Constant Contact
Email marketing and online survey tools.
SPF Include
Add this include to your SPF record to authorize Constant Contact to send emails on behalf of your domain.
Add to SPF recordAlready 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
- 1Go to Constant Contact > Account Settings > Domain Authentication
- 2Click "Authenticate Domain"
- 3Enter your domain
- 4Constant Contact generates CNAME records for you: _em_ (which covers SPF), and _s1._domainkey_ and _s2._domainkey_ for DKIM
- 5Add those CNAME records to your DNS, along with the _dmarc record it generates
- 6Allow up to 48 hours before activating self-authentication, and do not send until it finishes
- 7Return to Constant Contact and click "Verify"
Frequently Asked Questions
What SPF record do I need for Constant Contact?
Add include:spf.constantcontact.com to your SPF record to authorize Constant Contact to send emails on your behalf.
Does Constant Contact support DKIM?
Yes. Constant Contact uses CNAME records for DKIM. After authenticating your domain, Constant Contact provides CNAME records for _s1._domainkey and _s2._domainkey that you add to your DNS.
How long does Constant Contact domain authentication take?
After adding the DNS records, allow up to 48 hours before activating self-authentication. DNS propagation times vary by provider.
Do I need DMARC for Constant Contact?
DMARC is not required to send through Constant Contact, but it is strongly recommended. DMARC protects your domain from spoofing and gives you visibility into who is sending email on your behalf.
Monitor your email authentication
Verify your Constant Contact configuration is correct and get alerts when issues arise.
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