Exactly... however - many mail servers _are_ misconfigured. especially those using an external-internal relay... >Sit back and watch absolutely nothing happen, unless both mailers are >misconfigured. Even the venerable RFC821 >(http://www.faqs.org/rfcs/std/std10.html) notes that: > > Of course, server-SMTPs should not send notification > messages about problems with notification messages. > Technical Incursion Countermeasures consultingat_private http://www.ticm.com/ voice mail/fax: (+65)459 6373(UTC+8 hrs) The Insider - a e'zine on Computer security Call for papers Vol 3 Issue 2 http://www.ticm.com/info/insider/index.html
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