v2.3.2 release candidate released

https://dovecot.org/releases/2.3/rc/dovecot-2.3.2.rc1.tar.gz https://dovecot.org/releases/2.3/rc/dovecot-2.3.2.rc1.tar.gz.sig

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).

• 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.