-----Original Message----- From: Sahil Tandon <[EMAIL PROTECTED]> To: postfix-users@postfix.org Date: Wed, 1 Oct 2008 23:03:45 -0400 Subject: Re: receiving smtpd[25253] error from sender
> > Wray, Oran <[EMAIL PROTECTED]> wrote: > > > smtpd[25253]: NOQUEUE: reject: RCPT from > > mailgw1.per-se.com[199.190.235.46]: 450 4.1.8 > > <[EMAIL PROTECTED]>: Sender address rejected: Domain not found; > > from=<[EMAIL PROTECTED]> to=<[EMAIL PROTECTED]> proto=ESMTP > > helo=<mailgw1.per-se.com> > > Please post the output of 'postconf -n' and follow the instructions in > the DEBUG_README (a document to which you were referred upon subscribing > to this mailing list) when asking for help. > > The rejecting server has probably specified > reject_unknown_sender_domain: > > http://www.postfix.org/postconf.5.html#reject_unknown_sender_domain > > % host css2.ndcorp.com > Host css2.ndcorp.com not found: 3(NXDOMAIN) ?! For domain lookup You should use whois instead of host # whois css2.ndcorp.com [Querying whois.verisign-grs.com] [whois.verisign-grs.com] Whois Server Version 2.0 Domain names in the .com and .net domains can now be registered with many different competing registrars. Go to http://www.internic.net for detailed information. No match for domain "CSS2.NDCORP.COM". >>> Last update of whois database: Thu, 02 Oct 2008 03:40:28 EDT <<<