On Tue, 11 Jun 2002 01:22:25 +0200 gianpaolo racca <[EMAIL PROTECTED]> wrote:
> On Saturday 01 June 2002 19:58, J. Craig Woods wrote: > > WRONG AGAIN! The mail server, smtp.mandrax.org is not, repeat *NOT*, > > doing a reverse dns lookup on ip addresses (please see my *many* posts > > on this issue). > > So what's the meaning of this message? > > <[EMAIL PROTECTED]>: host smtp.mandrax.org[63.209.80.243] said: > 450 > Client host rejected: cannot find your hostname, [111.222.333.444] Simple... your hostname is not known via DNS: $ host simpson.preciso.net Host simpson.preciso.net not found: 3(NXDOMAIN) > my public IP has obviously been hidden Why do people even bother...? headers rarely hide it... > Received: from simpson.preciso.net (217.133.237.104) Duh! :^) OK... so your next question will likely be: b-b-b-b-but, my IP is right there!?? Yup; but *this* message was forwarded by mail-8.tiscalinet.it [195.130.225.154] which doesn't have a "reject_unknown_client" rule (see http://www.postfix.org/uce.html#smtpd_client_restrictions)... so mail-8.tiscalinet.it got the message from 217.133.237.104 which identified itself via EHLO as simpson.preciso.net and never bothered to verify it... when the msg was forwarded on to mandrake, they verified mail-8.tiscalinet.it which... tada! $ host mail-8.tiscalinet.it mail-8.tiscalinet.it has address 195.130.225.154 returns the same IP it just connected to mandrake with... OK Craig, back into your court... LOL Pierre
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