Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\RpcProxy]
"ValidPorts"="server:100-5000;
server:6001-6002;
server:6004;
server.domain.local:6001-6002;
server.domain.local:6004;
mail.external.com:6001-6002;
mail.external.com:6004;"