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Blocklists, MTA-STS and share links
Blocklists, MTA-STS, record lookup, a header reader and share links.
The DNS checker now checks blocklists and MTA-STS, looks up any record, reads email headers and gives you a link to share your report.
Also released on 18 October 2026
- Link Inspector Link Inspector
- DMARC reports DMARC reports
- QR codes QR codes
- My domains My domains
- Blocklist checks Mail tester
- Compare tests and speed drop alerts Speed test