Bouncing mail w/ no reverse DNS

[Sgt Chains]

Forgive me if this is somewhere in the Docs, I can't find it.

I would like to bounce inbound mail that comes in that can't resolve
reverse DNS.

A lot of net admins out there have started to not setup DNS entries for
their dial-up accounts believing that this is a better approach than
registering w/ the MAPS/DUL list.

Personally I don't agree... but I'm getting a lot of trespass spam via
non resolved DNS.

Any ideas?

--Larry
mailto:[EMAIL PROTECTED]