This is NOT an anti-relay problem. You'd get an explicit reject that way.
This is a DNS problem .... check if your firewall NATs properly. Maybe it
is projecting an IP address like 10.0.0.xx to the outside world?
--- from your headers ---
Received: from iisxox.iis.stpn.soft.net (awadh [10.140.13.79])
by iisxox.iis.stpn.soft.net (8.9.3/8.9.3) with ESMTP id MAA13178
for <[EMAIL PROTECTED]>; Tue, 11 Apr 2000
12:34:47 +0530
--- end headers ---
I thought so :) Bad NAT .... and even if the stp mailserver (iisxox) is in
your office, it is stupid to be accepting mails from such an ip as
10.xx.xx.xx, 192.168.xx (any reserved, non public, IANA assigned IP).
Anyone can masquerade as localhost or a machine on your LAN, and your server
will merrily accept mail (or any other command) from him.
In fact, there are dozens more security holes if your server can be fooled
into thinking that a remote, unauthorized connection is actually a local
host / connected to your LAN.
Enable ipchains / ipfwadm rules to properly show your IP as the one which
Mantra's DHCP allots you, then you WONT have any problem.
Suresh Ramasubramanian | [EMAIL PROTECTED]
> -----Original Message-----
> From: Manu Viswanathan [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, April 11, 2000 12:25 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [LIH] sendmail hostname lookup failure
>
> UAA00234: to=<[EMAIL PROTECTED]>,
> <[EMAIL PROTECTED]>,
> delay=00:02:37, xdelay=00:01:00, mailer=relay,
> relay=del1.mantraonline.com,
> stat=Deferred: Name server: del1.mantraonline.com:
> host name lookup failure
>
> Using mantra's IP address for DS in sendmail.cf:
> ------------------------------------------------
> VAA00534: from=<[EMAIL PROTECTED]>, size=1014, class=0,
> pri=61014, nrcpts=2, msgid=<Pine...>
> VAA00534: to=<[EMAIL PROTECTED]>, delay=00:00:01, mailer=relay,
> stat=queued
> VAA00534: to=<[EMAIL PROTECTED]>, delay=00:00:01,
> mailer=relay, stat=queued
>
> VAA00534: to=<[EMAIL PROTECTED]>,<[EMAIL PROTECTED]>,
> delay=00:02:12, xdelay=00:00:02, mailer=relay,
> relay=202.56.230.1,
> stat=Host unknown (Name server: 202.56.230.1: host not found)
> VAA00534: DSN: Host unknown (Name server: 202.56.230.1: host not found)
>
> Using iisxox for DS in sendmail.cf; mail for myself is delivered:
> -----------------------------------------------------------------
> WAA00188: from=<[EMAIL PROTECTED]>, size=512, class=0,
> pri=60512, nrcpts=2, msgid=<Pine...>
> WAA00188: to=<[EMAIL PROTECTED]>, delay=00:00:00,
> mailer=relay, stat=queued
>
> WAA00188: to=<[EMAIL PROTECTED]>, delay=00:02:52,
> xdelay=00:01:44, mailer=relay,
> relay=iisxox.iis.stpn.soft.net. [12.10.197.85],
> stat=Sent (VAA22328 Message accepted for delivery)
>
> Using iisxox for DS in sendmail.cf; mail for someone else not delivered:
> ------------------------------------------------------------------------
> HAA00183: from=<[EMAIL PROTECTED]>, size=740, class=0,
> pri=30740, nrcpts=1, msgid=<Pine...>
> HAA00183: to=<[EMAIL PROTECTED]>, delay=00:00:00, mailer=relay,
> stat=queued
>
> HAA00183: to=<[EMAIL PROTECTED]>, delay=00:02:37, xdelay=00:01:04,
> mailer=relay, relay=iisxox.iis.stpn.soft.net. [12.10.197.85],
> stat=User unknown
> HAA00183: DSN: User unknown
>
> Regards,
> Manu.
>
> -----------------------------------------------------------------------
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