Knowledgebase: Outbound Mail Flow
Can Proofpoint Essentials be used to forward email for non-registered domains?
Posted by Warren B, Last modified by David Szoke on 05 January 2018 07:10 PM

Proofpoint Essentials only processes email for domains and static IPs registered on our user interface. This is so we can safeguard against the security threat of being used as an open relay.

As such auto-forwarding practices should be relayed using DNS only and cannot be via the Proofpoint Essentials smart host.

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