Security & Trust
Blacklist Checker
Know the moment a domain or its mail servers land on a spam blacklist -- before it hurts your sender reputation.
What it checks
- ✓Checks every resolved IP against 9 major IP blacklists, including Spamhaus ZEN, SpamCop, and Barracuda Central
- ✓Checks the domain itself against 3 domain-based blacklists: Spamhaus DBL, SURBL, and URIBL
- ✓Shows the exact listing reason text pulled from each blacklist that flags you
- ✓Rolls every result into one summary: total checks, clean, listed, and errored