Have you ever had the situation where you had to quickly remove an email from all mailboxes in an organisation? Maybe it was an accidental email by an assistant to the whole company, or worse, inappropriate content sent by a disgruntled employee? I have not yet been put in this position but i wanted to be prepared for the gloomy day. This will help you if you are in the same position.
Well here are some steps that i have tested in an Exchange 2010 SP1 environment.
Note: there is a different method for Exchange 2007/2010 RTM versions that has not been documented here.