Free tool
DMARC Record Generator
Choose your enforcement level and reporting address and we'll build a correct DMARC TXT record — from monitoring (p=none) all the way to full enforcement (p=reject).
Policy:
DMARC record (publish as TXT at _dmarc.yourdomain.com)
v=DMARC1; p=none; adkim=s; aspf=sHow it works
- 1Choose a policy: none (monitor), quarantine or reject.
- 2Add a reporting address to receive DMARC reports.
- 3Copy the record to _dmarc.yourdomain.com as a TXT record.
Questions
Frequently asked
Where should I start?
Begin with p=none and a reporting address to see who's sending as you, fix any gaps, then tighten to p=quarantine and finally p=reject.
What is the rua address?
Where aggregate DMARC reports are sent. Point it at a mailbox you monitor (or a DMARC reporting service) to see authentication results.
Can I check a whole list at once?
This free tool checks one at a time. To verify a full list — email, phone and company together — upload a CSV to BounceBlock and preview your first 100 rows free.
Stop wasting hours on dead leads.
Upload your list and see how clean it really is — free, in under two minutes.
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