Revision history for Mail-Milter-Authentication-ARC
2.20180911 2018-09-11 13:03:03+10:00 Australia/Melbourne
        - Fix detection of domain in identity when inheriting DKIM results.
2.20180903 2018-09-03 15:52:55+10:00 Australia/Melbourne
        - Option to lookup trusted arc domains via DNS
2.20180612 2018-06-12 13:47:27+10:00 Australia/Melbourne
        - Follow RFC 8301 security recommendations by default
        - Handle full identities in override
2.20180521 2018-05-21 14:41:56+10:00 Australia/Melbourne
        - Option to pull values from a trusted ARC chain for use elsewhere
        - Manually check timeout status in key stages
2.20180510 2018-05-10 15:15:15+10:00 Australia/Melbourne
        - Improve handling of timeouts
2.20180318 2018-03-18 Australia/Melbourne
        - Pass headers as objects
        - Change build system to dist zilla
1.1.6   2017-12-18
        - Fix bug which prevented ARCSealing when Domain != ServerId
1.1.5   2017-12-16
        - First production ready release
1.1.3   2017-10-02
        - First public release of ARC handler
        - This handler is experimental