Hi All I have small organization, approximately 100 mailboxes. I will implement Exchange 2010, but a have only one server. Can i implement all Exchange roles excluding Edge Transport on the same server? I read http://technet.microsoft.com/en-us/library/dd346700.aspx hardware requirements but i saw what i can combine only CAS\MBX\HUB per one server.

Hi, Yes its supported and you can install all 4 roles on same server which are as below. 01. Mailbox Role. 02. Client Access Role. 03. Hub Transport Role. 04. Unified Messaging Role. So go ahead and lets start installation. Here is the step by step guide for installation as well. Installing Exchange Server 2010 Step by Step Regards. Shafaquat Ali.M.C.I.T.P Exchange 2007/2010, M.C.I.T.P Windows Server 2008, M.C.T.S OCS Server 2007 R2, URL: http://blog.WhatDoUC.net Phone: +923008210320

All roles are supported to be installed on the same server except the Edge role. You will see in the pre-req link below that it mentions the pre-reqs when installing MB, CAS, HUB, and UM role on same server. With 100 users, this shouldn't be an issue (although I do not know the spec of your server). Also, one thing to note, the UM role is not supported on a vritual server. You didn't mention whether your server was physical or virtual, so just mentioning it. http://technet.microsoft.com/en-us/library/bb691354.aspxTim Harrington - Catapult Systems - http://HowDoUC.blogspot.com