Why would you change the from address? The whole point here is to forward, not re-mail. Everything should be forwarded. I kinda agree with what you said, but t

Why would you change the from address? The whole point here is to forward, not re-mail. Everything should be forwarded. I kinda agree with what you said, but the point is that you shouldnt be mangling the from address when forwarding. That will definitely break DKIM, as its actually a required header fields in the sig - but theres NO reason to do that. p.s. Ive clarified that i meant "original message" not "message body" in my post. p.p.s Actually, I do think we are in agreement. I mentioned elsewhere that we dont know what the intent was - relay or origin, but in no case should they sign with the relays domain key.