You should be able to generate emails via Database Enquiry.
You would search with something like:-
bpy.ptype Equal to pc
BPY.Term.date Equal to
BCM.Contactpref Equal to Email
(Obviously add whatever parameters you need).
Then select the 'Generate letters/diary notes/memos/emails' option;
then 'Email Messages'
Once you have entered 'Subject' etc. you will have different options on how to create the email body, I use a Word template. Obviously before any of the above you will have to setup an appropriate OpenWord template.
Ideally for any batch printing/emailing you would use OpenDocumentCentre but dependant on the volumes you run at a time OPM should work. You will probably need to press 'send' on each email as they pop up though.
Disclaimer: Always be careful when doing anything en masse! Test with a small number of dummy policies first! Remember, if you need any help with this - Mark Sollis is a consultant who offers such services.
karl's post in Green Cards and contacting Clients was marked as the answer