The Mailbox Statistics Tool from the BackOffice Resource Kit enables you to gather information about mail use patterns from your users. This information can help you to size your hardware more precisely. The MSExchangeIS Mailbox performance object provides a counter named Single Instance Ratio, which you can use to monitor the single instance storage ratio of your server with the Performance tool.

Placeholders in Address Generation Rules

	%d   Display Name
	%g   First Name
	%i   Initials
	%m   Alias
	%s   Last Name

	You can aslo specify how many characters to use:

		%1g.%s@acp-inc.com

	Would result in r.robin@acp-inc.com

Diagnostic logging is available from the exchange server properties form on
the Diagnostics Logging tab. This is where you configure the amount of log
information submitted to the system event application logs. These settings
are held in the system registry of the Exchange server. To enable super
detailed logging, you can manually edit the registry to a 6. This information
is held in the registry under:

	HKLM\system\currentcontrolset\services\[exchangecomponent]\diagnostics\

Within the subkey, REG_DWORD values exist for each of the logging catagories.
These are usually set from the properties of the server, but the value of 6 can
only be set from manually editing the registry. The possible values are:

	0..: None
	1..: Minimum
	3..: Medium
	5..: Maximum
	6..: Super Detailed
Microsoft Exchange 2000 Server
Designed to meet the messaging and collaboration needs of businesses that that only need one server running Exchange 2000. Exchange 2000 Server is limited to a single, 16 Gb database per server. It does not support Chat, Windows Clustering, or distributed configuration.

Microsoft Exchange 2000 Enterprise Server
Designed for organizations that need multiple servers and features such as unlimited message storage and the ability to host multiple stores on a server.

Microsoft Exchange 2000 Conferencing Server
Designed for organizations of all sizes that need to organize and manage data, voice, and video conferencing between people, regardless of location. Can be used in conjunction with other Exchange versions.

All Exchange 2000 directory information is stored in Active Directory. Because
Active Directory defines boundaries, it is not possible hto have a single
Exchange 2000 organization span multiple forests, and it is not possbile for
a forest to contain multiple Exchange 2000 organizations.

Exchange 2000 in AD

The domain partition contains all of the objects in the directory for a
domain, including all recipient objects. Domain objects include recipient
objects such as users, groups, and computers.

The configuration partition stores the configuration of the Exchange 2000
organization. The configuration partition defines the routing topology and
Exchange 2000 configuration including: connectors, protocols, and service
settings of the Exchange 2000 organization.

The Schema partition contains all object types, and their attributes, that
can be created in AD. Exchange 2000 extends the the schema partition with
new attributes (they start with 'ms-Exch'). The schema is extended using
LDAP Data Interchange Format (LDIF) files. You can examine which attributes
are added to AD by viewing the LDIF files on the Exchange 2000 compact disc.
You can view the domain, configuration, and schema partitions by using ADSI
Edit, whcih is included in the Windows 2000 Support Tools.

If you are installing a server running Exchange 2000 into an Exchange Server
5.5 site, the Exchange 2000 ACD must be installed and running before you
install Exchange 2000. During installation, the Exchange 2000 Setup program
confirms whether the Exchange 2000 ADC has been installed by checking the
configuration partition of AD. There are two versions of the ADC, one that
comes with Windows 2000 and another that comes with Exchange 2000. The
Windows 2000 version does not support Exchange 2000 coexistence with Exchange
Server 5.5.

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A routing group is a collection of connected servers running Exchange 2000.
Messages sent b/w any two servers within a routing group are routed directly
from the originating server to the destination server. 24hr. connectivity
is required b/w servers running Exchange in the same routing group.

When Exchange 2000 sends mail to a remote routing group, the message must
travel through a connector. There are several types of connectors that can
connect routing groups, including: a routing group connector, and SMTP
connector, or and X.400 connector. Each server running Exchange 2000
maintains a copy of a routing table named the link state table. The link
state table is a database of all connectors, and their server's status, in
the Exchange 2000 organization.

Minimum Requirements for Exchange 2000:

	o 133 MHz + (300+ recommended)
	o 128 Mb RAM (256+ recommended)
	o 500 Mb free drive space where you will install Exchange
	o 200 Mb free drive space on system drive
	o Set the page file to be twice the size of the installed RAM

/createunattend filename.ini	Creates an unattended file
/unattendfile   filename.ini	Installs by using unattend file settings
/encryptedmode			Creates unattended file encrypted
/showUI				Displays UI while running unattended mode

On any computer you plan to manage Exchange 2000 recipients such as mail
enabling users using Active Directory Users and Computers, you must first
install the Exchange 2000 System Management Tools on that computer.