This can be done using the Web Management Utility or through the front panel. The steps for configuring Fax Forward can be found in the User’s Guide supplied with your MFC.
Relay Broadcasting
This function allows the Brother MFC to receive a document over the Internet, and then relay it to other fax machines through conventional telephone lines.
If you wish to use your MFC as a relay broadcast device, you must specify the domain name that you trust at the MFC, in other words, the portion of the domain after the ‘@’ sign.
A trusted domain refers to the
Use care in selecting a trusted domain since any user on a trusted domain will be able to send a Relay Broadcast. You can register up to 10 domain names.
Relay Broadcast can support the relay of a document up to a maximum of 48 fax machines through conventional telephone lines.
Relay Broadcast from a MFC
FAX@brother.com UKFAX@brother.co.uk 123456789
INTERNET 
UKFAX@brother.co.uk (fax#123456789)
