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Constant Contact

Email marketing and online survey tools.

SPF Include

include:spf.constantcontact.com

Add this include to your SPF record to authorize Constant Contact to send emails on behalf of your domain.

Add to SPF record

Already have an SPF record? A domain can only have one: add this include to the existing record instead of creating a second one. How to merge multiple SPF records

Setup Steps

  1. 1Go to Constant Contact > Account Settings > Domain Authentication
  2. 2Click "Authenticate Domain"
  3. 3Enter your domain
  4. 4Constant Contact generates CNAME records for you: _em_ (which covers SPF), and _s1._domainkey_ and _s2._domainkey_ for DKIM
  5. 5Add those CNAME records to your DNS, along with the _dmarc record it generates
  6. 6Allow up to 48 hours before activating self-authentication, and do not send until it finishes
  7. 7Return to Constant Contact and click "Verify"
Official Constant Contact Documentation

Monitor your email authentication

Verify your Constant Contact configuration is correct and get alerts when issues arise.

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