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Re: Accounting and Billback with faxmail
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On Tue, 21 Apr 1998, Michael Ferioli wrote:
> I know this question has been asked a million times and I even
> quote the bottom of the man page for faxmail:
> Because a sender's identity in an electronic mail message is
> inherently untrustworthy, using faxmail to build a mail to
> fax gateway is problematic. Unless mail service is somehow
> restricted or the sender's identity is verified using a
> mechanism such as RFC 1847's multipart/signed MIME type
> there is no reliable way to restrict access to facilities
> setup with faxmail.
> Ok, so I understand the problem. Does anyone have a real world
> How about using the MTA's logs to cross reference to the xferlog?
> But then again, the source IP could be spoofed.
> Does anyone have any clue how an ISP can setup a mail to fax
> gateway with some kind of reliable billback solution?
This just came up. Run procmail for the "fax" recipient username,
and have procmail do all the verification of IP address, signatures,
etc., then call the faxmail program.
Senior Engineer, CIRL
Mass. Eye and Ear Infirmary
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