Hi, I shot myself in the foot once and got this exact same behavior. I had messed up my DNS and MY postfix couldn't resolve MY host name. I had accidently deleted the host name that resolves to postfix's $myhostname.
Hope this helps, Bill Shirley > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of David Guntner > Sent: Wednesday, September 25, 2002 10:48 AM > To: [EMAIL PROTECTED] > Subject: [expert] Postfix: How does reject_unknown_client work? > > > I'm a bit puzzled here and hope someone can enlighten me a bit. > > In my Postfix configuration, I've got reject_unknown_client > set as one of the > items in the smtpd_recipient_restrictions list. In my logs, > I've been seeing > entries saying "450 Client host rejected: cannot find your > hostname, [IP > address]." Now, the odd thing is that if I do a "host [ip > address]" in a > shell window, the IP address resolves into a hostname. Apparently, > reject_unknown_client doesn't work as I was expecting, based > on what I read > in the Postfix documentation. So, can someone give me a > run-down on how this > parameter actually works? Any info/insight would be appreciated. > > --Dave > >
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