I contacted sales about this and they directed me to the forums. So here I am. I have Clear OS 6 on a Dell server currently that I use as mail server using Zarafa. I am thinking of migrating to a Clear Box 334 HA with Kopano as a replacement. I like redundancy so I am leaning toward the HA with the single 3000GB drive but I have never run a mail server without a RAID so I am also thinking of just a single unit with a RAID 1. I have a budget and I just renewed the support on my current server so I cant go much higher than the price of the single drive HA or the lone unit with the RAID 1. I am wondering if anyone can give me feedback or recommendations based upon their experiences with the Clear Boxes?