Domain Scanner
One scan of a domain's email health: mail servers, SPF, DKIM, DMARC, DNS and extra security records, with a score and a list of fixes.
What the scan checks
Mail servers (MX) and the provider behind them, the SPF record and its DNS lookup count, DKIM on the most common selectors, the DMARC policy and reporting, the nameservers, and optional records such as CAA, MTA-STS and TLS-RPT. Each area adds to a score out of 100.
What it cannot do
It reads public DNS only. It does not test blacklists, domain age or real inbox placement, and DKIM is only checked on common selectors. If your selector is custom, use the DKIM Record Checker.