- Dovecot-news - dovecot.org

v2.3.0 release candidate released
by Timo Sirainen 18 Dec '17

18 Dec '17

https://dovecot.org/releases/2.3/rc/dovecot-2.3.0.rc1.tar.gz https://dovecot.org/releases/2.3/rc/dovecot-2.3.0.rc1.tar.gz.sig It's finally time for v2.3 release branch! There are several new and exciting features in it. I'm especially happy about the new logging and statistics code, which will allow us to generate statistics for just about everything. We didn't have time to implement everything we wanted for them yet, and there especially aren't all that many logging events yet that can be used for statistics. We'll implement those to v2.3.1, which might also mean that some of the APIs might still change in v2.3.1 if that's required. We also have new lib-smtp server code, which was used to implement SMTP submission server and do a partial rewrite for LMTP server. Please test these before v2.3.0 to make sure we don't have any bad bugs left! BTW. The v2.3.0 will most likely be signed with a new PGP key ED409DA1. Some of the larger changes: * Various setting changes, see https://wiki2.dovecot.org/Upgrading/2.3 * Logging rewrite started: Logging is now based on hierarchical events. This makes it possible to do various things, like: 1) giving consistent log prefixes, 2) enabling debug logging with finer granularity, 3) provide logs in more machine readable formats (e.g. json). Everything isn't finished yet, especially a lot of the old logging code still needs to be translated to the new way. * Statistics rewrite started: Stats are now based on (log) events. It's possible to gather statistics about any event that is logged. See http://wiki2.dovecot.org/Statistics for details * ssl_dh setting replaces the old generated ssl-parameters.dat * IMAP: When BINARY FETCH finds a broken mails, send [PARSE] error instead of [UNKNOWNCTE] * Linux: core dumping via PR_SET_DUMPABLE is no longer enabled by default due to potential security reasons (found by cPanel Security Team). + Added support for SMTP submission proxy server, which includes support for BURL and CHUNKING extension. + LMTP rewrite. Supports now CHUNKING extension and mixing of local/proxy recipients. + auth: Support libsodium to add support for ARGON2I and ARGON2ID password schemes. + auth: Support BLF-CRYPT password scheme in all platforms + auth: Added LUA scripting support for passdb/userdb. See https://wiki2.dovecot.org/AuthDatabase/Lua - Input streams are more reliable now when there are errors or when the maximum buffer size is reached. Previously in some situations this could have caused Dovecot to try to read already freed memory. - Output streams weren't previously handling failures when writing a trailer at the end of the stream. This mainly affected encrypt and zlib compress ostreams, which could have silently written truncated files if the last write happened to fail (which shouldn't normally have ever happened). - virtual plugin: Fixed panic when fetching mails from virtual mailboxes with IMAP BINARY extension. - Many other smaller fixes

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v2.2.33.2 released
by Timo Sirainen 20 Oct '17

20 Oct '17

https://dovecot.org/releases/2.2/dovecot-2.2.33.2.tar.gz https://dovecot.org/releases/2.2/dovecot-2.2.33.2.tar.gz.sig One more patch release with some fixes: - doveadm: Fix crash in proxying (or dsync replication) if remote is running older than v2.2.33 - auth: Fix memory leak in %{ldap_dn} - dict-sql: Fix data types to work correctly with Cassandra

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Released Pigeonhole v0.4.21 for Dovecot v2.2.33.1.
by Stephan Bosch 13 Oct '17

13 Oct '17

Hello Dovecot users, Here's the definitive 0.4.21 release. There were no changes since the release candidate. Changelog v0.4.21: * redirect action: Always set the X-Sieve-Redirected-From header to sieve_user_email if configured. Before, it would use the envelope recipient instead if available, which makes no sense if the primary e-mail address is available. + vacation extension: Allow ignoring the envelope sender while composing the "To:" header for the reply. Normally, the "To:" header is composed from the address found in the "Sender", "Resent-From" or "From" headers that is equal to the envelope sender. If none is then found, the bare envelope sender is used. This change adds a new setting "sieve_vacation_to_header_ignore_envelope". With this setting enabled, the "To:" header is always composed from those headers in the source message. The new setting thus allows ignoring the envelope, which is useful e.g. when SRS is used. + vacation extension: Compose the "To:" header from the full sender address found in the first "Sender:", "From:" or "Resent-From:" header. Before, it would create a "To:" header without a phrase part. The new behavior is nicer, since the reply will be addressed to the sender by name if possible. - LDA Sieve plugin: Fixed sequential execution of LDAP-based scripts. A missing LDAP-based script could cause the script sequence to exit earlier. - sieve-filter: Removed the (now) duplicate utf8 to mutf7 mailbox name conversion. This caused problems with mailbox names containing UTF-8 characters. The Dovecot API was changed years ago, but apparently sieve-filter was never updated. The release is available as follows: https://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.21.t… https://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.21.t… Refer to http://pigeonhole.dovecot.org and the Dovecot v2.x wiki for more information. Have fun testing this release and don't hesitate to notify me when there are any problems. Regards, -- Stephan Bosch stephan(a)rename-it.nl

