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This article was posted to the Usenet group alt.hackers in 1995; any technical information is probably outdated.

Re: Sendmail security holes..

Article: 7483 of alt.hackers
From: (ImAMoron)
Newsgroups: alt.hackers
Subject: Re: Sendmail security holes..
Date: Sat, 04 Mar 95 23:39:03 GMT
Organization: What' that?
Lines: 24
Approved: No.  What you gonna do about it?
Message-ID: 3jatmn$
X-Newsreader: News Xpress Version 1.0 Beta #3
Status: RO

In article <3jb1g9$>, (Stuart Yeates) wrote:
}ImAMoron ( wrote:
} Have you figured out how to make it cancel a post when the originator used
} invalid address?
}For the originator to have used an invalid address, (s)he must have been
}connected to a brain-dead (or at least old) site. Simply crank up your
}favourite news software pointing to this site and it should (in theory)
}work ok. Some software is more selective about addresses for cancel
}postings, in which case you may have to use ihave.
}Do both of the above.

Yes, but I was talking about doing it with this software, News Express B3.  Go
into Config Setup.  Change your EMail address to be the same as the sender
and select OK.  Normally, that would be enough, but with an invalid address,
it kicks back on you.  Ignore it, close the window by double-clicking the
corner, and cancel the post.  Worked on a spam a few days ago.

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