- CVE-2020-10957: lmtp/submission: A client can crash the server by
sending a NOOP command with an invalid string parameter. This occurs
particularly for a parameter that doesn't start with a double quote.
This applies to all SMTP services, including submission-login, which
makes it possible to crash the submission service without
authentication.
- CVE-2020-10958: lmtp/submission: Sending many invalid or unknown
commands can cause the server to access freed memory, which can lead
to a server crash. This happens when the server closes the connection
with a "421 Too many invalid commands" error. The bad command limit
depends on the service (lmtp or submission) and varies between 10 to
20 bad commands.
- CVE-2020-10967: lmtp/submission: Issuing the RCPT command with an
address that has the empty quoted string as local-part causes the
lmtp service to crash.
Clean up some REINPLACE warnings whilst we're here.
MFH: 2020Q2
Security: 37d106a8-15a4-483e-8247-fcb68b16eaf8
Security: CVE-2020-10957
Security: CVE-2020-10958
Security: CVE-2020-10967
ChangeLog:
* Disable retpoline migitations by default. These can cause severe
performance regressions, so they should be only enabled when
applicable.
* IMAP MOVE now commits transactions in batches of 1000 mails. This
helps especially with lazy_expunge when moving a lot of mails. It
mainly avoids situations where multiple IMAP sessions are running the
same MOVE command and duplicating the mails in the lazy_expunge folder.
With this change there can still be some duplication, but the MOVE
always progresses forward. Also if the MOVE fails at some point, the
changes up to the last 1000 mails are still committed instead of
rolled back. Note that the COPY command behavior hasn't changed,
because it is required by IMAP standard to be an atomic operation.
* IMAP EXPUNGE and CLOSE now expunges mails in batches of 1000 mails.
This helps especially with lazy_expunge when expunging a lot of mails
(e.g. millions) to make sure that the progress always moves forward
even if the process is killed.
* Autoexpunging now expunges mails in batches of 1000 mails. This helps
especially with lazy_expunge when expunging a lot of mails
(e.g. millions) to make sure that the progress always moves forward
even if the process is killed.
+ Add tool for generating sysreport called dovecot-sysreport.
This generates a bundle of information usually needed for support
requests.
+ Add support for the new IMAP \Important SPECIAL-USE flag (RFC 8457).
+ Add metric { group_by } setting. This allows automatically creating
new metrics based on the fields you want to group statistics by.
NOTE: This feature is considered experimental and syntax is subject
to change in future release.
+ auth: Support SCRAM-SHA-256 authentication mechanism.
+ imap: Support the new IMAP STATUS=SIZE extension.
+ Use TCP_QUICKACK to reduce latency for some TCP connections.
+ quota-status: Made the service more robust against erroneous use with
Postfix ACL policies other than smtpd_recipient_restrictions.
+ Add "revision" field support to imap_id_send setting. Using
"revision *" will send in IMAP ID command response the short commit
hash of the Dovecot git source tree HEAD (same as in dovecot --version).
+ IMAP ENVELOPE includes now all addresses when there are multiple
headers (From, To, Cc, etc.) The standard way of having multiple
addresses is to just list them all in a single header. It's
non-standard to have multiple headers. However, since MTAs allow these
mails to pass through and different software may handle them in
different ways, it's better from security point of view to show all
the addresses.
+ Event filters now support using "field_name=" to match a field that
doesn't exist or has an empty value. For example use "error=" to match
only events that didn't fail.
- acl: INBOX ACLs shouldn't apply for IMAP GETMETADATA/SETMETADATA
commands.
- cassandra: CASS_ERROR_SERVER_WRITE_FAILURE error should also be
treated as "uncertain write failure".
- dict-redis: Using quota_clone configured with dict-redis could have
crashed when Redis responded slowly.
- imap-hibernate: Communication trouble with imap-master leads to
segfault.
- imap-hibernate: Unhibernation retrying wasn't working.
- imap: Fixed auth lookup privilege problem when imap process was reused
and user was being un-hibernated.
- Fix potential crash when copying/moving mails within the same folder.
This happened only when there were a lot of fields in dovecot.index.cache.
- lib-index: Recreating dovecot.index.cache file could have crashed when
merging bitmask fields.
- lib-index: Using public/shared folders with INDEXPVT configured to use
private \Seen flags, trying to search seen/unseen in an empty folder
crashes with segfault.
- lib-mail: Large base64-encoded mails weren't decoded properly.
This could have affected searching/indexing mails and message snippet
generation.
- lib-mail: Message with only quoted text could have caused message
snippet to ignore its 200 character limit and return the entire
message. This was added also to dovecot.index.cache file, which
increased disk space and memory usage unnecessarily.
v2.3.9.2 regression (previous versions cached the quoted snippet as
empty). In a large mail quoted text could have become wrongly added
to the snippet, possibly mixed together with non-quoted text.
- lib-smtp: client could have assert-crashed if STARTTLS handshake
finished earlier than usually.
- lib-ssl-iostream: remove -static flag for lib-ssl-iostream linking to
prevent a compile issue.
- lib-storage: Mailbox synchronization may have assert-crashed in some
rare situations.
- lib-storage: mdbox didn't preserve date.saved with dsync.
- lib: Don't require EAI_{ADDRFAMILY,NODATA}, breaks FreeBSD
- master: Some services could respawn unthrottled if they crash during
startup.
- push-notification: Do not send push_notification_finished event if
nothing was done. This happens when mail transaction is started and
ended with no changes.
- quota-status: Addresses with special characters in the local part caused
problems in the interaction between Postfix and Dovecot. Postfix sent
its own internal representation in the recipient field, while Dovecot
expected a valid RFC5321 mailbox address.
- submission-login: SESSION was not correctly encoded field for the
XCLIENT command. Particularly, a '+' character introduced by the
session ID's Base64 encoding causes problems.
- submission: Fix submission_max_mail_size to work correctly on 32-bit
systems.
- submission: Trusted connections crashed in second connection's EHLO
if submission-login { service_count } is something else than 1 (which
is the default).
- submission: XCLIENT command was never used in the protocol exchange
with the relay MTA when submission_backend_capabilities is configured,
even when the relay MTA was properly configured to accept the XCLIENT
command.
- fts-solr: The XML response parser fails to parse large/chunked responses
correctly. This leads to spurious parse errors, most notably:
"Error: fts_solr: received invalid uid '0'".
Bumping PORTREVISION on dovecot-pigeonhole (explicitly ignoring 0.5.10, as
there are compile/configure/hang issues), and dovecot-fts-xapian.
Changelog:
* CVE-2020-7046: Truncated UTF-8 can be used to DoS
submission-login and lmtp processes.
* CVE-2020-7957: Specially crafted mail can crash snippet generation.
MFH: 2020Q1
Security: CVE-2020-7046
Security: CVE-2020-7957
Security: 74db0d02-b140-4c32-aac6-1f1e81e1ad30
* CVE-2019-19722: Mails with group addresses in From or To fields caused
crash in push notification drivers.
- additional fix for blank headers
PORTREVISION bump for mail/dovecot-pigeonhole, mail/dovecot-fts-xapian
*NOT* requesting MFH as 2.3.9 is not in 2019Q4.
Security: b7dc4dde-2e48-43f9-967a-c68461537cf2
Security: CVS-2019-19722
Bump PORTREVISION of mail/dovecot-fts-xapian for version change of dovecot.
Changelog:
Dovecot:
* Changed several event field names for consistency and to avoid
conflicts in parent-child event relationships:
* SMTP server command events: Renamed "name" to "cmd_name"
* Events inheriting from a mailbox: Renamed "name" to "mailbox"
* Server connection events have only "remote_ip", "remote_port",
"local_ip" and "local_port".
* Removed duplicate "client_ip", "ip" and "port".
* Mail storage events: Removed "service" field.
Use "service:<name>" category instead.