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v2.2.33.1 released
by Timo Sirainen 11 Oct '17

11 Oct '17

https://dovecot.org/releases/2.2/dovecot-2.2.33.1.tar.gz https://dovecot.org/releases/2.2/dovecot-2.2.33.1.tar.gz.sig Oops, one a bit too bad bug was left in the release, so fixing it here. - dovecot-lda was logging to stderr instead of to the log file.

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v2.2.33 released
by Timo Sirainen 10 Oct '17

10 Oct '17

https://dovecot.org/releases/2.2/dovecot-2.2.33.tar.gz https://dovecot.org/releases/2.2/dovecot-2.2.33.tar.gz.sig We're getting close to the last v2.2.x releases. Hopefully we'll have the first v2.3 beta releases out soon. * doveadm director commands wait for the changes to be visible in the whole ring before they return. This is especially useful in testing. * Environments listed in import_environment setting are now set or preserved when executing standalone commands (e.g. doveadm) + doveadm proxy: Support proxying logs. Previously the logs were visible only in the backend's logs. + Added %{if}, see https://wiki2.dovecot.org/Variables#Conditionals + Added a new notify_status plugin, which can be used to update dict with current status of a mailbox when it changes. See https://wiki2.dovecot.org/Plugins/NotifyStatus + Mailbox list index can be disabled for a namespace by appending ":LISTINDEX=" to location setting. + dsync/imapc: Added dsync_hashed_headers setting to specify which headers are used to match emails. + pop3-migration: Add pop3_migration_ignore_extra_uidls=yes to ignore mails that are visible in POP3 but not IMAP. This could happen if new mails were delivered during the migration run. + pop3-migration: Further improvements to help with Zimbra + pop3-migration: Cache POP3 UIDLs in imapc's dovecot.index.cache if indexes are enabled. These are used to optimize incremental syncs. + cassandra, dict-sql: Use prepared statements if protocol version>3. + auth: Added %{ldap_dn} variable for passdb/userdb ldap - acl: The "create" (k) permission in global acl-file was sometimes ignored, allowing users to create mailboxes when they shouldn't have. - sdbox: Mails were always opened when expunging, unless mail_attachment_fs was explicitly set to empty. - lmtp/doveadm proxy: hostip passdb field was ignored, which caused unnecessary DNS lookups if host field wasn't an IP - lmtp proxy: Fix crash when receiving unexpected reply in RCPT TO - quota_clone: Update also when quota is unlimited (broken in v2.2.31) - mbox, zlib: Fix assert-crash when accessing compressed mbox - doveadm director kick -f parameter didn't work - doveadm director flush <host> resulted flushing all hosts, if <host> wasn't an IP address. - director: Various fixes to handling backend/director changes at abnormal times, especially while ring was unsynced. These could have resulted in crashes, non-optimal behavior or ignoring some of the changes. - director: Use less CPU in imap-login processes when moving/kicking many users. - lmtp: Session IDs were duplicated/confusing with multiple RCPT TOs when lmtp_rcpt_check_quota=yes - doveadm sync -1 fails when local mailboxes exist that do not exist remotely. This commonly happened when lazy_expunge mailbox was autocreated when incremental sync expunged mails. - pop3: rawlog_dir setting didn't work

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Released Pigeonhole v0.4.21.rc1 for Dovecot v2.2.33.rc1.
by Stephan Bosch 09 Oct '17

