I was curious to try out rules in Mail, so I tested it out by setting up a rule to turn the text of emails from existing contacts red. It worked fine. I didn't actually want to keep that rule, so I deleted it. But those emails are still red. I created the exact same rule again, but this time set it to black. It's still red. I restored an earlier version of syncedrules.plist and unsyncedrules.plist from Time Machine, they're still red. How on Earth do I stop these rules from being applied, despite the fact that there are no rules set? Thanks.