Accessing Mail Fails

Ok we are nearly finish migrating our sites, so I am going back in now and check mail and users. Jamie writes:

"For virtualmin sites, all users can access webmail on www.whatever.com:20000."

But if I put "http://www.himalaylanacademy.com:20000" into my browser (firefox).. I get a strange msg.

Connection Interrupted
The connection to the server was reset while the page was loading.
The network link was interrupted while negotiating a connection. Please try again.

??

Status: 
Closed (fixed)