Hi I'm in the process of building a web page for registering people to
events. I would like it to respond back to them immediately with a
confirmation email. I can get it to work through my development computer
but not anywhere else.
I'm writing it using VB .Net Web application.
Here is the error I receive:
The server rejected one or more recipient addresses. The server response
was: 553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)
I'm using the mail server provided by our hosting site, it does however work
if I email a recipient that resides on the same domain as the one I'm
Is this a problem in my code or an issue for our web hosting site?
Thanks for input!