Email server monitoring tool

Fast blacklist monitor

  • 116 blacklists checked
  • 30 minutes, 1, 2, 3 hours monitoring intervals
  • Email alerts on listings and delistings
  • Daily or weekly reports
  • Reputation Score monitoring
  • SNDS blocklist and trap hits monitoring
  • RESTful API
  • Fast and simple online blacklist check API
Spam blacklist (RBL, DNSBL) is a list of IP addresses and domain names that supposedly are source of email spam. Most mail servers and spam filtering systems use spam block lists. If your domain name or mail server IP address is listed in the spam list, email you send may be rejected or marked as spam.

Test if your mail server IP or domain name blacklisted

IP or domain name   
Lookup  IP blacklists
Domain name blacklists

SMTP server monitor

  • TCP port connectivity monitoring
  • Domain name resolution monitoring
  • Reverse DNS monitoring
  • Instant email alerts when monitored state changed
  • Monitoring from multiple locations
Free one month trial