flexfax: mail to fax

["Mr. Nopadon Sae-Han" <nopadon@hiss.scb.co.th>]

Dear All,
	I use Hylafax 4.1beta2 on Linux and work great.
I set up mail-to-fax I can send fax by mail like user@1234567.fax
that work. :-)
	My problem is how can I use mail-to-fax and use
another fax server to send fax with cut long distance digit tel.

Example
	I define form user@numberfax.longdistance.fax for send mail-to-fax
	If send mail to user@1234567.02.fax my MX server will forward 
to local faxserver(mail.02.com) with user@1234567.fax recipients address
	If send mail to user@123456.034.fax my MX server will forward
to remote faxserver(mail.034.com) with user@123456.fax recipients address

	I try to find doc on the Internet but not found solution.

Thank You,
-Nop