Specialist check
Free email blacklist checker
Check the published list scope and sampled mail-server IPs. A clear result applies only to the sources shown.
- Checks
- Queries the published domain lists and a documented sample of resolved mail-server IPv4 addresses.
- Cannot tell
- It does not query every list or every possible sending IP, and a clear result is not a reputation score.
Expected time: about 5 to 20 seconds. Some public services can take longer.
Source: Live Google Public DNS lookups. Queries Spamhaus DBL, SURBL Multi, URIBL Multi, Spamhaus ZEN, SpamCop, and Barracuda where public resolver responses permit. Mail-server IP sampling is shown in the result.
Questions
It checks the domain against domain-oriented blocklists and samples the domain's MX server IPs against IP DNSBLs. It is a current-status launch-risk screen, not a historical reputation report.
Some blocklists limit public DNS resolver traffic or fail transiently. Unknown means the lookup did not return reliable evidence. Treat it differently from clean and confirm before launch.
No. A clean current blacklist check is useful, but inbox placement also depends on authentication, domain age, historical sender reputation, list quality, copy, volume, and mailbox provider behavior.
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