PTR/RDNS Records for Mail Server

[joximu]

Well, you need a zonefile like this:

example: ip is 12.34.56.78

myipblock.zone:
$TTL 1D
@ IN SOA [soa record]
IN NS [your ns - ]
IN PTR my.own.hostname.tld.

and in the named.conf it may look like this:

zone "77.56.34.12.in-addr.arpa" in {
type master;
file "myipblock.zone";
};

so, the specia thing is the ".in-addr.arpa" and the PTR

Maybe we'll bring ispcp to do that too :-) - but this has less priority...
/joximu