----- "Bo Lynch" <blynch at ameliaschools.com> wrote: > I would have thought that this was a small install:) We probably have > at > the most around 200-250. I was just guessing for growth. We too opt > open > source. Is zimbra a resource hog? Meaning do you think it would work > with > maybe a xeon quadcore with 4gb RAM? RAM is by far the largest resource you can't possibly have enough of. For that number of users, I'd go with more if you can. A quad core Xeon *should* work. One thing to remember is that your CPU usage will vary depending not on how many total clients you'll have but how many *simultaenous* clients you'll have accessing the system at a given time. Another considering is the speed of your hard drives. 10000 RPM SATA/SAS or SCSI would be needed and you'll probably want RAID as well. Check the Zimbra site (in the wiki and forums I believe) for more information on dimensioning Zimbra systems with many users. Most of the recommendations there are from real world scenarios. Tim Nelson Systems/Network Support Rockbochs Inc. (218)727-4332 x105