We need to use the world's best anti-anti-spam technology. The stuff that generates random spam message texts to sneak past spam filters. Maybe combine something like SCIgen [1] with a corpus of "interesting" texts?
I'm guessing they care a lot about the network, not just the content. They'll realise you work in IT, tag you as "linux using trouble maker", then mostly ignore you. Unless you work for the NSA, then they'll kick you out, and maybe send some people over to search your home.
[1] http://pdos.csail.mit.edu/scigen/