09 Oct '17

Hello Dovecot users, Here is the Pigeonhole hole release candidate that goes with the Dovecot release candidate. Nothing really special going on, just a few changes and fixes that accumulated over the last few months. Changelog v0.4.21: * redirect action: Always set the X-Sieve-Redirected-From header to sieve_user_email if configured. Before, it would use the envelope recipient instead if available, which makes no sense if the primary e-mail address is available. + vacation extension: Allow ignoring the envelope sender while composing the "To:" header for the reply. Normally, the "To:" header is composed from the address found in the "Sender", "Resent-From" or "From" headers that is equal to the envelope sender. If none is then found, the bare envelope sender is used. This change adds a new setting "sieve_vacation_to_header_ignore_envelope". With this setting enabled, the "To:" header is always composed from those headers in the source message. The new setting thus allows ignoring the envelope, which is useful e.g. when SRS is used. + vacation extension: Compose the "To:" header from the full sender address found in the first "Sender:", "From:" or "Resent-From:" header. Before, it would create a "To:" header without a phrase part. The new behavior is nicer, since the reply will be addressed to the sender by name if possible. - LDA Sieve plugin: Fixed sequential execution of LDAP-based scripts. A missing LDAP-based script could cause the script sequence to exit earlier. - sieve-filter: Removed the (now) duplicate utf8 to mutf7 mailbox name conversion. This caused problems with mailbox names containing UTF-8 characters. The Dovecot API was changed years ago, but apparently sieve-filter was never updated. The release is available as follows: http://pigeonhole.dovecot.org/releases/2.2/rc/dovecot-2.2-pigeonhole-0.4.21… http://pigeonhole.dovecot.org/releases/2.2/rc/dovecot-2.2-pigeonhole-0.4.21… 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

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v2.2.33 release candidate released
by Timo Sirainen 05 Oct '17

05 Oct '17

https://dovecot.org/releases/2.2/rc/dovecot-2.2.33.rc1.tar.gz https://dovecot.org/releases/2.2/rc/dovecot-2.2.33.rc1.tar.gz.sig There are a couple more small changes still coming, but this should be very close to the final release. I'm especially interested in hearing if there are any problems with doveadm log proxying or with director. We've improved our automated director tests quite a lot now, and fixed some rarely occurring bugs. * doveadm director commands wait for the changes to be visible in the whole ring before they return. This is especially useful in testing. * Environments listed in import_environment setting are now set or preserved when executing standalone commands (e.g. doveadm) + doveadm proxy: Support proxying logs. Previously the logs were visible only in the backend's logs. + Added %{if}, see https://wiki2.dovecot.org/Variables#Conditionals + Added a new notify_status plugin, which can be used to update dict with current status of a mailbox when it changes. See https://wiki2.dovecot.org/Plugins/NotifyStatus + Mailbox list index can be disabled for a namespace by appending ":LISTINDEX=" to location setting. + dsync/imapc: Added dsync_hashed_headers setting to specify which headers are used to match emails. + pop3-migration: Add pop3_migration_ignore_extra_uidls=yes to ignore mails that are visible in POP3 but not IMAP. This could happen if new mails were delivered during the migration run. + pop3-migration: Further improvements to help with Zimbra + pop3-migration: Cache POP3 UIDLs in imapc's dovecot.index.cache if indexes are enabled. These are used to optimize incremental syncs. + cassandra, dict-sql: Use prepared statements if protocol version>3. - sdbox: Mails were always opened when expunging, unless mail_attachment_fs was explicitly set to empty. - lmtp/doveadm proxy: hostip passdb field was ignored, which caused unnecessary DNS lookups if host field wasn't an IP - lmtp proxy: Fix crash when receiving unexpected reply in RCPT TO - quota_clone: Update also when quota is unlimited (broken in v2.2.31) - mbox, zlib: Fix assert-crash when accessing compressed mbox - doveadm director kick -f parameter didn't work - doveadm director flush <host> resulted flushing all hosts, if <host> wasn't an IP address. - director: Various fixes to handling backend/director changes at abnormal times, especially while ring was unsynced. These could have resulted in crashes, non-optimal behavior or ignoring some of the changes. - director: Use less CPU in imap-login processes when moving/kicking many users. - lmtp: Session IDs were duplicated/confusing with multiple RCPT TOs when lmtp_rcpt_check_quota=yes - doveadm sync -1 fails when local mailboxes exist that do not exist remotely. This commonly happened when lazy_expunge mailbox was autocreated when incremental sync expunged mails.

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Released Pigeonhole v0.4.20 for Dovecot v2.2.32.
by Stephan Bosch 27 Aug '17

27 Aug '17

Hello Dovecot users, Here's the definitive 0.4.20 release. There were no changes since the release candidate. 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: https://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.20.t… https://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.20.t… Refer to http://pigeonhole.dovecot.org and the Dovecot v2.x wiki for more information. Have fun testing this release and don't hesitate to notify me when there are any problems. Regards, -- Stephan Bosch stephan(a)rename-it.nl

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v2.2.32 released
by Timo Sirainen 24 Aug '17

