Exchange 2013 quota notification message not sent during schedule

Hi,

I have the following problem on Exchange 2013 cu2: users that exceed the mailbox quota receive the notification mail at times that seem to be completely random. In exchange 2010 the system should check the quotas and send the email during the QuotaNotificationSchedule that is set on each DB  by default every night from 1 .00 to 1 .15 . Is It different on Exchange 2013? Because I saw on technet that some options like quotanotificationschedule is deprecated on the cmdlet set-mailboxdatabase.
I also verified that the database is set MaintenanceSchedule from 1:00 to 5:00.
Actually from tests that I carried out the emails arrived outside of these ranges, I also tried to modify the schedule by adding a new range, but I have not received any notification in that range of time.

Thanks,

Anthony