Showing posts with the label ARC

ARC: What is it and why should you care?

ARC ( Authenticated Received Chain ) is an email authentication mechanism, sort of. The point of ARC is to encapsulate a check of email authentication results and include it in forwarded mail. If I receive email at an address, then I forward mail to another address, authentication results are difficult for the mail server at the second receiving site to interpret correctly. SPF works on a &q…
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Mail forwarding in a DMARC world

Auto-forwarding mail today is kind of a pain in the butt. If a domain has a p=reject DMARC policy, mail from somebody at that domain likely gets blocked if you try to forward it on to, say, a Gmail account. Even if a domain doesn't have a p=reject DMARC policy, your "…