deliverlensWhat this check does
Enter the receiving domain. Deliverlens looks for its _mta-sts TXT announcement and retrieves the policy from the standard HTTPS location when advertised.
How to read your result
Read the announcement and supported version, mode and max_age fields together. A partial result identifies the observations completed. MX coverage and actual sender enforcement remain unverified.
What to do next
Compare the published policy with your receiving MX hosts and certificate configuration. Review the protocol requirements before changing enforcement.
Common questions
Which domain should I enter?
Use the domain that receives mail through the MX hosts you want to investigate.
What happens to redirected policies?
The result identifies an incomplete retrieval. Publish the policy at its standard HTTPS location.