PLANET IM-1000 - Manual (Page 83)

Example 3
IM Management
Internal user must pass the IM authentication, then he / she is
allowed to create QQ connection.
Use external POP3 Server
authentication
Step1. Select Accept : Authentication passed and QQ Password valid in IM
Management Æ Rule Æ Default Rule Æ QQ.
Set the QQ default rule
Step2. Enter the POP3 setting in Authentication Æ POP3
POP3 setting
Click Test, to see if IM-1000 can connect to POP3 Server properly.