Thanks for the quick reply

Basically I am using raw MAI files to train a bayesian dictionary.
The problem is that the attachments take up HUGE amounts of file space for no reason (11GB at the moment).

Once the dictionary is trained, the files get deleted, so there is no reason to retain the message after processing, but more importantly, i need to remove the attachments from the files.

I see your suggestion about keeping the data I need, but am new to .NET so I am unsure where to start or what terms to Google.

Thanks again...