First off thanks to the admins for creating this forum. Open Source projects have come a long way and in many cases are ready for prime-time.
MailArchiva seems to be the most popular OS option for Exchange archival. Anyone use it or another product?
While its not open source, some software I use from a company called Sherpa Utilities and they do Exchange archiving. I used their Mail Attender product and was thoroughly impressed with it - it did exactly what I wanted.
We will take a look at GFI Mail Archiving for Exchange - hopefully review it soon.
MailArchiva looks reasonable though so may also take a look see at its Enterprise product.
I did have a short list somewhere of possible contenders.