User manual
Firewall 
178
Scan POP email for specific clients only 
Check Virus check POP based email. 
Uncheck Translucent. 
Leave Default POP server blank and check Allow connections to other POP servers. 
Note 
For each of the email clients for which to scan incoming mail, the email client’s POP3 
username setting must be in the form of user@mail.isp.com, rather than simply user – 
user is the POP3 login, and mail.isp.com is the POP3 mail server. 
Additionally, the email client’s incoming/POP3 email server setting must be sent to the 
SG unit’s LAN IP address (e.g. 192.168.0.1). 
Typically it is not necessary to adjust the POP3 protocol Request timeout. 
Once POP3 scanning is functioning properly, you may choose to Reduce syslog output. 
Click Submit. 
SMTP email 
If you have an SMTP mail server on your LAN, the SG can scan emails sent to it by 
external mail servers. 
Check Virus check SMTP based email. 










