I am in charge of my company's IT functions. We are two divisions, one running Lotus Notes the other running MS Exchange, about 400 users on each. I am at the end of life on the Exchange server (7 year old PC). Notes is running on AIX and is very efficienet. I am looking for recent (last 2 years) information on the pros and cons of Notes and Exchange, so that I can make the best well informed decision.
On another note, we do have a help desk package on Notes that tracks all of our help desk support call and also tracks the all software application modifications. I have read that this is next to impossible to move to Exchange/Outlook.