i try to keep a list of goog's ipv6 email space and don't deliver to it; rather using ipv4 instead. unfortunately, goog does not cooperate with dnswl.org, so this can not be automated.
this is mildly damaging to the ipv6 religion, but i don't let that spoil my coffee. their lack of cooperation with the dns good list means inbound from them gets dropped when one of their outbound smtp senders gets badlisted, which they often do. i do not let that spoil my coffee either. i would not want to work for goog's email service; too much pain. randy
