March 2017 - dovecot - dovecot.org

[Dovecot] [PATCH, RFC] add APOP authentication mechanism
by Andrey Panin 14 Aug '17

14 Aug '17

Hello all, this patch add APOP authentication mechanism to dovecot 1.0-test23. Please take a look. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

3 2

Pacaging/build issues with AIX and vac (dovecot-2.2.25)
by Michael Felt 10 Jun '17

10 Jun '17

Hi. I finally decided it was really time to stop being lazy and really move away from gmail. After I have a server in my basement using power, etc. So I turned on the imap provided - and did not quite cry - it will have to do for now, but imap2 is wanting. A real server yes, but not Linux. (Using linux would require another server AND I would feel I am being lazy again). So, I downloaded dovecot-2.2.25 and tried to build. Configure (messages to stderr) xlc is /usr/vacpp/bin/xlc + CPPFLAGS="-I/opt/include -I/opt/buildaix/include" CFLAGS="-I/opt/include -O2 -qmaxmem=-1 -qarch=pwr5 -I/opt/buildaix/includes ./configure\ --prefix=/opt \ --sysconfdir=/var/dovecot/etc\ --sharedstatedir=/var/dovecot/com\ --localstatedir=/var/dovecot\ --mandir=/usr/share/man\ --infodir=/opt/share/info/dovecot \ > .buildaix/configure.out xlc_r: 1501-216 (W) command option -dM is not recognized - passed to ld xlc_r: 1501-228 (W) input file c not found 1506-297 (S) Unable to open input file null. No such file or directory. ./configure[25617]: rpcgen: not found messages to stderr by make: + make > .buildaix/make.out ./update-version.sh[42]: git: not found. "askpass.c", line 59.18: 1506-359 (I) Automatic variable str contains a const member and is not initialized. It will be initia "guid.c", line 113.18: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will be initiali "iostream-rawlog.c", line 28.18: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will b "istream-base64-decoder.c", line 42.18: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It "istream-base64-encoder.c", line 47.18: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It "istream-jsonstr.c", line 70.26: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will b "mountpoint.c", line 222.39: 1506-068 (W) Operation between types "char*" and "const char*" is not allowed. "istream-decrypt.c", line 68.18: 1506-359 (I) Automatic variable ephemeral_key contains a const member and is not initialized. "istream-decrypt.c", line 276.18: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will "istream-decrypt.c", line 369.26: 1506-359 (I) Automatic variable peer_key contains a const member and is not initialized. It "istream-decrypt.c", line 745.42: 1506-359 (I) Automatic variable db contains a const member and is not initialized. It will b "ostream-encrypt.c", line 135.65: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will "ostream-encrypt.c", line 454.18: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will "dcrypt-openssl.c", line 787.36: 1506-359 (I) Automatic variable key contains a const member and is not initialized. It will b "dcrypt-openssl.c", line 1099.33: 1506-359 (I) Automatic variable secret contains a const member and is not initialized. It wi "dcrypt-openssl.c", line 1295.18: 1506-359 (I) Automatic variable tmp contains a const member and is not initialized. It will "dcrypt-openssl.c", line 1365.18: 1506-359 (I) Automatic variable saltbuf contains a const member and is not initialized. It w "istream-decrypt.c", line 68.18: 1506-359 (I) Automatic variable ephemeral_key contains a const member and is not initialized. "istream-decrypt.c", line 276.18: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will "istream-decrypt.c", line 369.26: 1506-359 (I) Automatic variable peer_key contains a const member and is not initialized. It "istream-decrypt.c", line 745.42: 1506-359 (I) Automatic variable db contains a const member and is not initialized. It will b "ostream-encrypt.c", line 135.65: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will "ostream-encrypt.c", line 454.18: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will "istream-decrypt.c", line 68.18: 1506-359 (I) Automatic variable ephemeral_key contains a const member and is not initialized. "istream-decrypt.c", line 276.18: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will "istream-decrypt.c", line 369.26: 1506-359 (I) Automatic variable peer_key contains a const member and is not initialized. It "istream-decrypt.c", line 745.42: 1506-359 (I) Automatic variable db contains a const member and is not initialized. It will b "ostream-encrypt.c", line 135.65: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will "ostream-encrypt.c", line 454.18: 1506-359 (I) Automatic variable buf contains a const member and is not initialized. It will "test-http-auth.c", line 27.27: 1506-022 (S) "scheme" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 27.37: 1506-196 (W) Initialization between types "struct http_auth_challenge_test* const" and "char*" "test-http-auth.c", line 28.33: 1506-022 (S) "data" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 28.41: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 29.33: 1506-022 (S) "params" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 30.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 30.52: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 30.70: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 30.76: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 33.33: 1506-022 (S) "scheme" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 33.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 43.27: 1506-022 (S) "scheme" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 43.37: 1506-196 (W) Initialization between types "struct http_auth_challenge_test* const" and "char*" "test-http-auth.c", line 44.33: 1506-022 (S) "data" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 44.41: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 45.33: 1506-022 (S) "params" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 46.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 46.52: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 47.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 47.50: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 48.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 48.52: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 49.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 49.53: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 50.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 50.49: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 53.33: 1506-022 (S) "scheme" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 53.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 60.27: 1506-022 (S) "scheme" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 60.37: 1506-196 (W) Initialization between types "struct http_auth_challenge_test* const" and "char*" "test-http-auth.c", line 61.33: 1506-022 (S) "data" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 61.41: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 62.33: 1506-022 (S) "params" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 63.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 63.52: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 64.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 64.51: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 65.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 65.52: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 66.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 66.49: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 69.33: 1506-022 (S) "scheme" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 69.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 70.33: 1506-022 (S) "data" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 70.41: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 71.33: 1506-022 (S) "params" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 72.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 72.52: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 73.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 73.49: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 76.33: 1506-022 (S) "scheme" is not a member of "const struct http_auth_challenges_test". "test-http-auth.c", line 76.43: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 187.27: 1506-196 (W) Initialization between types "struct http_auth_param* const" and "char*" is not a "test-http-auth.c", line 187.39: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 188.27: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 188.36: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 189.27: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 189.36: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 190.27: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 190.34: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 191.27: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 191.34: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 192.27: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 192.33: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 193.27: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 193.37: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 194.27: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 194.39: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 195.27: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 195.37: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 196.27: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. "test-http-auth.c", line 196.33: 1506-026 (S) Number of initializers cannot be greater than the number of aggregate members. make: 1254-004 The error code from the last command is 1. I am quite willing to dig and dig - but I want to be know if there will be any interest and/or support for dovecot on AIX. Sincerely, Michael

