On 02/05/2018 12:22 AM, Stephen J. Turnbull wrote: > > According to RFC, Message-ID is an originator field, and MUST be > present and MUST be unique.
Do you have a reference for this? I thought this was correct, but I recently looked it up in RFC 5322 and predecessors (see <https://lists.mailman3.org/archives/list/mailman-us...@mailman3.org/thread/UCH46WS4RII5HKZWGQTBUDUHZMJZDFNC/>, and those RFCs at least say it's optional and SHOULD be present. -- Mark Sapiro <m...@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org
