>>Why do you remove ARC signatures ? Because they have no relevance when you have rewritten both MAIL FROM, RCPT TO, and MIME From, and MIME To. If the mail is forwarded again, then both second forwarding server and final server will test against YOUR server, so it's the second forwarding server that in that case should add ARC signatures.
But forwarding in 2 step is uncommon and useless, better to aim both forwarding addresses to the same final address. >>That might help the message reach the mailbox, but the recipient will >>have to look harder to see who the message claims to have been >>originally sent by. Agreed with that. The info is in "Reply-To" instead. It's a tricky thing, because writing From: "[email protected]" <[email protected]> may trip anti-phishing / anti-spam systems. If you absolutely must preserve sender information, encapsulate the mail in a new message/rfc822 object instead... So a mail that looks like this (if forwarded_user is a forward to [email protected]): From: [email protected] To: [email protected] Subject: Hey Content-Type: text/plain Is sent as: From: [email protected] To: [email protected] Subject: Fwd: Hey Content-Type: message/rfc822; boundary=1234 Encapsulated email follows --1234 From: [email protected] To: [email protected] Subject: Hey Content-Type: text/plain --1234-- >>Note. This example is confusing Oooh sorry about that. I tried to be clear with [email protected] being the sender, [email protected] being the address with a forward configured, and [email protected] being the forward target. Replaced [email protected] as [email protected] instead. -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## [email protected] ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
