If an e-mail fails to be sent due to a transmission error, the machine sends a transmission error e-mail notification to the sender. If an e-mail could not be sent using the forward or distribute function, a transmission error e-mail notification will be sent to the destination of the e-mail address for forwarding or distribution.
If there is an additional user registered e-mail address or administrator e-mail address, a transmission error e-mail notification will be sent to that address.
If a transmission error e-mail notification cannot be sent, the machine prints the Transmission Error Report.