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Email Forwarder: The Apache Software Foundation


Known to originate email on behalf of other domains? no

Forwarding Characteristics

Preserves DKIM signatures? yes

Uses own domain in envelope (SPF)? yes

Notes on Forwarding

Huge number of mailing lists. Will preserve DKIM if present. Will pass SPF with related * domain.


When deploying DMARC, domain owners often find that email can flow through forwarders before arriving at a final destination.

Domain owners then wonder if the forwarder is capable of interoperating with DMARC.

This directory contains information on the capabilities of various email forwarders.