Setting Message Size Limits ifor Exchange 2010 organization

 

Although you may have setup Max message size on every Hub sending /receiving connectors to more than 10 MB, say 20 MB, your users may still the following error:

 

The recipient won't be able to receive this message because it's too large.

The maximum message size that's allowed is 9 MB. This message is 10 MB.

 

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 20MB -MaxSendSize 20MB