Google's anti-spam implementation merits no more than a "D" grade; it makes a number of obvious, well-known design and implementation errors, the false positive rate is appallingly high, and then there's the matter of *outbound* filtering, which is always far more important than inbound.
Of course, this still puts it far ahead of Yahoo and Hotmail, which earn an "F" only because "Z" is not an available grade. ---rsk _______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.