spamming of IETF WG lists by IEEE conferences

I don't suppose IETF could formally object to IEEE for the latter's
spamming of certain IETF WG mailing lists?   A couple of the lists
that I maintain have been repeatedly spammed by IEEE conference
announcements.  The response to my complaints has generally been that
the guy who did the spamming got the list from higher-ups at IEEE,
so he's not responsible...

Keith