TestFlight does does not send notification email

After TestFlight upgrade for 2000 testers, notification emails are not sended.


I am adding external TestFlight testers from a csv, they are added succesfully, I press SAVE button but the iOS column of TestFlight remains empty.


For the previous testers I added the iOS column displays "Notified" or "Installed 1.0 (<bulid number>)"


What should I do to make TestFlight working again?

I've found that if you upload a CSV file which contains a previously-invited email address, then the new users will be added but none will receive a notification email. You have to remove them and re-add them to send the email.

TestFlight does does not send notification email
 
 
Q