Bruno Wolff III wrote:
On Sun, Dec 07, 2008 at 12:19:11 +0200,
Veli-Pekka Kestilä <fedora@xxxxxxxxx> wrote:
As far as I know you can have only one reverse map for one ip-address.
But for the e-mail server it should be enough for you to have one valid
forvard reverse pair.
Reverse maps are just PTR records. You can have more than one PTR record
for a domain name. Whether requestors will use more than one of them is outside
of your control.
But also keep in mind that if there are duplicate PTR addresses such as:
1 host1.domain1.com <-- this is the first match accepted.
1 host1.domain2.com
1 host2.domain1.com
1 host2.domain2.com
The first addressed matched is the one accepted while the rest
of the same addresses are not handled, or so I think. I noticed
this right away when I used dig or nslookup.
Kind regards,
Dan
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