Authenticate Zendesk for your domain

When Zendesk sends mail as your domain, receivers check that it is DKIM-signed or SPF-authorized for that domain. Without it, a strict DMARC policy will send that mail to spam or bounce it.

1. Set up Zendesk

In Zendesk Admin Center, open Channels → Email and follow the instructions to add the zendesk1/zendesk2 _domainkey CNAME records for your support address domain.

2. Publish a DMARC record (if you don't have one)

Create a TXT record named _dmarc with a monitoring-only policy:

v=DMARC1; p=none; rua=mailto:<your report address>

Reports show whether Zendesk and your other services pass. Tighten the policy only when they all do.

3. Check it

Need help adding the records? See how at Cloudflare, GoDaddy, Namecheap, Amazon Route 53, Squarespace Domains, Porkbun. Add them where your domain's nameservers point.

DNS changes usually appear within an hour. Then check your domain.