

The message contains diagnostic information for administrators, such as the following: User Name message couldn't be sent because it's too large. Your message wasn't delivered to anyone because it's too large. Or, you receive a non-delivery report (NDR) in your Inbox like this one: Subject: Undeliverable: If the problem persists, contact your administrator.

Try reducing the message size by removing or resizing any large attachments, and then resend. Error: Outlook cannot send the message because the message size exceeds the maximum limit set on the server.ĭetails: The message has been moved to the Drafts folder under On My Computer.

When you send an email message that contains a large attachment, you receive the following error messages in Outlook for Mac. You use Microsoft Outlook 2016 for Mac or Outlook for Mac 2011 to connect to a mailbox on a Microsoft Exchange server.
