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T.37Internet FAX User’s Guide 39
Domain Name Restrictions
You must register the domain names that your machine
will communicate with (receive data from) when
forwarding e-mail-to-fax.
This is intended to prevent unauthorized access of the
e-mail forwarding function.
• up to five (5) domain names may be registered.
• each domain name may be up to 64 characters long.
Your machine will only accept data from a sender when
• the sender’s domain name matches one of the
registered domain names
or
• the sender’s domain name is a sub-domain of one of
the registered domain names.
You can make a broadcast transmission to up to 10
recipients by specifying each telephone number in the
above mail address format.
How it Works
1 The client sends a message to the mail server using the
address format FAX=123@fax.abc.com.
A client can be a computer or an Internet Fax.
2 The mail server makes an enquiry to the DNS server about
fax.abc.com
3 The DNS server replies to the mail server with the IP
address of fax.abc.com.
4 The mail server forwards the message to the Internet Fax.
5 The Internet Fax then forwards the message to an F-Code
fax machine with the telephone number of 123.
It is also possible for an e-mail client to communicate
directly with this machine. To do this, specify the IP address
of this Internet Fax instead of the e-mail client’s SMTP server
address. Specify a recipient using the above address format
and attach a TIFF file in a format supported by this Internet
Fax, and you can have the TIFF file forwarded by fax on
reception.
Please note that it may not be possible to establish a
connection between this Internet Fax and some types of e-
mail clients.