Do you want to stop people on you internal network to fetch "unauthorized" POP3-Accounts?
If so you could achieve this by denying access to the respective POP3-servers via a packetfilter rule.
Do you want to stop people on you internal network to fetch "unauthorized" POP3-Accounts?
If so you could achieve this by denying access to the respective POP3-servers via a packetfilter rule.