... and Exchange 2003 stopped delivering messages to mailboxes.
Rolled it back, and everything worked fine ^H^H^H^H just as it used to.
I may be missing the point of these "fixes", but surely "security updates" should actually be tested at some stage?
"Being against torture ought to be sort of a multipartisan thing." -- Karl Lehenbauer, as amended by Jeff Daiell, a Libertarian