Spam and viruses

From: Noah Vale, Exchange Server Manager
To: You
Re: You’ve got mail! (and maybe a little virus too)
Independent of Candace’s questions (see A3), I have been complaining to Borden about spam
and viruses, and other DoS2 attacks into our systems. I am spending way too much of my time
troubleshooting problems that don’t deal directly with advancing our business operations. I’ve
got him thinking: perhaps we do need to move our email environments to a Web2.0 SaaS
solution from our current Exchange Server solution.
I want to make the case but need to know: what questions do we need to ask? How do we go
about making the evaluation between hosting an Exchange server ourselves and offloading
email to a hosted solution? Is there a third option we should consider along with this?