BLOCK internet browsing(Chrome, Mozilla, IE) while allowing outlook and antivirus to use internet

Hi ,

Im using RB1100AHx2 and i want to block staff to access internet (total blocking such as they can no longer use browser - https and http browsing) while allowing their workstation’s Microsoft’s outlook to use the internet in order for them to send/receive email and also allowing antivirus to update definition online. Is that possible?

Thanks!

Make an Filter rule that blocks everything expect the IP for you Outlook server and Antivirus server.
If you just open port for email to any site, it can be used as a VPN port.

Thanks for reply.

Im sorry but how could i do that? Can you send more detailed information?