James, > I'm sending this reply using Thunderbird rather than Mail.app to see how > the headers differ. > > I've tried sending without going through the ASSP anti-spam proxy to no > avail. Likewise using amavisd-new.
Yes, this one is a PASS! It still has two MIME-Version header fields, but unlike your previous mail, both are now "MIME-Version: 1.0", while previously one of them was modified after signing. Mark
