DMARC Record Generator
Pick your domain and policy — the DMARC value for your DNS is ready instantly.
Your text and files never leave your browser — nothing is sent to a server.
- Host
- Type
TXT - Value
DNS zone file format
How to use
- Enter the domain you send mail from (for example, example.com). The host name _dmarc.example.com is created for you.
- If you are just starting, keep the policy at none and add a rua address for reports. Watch them for a few weeks to make sure SPF and DKIM pass.
- Once everything looks good, move to quarantine and finally reject. You can use pct to apply the policy to only part of your mail first.
- In your DNS dashboard, add a TXT record with “Host” as the name and “Value” as the content, then save.
FAQ
What do I need before adding DMARC?
SPF and DKIM should already be set up. DMARC is a rule that acts on those two checks, so without them even legitimate mail can fail.
Do I enter the full _dmarc.example.com as the host?
It depends on your DNS provider. Many append the domain automatically, so you only type _dmarc. After saving, make sure it did not become _dmarc.example.com.example.com.
How long does it take to work?
DNS changes usually show up within minutes to a few hours, and up to about a day depending on the TTL. Aggregate reports typically start arriving the next day.
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