Disable the access to the UserMailForm by default
Disable the access to the UserMailForm by default

Closes #3034

WoltLab/WCF,SoftCreatR/WCF,SoftCreatR/WCF,WoltLab/WCF,Cyperghost/WCF,SoftCreatR/WCF,Cyperghost/WCF,MenesesEvandro/WCF,Cyperghost/WCF,WoltLab/WCF,MenesesEvandro/WCF,SoftCreatR/WCF,Cyperghost/WCF,Cyperghost/WCF,WoltLab/WCF