Exchange Server – Outbound Mail Failure
What causes this?
Subject: Notification: Outbound Mail Failure – A protocol error occurred.
A mail message was not sent due to a protocol error.
2431464 bytes exceeds server limit of 1572864
The message that caused this notification was:
To: <123@hotmail.com>
From:
Subject: FW: KF Easter Leaflets
Thanks for your help