Exchange – Message Not Sent ‘Because there are too many recipients’

 

When attempting to send an email to a large amount of recipients, you may see the following error;

   

This message wasn’t delivered to anyone because there are too many recipients, the limit is {number}. This message has {number} recipients

 

To check what the limit is set to launch the Exchange Management Shell, and ecxecute the following command;

  [box type=”shadow”]Get-TranportConfig[/box]    

To raise the limit (in this example to 2000) use the following command;

  [box type=”shadow”]Set-TranportConfig -MaxRecipientEnvelopeLimit 2000[/box]