MCSE TestPrep : Exchange Server 5.5 by Glen Martin, Que Corporation, Brian Komar | 9780789716118 | Reviews, Description and More @ BetterWorldBooks.com
Microsoft Exchange Server V5.5 Enterprise Edition Retail CD
Antirelay configuration in Microsoft Exchange Server 5.5
Sams Teach Yourself Microsoft Exchange Server 5.5 in 21 Days by Jason Vanvalkenburgh - Paperback - from wagonwheelbooks (SKU: B60603B300N8944)
A Brief History of Microsoft Exchange Server
Moving on
Novell Doc: GroupWise 7 Gateway for Microsoft Exchange Installation and Administration Guide - Configuring Exchange 5.5
Connecting Outlook Web Access 5.5 To Exchange 2000
Antirelay configuration in Microsoft Exchange Server 5.5
Antirelay configuration in Microsoft Exchange Server 5.5
Mastering Microsoft Exchange Server 5.5 by Barry Gerber
Configuring an Microsoft Exchange Server 5.5 to work with the eG Manager
Rico Troubleshooting Encounter: How to tell if you have Exchange 2003 Enterprise or Standard
Preparing Exchange 5.5 Directory for Migration to Exchange 2003