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TrendAI™ Email Security offers two tiers of protection. Connection-based filtering at the MTA connection level, including IP reputation-based filtering provided by TrendAI™ Email Reputation Services (ERS), is the first tier. The second is content-based filtering at the message level.
Tip
Tip
IP reputation-based filters use only IP address data to filter messages. You can also use sender email address and domain to filter incoming messages. Approved senders bypass IP reputation-based filtering at the MTA connection level.
See IP reputation order of evaluation.
TrendAI™ Email Security makes use of TrendAI™ Email Reputation Services (ERS) Standard Service and Advanced Service. Email Reputation Services use a standard IP reputation database and an advanced, dynamic IP reputation database (a database updated in real time). These databases have distinct entries, allowing TrendAI™ to maintain a very efficient and effective system that can quickly respond to new sources of spam.
Configure the following settings on the Settings tab of the IP Reputation screen:
  • Quick IP List, which is also known as dynamic IP reputation settings, controls how TrendAI™ Email Security uses the dynamic IP reputation database from Email Reputation Services Advanced Service.
  • Standard IP Reputation Settings control how TrendAI™ Email Security uses the standard IP reputation database from Email Reputation Services Standard Service.
The other tabs of the IP Reputation screen are as follows:
  • Approved IP Address
  • Blocked IP Address
  • Approved Country/Region
  • Blocked Country/Region
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