Email server IP address monitoring

  • Reverse DNS resolution/uptime monitoring - provides alerts when rdns unresolved
  • Reverse DNS monitoring - monitor PTR record against accidentally or malicious changes
  • Host name or domain name resolution monitoring
  • TCP port (443, 80, 25, 465, 587) uptime monitoring
  • Email alerts on monitored state change
  • Monitoring simultaneously from multiple locations

List of locations TCP port monitored from:

American Region

  • Dallas, Texas, USA - 45.43.4.121
  • Los Angeles, California, USA - 204.44.71.102
  • New York City, New York, USA - 107.191.96.156

European Region

  • Frankfurt, Germany - 185.177.21.135
  • Amsterdam, Netherlands - 185.45.112.211
  • London, UK - 185.122.58.37

Asia-Pacific Region

  • Melbourne, Australia - 103.217.254.146
  • Singapore - 45.32.113.199
  • Los Angeles, California, USA - 204.44.71.102

Worldwide

  • Los Angeles, California, USA - 204.44.71.102
  • New York City, New York, USA - 107.191.96.156
  • Frankfurt, Germany - 185.177.21.135
  • Singapore - 45.32.113.199

You can chose region to monitor from and number of failures before sending an alert.