I set up the alerts on a test system and have database mail enabled with a valid profile (that I can send a test email from). I added the notification to the alerts to use a operator that used this DBMail profile. I generate a test deadlock but the alert never fires and yes the deadlock does happen:

Msg 1205, Level 13, State 45, Line 4

Transaction (Process ID 57) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.

What am I missing here? Alert set up, dbmail set up, operator set up. Alert setup for deadlock as recommended to use the operator that uses dbmail.