Log message:
dovecot2: updated to 2.3.3

2.3.3:
* doveconf hides more secrets now in the default output.
* ssl_dh setting is no longer enforced at startup. If it's not set and
  non-ECC DH key exchange happens, error is logged and client is
  disconnected.

+ Added log_debug=<filter> setting.
+ Added log_core_filter=<log filter> setting.
+ quota-clone: Write to dict asynchronously
+ --enable-hardening attempts to use retpoline Spectre 2 mitigations
+ lmtp proxy: Support source_ip passdb extra field.
+ doveadm stats dump: Support more fields and output stddev by default.
+ push-notification: Add SSL support for OX backend.
- NUL bytes in mail headers can cause truncated replies when fetched.
- director: Conflicting host up/down state changes may in some rare
  situations ended up in a loop of two directors constantly overwriting
  each others' changes.
- director: Fix hang/crash when multiple doveadm commands are being
  handled concurrently.
- director: Fix assert-crash if doveadm disconnects too early
- virtual plugin: Some searches used 100% CPU for many seconds
- dsync assert-crashed with acl plugin in some situations.
- mail_attachment_detection_options=add-flags-on-save assert-crashed
  with some specific Sieve scripts.
- Mail snippet generation crashed with mails containing invalid
  Content-Type:multipart header.
- Log prefix ordering was different for some log lines.
- quota: With noenforcing option current quota usage wasn't updated.
- auth: Kerberos authentication against Samba assert-crashed.
- stats clients were unnecessarily chatty with the stats server.
- imapc: Fixed various assert-crashes when reconnecting to server.
- lmtp, submission: Fix potential crash if client disconnects while
  handling a command.
- quota: Fixed compiling with glibc-2.26 / support libtirpc.
- fts-solr: Empty search values resulted in 400 Bad Request errors
- fts-solr: default_ns parameter couldn't be used
- submission server crashed if relay server returned over 7 lines in
  a reply (e.g. to EHLO)

Log message:
dovecot2: updated to 2.3.2.1

v2.3.2 still had a few unexpected bugs:
- SSL/TLS servers may have crashed during client disconnection
- lmtp: With lmtp_rcpt_check_quota=yes mail deliveries may have
  sometimes assert-crashed.
- v2.3.2: "make check" may have crashed with 32bit systems

v2.3.2 is mainly a bugfix release. It contains all the changes in v2.2.36, as \ 
well as a bunch of other fixes (mainly for v2.3-only bugs). Binary packages are \ 
already in https://repo.dovecot.org/
* old-stats plugin: Don't temporarily enable PR_SET_DUMPABLE while
  opening /proc/self/io. This may still cause security problems if the
  process is ptrace()d at the same time. Instead, open it while still
  running as root.
+ doveadm: Added mailbox cache decision&remove commands. See
  doveadm-mailbox(1) man page for details.
+ doveadm: Added rebuild attachments command for rebuilding
  $HasAttachment or $HasNoAttachment flags for matching mails. See
  doveadm-rebuild(1) man page for details.
+ cassandra: Use fallback_consistency on more types of errors
+ lmtp proxy: Support outgoing SSL/TLS connections
+ lmtp: Add lmtp_rawlog_dir and lmtp_proxy_rawlog_dir settings.
+ submission: Add support for rawlog_dir
+ submission: Add submission_client_workarounds setting.
+ lua auth: Add password_verify() function and additional fields in
  auth request.
- doveadm-server: TCP connections are hanging when there is a lot of
  network output. This especially caused hangs in dsync-replication.
- Using multiple type=shared mdbox namespaces crashed
- mail_fsync setting was ignored. It was always set to "optimized".
- lua auth: Fix potential crash at deinit
- SSL/TLS servers may have crashed if client disconnected during
  handshake.
- SSL/TLS servers: Don't send extraneous certificates to client when
  alt certs are used.
- lda, lmtp: Return-Path header without '<' may have assert-crashed.
- lda, lmtp: Unencoded UTF-8 in email address headers may assert-crash
- lda: -f parameter didn't allow empty/null/domainless address
- lmtp, submission: Message size limit was hardcoded to 40 MB.
  Exceeding it caused the connection to get dropped during transfer.
- lmtp: Fix potential crash when delivery fails at DATA stage
- lmtp: login_greeting setting was ignored
- Fix to work with OpenSSL v1.0.2f
- systemd unit restrictions were too strict by default
- Fix potential crashes when a lot of log output was produced
- SMTP client may have assert-crashed when sending mail
- IMAP COMPRESS: Send "end of compression" marker when disconnecting.
- cassandra: Fix consistency=quorum to work
- dsync: Lock file generation failed if home directory didn't exist
- Snippet generation for HTML mails didn't ignore &entities inside
  blockquotes, producing strange looking snippets.
- imapc: Fix assert-crash if getting disconnected and after
  reconnection all mails in the selected mailbox are gone.
- pop3c: Handle unexpected server disconnections without assert-crash
- fts: Fixes to indexing mails via virtual mailboxes.
- fts: If mails contained NUL characters, the text around it wasn't
  indexed.
- Obsolete dovecot.index.cache offsets were sometimes used. Trying to
  fetch a field that was just added to cache file may not have always
  found it.

