Loadings
FCrDNS Record Checker
Forward Confirmed Reverse DNS FCrDNS is a DNS technical configuration that shows a relationship exists between an IP address and a hostname. By having FCrDNS, you prove that your IP address is using a sending domain that you own. This relationship provides a form of authentication that some mailbox providers use in their spam filter methodology.
Use this tool to lookup and validate your MTA-STS/TLS-RPT record.
Lookup Tools
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