked into the user's mail/ > directory versus symbolically linking the mbox files themselves, etc. > No dice. Permissions are fine. I've even resorted to changing the > index locking strategy, to no avail. I've tested my setup by symlinking both folders and boxes with user/0700 permissions, and they all work fine. > Folders that are NOT symbolically linked work perfectly, and have various > levels of hierarchy that are selectable as expected. Nothing appears in the logs. > > $ cd ~/mail > $ ls -l > -rw------- 1 2411625 Dec 16 09:12 Dovecot > lrwxrwxrwx 1 21 Jun 13 18:01 OldMail -> /u2/usermail/luser > -rwx------ 8 4096 Jan 1 12:09 "Open Source Projects" If this is output on the dovecot server itself so there's no mismatch in pathnames. Have you checked whether the dovecot user can traverse all the way from / to /u2/usermail/luser/ > I've (rm ~/mail/.subscriptions && touch ~/mail/.subscriptions) to flush any > subscriptions file issues. I'm thinking no .subscription would be better. > Is there a subtle interaction with mail_full_filesystem_access settings, or > similar that might be getting in the way? Dovecot does have chroot-ing stuff that might impede symlink following: https://wiki.dovecot.org/Chrooting > Other data: there are fs quotas on / but not /u2. That shouldn't matter, but > I will concede that I'm not a little ignorant about such things. It seems you have more basic file access problems. > How might I go about further debugging this? I've tried to manually doveadm > index those mailboxes, which doesn't give me any errors, but it also returns > far too quickly to give me the impression that it's done anything. Same result. Nothing with verbose logging (set mail_debug = yes)? Try the simple case ln -s /u2/usermail/luser/OLD_INBOX/INBOX_2016_01_to_08 ~luser/mail/testbox then $ telnet localhost 10143 x0 login luser *** x1 SELECT testbox What do you get here and in your logs? If this doesn't produce any usable diagnostics, I would pull out the heavy duty process trace tool and trace the imap process to figure out what it's really doing and where it's failing. Joseph Tam <jtam.home(a)gmail.com>

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Need Help to analyze the error or is it a bug?
by Dipl.-Ing. Harald E. Langner 16 Jun '17

16 Jun '17

After done an update to dovecot-2.2.30.2 my connection is broken since days. all what I try every time the same error: Jun 15 00:02:18 auth: Error: auth: environment corrupt; missing value for DOVECOT_ Jun 15 00:02:18 auth: Fatal: unsetenv(RESTRICT_SETUID) failed: Bad address Jun 15 00:02:18 master: Error: service(auth): command startup failed, throttling for 2 secs I try this: # doveadm -Dv auth test -x service=imap theusername mypassword output: Debug: Loading modules from directory: /usr/local/lib/dovecot Debug: Module loaded: /usr/local/lib/dovecot/lib20_virtual_plugin.so Debug: Loading modules from directory: /usr/local/lib/dovecot/doveadm Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: /usr/local/lib/dovecot/doveadm/lib10_doveadm_acl_plugin.so: Undefined symbol "acl_user_module" (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/local/lib/dovecot/doveadm/lib10_doveadm_expire_plugin.so: Undefined symbol "expire_set_lookup" (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: /usr/local/lib/dovecot/doveadm/lib10_doveadm_quota_plugin.so: Undefined symbol "quota_user_module" (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: /usr/local/lib/dovecot/doveadm/lib20_doveadm_fts_plugin.so: Undefined symbol "fts_filter_filter" (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: /usr/local/lib/dovecot/doveadm/libdoveadm_mail_crypt_plugin.so: Undefined symbol "mail_crypt_user_get_public_key" (this is usually intentional, so just ignore this message) Error: Timeout waiting for handshake from auth server. my pid=63521, input bytes=0 Fatal: Couldn't connect to auth socket dlopen() failed, Undefined symbols ... Is this a bug? How do I check what is going wrong with this auth socket error? 2nd) I'm using dovecot.conf protocols = imap lmtp !include conf.d/*.conf 10-auth.conf , 10-master.conf, auth-passwdfile.conf.ext, 10-ssl.conf and 10-logging.conf (all logs are on) All others, form the 29 configuration files, I haven't touch. It has worked, before I have done the update. What has changed? For what in the *.conf should I locking for? Thanks a lot.