Log message:
dovecot2: update to 2.3.1

Changes:
* Submission server support improvements and bug fixes
  - Lots of bug fixes to submission server
* API CHANGE: array_idx_modifiable will no longer allocate space
 - Particularly affects how you should check MODULE_CONTEXT result, or use \ 
REQUIRE_MODULE_CONTEXT.

+ mail_attachment_detection_options setting controls when
  $HasAttachment and $HasNoAttachment keywords are set for mails.
+ imap: Support fetching body snippets using FETCH (SNIPPET) or
  (SNIPPET (LAZY=FUZZY))
+ fs-compress: Automatically detect whether input is compressed or not.
  Prefix the compression algorithm with "maybe-" to enable the
  detection, for example: "compress:maybe-gz:6:..."
+ Added settings to change dovecot.index* files' optimization behavior.
  See https://wiki2.dovecot.org/IndexFiles#Settings
+ Auth cache can now utilize auth workers to do password hash
  verification by setting auth_cache_verify_password_with_worker=yes.
+ Added charset_alias plugin. See
  https://wiki2.dovecot.org/Plugins/CharsetAlias
+ imap_logout_format and pop3_logout_format settings now support all of the \ 
generic variables (e.g. %{rip}, %{session}, etc.)

Log message:
Add p11-kit to gnutls/bl3.mk and bump dependencies.

Log message:
mail/dovecot2: update to 2.3.0.1

Small patch release to fix the worst bugs in v2.3.0. v2.3.1 is coming in about a \ 
month with a lot more changes.

 * CVE-2017-15130: TLS SNI config lookups may lead to excessive
   memory usage, causing imap-login/pop3-login VSZ limit to be reached
   and the process restarted. This happens only if Dovecot config has
   local_name { } or local { } configuration blocks and attacker uses
   randomly generated SNI servernames.
 * CVE-2017-14461: Parsing invalid email addresses may cause a crash or
   leak memory contents to attacker. For example, these memory contents
   might contain parts of an email from another user if the same imap
   process is reused for multiple users. First discovered by Aleksandar
   Nikolic of Cisco Talos. Independently also discovered by "flxflndy"
   via HackerOne.
 * CVE-2017-15132: Aborted SASL authentication leaks memory in login
   process.
 * Linux: Core dumping is no longer enabled by default via
   PR_SET_DUMPABLE, because this may allow attackers to bypass
   chroot/group restrictions. Found by cPanel Security Team. Nowadays
   core dumps can be safely enabled by using "sysctl -w
   fs.suid_dumpable=2". If the old behaviour is wanted, it can still be
   enabled by setting:
   import_environment=$import_environment PR_SET_DUMPABLE=1
 - imap-login with SSL/TLS connections may end up in infinite loop

Log message:
dovecot2: Don't automatically add compiler security features.

Log message:
mail/dovecot2: bump ABI dependency to 2.3.0 for dovecot2-pigeonhole.

Log message:
dovecot2: remove now redundant patch.

Heads up by jzu, thanks.

Log message:
Update mail/dovecot2* to 2.3.0.

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.
- doveadm-server: Fix potential hangs with SSL connections
- doveadm proxy: Reading commands' output from v2.2.33+ servers could
  have caused the output to be corrupted or caused a crash.
- Many other smaller fixes

Log message:
dovecot2: update to 2.2.33.2

2.2.33.2:
- 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