An issue came up at my client recently, where our webmaster email account was being flooded with non deliverable email notices. Messages were bouncing back because our SharePoint farm was sending alerts to users and email address that no longer existed. This was on a WSS 3.0 farm, and we don’t have any third party tools (like Axceler’s ControlPoint) to help manage scenarios like this. So, I decided to tackle the problem with PowerShell. Of course the first step in writing a PowerShell script is to ......