What's the purpose of storing it in SharePoint? – iOnline247Dec 6 '10 at 15:38
To view it in multiple locations, and to reduce the exchange mailbox size. – BravaxDec 6 '10 at 15:40
Correctly designed, a SP farm can be a very good alternative to internal email. For example, I used to have an extranet running on WSS 3 for customers. Each customers had a dedicated site collection, and each project made for this customer has its subweb. Discussion lists/doucment library and others lists, make us nearly stop using email. All communications, all documents, all bug report, ... was done from the WSS platform. Only "reticent" customers or non customer still was using emails, but the numbers was quite low. This is not an answer to your question, but more another way to think := – Steve BSep 2 '11 at 7:11
Have you considered writing a PowerShell script to extract the data from Exchange and put it into SharePoint? – SPDoctor♦Nov 5 '11 at 19:22