exchange 2010 email sending limit stuck at 2mb.

help...

Do the following:

Organizational limits

Set-TransportConfig -MaxReceiveSize 40MB -MaxSendSize 40MB

Select allOpen in new window

Receive Connector limit

Set-ReceiveConnector “CONNECTOR NAME” -MaxMessageSize 40Mb

Select allOpen in new window

Send Connector limit

Set-SendConnector “CONNECTOR NAME” -MaxMessageSize 40Mb

Select allOpen in new window

Recipient limits

Set-Mailbox “Joe Adams” -MaxSendSize 20Mb -MaxReceiveSize 20Mb

Select allOpen in new window

You can also set send receive limit using EMC
open your emc -> Organization Configuration -> Hub Transport -> Global Settings ->  and then go to transport settings property here you can set maximum send size, maximum receive size etc,

To send send connector limit Go to  Organization Configuration -> Hub Transport -> Sen Connector go to property  and under general tab you can send the maximum send limits

To set receive connector limits go to under server configuration -> Hub transport -> and got you default receive connector property  and under general tab  you can set receive size limits

To set Mailbox send receive limits goto mailbox property go to mail flow tab and select Message Size Restriction and click on properties and here you can set send receive limits for a single user  

but if you don't want to mange it from all the setting just uncheck it from all the object expect global settings. Set your limits only on global settings and that will be applied to all

more info problem only occurs when sending through a smart host not directly out through server

If you have set all the limits as per my comment, your exchange limit should be fine. What smart host are you relaying your messages to?

do you have a separate connector going to your smart host that you haven't set the limit for?  Is there a limit on the smart host itself?  Verify the route to the smart host starting from the Exchange Send Connector that sends it and verify all limits are set to what you want.