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Error: fts_solr: received invalid uid '0'?
by Larry Rosenman 16 Jun '17

16 Jun '17

I'm getting a lot of: Jun 16 11:40:40 thebighonker dovecot: imap(ler/58755): Error: fts_solr: received invalid uid '0' Jun 16 11:40:40 thebighonker dovecot: imap(ler/58755): Error: fts_solr: received invalid uid '0' in my logs. What can I supply to help get to the bottom of it? doveconf -n: # 2.2.30.2 (c0c463e): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.18 (29cc74d) # OS: FreeBSD 11.1-BETA1 amd64 auth_default_realm = lerctr.org auth_mechanisms = plain login auth_realms = lerctr.org thebighonker.lerctr.org tbh.lerctr.org auth_username_format = %Ln default_vsz_limit = 1 G deliver_log_format = msgid=%m: %$ (subject=%s from=%f size=%w) lda_mailbox_autocreate = yes listen = 192.147.25.65, :: lmtp_save_to_detail_mailbox = yes login_access_sockets = tcpwrap mail_attribute_dict = file:%h/mail/.imap/dovecot-mail-attributes mail_debug = yes mail_location = mbox:~/mail:INBOX=~/mail/INBOX mail_log_prefix = "%s(%u/%p): " mail_plugins = " fts fts_solr notify stats virtual" mail_privileged_group = mail mail_server_admin = mailto:ler@lerctr.org mail_server_comment = LERCTR Mail Server mailbox_list_index = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext vacation-seconds editheader mboxmetadata servermetadata imapsieve vnd.dovecot.imapsieve namespace archive { hidden = no list = no location = mbox:~/MAIL-ARCHIVE prefix = ARCHIVE/ separator = / } namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox INBOX { auto = create } mailbox SENT { special_use = \Sent } mailbox SPAM { special_use = \Junk } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } mailbox virtual/Flagged { special_use = \Flagged } mailbox virtual/all { special_use = \All } prefix = } namespace virtual { hidden = no list = yes location = virtual:~/MAIL-VIRTUAL:INDEX=MEMORY prefix = Virtual/ separator = / } passdb { args = failure_show_msg=yes session=yes max_requests=20 driver = pam } plugin { fts = solr fts_autoindex = yes fts_solr = url=http://thebighonker.lerctr.org:8983/solr/dovecot/ fts_tika = http://localhost:9998/tika/ imapsieve_mailbox1_before = file:/usr/local/share/dovecot-pigeonhole/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = SPAM imapsieve_mailbox2_before = file:/usr/local/share/dovecot-pigeonhole/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = SPAM imapsieve_mailbox2_name = * imapsieve_url = sieve://thebighonker.lerctr.org mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename flag_change append mail_log_fields = uid box msgid size from subject vsize flags recipient_delimiter = + sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_execute_bin_dir = /usr/local/share/dovecot-pigeonhole/sieve sieve_extensions = +editheader +vacation-seconds +mboxmetadata +servermetadata sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute sieve_pipe_bin_dir = /usr/local/share/dovecot-pigeonhole/sieve sieve_plugins = sieve_imapsieve sieve_extprograms stats_command_min_time = 1 mins stats_domain_min_time = 12 hours stats_ip_min_time = 12 hours stats_memory_limit = 16 M stats_refresh = 5s stats_session_min_time = 15 mins stats_track_cmds = yes stats_user_min_time = 1 hours } protocols = imap pop3 lmtp sieve service auth { unix_listener auth-client { mode = 0666 } unix_listener auth-master { mode = 0666 } } service indexer-worker { drop_priv_before_exec = yes } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service stats { chroot = empty client_limit = 0 drop_priv_before_exec = no executable = stats extra_groups = fifo_listener stats-mail { group = mode = 0666 user = } fifo_listener stats-user { group = mode = 0666 user = } group = idle_kill = 4294967295 secs privileged_group = process_limit = 1 process_min_avail = 0 protocol = service_count = 0 type = unix_listener stats { group = mode = 0666 user = } user = $default_internal_user vsz_limit = 18446744073709551615 B } service tcpwrap { unix_listener login/tcpwrap { group = $default_login_user mode = 0600 user = $default_login_user } } ssl_cert = </home/ler/letsencrypt-home/lerctr.org/fullchain.cer ssl_cipher_list = EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+AESGCM:EECDH:EDH+AESGCM:EDH+aRSA:HIGH:!MEDIUM:!LOW:!aNULL:!eNULL:!LOW:!RC4:!MD5:!EXP:!PSK:!SRP:!DSS ssl_key = # hidden, use -P to show it ssl_protocols = !SSLv2 !SSLv3 userdb { driver = passwd } verbose_proctitle = yes protocol lmtp { mail_plugins = " fts fts_solr notify stats virtual sieve mail_log" } protocol lda { mail_plugins = " fts fts_solr notify stats virtual sieve mail_log" } protocol pop3 { mail_plugins = " fts fts_solr notify stats virtual mail_log" } protocol !doveadm { mail_plugins = " fts fts_solr notify stats virtual mail_log" } protocol imap { imap_client_workarounds = tb-extra-mailbox-sep tb-lsub-flags imap_logout_format = in=%i out=%o fhc=%{fetch_hdr_count} fhb=%{fetch_hdr_bytes} fbc=%{fetch_body_count} fbb=%{fetch_body_bytes} del=%{deleted} exp=%{expunged} trash=%{trashed} imap_metadata = yes mail_max_userip_connections = 50 mail_plugins = " fts fts_solr notify stats virtual mail_log imap_sieve imap_stats stats" } -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: larryrtx(a)gmail.com US Mail: 17716 Limpia Crk, Round Rock, TX 78664-7281

