I start to get crazy with this. I tried everything what I could and it still really doesn't want to send mail when I reply to a comment if I subscribed to it.
Strangely, the mail which ask the user to confirm he wants to subcribe, is sent.
I tried to desactivate all other plugins, thinking it could be related to a conflict, but nothing change when there is just this plugin activated.
Please help me !
My host is 1and1