Re: Understanding about dns and exchange

  • From: Danny <nocmonkey@xxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Fri, 24 Sep 2004 15:00:38 -0400

On Fri, 24 Sep 2004 14:44:13 -0400, Musser, Dale <musser@xxxxxxxxxxxxxx> wrote:
> OK
> I must be new at this because I am lost.
> I have no idea where to go next.
> This is my problem.
> We have a new exchange 2003 server installed and I am having the same
> problem with multiple people.
> Some emails come back as failures because the virtual SMTP server can
> not confirm the dns examples : yahoo and aol.
> I liked the days when we just sent all emails from our company to our
> internet providers smtp and let figure this all out but instead we send
> directly.
> I can look at the queues and see failures like and 3 emails
> trying to get out but no good.
> There must be something I am missing here, I have been reading books and
> doing searches on the internet and nothing.

It appears that you do not have reverse DNS setup on the IP address
your mail server utilizes. Go to and type in
your domain.


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