Exchange Server 2003 enables any device capable of running the Windows Mobile 2002 or later, such as browser-enabled cell phones or Windows Mobile–based Personal Digital Assistants (PDAs) to access corporate Exchange information. All changes made on the wireless device are reflected in the live mailbox and can be seen from a full desktop mail client such as Outlook 2003 or Outlook Web Access (OWA).
By default, web browsing is being performed by use of the HTTP protocol, i.e. a connection between the client computer (using a web browser) to the web server (using IIS, Apache or any other sort of web server program). HTTP relies on TCP (Transmition Control Protocol) and uses port 80 on the listening server.
Microsoft Exchange Server 2003 now has built-in Open Relay Filter (ORFilter) or DNS Blacklist and Realtime Blackhole List (DNSBL, RBL) capabilities, which releases us from the need to rely on 3rd party software for the spam filtering.
By default, the size limit of each database on a server running Exchange 2000 and Exchange Server 2003 Standard Edition is 16 GB (this limit is also enforced in SBS 2000/2003). Exchange Server 2003 Service Pack 2 (SP2) is supposed to remove this limit and thus allow for further DB size growth.
After installing Exchange Server 2003 Service Pack 2, the default size limit for each Exchange database is 18 GB, but can easily be configured to allow for database size limits of up to 75 GB per database.
Note: Exchange 2000 Standard Edition and SBS 2000 do not have this feature and continue to have the 16 GB limit enforced.
Comprehensive Instructional Video. Perfect for the novice who needs a crash course in installing and setting up Active Directory in Windows 2000 Server/Advanced Server and/or Windows 2003 Server or for the more experienced administrator who wants to expand their knowledge. Both operating systems are covered on each CD.