I have an issue with forum email.
All users receive perfectly all mails. But forum the forum activity, some users don't receive it.
I check everything : notifications parameters, subscription to the forum....
The particular user who don't receive emails has a gmail adress. You could say to me that it's gmail's fault but no, because this user receive assigment/messages notifications perfectly. You could say to me that it's his "Notificaitons parameters"'s fault, but I check and they are activated. You could say to me that it's his forum subscription, but I checked too and he is subscribed to the forum...
First I tought it could be because he was the teacher, but we tried as a student and it didn't work.
Have you some ideas?