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Re: [cobalt-users] [RaQ3] Sendmail problem- domain must exist
- Subject: Re: [cobalt-users] [RaQ3] Sendmail problem- domain must exist
- From: "Steve Werby" <steve-lists@xxxxxxxxxxxx>
- Date: Tue Jun 5 21:33:20 2001
- List-id: Mailing list for users to share thoughts on Cobalt products. <cobalt-users.list.cobalt.com>
"Glen Scott" <glen@xxxxxxxxxxxxxxxxxxxx> wrote:
> I am concerned about the following message in my syslog:
>
> Jun 6 09:55:10 us sendmail[24646]: JAA24646: ruleset=check_mail,
> arg1=<publicnet-owner@xxxxxxxxxxxxxxxxxxxxx>,
> relay=mailhost.netbenefit.co.uk [212.53.64.39] (may be forged),
> reject=501 <publicnet-owner@xxxxxxxxxxxxxxxxxxxxx>... Sender domain
> must exist
The domain does appear to exist, but its IP doesn't match the IP shown in
sendmail. That's why it shows that it may be forged. Perhaps the domain
was moved to a new IP and the change hasn't propagated in DNS yet.
[admin@ns admin]$ dig list.netbenefit.co.uk
<snip>
;; ANSWER SECTION:
list.netbenefit.co.uk. 5M IN A 212.53.64.57
/snip>
--
Steve Werby
President, Befriend Internet Services LLC
http://www.befriend.com/