3 22

[Dovecot] Dovecot stops with "Fatal: kevent(): Invalid argument"
by Henrik Larsson 09 Jun '17

09 Jun '17

# 2.0.11: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 8.2-STABLE amd64 Dovecot stops with the following logged: - master: Fatal: kevent(): Invalid argument I have found that a diff was created for "src/lib/ioloop-kqueue.c" for a similar issue: http://dovecot.org/pipermail/dovecot/2010-November/054855.html I have patched my system with this and haven't seen the problem since, but I don't know if this is a coincidence. Could you please explain if the diff should actually fix anything or just add some more logging in case it stops again? Best regards Henrik Larsson

4 9

Panic: file dsync-brain-mailbox.c: line 814 ...
by Sander Lepik 04 Jun '17

04 Jun '17

Hi! We have 2 servers replicating each other and after upgrade to 2.2.26.0 we are seeing this in the logs: Primary server: Nov 17 09:37:39 mailhost01 dovecot: dsync-server(user(a)domain.ee): Panic: file dsync-brain-mailbox.c: line 814 (dsync_brain_slave_recv_mailbox): assertion failed: (memcmp(dsync_box->mailbox_guid, local_dsync_box.mailbox_guid, sizeof(dsync_box->mailbox_guid)) == 0) Nov 17 09:37:39 mailhost01 dovecot: dsync-server(user(a)domain.ee): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x9438e) [0x7f3ccceb238e] -> /usr/lib/dovecot/libdovecot.so.0(+0x9447c) [0x7f3ccceb247c] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f3ccce4ba4e] -> dovecot/doveadm-server(dsync_brain_slave_recv_mailbox+0x3d8) [0x7f3ccd8f66f8] -> dovecot/doveadm-server(dsync_brain_run+0x650) [0x7f3ccd8f4110] -> dovecot/doveadm-server(+0x4143b) [0x7f3ccd8f443b] -> dovecot/doveadm-server(+0x5735f) [0x7f3ccd90a35f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7f3cccec6bdc] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10a) [0x7f3cccec809a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7f3cccec6c65] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f3cccec6e08] -> dovecot/doveadm-server(+0x26b99) [0x7f3ccd8d9b99] -> dovecot/doveadm-server(+0x28efc) [0x7f3ccd8dbefc] -> dovecot/doveadm-server(+0x3daba) [0x7f3ccd8f0aba] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7f3cccec6bdc] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10a) [0x7f3cccec809a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7f3cccec6c65] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f3cccec6e08] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f3ccce51f53] -> dovecot/doveadm-server(main+0x19f) [0x7f3ccd8ccdef] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f3ccca94b45] -> dovecot/doveadm-server(+0x19ea6) [0x7f3ccd8ccea6] Nov 17 09:37:39 mailhost01 dovecot: dsync-server(user(a)domain.ee): Fatal: master: service(doveadm): child 42621 killed with signal 6 (core dumps disabled) Secondary server: Nov 17 09:37:40 secondarymailhost01 dovecot: dsync-local(user(a)domain.ee): Error: read(mailhost01.domeen.ee) failed: EOF (last sent=mailbox, last recv=mailbox_state) I'm guessing that it happens during automatic full resync, but that's just guessing. OS is Debian 8 (x86_64) and Dovecot is recompiled from Debian's unstable repository. -- Sander

2 2

Fatal error with IMAP MOVE from a shared mailbox to Trash folder
by Daniele Barresi 30 May '17

