Posted on: 5/28/2011 3:12:18 AM | Views : 691

Hi,
If I create a new user and use their email address as the username. All works fine for the user they can log in and use the site. However, if that user forgets the password and clicks on the password recovery link, they can enter the username (Email Address) but when the hit the send the page comes back with this error
Server Error in '/IR' Application. Mailbox unavailable. The server response was: 5.7.1 Unable to relay 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.Net.Mail.SmtpFailedRecipientException: Mailbox unavailable ...

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