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doveadm-server core dump
by FUSTE Emmanuel 16 Jun '17

16 Jun '17

Hello, coredump found after a force-resync and a replicate Emmanuel. (dovecot-ee 2.2.30.2-1) [New LWP 17168] Core was generated by `dovecot/doveadm-server'. Program terminated with signal SIGABRT, Aborted. #0 0x00007fa334127c37 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 #0 0x00007fa334127c37 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 resultvar = 0 pid = 17168 selftid = 17168 #1 0x00007fa33412b028 in __GI_abort () at abort.c:89 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x20d2b48, sa_sigaction = 0x20d2b48}, sa_mask = {__val = {34255104, 0, 140338942616871, 1, 0, 181, 140338929827120, 140725975364353, 0, 0, 140338942645461, 0, 140338930777984, 140338937001888, 34203576, 140725975364140}}, sa_flags = 0, sa_restorer = 0x7ffd51c5b1c8} sigs = {__val = {32, 0 <repeats 15 times>}} #2 0x00007fa334546766 in default_fatal_finish (type=<optimized out>, status=status@entry=0) at failures.c:201 backtrace = 0x209df68 "/usr/lib/dovecot/libdovecot.so.0(+0x8d770) [0x7fa334546770] -> /usr/lib/dovecot/libdovecot.so.0(+0x8d84e) [0x7fa33454684e] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fa3344dcffb] -> dovecot/do"... #3 0x00007fa33454684e in i_internal_fatal_handler (ctx=0x7ffd51c5b3b0, format=<optimized out>, args=<optimized out>) at failures.c:670 status = 0 #4 0x00007fa3344dcffb in i_panic (format=format@entry=0x4530f8 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:275 ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0, timestamp_usecs = 0} args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7ffd51c5b4a0, reg_save_area = 0x7ffd51c5b3e0}} #5 0x000000000043a1eb in dsync_brain_sync_mailbox_deinit (brain=brain@entry=0x20d2b48) at dsync-brain-mailbox.c:371 last_common_uid = 0 last_messages_count = 0 last_common_modseq = 4428091 changes_during_sync = 0x0 last_common_pvt_modseq = 140725975364904 require_full_resync = false error = MAIL_ERROR_NONE __FUNCTION__ = "dsync_brain_sync_mailbox_deinit" #6 0x000000000043adc6 in dsync_brain_slave_recv_mailbox (brain=brain@entry=0x20d2b48) at dsync-brain-mailbox.c:841 dsync_box = 0x20d0878 local_dsync_box = {mailbox_guid = "\344B\277\017j\022\271T\002\253\000\000\367\362\265", <incomplete sequence \346>, mailbox_lost = false, have_guids = true, have_save_guids = true, have_only_guid128 = false, uid_validity = 1497621508, uid_next = 10, messages_count = 9, first_recent_uid = 1, highest_modseq = 3, highest_pvt_modseq = 0, cache_fields = {arr = {buffer = 0x209d208, element_size = 24}, v = 0x209d208, v_modifiable = 0x209d208}} box = 0x20e0f88 errstr = 0x2f <error: Cannot access memory at address 0x2f> resync_reason = 0x466b58 "UIDVALIDITY changed during a stateful sync, need to restart" error = MAIL_ERROR_NONE ret = <optimized out> resync = 255 __FUNCTION__ = "dsync_brain_slave_recv_mailbox" #7 0x00000000004387db in