OK, years later and I am still confused.  I cannot get my DDN site (MovingSQL.com) on GoDaddy to send Email of any kind.  There are so many conflicitng anecdotes here that I cannot sort our how to fix this.

I have the following SMTP setting in the Host Settings page:

SMTP Server and port: Enter the SMTP Server Address. You can also specify an alternate port by adding a colon and the port number (e.g. smtp.googlemail.com:587). Enter the SMTP server name only to use default port number (25)	Test There has been an error trying to send the test email. The error is: Mailbox name not allowed. The server response was: sorry, your mail was administratively denied. (#5.7.1)
SMTP Authentication: Enter the SMTP Server Authentication method ( default = Anonymous )	Anonymous Basic NTLM

When I click the TEST link I get the error message above.  I have tried it with both Anon & Basic authentication.  I have tried it with my Host login name and password in the following SMTP Username and Password field, and with them blank.  All result in the same error above.

 

Please Advise

THE SOLUTION.

The problem with sending e-mail at GoDaddy hosted sites is . . . .

You can't send an e-mail through their SMTP servers that is FROM a Domain outside their DNS Servers.

For example, if your domain is www.fred.com and that domain is controlled by GoDaddy servers then you CAN send an e-mail with this FROM address, for example fred@fred.com.

If, however, your FROM address is fred@gmail.com or any other domain outside GoDaddy's DNS control then the mail will be denied.
Makes sense if you think about it . . . it's how GoDaddy prevents people from using their servers to spoof e-mail.

How do you avoid this - by making sure that every admin/super user account and/or the HOST e-mail account ( in HostSettings) are set to GoDaddy e-mail addresses.

Since GoDaddy gives you 100 e-mail accounts with almost all of their hosting accounts, just set one or more of them to something like webmaster@yourdomain.com, then set them to relay to the address you really want.

That and using the relay-hosting.secureserver.net with annonomous authentication and you're all set.