RE: Not able to send to certain domains

  • From: "John Tolmachoff \(Lists\)" <johnlist@xxxxxxxxxxxxxxxxxxx>
  • To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
  • Date: Mon, 5 Apr 2004 17:14:48 -0700

Your firewall does not necessarily have anything to do with this.

It is a DNS issue, and you correct, there is no PTR records.

You will either need to have Sprint create the PTR records for you, or have
them delegate the IP zone to you and then you can have your DNS servers hold
the PTR records.

John Tolmachoff
eServices For You

> -----Original Message-----
> From: Juan Ibarra [mailto:jibarra@xxxxxxxxxxx]
> Sent: Monday, April 05, 2004 3:16 PM
> To: [ExchangeList]
> Subject: [exchangelist] Not able to send to certain domains
> Hell o to all.
> I moved to exchange 2003 from 5.5 over the weekend and I am having some
> problems sending to certain domains e.g EarthLink and others. When I
> send an email to these domains I get an error saying that their server
> could not resolved my domain.
> I believe they are trying to do a reverse look up on my domain to verify
> its authenticity.  I didn't have this problem before. I have changed my
> firewall settings as well,
> Any thoughts?
> Juan
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