If a knock trigered an email, you would have to put some kind of limit, like it wont send another email for 5 minutes, or something like that.
Or else...
"DING.....You have 958 new messages"
If a knock trigered an email, you would have to put some kind of limit, like it wont send another email for 5 minutes, or something like that.
Or else...
"DING.....You have 958 new messages"