April 28, 2006
6:23 p.m.
Not quite. http://new.openspf.org/FAQ/Envelope_from_scope
Neal Groothuis wrote:
Bob Puff@NLE wrote:
Don't forget to consider things like SPF, which I think uses the sender field. Whatever is used for SPF _must_ be the domain of the mailman box, or you're gonna run into a pack of trouble.
SPF is based on the client name presented in the HELO command in an SMTP transaction and the return path, as given in the MAIL command. The Sender: field is not used.