On Tue, 2017-10-24 at 13:22 +0200, Merijn van den Kroonenberg wrote: > > Hello all, I was the original poster of this topic but was away for a > > couple of days. > > I find it amazing to see the number of suggestions and ideas that have > > come up here. > > > > However none of the constuctions matched "my" From: lines of the form > > > > From: "Firstname Lastname@" <recipient-domain.com > > sendern...@real-senders-domain.com > > <mailto:sendern...@real-senders-domain.com>>
> My comments in this mail are only about the > "us...@companya.com" <us...@companyb.com> > situation, not about actual double from addresses. Indeed, in this thread multiple different forms of "email address alike in From: sender real name" have surfaced. This type is occasionally used to try to look legit by using real, valid addresses of the recipient's domain (a colleague) instead of a real name, wich is harder to get correct and easier for humans to spot irregularities in. The OP's form looks like a broken From header and an intermediate SMTP choking on and rewriting it. -- Karsten Bräckelmann -- open source. hacker. assassin.