* HTTP client connection events: Renamed "host" to "dest_host" and
"port" to "dest_port"
* auth: Drop Postfix socketmap support. It hasn't been working
with recent Postfix versions for a while now.
* push-notification-lua: The "subject" field is now decoded to UTF8
instead of kept as MIME-encoded.
+ push-notification-lua: Added new "from_address", "from_display_name",
"to_address" and "to_display_name" fields. The display names are
decoded to UTF8.
+ Added various new fields to existing events.
See http://doc.dovecot.net/admin_manual/list_of_events.html
+ Add lmtp_add_received_header setting. It can be used to prevent LMTP
from adding "Received:" headers.
+ doveadm: Support SSL/STARTTLS for proxied doveadm connections based on
doveadm_ssl setting and proxy ssl/tls settings.
+ Log filters support now "service:<name>", which matches all events for
the given service. It can also be used as a category.
+ lib: Use libunwind to get abort backtraces with function names
where available.
+ lmtp: When the LMTP proxy changes the username (from passdb lookup)
add an appropriate ORCPT parameter.
- lmtp: Add lmtp_client_workarounds setting to implement workarounds for
clients that send MAIL and RCPT commands with additional spaces before
the path and for clients that omit <> brackets around the path.
See example-config/conf.d/20-lmtp.conf.
- lda/lmtp: Invalid MAIL FROM addresses were rejcted too aggressively.
Now mails from addresses with unicode characters are delivered, but
their Return-Path header will be <> instead of the given MAIL FROM
address.
- lmtp: The lmtp_hdr_delivery_address setting is ignored.
- imap: imap_command_finished event's "args" and "human_args" parameters
were always empty.
- mbox: Seeking in zlib and bzip2 compressed input streams didn't work
correctly.
- imap-hibernate: Process crashed when client got destroyed while it was
attempted to be unhibernated, and the unhibernation fails.
- *-login: Proxying may have crashed if SSL handshake to the backend
failed immediately. This was unlikely to happen in normal operation.
- *-login: If TLS handshake to upstream server failed during proxying,
login process could crash due to invalid memory access.
- *-login: v2.3 regression: Using SASL authentication without initial
response may have caused SSL connections to hang. This happened often
at least with PHP's IMAP library.
- *-login: When login processes are flooded with authentication attempts
it starts logging errors about "Authentication server sent unknown id".
This is still expected. However, it also caused the login process to
disconnect from auth server and potentially log some user's password
in the error message.
- dict-sql: SQL prepared statements were not shared between sessions.
This resulted in creating a lot of prepared statements, which was
especially inefficient when using Cassandra backend with a lot of
Cassandra nodes.
- auth: auth_request_finished event didn't have success=yes parameter
set for successful authentications.
- auth: userdb dict - Trying to list users crashed.
- submission: Service could be configured to allow anonymous
authentication mechanism and anonymous user access.
- LAYOUT=index: Corrupted dovecot.list.index caused folder creation to
panic.
- doveadm: HTTP server crashes if request target starts with double "/".
- dsync: Remote dsync started hanging if the initial doveadm
"dsync-server" command was sent in the same TCP packet as the
following dsync handshake. v2.3.8 regression.
- lib: Several "input streams" had a bug that in some rare situations
might cause it to access freed memory. This could lead to crashes or
corruption.
The only currently known effect of this is that using zlib plugin with
external mail attachments (mail_attachment_dir) could cause fetching
the mail to return a few bytes of garbage data at the beginning of the
header. Note that the mail wasn't saved corrupted, but fetching it
caused corrupted mail to be sent to the client.
- lib-storage: If a mail only has quoted content, use the quoted text
for generating message snippet (IMAP PREVIEW) instead of returning
empty snippet.
- lib-storage: When vsize header was rebuilt, newly calculated message
sizes were added to dovecot.index.cache instead of being directly
saved into vsize records in dovecot.index.
- lib: JSON generator was escaping UTF-8 characters unnecessarily.
