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Email Source: Constant Contact, Inc.


Known to forward email? no

DMARC Capabilities

Capable of generating DMARC compliant email for others? yes

Capable of signing email with DKIM for others? yes

Capable of sending SPF compliant email for others? no

Notes on Capabilities

DMARC: DMARC compliance through DKIM signing.

DKIM: Constant Contact and self-published authentication describes how to setup DKIM using your own domain:

SPF: no notes


When deploying DMARC, domain owners often find new sources of email.

Domain owners then wonder if the source is capable of sending DMARC compliant email.

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