number state title milestone due assigned created updated project tags 1998 new Is there an experimental implementation of non-strict mail threading that we can test? None Not scheduled benny 2018-04-27 07:39:12 UTC 2021-12-28 12:20:23 UTC MailMate experimental in-reply-to strict subjects threading 2625 new Threading with Outlook-sent emails None Not scheduled benny 2020-08-12 20:44:07 UTC 2021-12-08 15:58:52 UTC MailMate in-reply-to threads