What DMARC policy should I use?
Start with p=none and a rua reporting address, then move to quarantine and reject once your reports are clean.
Email Tools
DMARC Checker
Check your DMARC policy and generate a DMARC record.
DMARC record generator
Start with p=none to collect reports, then move to quarantine and reject once only your real services send as your domain.
Add this TXT record at host _dmarc
v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.comHow it works
1
Enter your domain
Type the domain you send email from.
2
Read your policy
See your policy, reporting address, percentage and alignment settings, with warnings.
3
Generate a record
Build a DMARC record and copy it into your DNS at host _dmarc.
The path to a strong DMARC policy
- Start with p=none: you collect reports without affecting delivery.
- Read the reports for a few weeks: make sure every service that sends as you passes SPF or DKIM.
- Move to p=quarantine: failing email goes to spam.
- Finish with p=reject: failing email is blocked, so no one can fake your domain.
Gmail and Yahoo requirements
Anyone sending 5,000 or more emails a day to Gmail or Yahoo addresses must publish a DMARC record (p=none is enough to start) and pass SPF or DKIM for the From domain. A DMARC record helps smaller senders too.
DMARC Checker features
- Checks for a DMARC record, including one inherited from the main domain.
- Explains your policy in plain words: monitor, send to spam, or block.
- Warns about p=none, missing reports and partial pct.
- Generator for a correct DMARC record, with reporting address and alignment options.
DMARC Checker FAQ
Where do I add the DMARC record?
As a TXT record at the host _dmarc in your domain DNS, for example _dmarc.yourcompany.com.
Do I need DMARC if I send only a few emails?
It is strongly recommended. It protects your domain from being faked and helps your emails reach the inbox.
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