From: Greg Stark <gsstark@mit.edu>
Cc: ding@gnus.org, xemacs@xemacs.org, linux-india@aunet.org
Subject: Re: sender domain must exist...
Date: 14 Nov 1999 14:37:24 -0500 [thread overview]
Message-ID: <87so28zwy3.fsf@HSE-Montreal-ppp19485.qc.sympatico.ca> (raw)
In-Reply-To: Norbert Koch's message of "29 Oct 1999 07:56:36 +0200"
Norbert Koch <n.koch@eai-delta.de> writes:
> Prateek Sadhukhan <psadhukhan@hss.hns.com> writes:
>
> > I am behind a firewall. my company domain is hss.hns.com, while my
> > machine is psadhukhan.hss.hns.com. Its seems to me that when the
> > receiver of the mail tries to authenticate the domain, it tries to
> > find the domain psadhukhan.hss.hns.com which being behind the firewall
> > is not visible to it. But then this should be a problem with any mails
> > send from my box whether i use gnus or pine.
Usually this error message actually refers to the domain name in the HELO of
the SMTP connection, it has to match the DNS PTR record for the ip address of
the interface the mail is coming from.
This is a blatant violation of the RFC 822 which specifically says that the
receiving end must not require this. But you should check all your DNS servers
and make sure they all have PTR records that match the information your MTA is
using.
--
greg
prev parent reply other threads:[~1999-11-14 19:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-10-29 11:27 Prateek Sadhukhan
1999-10-29 5:56 ` Norbert Koch
1999-11-14 19:37 ` Greg Stark [this message]
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