dsync_brain_run_real (changed_r=0x7ffd51c5b67f, brain=0x20d2b48) at dsync-brain.c:651 ret = true orig_state = DSYNC_STATE_SLAVE_RECV_MAILBOX orig_box_recv_state = DSYNC_BOX_STATE_MAILBOX orig_box_send_state = DSYNC_BOX_STATE_MAILBOX changed = false #8 dsync_brain_run (brain=brain@entry=0x20d2b48, changed_r=changed_r@entry=0x7ffd51c5b67f) at dsync-brain.c:687 _data_stack_cur_id = 5 #9 0x0000000000438ae1 in dsync_brain_run_io (context=0x20d2b48) at dsync-brain.c:110 brain = 0x20d2b48 changed = false try_pending = true #10 0x000000000044cc7f in dsync_ibc_stream_input (ibc=0x20c1a10) at dsync-ibc-stream.c:230 ibc = 0x20c1a10 #11 0x00007fa33455a802 in io_loop_call_io (io=0x20becc0) at ioloop.c:599 ioloop = 0x20a9f20 t_id = 4 __FUNCTION__ = "io_loop_call_io" #12 0x00007fa33455bd47 in io_loop_handler_run_internal (ioloop=ioloop@entry=0x20a9f20) at ioloop-epoll.c:223 ctx = 0x20ab100 list = 0x20c14f0 io = <optimized out> tv = {tv_sec = 4, tv_usec = 999912} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 call = <optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #13 0x00007fa33455a89c in io_loop_handler_run (ioloop=ioloop@entry=0x20a9f20) at ioloop.c:648 No locals. #14 0x00007fa33455aa58 in io_loop_run (ioloop=0x20a9f20) at ioloop.c:623 __FUNCTION__ = "io_loop_run" #15 0x000000000042065e in cmd_dsync_server_run (_ctx=0x20b6168, user=<optimized out>) at doveadm-dsync.c:1169 ctx = 0x20b6168 ibc = 0x20c1a10 brain = 0x20d2b48 temp_prefix = 0x209cb68 state_str = 0x0 sync_type = <optimized out> name = 0x20a9f00 "10.33.207.136" process_title_prefix = 0x209cb40 "10.33.207.136 " mail_error = MAIL_ERROR_NONE #16 0x0000000000421f96 in doveadm_mail_next_user (ctx=ctx@entry=0x20b6168, cctx=cctx@entry=0x7ffd51c5b8e0, error_r=error_r@entry=0x7ffd51c5b8d8) at doveadm-mail.c:416 input = {module = 0x0, service = 0x4592b0 "doveadm", username = 0x209b5e1 "T0146937", session_id = 0x0, session_id_prefix = 0x0, session_create_time = 0, local_ip = {family = 2, u = {ip6 = {__in6_u = {__u6_addr8 = "\n!χ", '\000' <repeats 11 times>, __u6_addr16 = {8458, 34767, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {2278498570, 0, 0, 0}}}, ip4 = {s_addr = 2278498570}}}, remote_ip = {family = 2, u = {ip6 = {__in6_u = {__u6_addr8 = "\n!ψ", '\000' <repeats 11 times>, __u6_addr16 = {8458, 35023, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {2295275786, 0, 0, 0}}}, ip4 = {s_addr = 2295275786}}}, local_port = 12345, remote_port = 55819, userdb_fields = 0x0, flags_override_add = (unknown: 0), flags_override_remove = (unknown: 0), no_userdb_lookup = 0, debug = 0} error = 0x20 <error: Cannot access memory at address 0x20> ip = <optimized out> ret = <optimized out> __FUNCTION__ = "doveadm_mail_next_user" #17 0x0000000000422909 in doveadm_mail_single_user (ctx=ctx@entry=0x20b6168, cctx=cctx@entry=0x7ffd51c5b8e0, error_r=error_r@entry=0x7ffd51c5b8d8) at doveadm-mail.c:447 __FUNCTION__ = "doveadm_mail_single_user" #18 0x0000000000435484 in