Brother MFC 8840D - Manual (Page 131)

12 - 10 INTERNET FAX (MFC ONLY)
To use this feature you must set the Notification option within the
Setup Mail RX and Setup Mail TX options.
Setup Mail (TX)
You can set the Notification option in the Setup Mail TX option to
either ON or OFF. When switched to ON an additional field of
information is sent with the image data. This field is named MDN.
MDN
Mail Disposition Notification - This field requests the status of the I-
Fax / E-mail message after delivery through the SMTP (send mail
transfer protocol) transport system. Once the message has arrived
at the Receiving station this data is used when the MFC or user
reads or prints the received I-Fax or E-mail. For example, if the
message is opened for reading or is printed the receiving station
sends back a notification to the original sending machine or user.
The receiving station must support the MDN field in order to be able
to send a notification report, otherwise the request will be ignored.
Setup Mail (RX)
There are three possible settings for this option ON/MDN/OFF.
Receive Notification “ON”
When switched to “ON” a fixed message is sent back to the sending
station to indicate successful reception and processing of the
message. These fixed messages depend on the operation requested
by the sending station.
Report messages consist of
SUCCESS : Received From
Receive Notification “MDN”
When switched to “MDN” a report as described above is sent back to
the sending station if the originating station sent the “MDN” field to
request confirmation.
Receive Notification “OFF”
OFF - Switches all forms of receive notification OFF, no messages
are send back to the sending station regardless of the request.