30 May '17

Hello everyone. I have a problem using Dovecot 2.2.26 with ACL plugin and deleting e-mails from a shared mailbox. My user doesn't have the "expunge" permission on the shared mailbox, but it has the "write-deleted" permission. So, when I delete a message from the shared mailbox using a client that implements the IMAP MOVE command, it tries to move the message to my Trash folder. Then the server closes the connection to the client (process aborted) and I get three lines in the log file with a backtrace and "Fatal" error. In this case the message doesn't get copied or moved from the shared folder and the client complaints. I found the same thing happens whenever I try to move anything between folders of the shared mailbox itself, while logged in with my user. I can move messages inside my own mailbox just fine. If I try the same operation from a client that uses the IMAP COPY + DELETE commands, no errors are logged and the outcome is as expected: the message gets copied from the shared folder to my Trash and gets the flag "\Deleted" set on the shared folder. My setup is as follows: Dovecot: 2.2.26.0 OS: Ubuntu 16.04.1 LTS CPU architecture: x86_64 Filesystem: ext4 The relevant lines from mail.err log: Dec 27 15:21:18 dovecot dovecot: imap(danielebarresi): Panic: file mail-storage.c: line 2143 (mailbox_save_context_reset): assertion failed: (ctx->copying_via_save) Dec 27 15:21:18 dovecot dovecot: imap(danielebarresi): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x9438e) [0x7fbcd478538e] -> /usr/lib/dovecot/libdovecot.so.0(+0x9447c) [0x7fbcd478547c] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fbcd471ea4e] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x41b78) [0x7fbcd4a50b78] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_save_cancel+0x73) [0x7fbcd4a53d73] -> /usr/lib/dovecot/modules/lib01_acl_plugin.so(+0xe142) [0x7fbcd3f1d142] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x4516d) [0x7fbcd4a5416d] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_move+0x23) [0x7fbcd4a54333] -> dovecot/imap(+0xf9c5) [0x557cf98629c5] -> dovecot/imap(command_exec+0xa6) [0x557cf986f196] -> dovecot/imap(+0x1a4c2) [0x557cf986d4c2] -> dovecot/imap(+0x1a550) [0x557cf986d550] -> dovecot/imap(client_handle_input+0x195) [0x557cf986d915] -> dovecot/imap(client_input+0x85) [0x557cf986de25] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7fbcd4799bdc] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10a) [0x7fbcd479b09a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7fbcd4799c65] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fbcd4799e08] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fbcd4724f53] -> dovecot/imap(main+0x322) [0x557cf9860ca2] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7fbcd4348830] -> dovecot/imap(+0xde1f) [0x557cf9860e1f] Dec 27 15:21:18 dovecot dovecot: imap(danielebarresi): Fatal: master: service(imap): child 6907 killed with signal 6 (core dumped) Dovecot configuration (doveadm -n): # 2.2.26.0 (23d1de6): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.4.0-57-generic x86_64 Ubuntu 16.04.1 LTS auth_cache_negative_ttl = 10 mins auth_cache_size = 2 M auth_master_user_separator = * auth_mechanisms = plain login first_valid_uid = 12 last_valid_uid = 12 mail_location = maildir:~/Maildir mail_plugins = acl quota notify mail_log stats lazy_expunge 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 namespace casellecondivise { list = children location = maildir:%%h/Maildir:INDEXPVT=~/Maildir/shared/%%u prefix = Caselle condivise/%%u/ separator = / subscriptions = no type = shared } namespace expunged { hidden = yes