- dovecot - dovecot.org

Install locks up my server
by Marc Perkel 18 Aug '17

18 Aug '17

Ever since 2.26 I haven't been able to upgrade. In fact the install locks up my server. I get into and infinite recursive loop where the config-guess program calls itself until the server locks up from overload. I'm running Centos 6 under OpenVZ. What am I missing? I think there's a serious bug. 31233 pts/3 S 0:00 /bin/sh ./config.guess 31235 pts/3 S 0:00 \_ /bin/sh ./config.guess 31238 pts/3 S 0:00 \_ /bin/sh ./config.guess 31240 pts/3 S 0:00 \_ /bin/sh ./config.guess 31241 pts/3 S 0:00 \_ /bin/sh ./config.guess 31267 pts/3 S 0:00 \_ /bin/sh ./config.guess 31272 pts/3 S 0:00 \_ /bin/sh ./config.guess 31279 pts/3 S 0:00 \_ /bin/sh ./config.guess 31280 pts/3 S 0:00 \_ /bin/sh ./config.guess 31281 pts/3 S 0:00 \_ /bin/sh ./config.guess 31283 pts/3 S 0:00 \_ /bin/sh ./config.guess 31284 pts/3 S 0:00 \_ /bin/sh ./config.guess 31285 pts/3 S 0:00 \_ /bin/sh ./config.guess 31292 pts/3 S 0:00 \_ /bin/sh ./config.guess 31303 pts/3 S 0:00 \_ /bin/sh ./config.guess 31304 pts/3 S 0:00 \_ /bin/sh ./config.guess 31305 pts/3 S 0:00 \_ /bin/sh ./config.guess 31306 pts/3 S 0:00 \_ /bin/sh ./config.guess 31307 pts/3 S 0:00 \_ /bin/sh ./config.guess 31321 pts/3 S 0:00 \_ /bin/sh ./config.guess 31340 pts/3 S 0:00 \_ /bin/sh ./config.guess 31341 pts/3 S 0:00 \_ /bin/sh ./config.guess 31426 pts/3 S 0:00 \_ /bin/sh ./config.guess 31530 pts/3 S 0:00 \_ /bin/sh ./config.guess

