North American Network Operators Group

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Re: qmail smtp-auth bug allows open relay

  • From: Stephen Sprunk
  • Date: Sat Jul 19 18:59:38 2003

Thus spake "John Brown" <[email protected]>
> seems that there are installs of the smtp-auth patch
> to qmail that accept anything as a user name and password
> and thus allow you to connect.
> is one URL that talks about this.
> ...
> Some early docs on setting up qmail based smtp-auth systems
> had the config infor incorrect.  This leads to /usr/bin/true
> being used as the password checker. :(

That isn't a bug; it's a documentation problem and/or incompetent admin,
depending on how generous you're feeling.


Stephen Sprunk         "God does not play dice."  --Albert Einstein
CCIE #3723         "God is an inveterate gambler, and He throws the
K5SSS        dice at every possible opportunity." --Stephen Hawking