OT question, can return-path be customized by sender MTA/MUA? Or must it be envelope?
July 6, 2024 at 1:45 AM, "Mark Fletcher" <ma...@corp.groups.io> wrote: > > On Fri, Jul 5, 2024 at 5:31 AM Jeff Pang via mailop <mailop@mailop.org> > > wrote: > > > > > When an user requests to join mailing list, which address should we > > > > take? The envelope address, or the header From address? > > > > For email subscriptions, we use the header From address. > > > > For email to a list, we look at the header From, Reply-To and then envelope > > address, in that order, to determine if they are a subscriber. > > Cheers, > > Mark > Jeff Pang jeffp...@aol.com _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop