Try this:
http://technet.microsoft.com/en-us/library/ee832792.aspx http://technet.microsoft.com/en-us/library/ee832796.aspx ----- Original Message ----- From: "John P. Ellis" <johnel...@wirral.gov.uk> To: "MS-Exchange Admin Issues" <exchangelist@lyris.sunbelt-software.com> Sent: Wednesday, January 13, 2010 5:01:30 AM GMT -05:00 US/Canada Eastern Subject: Exchange 2010 sizing guide Is there such thing as an Exchange 2010 sizing guide? Currently we are using Exchange 2003 and im trying to size the servers Currently we have about 4300 users and this will probably grow to 5500. Thanks John ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.clearswift.com **********************************************************************