Notes/Domino 4 and 5 Forum

I have a general question regarding Domino and the Lotus Notes Client. Currently we have a port opened on our firewall so our remote users can connect to the Domino server and use the Lotus Notes Client to get there e-mail and access to there databases. They are setup just as an internal user would be however we had to open a port on our firewall for the security reasons and Notes using port 1352. IS it possible to use SSL for our remote users to use so we can bypass the firewall and they just use regular HTTPS traffic through the Lotus Notes client 5.0.11 to get there e-mail and databases with replicating and all that good stuff??? If it is possible please let me know. We are running Domino 5.0.11 on the server.