Earthlink / Mindspring MX record support help If you have an account rep they will be able to assist you with making this switch. If not the normal hosting support line (888) 932-1997 should be able to assist you. The Earthlink Live Chat is also very fast and helpful at:
http://support.earthlink.net/ Click on the Live Chat Link on the left. You will need your FTP password or the last 4 digits of the credit card that is used for the account.