...Blacklist monitor software lets e-mail system administrators know before users told them that there is a problem in outbound e-mail messages because DNS blacklist monitor...
...Every spam filtering software, appliance, or outsourced service uses DNS Blacklist (DNSBL) servers as a first line of defense, but how effective are they? BL-Monitor is a free visual tool to analyze DNSBL response times and effectiveness. It has a timing engine that simultaneously queries and measures multiple DNS blacklist server res...
