Catching mails

When developing a solution, sometimes it is nice to be able to catch mails and store them somewhere in stead of potentially sending them to real customers.

In web.config or app.config, there is a setting that can accomplish that for you:

<system.net>
  <mailSettings>
    <smtp deliveryMethod="SpecifiedPickupDirectory">
      <specifiedPickupDirectory pickupDirectoryLocation="c:\Temp\Mail"/>
    </smtp>
  </mailSettings>
</system.net>

 If you install an eml-viewer or maybe just a regular mail client, you can open and read the mails from the folder you specified.

Source:
http://stackoverflow.com/questions/567765/how-can-i-save-an-email-instead-of-sending-when-using-smtpclient