list = no location = maildir:/var/expunged/%n/Expunged prefix = EXPUNGED/ separator = / } namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/etc/dovecot/global-acls:cache_secs=300 acl_shared_dict = file:/etc/dovecot/shared/shared-mailboxes lazy_expunge = EXPUNGED/ lazy_expunge_only_last_instance = yes mail_log_events = delete copy flag_change save undelete expunge mail_log_fields = uid box msgid size quota = maildir:user quota quota_exceeded_message = (Quota exceeded) La casella di posta elettronica del destinatario è piena. quota_rule = *:storage=1G quota_rule2 = Trash:storage=+100M quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=100%% quota-warning 100 %u sieve = file:~/sieve;active=~/.dovecot.sieve stats_command_min_time = 1 mins stats_domain_min_time = 12 hours stats_ip_min_time = 12 hours stats_memory_limit = 32 M stats_refresh = 30 secs stats_session_min_time = 15 mins stats_track_cmds = yes stats_user_min_time = 1 hours } protocols = " imap sieve" service auth { unix_listener /var/spool/postfix/private/auth { group = mail mode = 0666 user = postfix } unix_listener auth-userdb { group = mail user = mail } } service dict { unix_listener dict { group = mail mode = 0600 user = mail } } service imap-login { process_limit = 300 process_min_avail = 2 } service managesieve-login { inet_listener sieve { port = 4190 } } service quota-warning { executable = script /etc/dovecot/scripts/quota-warning.sh unix_listener quota-warning { group = mail user = mail } } service stats { fifo_listener stats-mail { mode = 0600 user = mail } } ssl = required ssl_cert = </etc/ssl/certs/pac.apg23.org.pem ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-sql.conf.ext default_fields = uid=mail gid=mail home=/var/mail/%u master_user=%u driver = sql } userdb { args = /etc/dovecot/dovecot-ldap.conf.ext default_fields = uid=mail gid=mail home=/var/mail/%u master_user=%u driver = ldap } protocol lda { mail_plugins = acl quota notify mail_log stats lazy_expunge sieve } protocol imap { mail_max_userip_connections = 25 mail_plugins = acl quota notify mail_log stats lazy_expunge imap_quota imap_stats } I tested this with different users with the same result. I tested and reproduced the error with Thunderbird and Roundcube. The Apple Mail client uses IMAP COPY + DELETE, instead of IMAP MOVE, and no errors are reported. So I think it's related to the IMAP MOVE implementation on Dovecot server. Has anyone seen the same error? Any suggestions? Is this a Dovecot bug? --- Daniele Barresi

3 4

Plugin "mail_crypt" - using folder keys
by Evgeniy Korneechev 26 May '17

26 May '17

Hi, i have two questions about using "folder keys" for encryption: 1. If i use this method how can i decrypt files manually? 2. If move a letter to another folder (or remove it), it will be unreadable. Log: imap(cloud): Error: read() failed: read(/home/cloud/Maildir/.Sent.test/cur/1485528498.M838579P2267....) failed: Decryption error: no private key available (uid=5, box=Sent.test, read reason=) imap(cloud): Info: Internal error occurred. Refer to server log for more information. or: imap(cloud): Error: read() failed: read(/home/cloud/Maildir/.Trash/cur/1485528906.M150750P3081....) failed: Decryption error: no private key available How fix it? Thank you in advance. ------------------------------------------------ # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.4.39-std-def-alt0.M80P.1 x86_64 ALT 8.1 Server ..... mail_attribute_dict = file:%h/Maildir/dovecot-attributes mail_plugins = $mail_plugins mail_crypt plugin { mail_crypt_curve = secp521r1 mail_crypt_save_version = 2 } ..... -- WBR, BaseALT/ALTLinux Team

