[Exim] verify_sender except those in a list

Originally to: All

I want to use the verify_sender excrpt for certain mail hosts, ie
yahoogroups etc. Is this possible

Sean
--

 GPG Key Id 120A02FB ICQ: 679813  Jabber: tcobone@???
            TCOB1.net hosting service now availble
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
This list is gated to Fidonet (http://www.fidonet.ca) Technology
by TCOB1.net. If you feel this message is Off Topic or spam
please contact Sean Rima (sean@???)
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-