POP
MX record, Incoming and Outgoing server - mail10.deltacom.net
Webmail login - http://mail10.deltacom.net

Exchange
MX Records
exchange01.deltacom.net (Priority 10)
exchange02.deltacom.net (Priority 20)
CNAME record
autodiscover - autodiscover.myhostedsolution.com
Webmail Login- https://exchange.deltacom.net

Client Setup
Configure Outlook 2007 with Exchange 2007 Hosting
Configure Entourage 2004 with Exchange 2007 Hosting