Errors - Can't send/receive email

All of sudden I can't send or receive email on web email or iPhone. This has been ongoing for at least 4 hours that I am aware of.

I am getting the following error messages.

"An error occurred inside the server which prevented it from fulfilling the request" 

and 

"Unable to connect to mail server. Possible reasons: The mail server is (temporarily) down or there are network connection problems. Please try again in a few minutes".

I tried to chat with support but after 2 hours, transferred to 3 different people and the last one in "password support" I got frustrated and quit. Tried to call and the wait time is over 40 minutes, so I scheduled a call back.

I am loosing money with no access to email and am at my whits end.

Please someone help me.