in my test environment I have a GW 7 SP1 server via static NAT behind a BM
3.8 server. I want to allow a few users to check their internet POP3 E-Mails
with the GW-Client. I opened filters for SMTP and I need to add an exception
for POP3 now. But, do I have to add a POP3 exception for any address or only
for the GW server (192.168.A.B)?

Do I also have to add Port 53 for DNS for these workstation or is it only
nessesary for the GW server?

Thanks for your answer and suggestions.