Yavuz Maslak wrote:
> I use spamassassin3.2.x
>
> I want spamassassin to give a score according to reverse name of a source ip
> address.
> I think of doing for some dynamic ip addresses.
>
> How can I do that as a rule ?
>

You might want to look at how RDNS_DYNAMIC is implemented in
20_dynrdns.cf. That's exactly what this part of the default ruleset does.