On Sun, Nov 07, 1999 at 09:30:32PM +0100, Andres Mendez wrote:
> My SMTP server has to work relaying everyone
Are you sure?
> so I can't stop spam checking the IP the message comes from.
>
> I've though that all the e-mails that my server has to process must be sent
> by people whose mail ends with "redys.com".
>
> So I want that the SMPT server stops any e-mail whose user e-mail address
> does not contain "redys.com".
>
> I've been looking for spam filters, but they all use blocking lists (of well
> know spammers) or IPs. Is there any program to check this?
>
> I use tcpserver with qmail.
Note that since the envelope sender on a message is trivial to forge, there's
no real security using this method. If you feel you must do this, however, this
patch will do the trick: http://www.palomine.net/qmail/relaymailfrom.html.
Chris
