System.Net.Mail

I need to send the email with an email address that is not in my domain, but it will not do that. Can this be done

Yes. But your server may not accept it. Tell us how you know "it will not do that."

Jeff

Hi,

The machine that is running your application and sending emails must be added to the list of the allowed hosts on the smtp server you are trying to use as a relay - of course if that smtp server has restricted access.