2 4

/var/run/dovecot permission issues
by Matt Simpson 18 Aug '17

18 Aug '17

I have an issue that surfaced when I tried to start using the new metrics service, but it looks like it may be a more generic issue. When I enabled stats and started dovecot, I got the following error in the log: Error: stats: open(/var/run/dovecot/stats-mail) failed: Permission denied /var/run/dovecot/stats-mail did not exist. /var/run/dovecot/ existed, owned by root, which apparently was preventing dovecot from creating stats-mail. On advice from another list subscriber, I changed the ownership of /var/run/dovecot to the dovecot user. This doesn’t help. Apparently /var/run/dovecot is deleted by dovecot when it shuts down, and recreated, with root ownership, when it restarts. stats-mail is created, with root ownership. Is there something I need to change to prevent dovecot from creating this directory owned by root? I was unaware of any problems before trying to enable stats, but the ownership of files in that directory is a mixed bag $ ls -l /var/run/dovecot total 20 srw------- 1 root wheel 0 Aug 17 09:05 anvil srw------- 1 root wheel 0 Aug 17 09:05 anvil-auth-penalty srw------- 1 dovecot wheel 0 Aug 17 09:05 auth-client srw------- 1 dovecot wheel 0 Aug 17 09:05 auth-login srw-rw---- 1 alias qnofiles 0 Aug 17 09:05 auth-master -rw------- 1 root wheel 32 Aug 17 09:05 auth-token-secret.dat srw-rw-rw- 1 dovecot wheel 0 Aug 17 09:05 auth-userdb srw------- 1 dovecot wheel 0 Aug 17 09:05 auth-worker srw------- 1 root wheel 0 Aug 17 09:05 config srw------- 1 root wheel 0 Aug 17 09:05 dict srw------- 1 root wheel 0 Aug 17 09:05 dict-async srw------- 1 root wheel 0 Aug 17 09:05 director-admin srw-rw-rw- 1 root wheel 0 Aug 17 09:05 dns-client srw------- 1 root wheel 0 Aug 17 09:05 doveadm-server lrwx------ 1 root wheel 35 Aug 17 09:05 dovecot.conf -> /usr/local/etc/dovecot/dovecot.conf drwxr-xr-x 2 root wheel 512 Aug 17 09:05 empty srw------- 1 root wheel 0 Aug 17 09:05 imap-hibernate srw------- 1 root wheel 0 Aug 17 09:05 imap-master srw-rw-rw- 1 root wheel 0 Aug 17 09:05 imap-urlauth srw------- 1 dovecot wheel 0 Aug 17 09:05 imap-urlauth-worker srw-rw-rw- 1 root wheel 0 Aug 17 09:05 indexer srw------- 1 dovecot wheel 0 Aug 17 09:05 indexer-worker srw------- 1 root wheel 0 Aug 17 09:05 ipc srw------- 1 root wheel 0 Aug 17 09:05 log-errors drwxr-x--- 2 root dovenull 512 Aug 17 09:05 login srw------- 1 root wheel 0 Aug 17 09:05 master -rw------- 1 root wheel 6 Aug 17 09:05 master.pid srw------- 1 root wheel 0 Aug 17 09:05 replication-notify prw------- 1 root wheel 0 Aug 17 09:05 replication-notify-fifo srw------- 1 dovecot wheel 0 Aug 17 09:05 replicator srw-rw-rw- 1 root wheel 0 Aug 17 09:05 ssl-params srw------- 1 root wheel 0 Aug 17 09:05 stats prw------- 1 root wheel 0 Aug 17 09:05 stats-mail prw------- 1 root wheel 0 Aug 17 09:05 stats-user drwxr-x--- 2 root dovenull 512 Aug 17 09:05 token-login $ doveconf -n # 2.2.31 (65cde28): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.19 (e5c7051) # OS: FreeBSD 11.0-RELEASE-p9 amd64 auth_stats = yes auth_verbose = yes default_vsz_limit = 128 M lock_method = flock mail_location = maildir:~/Maildir mail_plugins = " stats" mail_privileged_group = mail 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 vnd.dovecot.pipe vnd.dovecot.execute namespace inbox { inbox = yes location = prefix = } passdb { args = imap driver = pam } plugin { recipient_delimiter = - sieve = file:~/sieve;active=~/.dovecot.sieve sieve_execute_bin_dir = /usr/local/lib/dovecot/sieve-pipe sieve_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute sieve_pipe_bin_dir = /usr/local/lib/dovecot/sieve-pipe sieve_pipe_exec_timeout = 10s sieve_plugins = sieve_extprograms stats_refresh = 30s } protocols = imap service auth { unix_listener auth-master { group = qnofiles mode = 0660 user = alias } user = root } service imap-login { process_min_avail = 3 vsz_limit = 94 M } ssl_cert = </usr/local/etc/letsencrypt/live/dummy.redhorse.me/fullchain.pem ssl_cipher_list = EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH ssl_dh_parameters_length = 2048 ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv2 !SSLv3 stats_carbon_name = RedHorseMail stats_carbon_server = [2a04:3542:1000:910:acc1:5bff:fe5e:8c2] syslog_facility = local0 userdb { driver = passwd } verbose_proctitle = yes protocol lda { mail_plugins = " stats sieve" }

4 5

Filter of old Thunderbird installation interferes with lmtp/ Mail delivery / sieve
by Jürgen Gmach 18 Aug '17