24 Aug '17

https://dovecot.org/releases/2.2/dovecot-2.2.32.tar.gz https://dovecot.org/releases/2.2/dovecot-2.2.32.tar.gz.sig Two more fixes since rc2. And repeating: There are various changes in this release that can be used to significantly reduce disk IO with: 1) NFS storage especially, but I guess also other remote filesystems and even some with local disks 2) When mail storage and INDEX storage are separated * imapc: Info-level line is logged every time when successfully connected to the remote server. This includes local/remote IP/port, which can be useful for matching against external logs. * config: Log a warning if plugin { key=no } is used explicitly. v2.3 will support "no" properly in plugin settings, but for now any value at all for a boolean plugin setting is treated as "yes", even if it's written as explicit "no". This change will now warn that it most likely won't work as intended. + Various optimizations to avoid accessing files/directories when it's not necessary. Especially avoid accessing mail root directories when INDEX directories point to a different filesystem. + mail_location can now include ITERINDEX parameter. This tells Dovecot to perform mailbox listing from the INDEX path instead of from the mail root path. It's mainly useful when the INDEX storage is on a faster storage. + mail_location can now include VOLATILEDIR=<path> parameter. This is used for creating lock files and in future potentially other files that don't need to exist permanently. The path could point to tmpfs for example. This is especially useful to avoid creating lock files to NFS or other remote filesystems. For example: mail_location=sdbox:~/sdbox:VOLATILEDIR=/tmp/volatile/%2.256Nu/%u + mail_location's LISTINDEX=<path> can now contain a full path. This allows storing mailbox list index to a different storage than the rest of the indexes, for example to tmpfs. + 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. + mail_location can now include BROKENCHAR=<char> parameter. This can be useful with imapc to access mailbox names that aren't valid mUTF-7 charset from remote servers. + If mailbox_list_index_very_dirty_syncs=yes, the list index is no longer refreshed against filesystem when listing mailboxes. This allows the mailbox listing to be done entirely by only reading the mailbox list index. + Added mailbox_list_index_include_inbox setting to control whether INBOX's STATUS information should be cached in the mailbox list index. The default is "no", but it may be useful to change it to "yes", especially if LISTINDEX points to tmpfs. + userdb can return chdir=<path>, which override mail_home for the chdir location. This can be useful to avoid accessing home directory on login. + userdb can return postlogin=<socket> to specify per-user imap/pop3 postlogin socket path. + cassandra: Add support for result paging by adding page_size=<n> parameter to the connect setting. + dsync/imapc, pop3-migration plugin: Strip also trailing tabs from headers when matching mails. This helps with migrations from Zimbra. + imap_logout_format supports now %{appended} and %{autoexpunged} + virtual plugin: Optimize IDLE to use mailbox list index for finding out when something has changed. + Added apparmor plugin. See https://wiki2.dovecot.org/Plugins/Apparmor - virtual plugin: A lot of fixes. In many cases it was also working very inefficiently or even incorrectly. - imap: NOTIFY parameter parsing was incorrectly "fixed" in v2.2.31. It was actually (mostly) working in previous versions, but broken in v2.2.31. - Modseq tracking didn't always work correctly. This could have caused imap unhibernation to fail or IMAP QRESYNC/CONDSTORE extensions to not work perfectly. - mdbox: "Inconsistency in map index" wasn't fixed automatically - dict-ldap: %variable values used in the LDAP filter weren't escaped. - quota=count: quota_warning = -storage=.. was never executed (try #2). v2.2.31 fixed it for -messages, but not for -storage. - imapc: >= 32 kB mail bodies were supposed to be cached for subsequent FETCHes, but weren't. - quota-status service didn't support recipient_delimiter - acl: Don't access dovecot-acl-list files with acl_globals_only=yes - mail_location: If INDEX dir is set, mailbox deletion deletes its childrens' indexes. For example if "box" is deleted, "box/child" index directory was deleted as well (but mails were preserved). - director: v2.2.31 caused rapid reconnection loops to directors that were down.

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v2.2.32 release candidate 2 released
by Timo Sirainen 22 Aug '17

22 Aug '17

https://dovecot.org/releases/2.2/rc/dovecot-2.2.32.rc2.tar.gz https://dovecot.org/releases/2.2/rc/dovecot-2.2.32.rc2.tar.gz.sig A couple of changes since rc1: + Added apparmor plugin. See https://wiki2.dovecot.org/Plugins/Apparmor - director: v2.2.31 caused rapid reconnection loops to directors that were down. Also this was already in rc1's list of changes, but wasn't actually in rc1 yet: - dict-ldap: %variable values used in the LDAP filter weren't escaped. Plus a few other smaller fixes.

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