Pigeonhole:
+ Added events for Sieve and ManageSieve, see
https://doc.dovecot.org/admin_manual/list_of_events/#pigeonhole
+ Pigeonhole: Implement the Sieve "special-use" extension described in
RFC 8579.
- duplicate: Test only compared the handles which would cause
different values to be cached as the same duplicate test. Fix to also
compare the actual hashes.
- imap_sieve_filter: IMAP FILTER Command had various bugs in error
handling. Errors may have been duplicated for each email, errors
may have been missing entirely, command tag and ERRORS/WARNINGS
parameters were swapped.
Add a note to the dovecot port about the requirement to bump the portrevision
each time dovecot is updated
PR: 241147
Reported by: Matthias Pfaller <matthias.pfaller@familie-pfaller.de>
release notes:
dovecot:
Changes
+ Added mail_delivery_started and mail_delivery_finished events, see
https://doc.dovecot.org/admin_manual/list_of_events/ for details.
+ dsync-replication: Don't replicate users who have "noreplicate" extra
field in userdb.
+ doveadm service status: Show total number of processes created.
+ When logging to syslog, use instance_name setting's value for the
ident. This commonly is added as a log prefix.
+ Base64 encoding/decoding code was rewritten with additional features.
It shouldn't cause any user visible changes.
- v2.3.7 regression: If a folder only receives new mails without any
other mail access, dovecot.index.log keeps growing forever and
dovecot.index keeps being rewritten for every mail delivery.
- dsync-replication may lose keywords after syncing mails restored from
another replica. This only happened if the mail only had keywords and no
system flags.
- event filters: Non-textual event fields could not be filtered using
wildcards.
- auth: Scope parameter was missing from OAuth password grant request.
- doveadm client-server communication may hang in some situations. It is
also using unnecessarily small TCP/IP packet sizes.
- doveadm who and kick did not flush protocol output correctly.
- imap: SETMETADATA with literal value would delete the metadata value
instead of updating it.
- imap: When client issues FETCH PREVIEW (LAZY=FUZZY) command, the
caching decisions should be updated so that newly saved mails will have
the preview cached.
- With mail_nfs_index=yes and/or mail_nfs_storage=yes setuid/setgid
permission bits in some files may have become dropped with some NFS
servers. Changed NFS flushing to now use chmod() instead of chown().
- quota: warnings did not work if quota root was noenforcing
- acl: Global ACL file ignored the last line if it didn't end with LF.
- doveadm stats dump: With JSON formatter output numbers using the
number type instead of as strings
- lmtp_proxy: Ensure that real_* variables are correctly set when using
lmtp_proxy.
- event exporter: http-post driver had hardcoded timeout and did not
support DNS lookups or TLS connections.
- auth: Fix user iteration to work with userdb passwd with glibc v2.28.
- auth: auth service can crash if auth-policy JSON response is invalid
or returned too fast.
- In some rare situations "ps" output could have shown a lot of "?"
characters after Dovecot process titles.
- When dovecot.index.pvt is empty, an unnecessary error is logged:
Error: .../dovecot.index.pvt reset, view is now inconsistent
- SMTP address encoder duplicated initial double quote character when
the localpart of an address ended in '..'. For example
"user+..@example.com" became ""user+.."@example.com in a
sieve redirect.
pigeonhole:
Changes
- Sieve may leak resources in rare cases when a redirect, vacation or
report action fails to send the message. This mainly applies when Sieve
is executed in IMAP context; i.e., for the IMAPSIEVE or FILTER=SIEVE
capabilities.
Changes
-------
* CVE-2019-11500: IMAP protocol parser does not properly handle NUL byte
when scanning data in quoted strings, leading to out of bounds heap
memory writes. Found by Nick Roessler and Rafi Rubin.
MFH: 2019Q3
Security: CVE-2019-11500
[PATCH] lib: ostream-file: Don't log any errors when setting
TCP_NODELAY
It's likely never useful to log the error, and it seems more and more
unexpected errors just keep popping up.