doveadm_mail_cmd_server_run (cctx=0x7ffd51c5b8e0, mctx=0x20b6168, conn=0x20b1d48) at client-connection.c:164 error = 0x0 ret = <optimized out> #19 doveadm_cmd_handle (cctx=0x7ffd51c5b8e0, argv=0x209b618, argc=3, cmd_name=<optimized out>, conn=0x20b1d48) at client-connection.c:247 ioloop = 0x20a9f20 mail_cmd = 0x20aa138 mctx = 0x20b6168 cmd_ver2 = <optimized out> prev_ioloop = 0x20a39d0 cmd = 0x0 #20 client_handle_command (args=<optimized out>, conn=0x20b1d48) at client-connection.c:315 cctx = {cmd = 0x0, argc = 0, argv = 0x0, username = 0x209b5e1 "T0146937", cli = false, tcp_server = true, local_ip = {family = 2, u = {ip6 = {__in6_u = {__u6_addr8 = "\n!χ", '\000' <repeats 11 times>, __u6_addr16 = {8458, 34767, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {2278498570, 0, 0, 0}}}, ip4 = {s_addr = 2278498570}}}, remote_ip = {family = 2, u = {ip6 = {__in6_u = {__u6_addr8 = "\n!ψ", '\000' <repeats 11 times>, __u6_addr16 = {8458, 35023, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {2295275786, 0, 0, 0}}}, ip4 = {s_addr = 2295275786}}}, local_port = 12345, remote_port = 55819, conn = 0x20b1d48} flags = <optimized out> cmd_name = <optimized out> argc = <optimized out> #21 client_connection_input (conn=0x20b1d48) at client-connection.c:432 args = <optimized out> _data_stack_cur_id = 3 line = <optimized out> ok = true #22 0x00007fa33455a802 in io_loop_call_io (io=0x20a8660) at ioloop.c:599 ioloop = 0x20a39d0 t_id = 2 __FUNCTION__ = "io_loop_call_io" #23 0x00007fa33455bd47 in io_loop_handler_run_internal (ioloop=ioloop@entry=0x20a39d0) at ioloop-epoll.c:223 ctx = 0x20af660 list = 0x20a35c0 io = <optimized out> tv = {tv_sec = 2147483, tv_usec = 0} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 call = <optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #24 0x00007fa33455a89c in io_loop_handler_run (ioloop=ioloop@entry=0x20a39d0) at ioloop.c:648 No locals. #25 0x00007fa33455aa58 in io_loop_run (ioloop=0x20a39d0) at ioloop.c:623 __FUNCTION__ = "io_loop_run" #26 0x00007fa3344e6e43 in master_service_run (service=0x20a3870, callback=callback@entry=0x437690 <client_connected>) at master-service.c:666 No locals. #27 0x0000000000413ff7 in main (argc=1, argv=0x20a35e0) at main.c:143 set_roots = {0x464b40 <doveadm_setting_parser_info>, 0x0} input = {roots = 0x7ffd51c5ba60, config_path = 0x0, preserve_environment = false, preserve_user = false, preserve_home = false, never_exec = false, use_sysexits = false, parse_full_config = false, module = 0x4592b0 "doveadm", service = 0x4592b0 "doveadm", username = 0x0, local_ip = {family = 0, u = {ip6 = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, remote_ip = {family = 0, u = {ip6 = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, local_name = 0x0} output = {specific_services = 0x0, service_uses_local = 0, service_uses_remote = 0, used_local = 0, used_remote = 0, permission_denied = 0} error = 0x7fa334f3f520 "\200\364\363\064\243\177" c = <optimized out>

