North American Network Operators Group
Date Prev | Date Next |
Date Index |
Thread Index |
Author Index |
Historical
Re: Mailserver requirements
- From: Daniel Roesen
- Date: Mon Apr 05 18:57:13 2004
On Mon, Apr 05, 2004 at 11:53:15PM +0200, Arnold Nipper wrote:
> >>of course this server does have a reverse mapping. But this reverse
> >>mapped doamin does not have an MX record.
> >
> > Does it have an A RR?
>
> It also does have an A RR. And the forward mapping does also match the
> IP address.
OK, so the check is even broken in what it probably tries to verify...
that the reverse-domain of the sender IP would (possibly) be able to
receive mail (bounces).
> > Anyway... it's a heuristic which definately does give false positives.
> > The only requirement is that IF a domain/host accepts mail there MUST be
> > a postmaster@ address.
>
> In this case the host *sends* mail ...
Sure. I was discussing the requirements for domains regarding email.
In this specific case, "domain" being the domain of the PTR of the
sending MTA host.
Regards,
Daniel
|
