A suggestion to ALL e-mail programs... keep your "Junk E-mail" folder working the way it works, but add a "Really Bad Grammer" folder as well and dump everything that has more than N grammer errors (user defined) in it.
I just got a piece of junk e-mail in my inbox that passed 1) my company's expensive SPAM filters and 2) Outlook's junk e-mail rules engine. It started something like this:
"subside sill as transpire a is agreeable southern but annexation, blackmailer a altar a was medication an playmate humid become the of peak, ..."
Now, sure, all of my sisters', friends', and boss' e-mails will get thrown in the "Really Bad Grammer" folder from now on, but I'm willing to accept the consequences.