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Re: Minor patches for builds against ancient platforms
by Joseph Tam 15 Jun '17

15 Jun '17

> I do know that this little box of horrors has 200-300MB mbox INBOXes on an > ext3 filesystem formatted in 2005. I am very nervous about converting them to > Maildir at this point. Fortunately, it just involves reformatting the data and a little reconmfiguration of dovcot. If you can find the tool and disk space, it's well worth doing. Of course, when running a proverbial dinosaur, you're often more preoccupied with preventing the next proverbial meteorite strike. > What I meant was, are certain types of filenames "blocked" by policy from > being created via IMAP commands? I'm sure I could run a few tests to answer > this for myself, or better still, go through Timo's code. I never saw anything that could do that -- maybe you can torture the virtual mailbox facility to get that done. If all your concerned is dovecot dot-files, you can place the indices somewhere else other than the user's filesapace. > One last problem area is that many users have soft-links to mailboxes > located on a second drive, but these never appear in folder enumeration > lists or they appear grayed out in SeaMonkey/Thunderbird. I've tried > just symbolically linking to directories containing other mboxes, but > sometimes it works, and sometimes it doesn't. I wonder if there's > paranoia checking in the code that follows symbolic links to ensure > that uids/gids of the "owning" directory and the linked-to directory > (or files within it) are the same. It works for me. From what I see, the ownership of the symlink is ignored; it's the underlying file that counts. Maybe a subscription issue? Joseph Tam <jtam.home(a)gmail.com>

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Re: Minor patches for builds against ancient platforms
by Joseph Tam 14 Jun '17

14 Jun '17

"M. Balridge" <dovecot(a)r.paypc.com> writes: > I assume it's a rarely seen issue because few Dovecot users compile the > software in caves on computers powered by horse-pulled generator > wheels. I resemble that remark. >> Warning: Transaction log file /home/luser/mail/.imap/INBOX/dovecot.index.log >> was locked for 95 seconds (rotating while syncing) Timo recently explained to me it's probably caused by slow I/O or processing. This explanation is consistent with my observation that the users who get these messages have jumbo mailboxes. > imap(luser): Error: fchown(/home/luser/mail/.subscriptions.lock, > group=501(coregroup)) failed: Operation not permitted (egid=200(users), group > based on /home/luser/mail - see http://wiki2.dovecot.org/Errors/ChgrpNoPerm) > > imap(luser): Error: file_dotlock_open() failed with subscription file > /home/luser/mail/.subscriptions: Operation not permitted > > .subscriptions doesn't exist either as a file or a directory in the named > directories. > > Is there a "filter" against dot-files being opened within the bowels of dovecot? You can disable dotclock altogether, but I don't think this is what you meant. You can use locking method "dotlock_try" rather than "dotlock" -- the former will ignore quota/permissions problems and plow on. (It still logs it.) You could also align luser's mail folder group with with luser's GID, which is usually what I do. Maybe locks are created even when files don't exist as there may be a race condition where another process is creating/deleting it at the same time. Joseph Tam <jtam.home(a)gmail.com>

