Setting Message Size Limits in Exchange 2010 and Exchange 2007

Organizational limits

The organizational send and receive size limits apply to all Exchange servers in the Organization. The default is 10MB.

You can modify the organizational message size limits using the Set-TransportConfig cmdlet from the Exchange shell:

Set-TransportConfig -MaxReceiveSize 40MB -MaxSendSize 40MB

In Exchange 2007 SP1 and later, you can also set the organizational message size limits using the EMC by going to Organization Configuration | Hub Transport | Global Settings tab | Transport Settings | properties | General tab.

Ex2007-TransportSettings

Receive Connector limit

To modify the maximum message size on a Receive Connector using the Exchange console, select Server Configuration | Hub Transport | select a Hub Transport server | Receive Connectors -> select a connector | Properties | General tab.

Ex2007-ReceiveConnMaxMsgSize

To set ReceiveConnector limit using the shell:

Set-ReceiveConnector “CONNECTOR NAME” -MaxMessageSize 40Mb

Send Connector limit

Send Connectors are used for sending outbound messages to the internet or particular address spaces (domains). Edge Transport servers also have a Send Connector to send inbound messages to Hub Transport servers in an AD Site. To modify the maximum message size on Send Connectors, select Organization Configuration | Hub Transport | Send Connectors -> select connector | Properties | General tab.

Ex2007-SendConnMaxMsgSize

To set SendConnector limit using the shell:

Set-SendConnector “CONNECTOR NAME” -MaxMessageSize 40Mb

 

Source: http://exchangepedia.com

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