Originally Posted by iPaintYou
I think someone would probably be able to make a better suggestion if they knew what kind of company we are talking about here, how many employees there are, and what kind of file sharing and security is needed.
Based on what I know, Google Apps for Business
sounds like a good fit. They offer a free trial so maybe you can just toy around with it and see if it fits your needs.
I don't think that information is really relevant other than determining the amount of disk space and bandwidth, which is usually variable in different pricing tiers for paid services.
Software would A) allow users to check mail and respond to mail (and all the other jazz, signatures, forwarding, etc. etc.), and B) files could be shared (documents primarily).
And Google Apps for Businesses looks very decent, but still, too complicated for 70-year-olds. I need bare bones simple, a mail client with a file-sharing area. No frills to confuse fogies.