Re: Subtle qmail bug? (was Re: Handling an MX record of 0.0.0.0 or 127.0.0.1)

[Dave Sill]

Matt Brown <[EMAIL PROTECTED]> wrote:

>This has been a feature of recent spam, which is probably why it's now
>an issue.  Several spam senders are now having sender addresses of
><spammer>@<spamdomain>, where <spamdomain> resolves via DNS to
>'0.0.0.0'.
>
>Eventually qmail rejects the message because it recognises that it's
>looped around too much, of course.

Here's a possible fix. In control/virtualdomains:

  [0.0.0.0]:alias-devnull

And in ~alias/.qmail-devnull-default

  #

Which should throw away all mail to MX's resolving to 0.0.0.0.

-Dave