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From: Dean Strik (dean_at_stack.nl)
Date: Sun Feb 16 2003 - 16:01:11 CST

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    John Payne wrote:
    > --On Sunday, February 02, 2003 05:09:29 PM -0500 Wietse Venema
    > <wietseporcupine.org> wrote:
    >
    > >Uh-oh, open proxy. There are (too) many of them, and they
    > >are actively being "traded".
    >
    > Could postfix alias 'POST' to 'QUIT' ? Only time you'd see POST is when a
    > HTTP proxy is being abused to contact your mailserver.

    Although I'm not Wietse, I can safely say 'no' here.
    Try requiring HELO/EHLO (smtpd_helo_required = yes) if you're bothered
    about non-SMTP crap. Note that some legit mail can be rejected though.

    Personally, I'd ignore it altogether. It doesn't pose any threat. 

    -- 
Dean C. Strik             Eindhoven University of Technology
deanstack.nl  |  deanipnet6.org  |  http://www.ipnet6.org/
"This isn't right. This isn't even wrong." -- Wolfgang Pauli