GoDaddy.com requires that all emails send from websites hosted on their Windows-based servers go through a relay server.
The following settings should be entered in the STMP Server Component Settings in your Site Store Pro web-based admin system if you are hosting on a GoDaddy Shared server. (Located under Emails > Set Active Email (SMTP) Server Component (CDONTS, CDOSYS, ASPEmail, etc))
Select Component:
CDOSYSServer Address: relay-hosting.secureserver.net
STMP Login Name: [- - Leave This Field Blank - - ]
STMP Login Password: [ - - Leave This Field Blank - -]
STMP Port Number:25
STMP Timeout: 10
If you are using a DEDICATED GoDaddy Server, the Server Address should be:k2smtpout.secureserver.net
Note: The settings above are for your Site Store Pro ecommerce (online store) auto-generated messages such as order confirmations, tell-a-friend and password reminder requests. This is NOT for your POP (desktop) email settings if you are hosting your email with GoDaddy.com. For the GoDaddy Personal/Business email server settings to retrieve and send messages from Outlook, Eudora, etc, please visit:
http://help.godaddy.com/article/4715