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Page 22
Verification and Further Configuration
This section contains the following subsections:
• “Routing Mail to Your SonicWALL Email Security Appliance” on page 22
• “Verifying Mail from the Internet Through Your SonicWALL Email Security Appliance”
on page 23
• “Configuring Outbound Mail Filtering” on page 24
Routing Mail to Your SonicWALL Email Security Appliance
In order for your SonicWALL Email Security appliance to start filtering and monitoring
mail, you must re-route mail traffic through your SonicWALL Email Security appliance.
Mail traffic must pass from the Internet to the appliance, and then the appliance sends
the good mail on to your mail server.
You have two choices to route mail traffic to your SonicWALL Email Security appliance
instead of to your mail server:
• Change the MX record in your DNS server to resolve to the IP address of your
SonicWALL Email Security appliance. You may have to work with your ISP to
change this record.
• Create a rule in your firewall or router to route all port 25 (SMTP mail) traffic to your
SonicWALL Email Security appliance. Refer to your firewall or router documentation
for instructions on creating rules to route traffic.
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