Obtained from: upstream git.
dovecot changelog:
* 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".
pigeonhole changelog:
+ vacation: Made the subject for the automatic response message produced
by the Sieve vacation action configurable. Both the default subject
(if the script defines none) and the subject template (e.g. used to
add a subject prefix) can be configured.
- dsync: dsync-replication does not synchronize Sieve scripts.
- imap_sieve_filter: Reduce FILTER=SIEVE verbosity over IMAP connection.
- testsuite: Pigeonhole testsuite segfaulted if it was compiled with
GCC 9
Dovecot changelog:
* CVE-2019-11494: Submission-login crashed with signal 11 due to null pointer access when authentication was aborted by disconnecting.
* CVE-2019-11499: Submission-login crashed when authentication was started over TLS secured channel and invalid authentication message was sent.
* auth: Support password grant with passdb oauth2.
+ Use system default CAs for outbound TLS connections.
+ Simplify array handling with new helper macros.
+ fts_solr: Enable configuring batch_size and soft_commit features.
- lmtp/submission: Fixed various bugs in XCLIENT handling, including a hang when XCLIENT commands were sent infinitely to the remote server.
- lmtp/submission: Forwarded multi-line replies were erroneously sent as two replies to the client.
- lib-smtp: client: Message was not guaranteed to contain CRLF consistently when CHUNKING was used.
- fts_solr: Plugin was no longer compatible with Solr 7.
- Make it possible to disable certificate checking without setting ssl_client_ca_* settings.
- pop3c: SSL support was broken.
- mysql: Closing connection twice lead to crash on some systems.
- auth: Multiple oauth2 passdbs crashed auth process on deinit.
- HTTP client connection errors infrequently triggered a segmentation fault when the connection was idle and not used for a particular client instance.
Pigeonhole changelog:
+ sieve: Redirect loop prevention is sometimes ineffective. Improve existing loop detection by also recognizing the
X-Sieve-Redirected-From header in incoming messages and dropping redirect actions when it points to
the sending account. This header is already added by the redirect action, so this improvement only adds an additional use of this header.
- sieve: Prevent execution of implicit keep upon temporary failure occurring at runtime.
MFH: 2019Q2
Security: CVE-2019-11494
Security: CVE-2019-11499
* CVE-2019-10691: Trying to login with 8bit username containing
invalid UTF8 input causes auth process to crash if auth policy is
enabled. This could be used rather easily to cause a DoS. Similar
crash also happens during mail delivery when using invalid UTF8 in
From or Subject header when OX push notification driver is used.
MFH: 2019Q2
Security: CVE-2019-10691
* CVE-2019-7524: Missing input buffer size validation leads into
arbitrary buffer overflow when reading fts or pop3 uidl header
from Dovecot index. Exploiting this requires direct write access to
the index files.
MFH: 2019Q1
Security: CVE-2019-7524
dovecot changelog:
+ Lua push notification driver: mail keywords and flags are provided in MessageNew and MessageAppend events.
+ submission: Implement support for plugins.
+ auth: When auth_policy_log_only=yes, only log what the policy server response would do without actually doing it.
+ auth: Always log policy server decisions with auth_verbose=yes
- v2.3.[34]: doveadm log errors: Output was missing user/session
- lda: Debug log lines could have shown slightly corrupted
- login proxy: Login processes may have crashed in various ways when login_proxy_max_disconnect_delay was set.
- imap: Fix crash with Maildir+zlib if client disconnects during APPEND
- lmtp proxy: Fix potential assert-crash
- lmtp/submission: Fix crash when SMTP client transaction times out
- submission: Split large XCLIENT commands to 512 bytes per command, so Postfix accepts them.
- submission: Fix crash when client sends invalid BURL command
- submission: relay backend: VRFY command: Avoid forwarding 500 and 502 replies back to client.
- lib-http: Fix potential assert-crash when DNS lookup fails
- lib-fts: Fix search query generation when one language ignores a token (e.g. via stopwords).
pigeonhole changelog:
+ IMAPSieve: Add new plugin/imapsieve_expunge_discarded setting which causes messages discarded by an IMAPSieve script to be expunged immediately, rather than only being marked as "\Deleted" (which is still the default behavior).
