The 5 possible Exchange 2007 server roles are:

1. Unified Messaging
2. Edge Transport
3. Client Access
4. Mailbox
5. Hub Transport

For an indepth look at these roles, click one of the Exchange 2007 roles above.

The Exchange 2007 unified messaging role:

1. Merges Voice over IP with exchange 2007
2. Allows users to check voice mail through OWA (Outlook Web Access

Exchange 2007 client access server is:

1. Provides OWA (Outlook Web Access)
2. Outlook mobile access

The Exchange 2007 edge transport role contains:

1. Anti spam protection
2. Anti virus protection
3. When used email hits the edge transport before going to the hub transport server
4. Can not exist on a server with any other server role.  (IE: a Hub Transport and Edge Transport server can not exist on the same physical machine)
5. Installed on the edge of your network
6. uses ADAM (Active Directory Application Mode)
7. One way sync of Active Directory information
8. Purpose of an Edge Transport server is for protection
9. Allows you to setup SMTP, MIME, SCL (Spam Content Level) rating ranging from 0 to 9.
10. Email can be quarantined on the edge transport server if needed.

The Exchange 2007 Hub Transport role is:

1. Responsible for internal mail flow
2. Installed in Active Directory
3. Varies if you are using an edge transport server as well.

The Exchange 2007 mailbox role provides and uses the following:

1. Holds Exchange databases
2. Hold mailboxes and public folders
3. Part of an Active Directory Domain
4. Requires plenty of space in Active Directory
5. Allows a maximum of 50 mail storage groups (in Exchange 2007 enterprise)
6. Allows maximum of 50 mail databases across all storage groups (in Exchange 2007 enterprise)

This Power Shell cmdlet will show all of the mailbox sizes and their quotas.  It will also let you know if the mailbox has exceeded it’s quota and disabled as a result.  It outputs the username, the total item size (sorted highest to lowest), and their storage limit status.

Get-MailboxStatistics -Server SERVERNAME | Sort-Object -Property TotalItemSize -Descending | Format-Table DisplayName,TotalItemSize, StorageLimitStatus > FILENAME.txt
Get-mailbox -Identity UID

Replace SERVERNAME and FILENAME with your server name and the name and path of a text file that you want these statistics output to.

If you migrated from Exchange 2003 to Exchange 2007 and still have some residual mailboxes left behind on the old exchange 2003 server, this Power Shell cmdlet will be very useful to you.  It will list all users the old exchange 2003 server and their respective mailstores.

Get-Mailbox -OrganizationalUnit OUNAME -Server OLDSERVER | Format-List Alias, ServerLegacyDN

Where OUNAME is an Organization Unit in your Active Directory domain that you want to search.  For example, lets use the users OU.

The OLDSERVER is the name of your old Exchange 2003 server.  For example, let use EX2K3.

So… your command will be like this:

Get-Mailbox -OrganizationalUnit Users -Server EX2K3 | Format-List Alias, ServerLegacyDN

If you need to modify or update your Microsoft Exchange 2007 product key, use the following cmdlet:

set-exchangeserver -Identity ‘SERVERNAME’ -ProductKey ‘XXXXX-XXXXX-XXXXX-XXXXX-XXXXX’

This is a useful command if you upgrade from Exchange 2007 Standard to Exchange 2007 Enterprise.

To show an easy to read listing of all of the interfaces on a cisco router or switch, issue the follow command:

show ip interface brief

For example:

Switch1#show ip interface brief
Interface              IP-Address      OK? Method Status                Protocol
FastEthernet0/1        unassigned      YES manual down                  down

FastEthernet0/2        unassigned      YES manual down                  down

FastEthernet0/3        unassigned      YES manual down                  down

FastEthernet0/4        unassigned      YES manual down                  down

FastEthernet0/5        unassigned      YES manual down                  down

FastEthernet0/6        unassigned      YES manual down                  down

FastEthernet0/7        unassigned      YES manual down                  down

FastEthernet0/8        unassigned      YES manual up                    up

FastEthernet0/9        unassigned      YES manual down                  down

FastEthernet0/10       unassigned      YES manual down                  down