How would you stop, turn off, disable, Receive Email Notification of New Private Mes
 

How would you stop, turn off, disable, Receive Email Notification of New Private Messages? I have members that when they get the e-mail they reply to the e-mail, and they do not read the first line which says "do not reply to this e-mail" and it also says for them to log in to read, and reply. I just want to turn it off forum wide no matter if they have if checked in there usercp.