In article <Pine.LNX.4.10.10001152253220.17784-100000@pimlico.magmom.net>, Patrick Evans <pre@pre.org> wrote:
The only thing we can do which allows all of our customers to send mail out with their address as the From: header, and not force them to use our dialup service (if we had one) is to run a completely open relay.
I don't understand why you ca'n't allow relaying only for people with an envelope sender that has one of your customer's domains. -- Shields.
On 17 Jan 2000, Michael Shields wrote:
I don't understand why you ca'n't allow relaying only for people with an envelope sender that has one of your customer's domains.
Sometime try this: (Status codes not necessarily correct) shell> telnet mailserver.yourdomain.com 220 Mail Server Ready ESMTP HELO iMach.com 250 Pleased to meet you, iMach.com MAIL FROM: <spammer@yourdomain.com> 250 ok RCPT TO: <recipient@of.spam.com> 250 ok DATA 250 Send Data one line at a time followed by a . to: make.money.fast@wherever.com from: make.money.fast@yourdomain.com subject: Make money fast, you looser. You can now make money faster than ever before just send us a bazillion dollars first. . 250 Message accepted for delivery QUIT 250 Goodbye Or, in other words, you can put ANYTHING YOU WANT in the sender envelope. That is what is on the mail-from line. - Forrest W. Christian (forrestc@imach.com) KD7EHZ ---------------------------------------------------------------------- iMach, Ltd., P.O. Box 5749, Helena, MT 59604 http://www.imach.com Solutions for your high-tech problems. (406)-442-6648 ----------------------------------------------------------------------
participants (3)
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Forrest W. Christian -
Mark Milhollan -
Michael Shields