What's new

This release introduces a new user interface views providing detailed delivery insights, outbound connection listing and management, as well as a refreshed visual appearance, among other things. Please see the changelog below for a full list of changes. 

Important changes

• The Ubuntu packages no longer depends on halon-extras-rate and halon-extras-dlp, which need to be explicitly installed if you need them

Deprecation warnings

The following new deprecation warnings will appear in preparation for future changes. If you need any help to resolve these warnings, please don't hesitate to contact support@halon.io.

• Use of the post-delivery function GetTLS() has been deprecated in favour of the $arguments["attempt"]["connection"]["tls"] variable
• Use of the per-recipient end-of-DATA function DirectDeliver() and Deliver(["queue" => false]) is deprecated in favour of the MailMessage.send() function
• Use of the per-recipient end-of-DATA variable $transaction is deprecated in favour for the regular variables (eg. $transaction["id"] should be $messageid).
  

Changelog

This is a list of notable changes. You can find the full changelog here.

Added

• Web administration
  • Delivery insights view
  • Outbound connection view and ability to close connections
  • Visual refresh
• Package and repository improvements
  • Builds for Ubuntu 22.04 LTS
  • Packages for extras projects written in Halon script
• MTA
  
  • Ability to change IP address family (v4/v6) preference
  • Support for implicit TLS for outbound connections
  • New outbound TLS mode dane_fallback_require_verify for DANE/MTA-STS coexistence
  • Added peer certificate error and TLSA to post-delivery's attempt information
  • Store last attempt's localip, remoteip and remotemx in the defer queue
• Script language
  • Added domain_publicsuffix() function
  • Added url_parse() function
  • Added insert_function option to cache []
  • Added new match expression
  • Socket.recv may now use multiple flags as an array
  • Added support for body_length in signDKIM()
  • Ability to set properties and the stop flag in for dynamic queue_policy()
• Command line tools
  • halonctl groupby overhaul, adding lots of new functionality
  • halonctl queue update now have a dry-run flag to test queries
  • halonctl process-stats may now output Prometheus compatible formats
• Protobuf API
  • QueueGroupBy by localip as well
  • QueueGroupBy support policy grouping (MX rollup, etc)
  • More ServerConnectionsList information; transactions, local IP and ports

Integrated (VM) package

• Added support for Sophos Live Protection
• Added HTTP submission API support
• Updated Cyren packages to ctasd 5.5.1 and ctipd 4.5.1
• Updated to FreeBSD 12.3-RELEASE-p7 with quarterly packages
• ScanDMARC function how have an option to disable SHA1 signatures (rfc8301)
• Allow reverse lookups for private address space in unbound DNS resolver