Prospective Client has Exchange 2000 on Windows 2000 Small Business server. The server is servcing maybe 10-15 email addresses.

The problem is as follows. The server has 512MB of ram. However, in the Task Manager, the system says that that it is using 1.5 GB of ram. In the exchange enviroments that I have seen (for this amount of people) it was not using nearly that much ram. Another wierd thing about the server is that it has a lot of small processes running (1mb to 5mb) but only a few that looked like they might be suspicious. Also, the inetinfo.exe was using about 150 mb or ram. (I am assuming this is for webmail since thier website is hosted at Yahoo Small Business) Does this sound like a bit high to you guys?

The server is as follows:

Dell Poweredge (forgot model number)
1.7 Ghz Intel Processor
512 MB ram
2 30 GB hard drives that are mirrored
1 60 GB Hard drive for data

Server is also patched, but has no virus protection, so I am a bit worried about a viral infection. (Will scan with an online virus scanner the next time I go over there)

One last question and I will stop editing this post: What spam control /blacklists do you use for Exchange? They are getting a ton of spam every day.