Trend Micro InterScan Gateway Security Appliance M-Series ...

SMTP Services
Enabling Scanning of SMTP Traffic
The appliance can only scan SMTP traffic if that feature has been enabled. The feature
is enabled by default.You can enable or disable SMTP scanning on the main
SMTP screen.
FIGURE 5-1. SMTP - Enable
To enable scanning of SMTP traffic:
1. On the left-side menu, click SMTP.
2. Select the Enable scanning of SMTP Traffic check box.
3. Click Save.
Selecting an Alternative Service Port
The default listening port for SMTP services is 25. Administrators whose network
security policy requires the use of nonstandard ports for servers may want to change
this default.
5-3