[MM3-users] Re: Shorted Subjects in Mailman

Stephan Krinetzki writes:

and with the "Mailman header" I mean "Thread-Topic" like in https://pastebin.com/0ehnkFBg

That's not Mailman. It appears to be a Microsoft thing from a quick web search. No RFCs appear to define it. (That's not to say Microsoft can't use it, just that it's not an Internet mail standard.)

Steve