Hi Tibin
I face the same issue which you faced.
In our system (PO 7.4) , alerts were consumed successfully, but we did not get any e-mail.
I tried with AggregateAlerts Property set it true / false. In both cases we did not get mail, but in the Job log it says <X> alerts were consumed successfully.
Could you please tell me how you fixed the issue?
Kind regards,
Jegathees P.