When it's busy in the observed area, I get an alert and mail every view minutes. Sometimes there are alredy multiple (2 or 3) gifs in one mail, if there were alerts short in a row. So there is already a function for colletive mails. It would be great if I can configure a time periode (e. g. 30 minutes), so I get only one mail every (in this case) 30 minutes at most. But that mail should contain all the gifs from all alerts since the last mail. So I won't miss anything.