General DNS Setup Guide

No matter which registrar you use (GoDaddy, Cloudflare, Namecheap, AWS Route53), the process for adding DMARC records is similar.

Record Details

You will need to add a TXT Record with the following values:

Type Host / Name Value
TXT _dmarc v=DMARC1; p=none; rua=...
TXT @ (Root) v=spf1 include:spf.yourtoken.hosted.sentradmarc.com ~all
CNAME s1._domainkey dkim1.yourtoken.hosted.sentradmarc.com

Common Gotchas

  • Host Name: Some providers (like GoDaddy) only require you to enter _dmarc. Others (like Route53) may require the full _dmarc.yourdomain.com. Check your provider's help docs if it fails.
  • Propagation: DNS changes can take anywhere from 5 minutes to 48 hours to propagate globally.
  • Conflicts: Ensure you do not have multiple TXT records for _dmarc. You can only have one DMARC policy.