CP: Mailing List Subjects

Would it be possible for the Cypherpunks mailing list remailer to parse the Subject line to include a CP: at the beginning, or some notation so that Cypherpunk messages can be easily 'filtered' out from my Inbox? Also, about Microsoft's .PWL file format. Will they be releasing the new encryption method? Or are we not supposed to feel safe that our passwords are protected in Windows95.