Problem Description: "Failed to send SMTP message. Error was: 501 5.1.7 Invalid Address. WSA No Support” is returned by AlertQSX after pressing the “Test Message” button. All mandatory fields are properly configured as far as end user has reported.
Solution: It was determined that the end user was using an “invalid sender email address” that did not exist on the email server, in this case Microsoft Exchange, thus AlertQSX was unable to authenticate against the internal Microsoft Exchange server. A valid user name was entered into the “From:” field and it successfully resolved the problem.