Hi, I have a newsletter application that works but it seems that it can only send to certain email addresses.
Email addresses are automatically selected from ms db and are inserted by the customer.
When I try to send to an e-mail address for example name@hotmail.com, it returns this error.
The server rejected one or more recipient addresses. The server response was: 553 sorry, that domain isn't allowed to be relayed thru this MTA (#5.7.1)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Runtime.InteropServices.COMException: The server rejected one or more recipient addresses. The server response was: 553 sorry, that domain is ...
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