3 10

dovecot & iOS
by Dirk Laurenz 12 Apr '17

12 Apr '17

Hello List, i have a working dovecot imap service running with multiple clients running fine, even iOS. What's anying is, that only on iOS ( ) i see a huge bunch of .CONTROL directories - marked grey. It seems to be a copy of the existing folder structure. I don't see this on thunderbird, outlook or even roundcube. Is there any chance to configure dovecot to hide those folders to iOS? Here's some extended Information.... Attached: Screenshot from iOS, where you can see, what i mean dovecot Version: 2.1.7 root@mail01:~# dovecot -n # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 4.9.14+ armv6l Debian 7.11 lda_mailbox_autocreate = yes listen = * mail_location = maildir:~/Maildir:INBOX=~/Maildir/Inbox:LAYOUT=fs:CONTROL=~/Maildir/.CONTROL:INDEX=~/Maildir/.INDEX namespace { inbox = yes location = mailbox { special_use = \Drafts name = Drafts } mailbox { special_use = \Junk name = Junk } mailbox { special_use = \Sent name = Sent } mailbox { special_use = \Sent name = Sent Messages } mailbox { special_use = \Trash name = Trash } prefix = name = inbox } passdb { driver = pam } plugin { antispam_debug_target = syslog antispam_signature = X-DSPAM-Signature antispam_spam = SPAM antispam_verbose_debug = 1 } postmaster_address = postmaster@domain protocols = " imap" service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap { name = imap-login } service login/imap { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } ssl_cert = </etc/dovecot/fullchain.pem ssl_key = </etc/dovecot/private/privkey.pem userdb { driver = passwd } protocol lmtp { service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap { name = imap-login } service login/imap { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } } protocol lda { info_log_path = /var/log/dovecot-lda.log log_path = /var/log/dovecot-lda.log service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap { name = imap-login } service login/imap { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } } protocol imap { mail_plugins = antispam service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap { name = imap-login } service login/imap { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } }

3 6

Meaning of "protocol !indexer-worker"
by Angel L. Mateo 04 Apr '17

04 Apr '17

Hello, I'm configuring dovecot 2.2.28. Comparing with previous versions I have found now in 10-mail.conf the config: protocol !indexer-worker { # If folder vsize calculation requires opening more than this many mails from # disk (i.e. mail sizes aren't in cache already), return failure and finish # the calculation via indexer process. Disabled by default. This setting must # be 0 for indexer-worker processes. #mail_vsize_bg_after_count = 0 } I can see that indexer-worker is the index service in dovecot. But I don't what the '!' means in front of the service name. Any who can explain it to me? -- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868889150 Fax: 868888337

2 2

dsync replication
by George Dimakopoulos 31 Mar '17

31 Mar '17

Is it stable for dovecot 2.2.27 to implement DRBD (or HAST) on block level for maildir data replication instead of using dsync plugin? Regards, George

2 1

Slow performance with large folders over the Internet
by Shawn Heisey 31 Mar '17

31 Mar '17

Dovecot package version is 1:1.2.15-7+deb6u1. It is in Debian 6.0.10, using the Debian package. The server is in my basement at home, and is exposed to the Internet so I can fully access my mail from anywhere. I use IMAP for reading mail. I have a number of folders in my mailbox that have thousands of messages in them, from mailing lists. When I'm at home, I have a LAN connection to the server. It goes through a Cisco firewall that limits the connection speed to 100Mb/s. In this situation, I can open a folder with 25000 messages in it, click on the next unread message that Thunderbird did not know about before, and within a second or two, the message will download, allowing me to view it and reply. When I'm at work, with highly variable network latency between Thunderbird and the server, doing exactly the same thing takes a LOT longer. I have seen it take as long as 15 minutes for a single message. If I open a folder with only a few messages in it, it is fast. The server is not overloaded -- I can log into it with ssh and use "mutt -f" to open a folder directly. Loading thousands of messages into mutt takes a while, but I have no difficulty using the ssh connection and running commandline programs. This suggests that the IMAP communication between the server and the client involves a large amount of back and forth communication when the message count in the folder is high, possibly something for every message in the folder. It happens quickly on a LAN but crawls on a connection with high latency. I can understand it taking a few seconds longer on a high-latency link, but it takes minutes. I do plan on building a new server and migrating to Dovecot 2.x, but I haven't had the time to work on that. Is this a known problem? If so, is it fixed in 2.x? Thanks, Shawn

3 2