forward DNS

12 May 2006 9:16 PM

RickyVene

Hi,

What should I use for our forward DNS? Our ISP provider (Bell Canada) or
DNS registor (zoneedit.com).

I'm confused.

Do I need to configure also the "Configure external DNS Servers:" on
Exchange 2003? With what DNS should I use, ISP or dns-registor?

Do I need a reverse DNS lookup too?

Thanks,
Ricky

12 May 2006 10:26 PM

Bharat Suneja [MVP]

If your Exchange server can resolve internet domains, don't need to do this.
RDNS - yes, you need a PTR for the sending (external/NATted) IP address -
doesn't have to resolve to fqdn of sending server, but it's a good thing if
it does.

--
Bharat Suneja
MVP - Exchange
www.zenprise.com
NEW blog location:
www.exchangepedia.com/blog
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Show quote

"RickyVene" <RickyV***@discussions.microsoft.com> wrote in message
news:CE7952F1-21D8-40CE-9B68-74E8AC894BF8@microsoft.com...
> Hi,
>
> What should I use for our forward DNS? Our ISP provider (Bell Canada) or
> DNS registor (zoneedit.com).
>
> I'm confused.
>
> Do I need to configure also the "Configure external DNS Servers:" on
> Exchange 2003? With what DNS should I use, ISP or dns-registor?
>
> Do I need a reverse DNS lookup too?
>
> Thanks,
> Ricky