A common reaction to companies faced with an e-discovery request is to hold, or preserve, everything. While this is a better reaction than doing nothing, it usually stems from fear or ignorance. The fear is that if the company doesn’t hold everything, it will be sanctioned if it can’t produce information responsive to the plaintiff’s requests. The ignorance stems from its knowledge (or lack thereof) of the electronic information it has (or doesn’t have).
Kahn Consulting explains why you don’t have to hold everything in this article.