DMARC Checker
See within seconds whether your domain has a valid DMARC record and how strict its policy is.
Analysis messages from the checker are currently in Dutch.
How does it work?
DMARC decides what receivers do with mail that claims to be your domain but passes neither SPF nor DKIM. We read the record at _dmarc.yourdomain.com and show policy, percentage and report addresses with warnings where it is weaker than needed.
Frequently asked questions
Which policy should I use?
Start with p=none to collect reports, then move to quarantine and finally reject once legitimate senders align.
What do rua and ruf do?
rua is the address for aggregate reports, ruf for individual failure reports. With rua you see who sends on your behalf.
Why does the tool say there is no record?
The record must be a TXT at _dmarc.yourdomain.com starting with v=DMARC1. DNS changes can take a while.
Need help with your email security?
We set up DMARC, SPF, DKIM and MTA-STS for you and keep an eye on it, as part of Security and Monitoring.