Powershell script which makes sql query, compares result to previous result and in case of changes send result via mail. Link to ps1 file here. I have Microsoft SQL Express and a task to check one specific column and send message to security officer if column is changed. Because support are outsourced Database and server must be untouched as much as possible. SQL Express version does not have embedded mail sending and lot of other tools. If you want to do it via triggers, there are lot of .net functions that must be enabled and I am not sure is it really possible via sql express version.