18 Aug '17

# 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 4.9.25 i686 Gentoo Base System release 2.2 # pidgeonhole v0.4.3 # Thunderbird 3.0.4 impact ------ Emails, for which the filter applies, gets copied to the desired folder, but get kept in the inbox with deleted flag (in Roundcube you see them grayed out a bit, in Thunderbird they are not shown at all). When the incoming email is from an internal mailing list (mailman), beginning with the user with the buggy Thunderbird all following emails of the internal users are flagged as deleted, but only if the user has a sieve file in their directory - no matter whether it is active or not. After activating detailed logging the user with the "problematic" filter was found quickly. The error is reproducible: - install old Thunderbird version - create filter - write an email, which triggers the filter -> email is flagged deleted but does not get deleted Though, the user does not have a sieve file on our server, the filtering happened in the very same second when the email was delivered to the other colleagues. Both Thunderbird and Pidgeonhole are outdated, so I am unsure if you are even interested in this bug report. Fix --- I made the user to update his Thunderbird version -> no more problems. Anyhow, a single "user interaction" should not be able to effect other mail accounts (ie Thunderbirds filter somehow disturbed the lmtp process). -- Jürgen Gmach . juergen.gmach(a)apis.de . +49 9482 941545 APIS Informationstechnologien GmbH . http://www.apis.de Gewerbepark A 13, 93086 Wörth/Donau . Deutschland Sitz der GmbH: Wörth/Donau, Amtsgericht Regensburg (HRB 6684) Geschäftsführer: Julia Anna Dietz, Jürgen Eilers, Peter Rosenbeck

