550 --- is a non-hosted domain - blocked

[one2create]

Hi

I keep getting the following message "550 --- is a non-hosted domain - blocked.

~ Status: Relaying denied error, giving up!

503 Too many syntax or protocol errors


Can you help?

Thanks

 

[stanbusk]

This is an authentication error. Read the following article: Relaying denied / Delivery not allowed error (SMTP error 550)