After you install Transport servers running Exchange Server
2010, you need to finalize the configuration by creating and
configuring a postmaster
mailbox and performing any other necessary tasks. For Exchange
organizations with only Hub Transport servers, you should enable
anti-spam features. For Exchange organizations with Edge Transport
servers, you need to subscribe the Edge Transport servers to your
Exchange organization. For either type of Exchange organization, you
might also want to configure journal and transport rules on your Hub
Transport servers.
1. Configuring the Postmaster Address and Mailbox
Every organization that sends and receives mail should have a postmaster
address. This is the e-mail address listed on nondelivery reports and
other delivery status notification reports created by Exchange Server.
The postmaster address is not set by default. You must manually set the postmaster address.
To view your Exchange organization's postmaster address, enter the following command at the Exchange Management Shell prompt:
Get-TransportConfig | Format-List Name,ExternalPostMasterAddress
This command lists the postmaster address for the organization, as shown in this sample output:
Name: Transport Settings
ExternalPostmasterAddress : postmaster@cpandl.com
If you don't set the postmaster address, the address typically is
set to $null, except when you have an Edge Transport server that hasn't
been through the Edge Sync process. To change the postmaster address,
you can use the –ExternalPostMasterAddress parameter of the
Set-TransportServer cmdlet, as shown in this example:
Set-TransportConfig -ExternalPostMasterAddress "nondelivery@cpandl.com"
If you want the postmaster address to be able to receive mail, you
must either create a mailbox and associate it with the postmaster
address or assign the postmaster address as a secondary e-mail address
for an existing mailbox.
You also can view or change the organization's postmaster address by completing the following steps:
-
In the Exchange Management Console, expand the Organization Configuration node, and then select the Hub Transport node.
-
In the main pane, select the Global Settings node and then
double-click Transport Settings. This displays the Transport Settings
Properties dialog box.
-
On the General tab, the current postmaster e-mail address is listed. If you want to change the postmaster address, enter the address you want to use, and then click OK.
2. Configuring Transport Limits
Exchange Server 2010 automatically places receive size, send size,
and number of recipient limits on messages being routed through an
Exchange organization. By default, the maximum message size that can be
received by or sent by recipients in the organization is 10,240 KB and
messages can have no more than 5,000 recipients. You configure maximum
message size limits on individual Receive and Send connectors as
discussed previously.
You can view or change the default limits for the Exchange organization by completing the following steps:
-
In the Exchange Management Console, expand the Organization Configuration node, and then select the Hub Transport node.
-
In the main pane, select the Global Settings tab and then
double-click Transport Settings. This displays the Transport Settings
Properties dialog box with the General tab selected by default, as
shown in Figure 1.
-
To set a maximum receive size limit, select the Maximum Receive Size
check box and then type the desired receive limit in the related text
box. The valid input range is 0 to 2,097,151 KB. If you clear the check
box or use a value of 0, no limit is imposed on the message size that
can be received by recipients in the organization.
-
To set a maximum send size limit, select the Maximum Send Size check
box and then type the desired send limit in the related text box. The
valid input range is 0 to 2,097,151 KB. If you clear the check box or
use a value of 0, no limit is imposed on the message size that can be
sent by senders in the organization.
-
To set a maximum number of recipients limit, select the Maximum
Number Of Recipients check box and then type the desired limit in the
related text box. The valid input range is 0 to 2,147,483,647. If you
clear the check box or use a value of 0, no limit is imposed on the
number of recipients in a message. Note that Exchange handles an
unexpanded distribution group as one recipient.
-
Click OK to apply your settings.
In the Exchange Management Shell, you assign the desired transport limits using the Set-TransportConfig cmdlet, as shown in Example 1.
The –MaxReceiveSize and –MaxSendSize parameters set the maximum receive
size and maximum send size, respectively. MaxRecipientEnvelopeLimit
sets the maximum number of recipients in a message. When you use the
–MaxReceiveSize and –MaxSendSize parameters, you must specify the units
for values using KB for kilobytes, MB for megabytes, or GB for
gigabytes. Your changes are made at the organization level and apply to
the entire Exchange Server 2010 organization.
Example 1. Setting transport limits
Syntax
Set-TransportConfig [-Identity OrgId] [-DomainController DCName]
[-MaxReceiveSize <'MaxSize' | 'Unlimited'>]
[-MaxSendSize <'MaxSize' | 'Unlimited'>]
[-MaxRecipientEnvelopeLimit <'MaxRecipients' | 'Unlimited'>]
Usage
Set-TransportConfig -MaxReceiveSize '15MB' -MaxSendSize '15MB'
-MaxRecipientEnvelopeLimit '1000'