1 0

dotlock causing crashes
by Ian Bobbitt 18 Aug '17

18 Aug '17

OS: CentOS 7 x86_64 Dovecot version: 2.2.31 (65cde28) (GhettoForge RPM) Filesystem: GlusterFS, but working on changing that. Only one server is receiving activity. Was getting messages about corrupt dovecot.map.index files. Changed to dotlock from fcntl to try to fix that. Reading symbols from /usr/libexec/dovecot/imap...(no debugging symbols found)...done. [New LWP 74012] Core was generated by `dovecot/imap'. Program terminated with signal 6, Aborted. #0 0x00007fa262c741d7 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 56 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig); (gdb) bt full #0 0x00007fa262c741d7 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 resultvar = 0 pid = 74012 selftid = 74012 #1 0x00007fa262c758c8 in __GI_abort () at abort.c:90 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x7ffd7009f401, sa_sigaction = 0x7ffd7009f401}, sa_mask = {__val = {0, 0, 140335431377968, 140335423109592, 140335422613219, 4246482, 140335418575669, 12278048, 4192326493288016896, 12278592, 140335423192931, 0, 0, 140335425698848, 12280232, 140726483153732}}, sa_flags = 1657305400, sa_restorer = 0x79a} sigs = {__val = {32, 0 <repeats 15 times>}} #2 0x00007fa26309eac6 in default_fatal_finish (type=<optimized out>, status=status@entry=0) at failures.c:201 backtrace = 0xbb5958 "/usr/lib64/dovecot/libdovecot.so.0(+0x9eace) [0x7fa26309eace] -> /usr/lib64/dovecot/libdovecot.so.0(+0x9ebae) [0x7fa26309ebae] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7fa26303012c] -> /usr"... #3 0x00007fa26309ebae in i_internal_fatal_handler (ctx=0x7ffd7009f4d0, format=<optimized out>, args=<optimized out>) at failures.c:670 status = 0 #4 0x00007fa26303012c in i_panic (format=format@entry=0x7fa2630d11de "file %s: line %d: unreached") at failures.c:275 ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0, timestamp_usecs = 0} args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7ffd7009f5d0, reg_save_area = 0x7ffd7009f510}} #5 0x00007fa2630a344f in file_lock_do (fd=fd@entry=20, path=path@entry=0xbb5868 "/gnoc/mail/home/bgeels/mail/mailboxes/Junk/dbox-Mails/.vsize.lock23f657caa43d8796", lock_type=lock_type@entry=1, lock_method=lock_method@entry=FILE_LOCK_METHOD_DOTLOCK, timeout_secs=0, error_r=error_r@entry=0x7ffd7009f768) at file-lock.c:285 lock_type_str = 0x7fa2630e6948 "write-lock" started = 1502905468 ret = <optimized out> __FUNCTION__ = "file_lock_do" #6 0x00007fa2630a3796 in file_wait_lock_error (fd=20, path=0xbb5868 "/gnoc/mail/home/bgeels/mail/mailboxes/Junk/dbox-Mails/.vsize.lock23f657caa43d8796", lock_type=1, lock_method=FILE_LOCK_METHOD_DOTLOCK, timeout_secs=<optimized out>, lock_r=0xc4ec10, error_r=0x7ffd7009f768) at file-lock.c:314 ret = <optimized out> #7 0x00007fa2630a3813 in file_try_lock_error (fd=<optimized out>, path=<optimized out>, lock_type=lock_type@entry=1, lock_method=lock_method@entry=FILE_LOCK_METHOD_DOTLOCK, lock_r=lock_r@entry=0xc4ec10, error_r=error_r@entry=0x7ffd7009f768) at file-lock.c:66 No locals. #8 0x00007fa2630a0955 in try_create_new (error_r=0x7ffd7009f768, lock_r=0xc4ec10, fd_r=0x7ffd7009f700, set=0x7ffd7009f770, path=0xc2f930 "/gnoc/mail/home/bgeels/mail/mailboxes/Junk/dbox-Mails/.vsize.lock") at file-create-locked.c:65 fd = 20 orig_errno = <optimized out> ret = -1 temp_path = 0xbb5830 mode = 0 uid = <optimized out> gid = 4294967295 #9 file_create_locked (path=0xc2f930 "/gnoc/mail/home/bgeels/mail/mailboxes/Junk/dbox-Mails/.vsize.lock", set=set@entry=0x7ffd7009f770, lock_r=lock_r@entry=0xc4ec10, created_r=created_r@entry=0x7ffd7009f767, error_r=error_r@entry=0x7ffd7009f768) at file-create-locked.c:118 i = 0 fd = <optimized out> ret = <optimized out> __FUNCTION__ = "file_create_locked" #10 0x00007fa2633e8f80 in vsize_update_lock_full (update=0xc4ebd0, lock_secs=lock_secs@entry=0) at index-mailbox-size.c:150 box = 0xc2e268 perm = 0xc2e440 set = {lock_timeout_secs = 0, lock_method = FILE_LOCK_METHOD_DOTLOCK, mode = 384, uid = 0, gid = 4294967295, gid_origin = 0xc2ea58 "/gnoc/mail/home/bgeels/mail/mailboxes/Junk"} error = 0x7fa2633f2062 <index_storage_get_status+66> "1\300[]A\\\303\017\037\200" created = false #11 0x00007fa2633e9057 in index_mailbox_vsize_update_try_lock (update=<optimized out>) at index-mailbox-size.c:167 No locals. #12 0x00007fa2633e9755 in index_mailbox_vsize_update_appends (box=<optimized out>) at index-mailbox-size.c:479 update = 0xc4ebd0 status = {messages = 1323, recent = 0, unseen = 0, uidvalidity = 1413091786, uidnext = 6750, first_unseen_seq = 0, first_recent_uid = 5886, last_cached_seq = 0, highest_modseq = 0, highest_pvt_modseq = 0, keywords = 0x0, permanent_flags = 0, flags = 0, permanent_keywords = 0, allow_new_keywords = 0, nonpermanent_modseqs = 0, no_modseq_tracking = 0, have_guids = 1, have_save_guids = 1, have_only_guid128 = 0} #13 0x00007fa2633f633c in index_mailbox_sync_deinit (_ctx=0xc4ece0, status_r=0x7ffd7009f900) at index-sync.c:346 ctx = 0xc4ece0 sync_rec = {seq1 = 0, seq2 = 0, type = (unknown: 0)} delayed_expunges = false ret = <optimized out> #14 0x00007fa2633784b2 in mailbox_sync_deinit (_ctx=_ctx@entry=0x7ffd7009f910, status_r=status_r@entry=0x7ffd7009f900) at mail-storage.c:1868 ctx = <optimized out> box = 0xc2e268 errormsg = <optimized out> error = MAIL_ERROR_NONE ret = <optimized out> #15 0x00007fa263378589 in mailbox_sync (box=<optimized out>, flags=<optimized out>, flags@entry=(unknown: 0)) at mail-storage.c:1894 ctx = 0x0 status = {sync_delayed_expunges = 0} #16 0x00007fa26221ae4f in imap_sieve_mailbox_transaction_run (changes=0x7ffd7009fb50, dest_box=0xc00a08, ismt=<optimized out>) at imap-sieve-storage.c:727 sbox = 0xc2e268 isrun = 0xc27580 cause = 0x7fa26221c447 "COPY" ret = <optimized out> isuser = <optimized out> mevent = <optimized out> headers_ctx = 0xbb53a0 st = 0x1 isrun_src = 0x0 siter = {array = 0xbb57f8, prev_n = 8, prev_idx = 0} script_name = 0x0 can_discard = true src_mail = 0x0 wanted_headers = {0x7fa26221c567 "From", 0x7fa26221c56c "To", 0x7fa26221c136 "Message-ID", 0x7fa26221c56f "Subject", 0x7fa26221c577 "Return-Path", 0x0} src_box = 0xbe2f78 user = <optimized out> mail = 0xbd7228 #17 imap_sieve_mailbox_transaction_commit (t=<optimized out>, changes_r=0x7ffd7009fb50) at imap-sieve-storage.c:808 box = 0xc00a08 user = <optimized out> ismt = <optimized out> lbox = <optimized out> isuser = 0xbd6d30 ret = 0 #18 0x00007fa2628337fa in acl_transaction_commit (ctx=0xc28060, changes_r=0x7ffd7009fb50) at acl-mailbox.c:460 abox = 0xc01018 at = <optimized out> ret = <optimized out> #19 0x00007fa2633789b1 in mailbox_transaction_commit_get_changes (_t=<optimized out>, changes_r=0x7ffd7009fb50) at mail-storage.c:2042 _data_stack_cur_id = 4 t = 0xc28060 box = 0xc00a08 save_count = 1 ret = <optimized out> __FUNCTION__ = "mailbox_transaction_commit_get_changes" #20 0x000000000040e94c in cmd_copy_full () No symbol table info available. #21 0x000000000041accc in command_exec () No symbol table info available. #22 0x000000000041932f in client_command_input () No symbol table info available. #23 0x00000000004193c1 in client_command_input () No symbol table info available. #24 0x0000000000419765 in client_handle_input () No symbol table info available. #25 0x0000000000419c42 in client_input () No symbol table info available. #26 0x00007fa2630b3782 in io_loop_call_io (io=0xbd1dc0) at ioloop.c:599 ioloop = 0xbbd9a0 t_id = 2 __FUNCTION__ = "io_loop_call_io" #27 0x00007fa2630b4e0f in io_loop_handler_run_internal (ioloop=ioloop@entry=0xbbd9a0) at ioloop-epoll.c:223 ctx = 0xbbf4c0 events = <optimized out> list = 0xbc0f20 io = <optimized out> tv = {tv_sec = 1799, tv_usec = 999317} events_count = <optimized out> msecs = <optimized out> ret = 1 i = 0 call = <optimized out> __FUNCTION__ = "io_loop_handler_run_internal" #28 0x00007fa2630b381c in io_loop_handler_run (ioloop=ioloop@entry=0xbbd9a0) at ioloop.c:648 No locals. #29 0x00007fa2630b39d8 in io_loop_run (ioloop=0xbbd9a0) at ioloop.c:623 __FUNCTION__ = "io_loop_run" #30 0x00007fa26303a6e3 in master_service_run (service=0xbbd840, callback=<optimized out>) at master-service.c:666 No locals. #31 0x000000000040cbd2 in main () No symbol table info available. # 2.2.31 (65cde28): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.19 (e5c7051) doveconf: Warning: service auth { client_limit=20480 } is lower than required under max. load (24576) # OS: Linux 3.10.0-514.21.2.el7.x86_64 x86_64 CentOS Linux release 7.3.1611 (Core) auth_cache_negative_ttl = 0 auth_cache_size = 10 M auth_master_user_separator = * auth_mechanisms = plain login auth_username_format = %Ln auth_verbose = yes auth_worker_max_count = 100 base_dir = /var/run/dovecot/ default_client_limit = 2048 default_process_limit = 4096 default_vsz_limit = 1 G dict { acl = mysql:/etc/dovecot/dovecot-sql-dict.conf.ext } first_valid_uid = 1000 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lock_method = dotlock mail_attachment_dir = /gnoc/mail/attachments/ mail_attachment_fs = sis-queue /gnoc/mail/attachments/queue/:posix mail_attachment_hash = %{sha256} mail_fsync = always mail_gid = vmail mail_location = mdbox:~/mail mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = " listescape acl" mail_uid = vmail 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 spamtest spamtestplus editheader vnd.dovecot.debug imapsieve vnd.dovecot.imapsieve mdbox_rotate_size = 20 M mmap_disable = yes namespace { list = children location = mdbox:%%h/mail:INDEXPVT=~/mail/shared/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } namespace inbox { inbox = yes location = mailbox Archive { special_use = \Archive } mailbox Archives { special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } mailbox sent-mail { special_use = \Sent } prefix = separator = / } passdb { args = /etc/dovecot/dovecot-sql-pass-sieve.conf.ext driver = sql } passdb { args = /etc/dovecot/dovecot-sql-pass-nologin.conf.ext driver = sql } passdb { args = /etc/dovecot/dovecot-ldap-proxy.conf.ext driver = ldap override_fields = proxy=Y host=mail1-new.grnoc.iu.edu starttls=any-cert noauthenticate=yes } passdb { args = /etc/dovecot/passwd.masterusers driver = passwd-file master = yes pass = yes } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile:/gnoc/mail/dict/acls:cache_secs=300 acl_shared_dict = proxy::acl imapsieve_mailbox1_before = file:/etc/dovecot/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/etc/dovecot/sieve/report-spam.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_name = Junk imapsieve_mailbox3_before = file:/etc/dovecot/sieve/report-ham.sieve imapsieve_mailbox3_causes = COPY imapsieve_mailbox3_from = Spam imapsieve_mailbox3_name = * imapsieve_mailbox4_before = file:/etc/dovecot/sieve/report-ham.sieve imapsieve_mailbox4_causes = COPY imapsieve_mailbox4_from = Junk imapsieve_mailbox4_name = * sieve = ~/.dovecot.sieve sieve_before = /etc/dovecot/sieve/before sieve_before2 = /gnoc/mail/home/%Ln/sieve-before sieve_dir = ~/sieve sieve_extensions = +spamtest +spamtestplus +vnd.dovecot.debug +editheader sieve_global_dir = /etc/dovecot/sieve/global sieve_global_extensions = +vnd.dovecot.pipe sieve_pipe_bin_dir = /etc/dovecot/sieve/bin sieve_plugins = sieve_imapsieve sieve_extprograms sieve_spamtest_max_header = X-Spam-Status: \w+, score=-?[[:digit:]]+\.[[:digit:]]+ required=([[:digit:]]+\.[[:digit:]]+) sieve_spamtest_status_header = X-Spam-Status: \w+, score=(-?[[:digit:]]+\.[[:digit:]]) sieve_spamtest_status_type = score } protocols = imap pop3 lmtp sieve service anvil { client_limit = 16387 } service auth { client_limit = 20480 unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } service dict { unix_listener dict { group = vmail mode = 0660 user = vmail } } service imap { process_limit = 4096 vsz_limit = 1 G } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } vsz_limit = 1 G } service managesieve-login { inet_listener sieve { port = 4190 } } ssl = required ssl_ca = </etc/pki/tls/cert.pem ssl_cert = </var/lib/acme/live/mail.ctc.grnoc.iu.edu/fullchain ssl_cipher_list = ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA ssl_dh_parameters_length = 2048 ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv2 !SSLv3 ssl_require_crl = no userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = " listescape acl sieve" postmaster_address = postmaster(a)globalnoc.iu.edu } protocol lda { mail_plugins = " listescape acl sieve" } protocol imap { mail_max_userip_connections = 100 mail_plugins = " listescape acl imap_acl imap_sieve" }

