Re: Can anyone tell me what's wrong with this domain?

"Steve Linberg" <slinberg@crocker.com> wrote in message
news:becfkq$g18$1@sf1.isc.org...
> Hi folks.
>
> I run a domain called literacytent.org, which is a small domain
> providing a variety of mostly web-based services and hosting.
>
> A while back I set up a subdomain "lists.literacytent.org" for running
> mailing lists on. I still get the occasional rejected message to a
> subscriber with this sort of message:
>
> Jul 4 12:17:43 shagrat qmail: 1057335463.716148 delivery 42901:
> deferral:sender_was_rejected./Remote_host_said:_450_4.4.1_Sender_domain_n
> ot_found_in_DNS/
>
The reverse DNS does not match the forward record. Some mail servers will
reject it for that reason.