SQL Server 2008: A message with
@msgnum = 75000 and @severity = 16 was added to the SQL instance. An alert was added that is raised when error number 75000 is raised. The alert is enabled and an operator, who is also enabled, is set to be notified via email. The alert history shows that the alert is triggered, but the operator is not notified. The operator history shows "Most recent notification attempts: (Never e-mailed)".
The operator has a correct e-mail address. DBMail is setup correctly since I can sp_send_dbmail from and to that e-mail address.
Where do I begin to troubleshoot?