Parse ARC headers to see the chain of trust and authentication results at each hop.
ARC Header Checker helps you debug deliverability issues for emails sent via mailing lists or forwarding services.
Decodes ARC-Seal and Signature blocks
Verifies ARC chain continuity
Highlights authentication pass/fail at each hop
Shows ARC pass/fail state for every hop in the chain
Points to broken links in forwarded authentication flow
Connect multiple emails, Automate emails, manage replies, and track results all in one inbox.