- IMAPSieve: Fix panic crash occurring when a COPY command copies
messages from a virtual mailbox where the source messages originate from more than a single real mailbox.
- imap4flags extension: Fix deleting all keywords. When the action
resulted in all keywords being removed, no changes were actually
applied.
- variables extension: Fix truncation of UTF-8 variable content. The maximum size of Sieve variables was enforced by truncating the
variable string content bluntly at the limit, but this does not
consider UTF-8 code point boundaries. This resulted in broken UTF-8 strings. This problem also surfaced for variable modifiers, such as the ":encodeurl" modifier provided by the Sieve "enotify" extension. In that case, the resulting URI escaping could also be truncated inappropriately.
- IMAPSieve, IMAP FILTER=SIEVE: Fix replacing a modified message. Sieve scripts running in IMAPSIEVE or IMAP FILTER=SIEVE context that modify the message, stored the message a second time, rather than replacing the originally stored unmodified message.
- Fix segmentation fault occurring when both the sieve_extprograms
plugin (for the Sieve interpreter) and the imap_filter_sieve plugin (for IMAP) are loaded at the same time. A symbol was defined by both plugins, causing a clash when both were loaded.
* CVE-2019-3814: If imap/pop3/managesieve/submission client has
trusted certificate with missing username field
(ssl_cert_username_field), under some configurations Dovecot
mistakenly trusts the username provided via authentication instead
of failing.
* ssl_cert_username_field setting was ignored with external SMTP AUTH,
because none of the MTAs (Postfix, Exim) currently send the
cert_username field. This may have allowed users with trusted
certificate to specify any username in the authentication. This bug
didn't affect Dovecot's Submission service.
PR: 235523
Submitted by: pascal.christen@hostpoint.ch
MFH: 2019Q1
Security: 1340fcc1-2953-11e9-bc44-a4badb296695
Security: CVE-2019-3814
solr and tika currently use the same http client connection. Upstream
made the attached patches in response to my (ler@) bug report.
Obtained from: upstream mailing list.
dovecot change log:
* The default postmaster_address is now "postmaster@<user domain or
server hostname>". If username contains the @domain part, that's
used. If not, then the server's hostname is used.
* "doveadm stats dump" now returns two decimals for the "avg" field.
+ Added push notification driver that uses a Lua script
+ Added new SQL, DNS and connection events.
See https://wiki2.dovecot.org/Events
+ Added "doveadm mailbox cache purge" command.
+ Added events API support for Lua scripts
+ doveadm force-resync -f parameter performs "index fsck" while opening
the index. This may be useful to fix some types of broken index files.
This may become the default behavior in a later version.
- director: Kicking a user crashes if login process is very slow
- pop3_no_flag_updates=no: Don't expunge DELEted and RETRed messages
unless QUIT is sent.
- auth: Fix crypt() segfault with glibc-2.28+
- imap: Running UID FILTER script with errors assert-crashes
- dsync, pop3-migration: POP3 UIDLs weren't added to
dovecot.index.cache while mails were saved.
- dict clients may have been using 100% CPU while waiting for dict
server to finish commands.
- doveadm user: Fixed user listing via HTTP API
- All levels of Cassandra log messages were logged as Dovecot errors.
- http/smtp client may have crashed after SSL handshake
- Lua auth converted strings that looked like numbers into numbers.
pigeonhole change log:
* Adjustments to several changes in Dovecot v2.3.4 make this Pigeonhole
release dependent on that Dovecot release; it will not compile against
older Dovecot versions. And, conversely, you need to upgrade
Pigeonhole when upgrading Dovecot to v2.3.4.
* The changes regarding the default postmaster_address in Dovecot v2.3.4
mainly apply to Pigeonhole. The new default should work for all
existing installations, thereby fixing several reported v2.3/v0.5
migration problems.
- IMAP FILTER=SIEVE capability: Fix assert crash occurring when running
UID FILTER on a Sieve script with errors.
