Dovecot release v2.3.7

[Tom Sommer]

LMTP is broken on director:

Jul 13 13:42:41 lmtp(34824): Panic: file smtp-params.c: line 685 
(smtp_params_mail_add_body_to_event): assertion failed: ((caps & 
SMTP_CAPABILITY_8BITMIME) != 0)
Jul 13 13:42:41 lmtp(34824): Error: Raw backtrace: 
/usr/lib64/dovecot/libdovecot.so.0(+0xdf06a) [0x7f561203806a] -> 
/usr/lib64/dovecot/libdovecot.so.0(+0xdf0b1) [0x7f56120380b1] -> 
/usr/lib64/dovecot/libdovecot.so.0(+0x40161) [0x7f5611f99161] -> 
/usr/lib64/dovecot/libdovecot.so.0(+0x44fc4) [0x7f5611f9dfc4] -> 
/usr/lib64/dovecot/libdovecot.so.0(smtp_client_transaction_start+0x78) 
[0x7f5611fa7a58] -> dovecot/lmtp [172.17.165.6 MAIL 
FROM](lmtp_proxy_rcpt+0xa37) [0x558eaf181d67] -> dovecot/lmtp 
[172.17.165.6 MAIL FROM](client_default_cmd_rcpt+0x9e) [0x558eaf17eebe] 
-> /usr/lib64/dovecot/libdovecot.so.0(smtp_server_cmd_rcpt+0x222) 
[0x7f5611fafd12] -> 
/usr/lib64/dovecot/libdovecot.so.0(smtp_server_command_new+0x150) 
[0x7f5611fb58a0] -> /usr/lib64/dovecot/libdovecot.so.0(+0x606c8) 
[0x7f5611fb96c8] -> 
/usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x55) 
[0x7f561204f275] -> 
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x95) 
[0x7f561204f3a5] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) 
[0x7f561204f588] -> 
/usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) 
[0x7f5611fc68f3] -> dovecot/lmtp [172.17.165.6 MAIL FROM](main+0x289) 
[0x558eaf17dc19] -> /lib64/libc.so.6(__libc_start_main+0x100) 
[0x7f5611be3d20] -> dovecot/lmtp [172.17.165.6 MAIL FROM](+0x5849) 
[0x558eaf17d849]


---
Tom

On 2019-07-12 14:29, Aki Tuomi via dovecot wrote:
> Hi!
> 
> We are pleased to release Dovecot release v2.3.7.
> 
> Tarball is available at
> 
> https://dovecot.org/releases/2.3/dovecot-2.3.7.tar.gz
> https://dovecot.org/releases/2.3/dovecot-2.3.7.tar.gz.sig
> 
> Binary packages are available at https://repo.dovecot.org/
> 
> Changes
> -------
> 
> * fts-solr: Removed break-imap-search parameter
> + Added more events for the new statistics, see
>   https://doc.dovecot.org/admin_manual/list_of_events/
> + mail-lua: Add IMAP metadata accessors, see
>   https://doc.dovecot.org/admin_manual/lua/
> + Add event exporters that allow exporting raw events to log files and
>   external systems, see
>   https://doc.dovecot.org/configuration_manual/event_export/
> + SNIPPET is now PREVIEW and size has been increased to 200 characters.
> + Add body option to fts_enforced. This triggers building FTS index 
> only
>   on body search, and an error using FTS index fails the search rather
>   than reads through all the mails.
> - Submission/LMTP: Fixed crash when domain argument is invalid in a
>   second EHLO/LHLO command.
> - Copying/moving mails using Maildir format loses IMAP keywords in the
>   destination if the mail also has no system flags.
> - mail_attachment_detection_options=add-flags-on-save caused email body
>   to be unnecessarily opened when FETCHing mail headers that were
>   already cached.
> - mail attachment detection keywords not saved with maildir.
> - dovecot.index.cache may have grown excessively large in some
>   situations. This happened especially when using autoexpunging with
>   lazy_expunge folders. Also with mdbox format in general the cache 
> file
>   wasn't recreated as often as it should have.
> - Autoexpunged mails weren't immediately deleted from the disk. 
> Instead,
>   the deletion from disk happened the next time the folder was opened.
>   This could have caused unnecessary delays if the opening was done by
>   an interactive IMAP session.
> - Dovecot's TCP connections sometimes add extra 40ms latency due to not
>   enabling TCP_NODELAY. HTTP and SMTP/LMTP connections weren't
>   affected, but everything else was. This delay wasn't always visible -
>   only in some situations with some message/packet sizes.
> - imapc: Fix various crash conditions
> - Dovecot builds were not always reproducible.
> - login-proxy: With shutdown_clients=no after config reload the
>   existing connections could no longer be listed or kicked with 
> doveadm.
> - "doveadm proxy kick" with -f parameter caused a crash in some
>   situations.
> - Auth policy can cause segmentation fault crash during auth process
>   shutdown if all auth requests have not been finished.
> - Fix various minor bugs leading into incorrect behaviour in mailbox
>   list index handling. These rarely caused noticeable problems.
> - LDAP auth: Iteration accesses freed memory, possibly crashing
>   auth-worker
> - local_name { .. } filter in dovecot.conf does not correctly support
>   multiple names and wildcards were matched incorrectly.
> - replicator: dsync assert-crashes if it can't connect to remote TCP
>   server.
> - config: Memory leak in config process when ssl_dh setting wasn't
>   set and there was no ssl-parameters.dat file.
>   This caused config process to die once in a while
>   with "out of memory".
> 
> ---
> Aki Tuomi
> Open-Xchange oy