2 1

is a self signed certificate always invalid the first time?
by Alef Veld 18 Aug '17

18 Aug '17

So i’m using dovecot, and i created a self signed certificate with mkcert.sh based on dovecot-openssl.cnf. The name in there matches my mail server. The first time it connects in mac mail however, it says the certificate is invalid and another server might pretend to be me etc. I then have the option of trusting it. Is this normal behaviour? Will it always be invalid if it’s not signed by a third party? Thank you.

14 35

Dovecot mail_location for fedora
by Randy Gordey 18 Aug '17

18 Aug '17

What is the syntax for dovecot mail_location when postfix delivers mail to /var/spool/mail/? These are the old unix style mbox, one file per user. Not setting mail_location in 10-mail.conf results in Auto not finding it. mbox: /var/spool/mail/%u said mbox root directory can't be a file. mbox: /var/spool/mail/ tries to make Sent and Deleted Folders, etc. maildir: /var/spool/mail/ closes the connection. I am using Outlook 2016 and Thunderbird are two imap clients I am trying. For Dovecot, 2.2.31 is the version. Postfix is version 3.2.2 and seems to be working. A vanilla Fedora 26 is the OS

3 3

Re: is a self signed certificate always invalid the first time
by Joseph Tam 18 Aug '17

18 Aug '17

> Obviously you do not use clustered environments with more than one node > per service. Else you would not call it "it just works", because in > fact the renewal is quite big bs as one node must do the job while all > the others must be _offline_. I'm not sure how you have set up your clustered service, but why do your nodes have to go offline? If these other nodes are using an older certificate, it should still work as the previous/renewed certificate usually have overlapping active begin/expiration dates. Joseph Tam <jtam.home(a)gmail.com>

1 0

Re: v2.2.32 release candidate released
by Joseph Tam 18 Aug '17

18 Aug '17

Timo Sirainen wrote: Thanks for the reply -- I think I can now write a new config to test these tasty features out. >>> + mail_location can now include NO-NOSELECT parameter. This >>> automatically deletes any \NoSelect mailboxes that have no children. >>> These mailboxes are sometimes confusing to users. >> >> Sorry for my IMAP ignorance, but how can this situation come about? > > a CREATE noselectbox/ > --> With this change it's the same as CREATE "noselectbox" = will become selectable. > > or > > a CREATE noselectbox/childbox > b DELETE noselectbox/childbox > --> noselectbox is left behind. With this change it will be auto-deleted. So, does that mean empty folders will be auto-deleted, or this wouldn't affect them? > I think already even with mailbox_list_index=yes it won't notice > external changes done to the mailboxes when doing STATUS calls, so > better to avoid that. It does get fixed automatically once the folder > is selected though. I'm running it this way now (concurrent file and dovecot access) and most users are blithe to it, so I guess it won't be too much worse. I'll try aggressive caching and back off if it causes confusion. Thanks. Joseph Tam <jtam.home(a)gmail.com>

2 1

Released Pigeonhole v0.4.20.rc1 for Dovecot v2.2.32.rc1.
by Stephan Bosch 18 Aug '17

18 Aug '17

Hello Dovecot users, Here's a release candidate for a quick Pigeonhole release, mostly containing fixes. One fix addresses a problem caused by the previous release. Changelog v0.4.20: + Made the retention period for redirect duplicate identifiers configurable. For accounts that perform many redirects, the lda-dupes database could grow to impractical sizes. Changed the default retention period from 24 to 12 hours. - sieve-filter: Fixed memory leak: forgot to clean up script binary at end of execution. Normally, this would merely be an inconsequential memory leak. However, when the script comes from an LDAP storage, this would cause io leak warnings. - managesieve-login: Fixed handling of AUTHENTICATE command. A second authenticate command would be parsed wrong. This problem was caused by changes in the previous release. - LDA Sieve plugin: Fixed minor memory leak caused by not cleaning up the sieve_discard script. The release is available as follows: http://pigeonhole.dovecot.org/releases/2.2/rc/dovecot-2.2-pigeonhole-0.4.20… http://pigeonhole.dovecot.org/releases/2.2/rc/dovecot-2.2-pigeonhole-0.4.20… Refer to http://pigeonhole.dovecot.org and the Dovecot v2.x wiki for more information. Have fun testing this release candidate and don't hesitate to notify me when there are any problems. Regards, -- Stephan Bosch stephan(a)rename-it.nl

1 0

weakforced
by Mark Moseley 17 Aug '17

17 Aug '17

I've been playing with weakforced, so it fills in the 'fail2ban across a cluster' niche (not to mention RBLs). It seems to work well, once you've actually read the docs :) I was curious if anyone had played with it and was *very* curious if anyone was using it in high traffic production. Getting things to 'work' versus getting them to work *and* handle a couple hundred dovecot servers is a very wide margin. I realize this is not a weakforced mailing list (there doesn't appear to be one anyway), but the users here are some of the likeliest candidates for having tried it out. Mainly I'm curious if weakforced can handle serious concurrency and whether the cluster really works under load.

4 5