No emailadres

I tried to sent each student their scores through "send each cell's result to each student".
When I tap the column there is no email in the pop-up. So i can't send the result,
Any idea how that comes?

Hello again Armin,
You can either tap&hold on a column's header / Tools / and e-mail
or if you'd like to send several columns at once, tap on Tools icon (top bar) , select your columns and tap on mail