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v2.2.30 released
by Timo Sirainen 13 Jun '17

13 Jun '17

https://dovecot.org/releases/2.2/dovecot-2.2.30.tar.gz https://dovecot.org/releases/2.2/dovecot-2.2.30.tar.gz.sig * auth: Use timing safe comparisons for everything related to passwords. It's unlikely that these could have been used for practical attacks, especially because Dovecot delays and flushes all failed authentications in 2 second intervals. Also it could have worked only when passwords were stored in plaintext in the passdb. * master process sends SIGQUIT to all running children at shutdown, which instructs them to close all the socket listeners immediately. This way restarting Dovecot should no longer fail due to some processes keeping the listeners open for a long time. + auth: Add passdb { mechanisms=none } to match separate passdb lookup + auth: Add passdb { username_filter } to use passdb only if user matches the filter. See https://wiki2.dovecot.org/PasswordDatabase + dsync: Add dsync_commit_msgs_interval setting. It attempts to commit the transaction after saving this many new messages. Because of the way dsync works, it may not always be possible if mails are copied or UIDs need to change. + imapc: Support imapc_features=search without ESEARCH extension. + imapc: Add imapc_features=fetch-bodystructure to pass through remote server's FETCH BODY and BODYSTRUCTURE. + imapc: Add quota=imapc backend to use GETQUOTA/GETQUOTAROOT on the remote server. + passdb imap: Add allow_invalid_cert and ssl_ca_file parameters. + If dovecot.index.cache corruption is detected, reset only the one corrupted mail instead of the whole file. + doveadm mailbox status: Add "firstsaved" field. + director_flush_socket: Add old host's up/down and vhost count as parameters - More fixes to automatically fix corruption in dovecot.list.index - dsync-server: Fix support for dsync_features=empty-header-workaround - imapc: Various bugfixes, including infinite loops on some errors - IMAP NOTIFY wasn't working for non-INBOX if IMAP client hadn't enabled modseq tracking via CONDSTORE/QRESYNC. - fts-lucene: Fix it to work again with mbox format - Some internal error messages may have contained garbage in v2.2.29 - mail-crypt: Re-encrypt when copying/moving mails and per-mailbox keys are used. Otherwise the copied mails can't be opened. - vpopmail: Fix compiling

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rescann / reindex / rebuild a subfolder structure
by Götz Reinicke - IT Koordinator 13 Jun '17

13 Jun '17

Hi, an user is missing all mail from a folder and all subfolders which are still saved in the users maildir directory on the dovecot server. From an imap client she sees the main folder but empty. No subfolders. She told me with an other imap client and a new created account she has the same problem. Question: Can I resync / regenerate some folder... index.... something....-files from the dovecot side? Thanks for hints and regards . Götz

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Re: Minor patches for builds against ancient platforms
by Joseph Tam 13 Jun '17

13 Jun '17

> On that note, has anyone written a tool that "harmonises" users mail > directories' permissions - ideally reading the dovecot configuration to assess > where *THE* mail directories are actually used by dovecot? doveadm user $user which will supply the second half: it will spit out the UID, GID, home and mail directories of a user as specified by dovecot's configuration. > I was surprised by the pickiness of the group ownership/permissions > issues, though reflecting on things, I can see why you'd at least want > some logging by default for those conditions. This is a consequence of writing secure software: it employs least privilege so that a fault will not result in someone being able to mess around with someone else's mail (or indices). GID can also govern access to shared mailboxes. Joseph Tam <jtam.home(a)gmail.com>

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