How to Set Up DMARC for Constant Contact

Publish a DMARC record to protect your domain when sending marketing email through Constant Contact.

Quick Answer — The Record You Need

Record Type

TXT

Host / Name

_dmarc

Value

v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1

Complete Constant Contact self-authentication before enforcing DMARC.

Step-by-Step Setup

Complete self-authentication

Finish the Constant Contact self-authentication process (SPF + DKIM).

Test email authentication

Send a test campaign and verify SPF and DKIM pass in the email headers.

Create the DMARC record

Add a TXT record at _dmarc.yourdomain.com.

v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1

Monitor reports

Review DMARC reports for 2-4 weeks.

Enforce gradually

Move from p=none to p=quarantine to p=reject.

Common Gotchas

Constant Contact emails will fail DMARC alignment if self-authentication is not complete.
Ensure all email services sending from your domain are authenticated before enforcing DMARC.
Constant Contact sends email from shared IPs. DKIM alignment (not SPF) is the primary DMARC alignment mechanism.

Verify Your Setup

After adding your DNS records, use our free DMARC checker to verify everything is configured correctly. DNS changes typically propagate within minutes, but can take up to 48 hours.

Frequently Asked Questions

Does Constant Contact support DMARC?

Yes. With self-authentication complete, Constant Contact emails pass DKIM alignment for DMARC.

Will DMARC enforcement block Constant Contact emails?

Only if self-authentication is not set up. With SPF and DKIM configured, emails pass DMARC.

Do I need DMARC for Constant Contact?

DMARC is strongly recommended. Google and Yahoo require DMARC for bulk senders.