This just in from Richard at spamcop.....

"This is a shared IP belonging to Intuit, which has been sending spam to
our traps and/or users. We have seen a large increase in spam from Zoom
IP space, causing more of their IP addresses to be listed. Intuit has a
bug in their systems that allows spammers to exploit and send large
volumes of spam through their servers. Until Intuit fixes this exploit
so they stop sending large volumes of spam to our traps their IP
addresses will be subject to listing just like any other spam source.

You will have to discuss the problem with Intuit and perhaps ask to be
moved to an IP that doesn't send spam."

QuickBS?  Are you listening?  You can thank me later.

PS: I just emailed the president of Intuit (yes really) inviting him to view this thread.