Re: DNS Record(s) Needed for OWA?
From: Andrew Hodgson (me3_at_privacy.net)
Date: 08/22/04
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Date: Sun, 22 Aug 2004 23:12:26 +0100
On Sat, 21 Aug 2004 16:55:02 -0700,
<anonymous@discussions.microsoft.com> wrote:
>I've decided to use a domain name that we already own.
>The only problem is the server that domain name's A Record
>is registered for is in another state. For certain reasons
>I have to leave the webpage on that server. It hosts a
>hurricane watch page, and since this server is about
>10,000 feet from the gulf of mexico, if a hurricane did
>hit here, there would be no server left to track the
>hurricane. Anyways, to get to my point... I was wondering
>if I had the MX record point to this server and left the A
>Record pointing to the server off-site, would that be
>enough for Outlook Web Access to find this server to use
>for email? Or does Outlook Web Access resolve to the A
>Record instead of the MX Record? If OWA won't work with
>simply the MX record pointing to this server, POP3 will
>still work, right? I would like to use OWA, but I will
>fall back on POP3 if I have to. Thanks for your help and
>time.
The following will work:
Set the primary MX to be something like mail.yourdomain.com, create an
A record for mail.yourdomain.com which points to the Exchange server.
Exchange will be the first line mail receiver, and if users go to
https://mail.yourdomain.com/exchange/, they will get OWA. If you put
a secondary MX record in as well, if the Exchange server goes down
mail will get delivered to a second server until the Exchange server
can pick it up again (usually via SMTP store and forward). Here is
the scenario in DNS notation:
yourdomain.com. in a ip.of.external.site
yourdomain.com. in mx 10 mail.yourdomain.com.
yourdomain.com. in mx 20 backup.mailserver.machine
mail.yourdomain.com. in a ip.address.of.exchange.server.
If you gave us real data (i.e, domain names/IP addresses), we could
construct you real data for you to give to your ISP or whoever alters
the records at your site.
Andrew.
-- Andrew Hodgson in Bromyard, Herefordshire, UK. My Email: use <andrew at hodgsonfamily dot org>.
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