[Dovecot-news] v2.2.27 released



Note that the download URLs are now https with a certificate from Let’s Encrypt.

`` + Added mail_crypt plugin that allows encryption of stored emails. See http://wiki2.dovecot.org/Plugins/MailCrypt
 + stats: Global stats can be sent to Carbon server by setting stats_carbon_server=ip:port
 + imap/pop3 proxy: If passdb returns proxy_not_trusted, don't send ID/XCLIENT
 + Added generic hash modifier for %variables: %{<hash algorithm>;rounds=<n>,truncate=<bits>,salt=s>:field}
   Hash algorithm is any of the supported ones, e.g. md5, sha1, sha256. Also "pkcs5" is supported using SHA256. For example: %{sha256:user} or %{md5;truncate=32:user}.
 + Added support for SHA3-256 and SHA3-512 hashes.
 + config: Support DNS wildcards in local_name, e.g. local_name *.example.com { .. } matches anything.example.com, but not multiple.anything.example.com.
 + config: Support multiple names in local_name, e.g. local_name "1.example.com 2.example.com" { .. }
 - Fixed crash in auth process when auth-policy was configured and authentication was aborted/failed without a username set.
 - director: If two users had different tags but the same hash, the users may have been redirected to the wrong tag's hosts.
 - Index files may have been thought incorrectly lost, causing "Missing middle file seq=.." to be logged and index rebuild. This happened more easily with IMAP hibernation enabled.
 - Various fixes to restoring state correctly in un-hibernation.
 - dovecot.index files were commonly 4 bytes per email too large. This is because 3 bytes per email were being wasted that could have been used for IMAP keywords.
 - Various fixes to handle dovecot.list.index corruption better.
 - lib-fts: Fixed assert-crash in address tokenizer with specific input.
 - Fixed assert-crash in HTML to text parsing with specific input (e.g. for FTS indexing or snippet generation)
 - doveadm sync -1: Fixed handling mailbox GUID conflicts.
 - sdbox, mdbox: Perform full index rebuild if corruption is detected inside lib-index, which runs index fsck.
 - quota: Don't skip quota checks when moving mails between different quota roots.
 - search: Multiple sequence sets or UID sets in search parameters weren't handled correctly. They were incorrectly merged together.

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