Exchange 2010 Message Limits

There’s a few places to change this and that’s global settings as well as the connectors.

To adjust your transport send/receive limits.

Global Settings Organization Configuration->Hub Transport->Global Settings->Properties of Transport Settings

Then you must modify the connectors found here: Send Connector Organization Configuration->Hub Transport->Send Connectors->Properties of Default Send Here you can adjust your send connectors default maximum message size Receive Connector Server Configuration->Hub Transport->Receive Connectors Pane->Properties of Default