Posts tagged: forwarding
ARC Email Authentication: Forwarded Mail in 2026
ARC email authentication carries SPF, DKIM, and DMARC verdicts across forwarding hops. Real headers, cv=fail debugging, trusted-sealer fixes, IETF status.
DMARC Fails on Forwarded Emails: Why ARC Is the Fix
Forwarded emails fail DMARC because SPF breaks in transit. See why, when DKIM survives, and how ARC seals the chain across every forwarding hop.