Sending e-mail problem

Hello,

I am trying to send an e-mail with my C# ASP.NET application. I followed the code Q10019 - HOWTO: Send Email in ASP.NET in the knowledge base.
I get this error : I get this error '553 sorry, that domain isn?t in my list of allowed rcpthosts'. What happened and what do I do?

Once again, the knowledge base says :
"We use a "POP before SMTP" rule. That is, you have to check your email before you can send email. You will get this error if you tried to send email without first checking your email."

I should use POP before SMTP... I don't understand how to use POP when i have to send an e-mail confirmation. The email check is a kind of validating process to see if the destination e-mail is OK or this is a check if I received mails?

What is the proper code to send a simple e-mail on discountasp.net without getting the 553 error?

Thank you in advance,

Simon Rinfret

 

Thank you very much, it works! I thought i have to change the localhost string by the smtp.mydomain.com.. thanks!