Kinda OT: "valid mail server"?

[Andrew Mathews]

Matt Nelson wrote:
> 
> 
> ------------------------------------------------------------------------
> 
> Subject:
> Totally OT: valid mail server
> From:
> Matt Nelson <n5tkn at zonekeeper.org>
> Date:
> 21 Oct 2002 18:21:05 -0500
> To:
> isp-tech at isp-tech.com
> 
> 
> Can anyone tell me why Redhat's list server is rejecting my subscription
> attempts, saying I must use a valid mail server?  I don't have this
> problem with any other list I subscribe to.  I run my own mail servers,
> but do not run my own reverse DNS.  Could this be the problem?  Even so,
> why would Redhat be that paranoid?
> 
> Thanks
> 
> --
> Matt
> 
> 
> ------------------------------------------------------------------------
<snip>

Because your DNS won't resolve.

Received: from harland-wolfe.zonekeeper.org
	(adsl-65-64-31-21.dsl.ltrkar.swbell.net [65.64.31.21])
	by linux-sxs.org (8.12.6/8.12.6) with ESMTP id g9M3r0sb002703
	for <linux-users at linux-sxs.org>; Mon, 21 Oct 2002 23:53:00 -0400
Received: from [192.168.1.5] (adsl-65-64-31-17.dsl.ltrkar.swbell.net
	[65.64.31.17])
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	for <linux-users at linux-sxs.org>; Mon, 21 Oct 2002 22:50:10 -0500
Subject: Kinda OT: "valid mail server"?

nslookup -sil zonekeeper.org
Server:         198.59.128.53
Address:        198.59.128.53#53

Non-authoritative answer:
*** Can't find zonekeeper.org: No answer


[root at andy andy]# nslookup -sil harland-wolfe.zonekeeper.org
Server:         198.59.128.53
Address:        198.59.128.53#53

Non-authoritative answer:
Name:   harland-wolfe.zonekeeper.org
Address: 65.64.31.21

Your mail server may handle mail for zonekeeper.org and 
harland-wolfe.zonekeeper.org, but only the 2nd one resolves, so if you 
use an address of n5tkn at harland-wolfe.zonekeeper.org the problem should 
go away.
-- 
Andrew Mathews
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