OK, lets start with the RDP first.
Check your firewall and see if Remote Desktop is set to allow incoming and outgoing traffic. If you can not find it make an entry for port 3389. Then check RDP function.
There also may be a security limitation now on your version of RDP. On the server remote tab of computer properties. If you want to allow connection from any machine then you should select "Allow connections from running any version of remote desktop" option.
Atleast one side may be considered legacy connector 6.0 or less.
When that checks out then you can investigate the ports that are needed for others such as WebMail.