On 9 Apr 2011 14:29:24 -0000 "John Levine" <jo...@taugh.com> wrote:
> >Anyone know of any legitimate use of multiple email addresses in a > >from line? > Yes. I know a few IETF people who do it. Stuff like notes to a > working group from both chairs. RFC 5322 does allow multiple addresses in the From: field, but it says: If the from field contains more than one mailbox specification in the mailbox-list, then the sender field, containing the field name "Sender" and a single mailbox specification, MUST appear in the message. So you could (I suppose) legitimately reject a message with multiple From: addresses that lacks a conforming Sender: header. Regards, David.
