I setup a test job to test out my failure notifications and now I'm getting the following error, stating it did not notify my operator via email. The strange thing is I ran the same exact setup script on several other instances and it worked just fine, but is failing on this instance. I checked the properties for SQL Server Agent and the operator itself. I also sent myself a test email from the Management branch's Database Mail and it worked successfully.
Failed to notify 'DBA Team' via email.