Use this page to manage your Trusted ARC Sealers, which are the domains whose ARC results you trust. ARC results from non-trusted domains are ignored when doing DMARC verification.
What is ARC?
ARC is an email authentication protocol that allows intermediate mail servers to digitally sign a message's authentication results, so that when the message continues to its final destination, it can still be verified even though SPF or DKIM verification might fail due to redirecting or mailing list modifications. ARC Verification allows you to specify domains whose ARC results you trust (i.e. your Trusted ARC Sealers) so that by reviewing those results SecurityGateway can determine whether to accept the message. For more information on the ARC protocol, see: RFC 8617: The Authenticated Received Chain (ARC) Protocol.
