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The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

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Re: [vox-tech] Re: strange postfix error message
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Re: [vox-tech] Re: strange postfix error message



Sorry, I could've been clearer. A "relay" can also just mean the mail
program that is trying to send mail to your server. It wasn't
necessarily trying to use /your/ server to relay.

Basically, what I'm saying is that the other mail program was not
speaking correctly to your mail server. This almost certainly means that
it was a non-mainstream, "custom" program, which very frequently means a
spambot. The intended "From" line looked like it was probably a credict
card offer from Chase. I've recently been getting "phone spam" from
these guys.

Unless you already own a chase credit card, I'd say a from address of
"offers@chase.com" (or whatever it was) sounds very much like SPAM.
Coupled with the fact that they were using a broken mailer, and it's
pretty much a foregone conclusion.

It's impossible to say whether they were trying to use your machine as a
relay, or were trying to send mail to you directly. No matter what
machine it was talking to, it would have failed, since it wasn't
"speaking" correctly.

On Sat, Apr 22, 2006 at 12:06:03PM -0700, Cylar Z wrote:
> What does that mean? Was the attempt to force my
> machine to relay, successful or not?
> 
> > It looks to me like the relay started sending the
> > message content before
> > it issued an SMTP DATA command.

-- 
Micah J. Cowan
Programmer, musician, typesetting enthusiast, gamer...
http://micah.cowan.name/
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