PEACHES Shergood

I know some one that muted a very nasty person and yes they reported it and nothing was done about it. She is now thinking of leaving SL because of all the harassment from the other person. She did mute her but just told me she is now getting notecard from her how do you stop from getting the note cards or any thing else she may send her. In other words how do you make this nasty girl go away and not have to deal with her?