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Email security
DMARC record lookup
Read enforcement and reporting policy.
Your results will appear here.
Enter a value or load an example to begin.Where your data goes
The hostname or IP address you enter is sent to Google Public DNS over HTTPS. sudor.io does not store the query. DNS resolvers may contact authoritative nameservers to resolve it.
Before you use the result
A published policy does not prove that email authentication is correctly deployed.