>Thanks Sergey, I will look into CDOEx. Another possible solution that has been suggested is using Exchange Event Sinks.
>
>As I have never used either method before it is difficult to know which is going to be best, guess I will just have to look at both.
>

Hi Nick,

Take a look at http://www.codeproject.com/csharp/CsManagedEventSinksHooks.asp