Lately people at work have been sending with mailing lists in blind copies instead of just sending to the mailing lists. I think the intent is to prevent people from accidentally replying to all, but it means that these emails aren't sorted into their proper folders when they arrive.

I'd like to at least be able to sort them into a common folder, but these emails arrive with no "To:" line in the headers. I'm using Outlook 2007, and I can't figure out a way to use their built-in rule editor to create a rule that sorts these emails.

Is there a plugin that will allow me to sort emails like this, or a better rule editor?

Updated: I know this is very old, but this is still very annoying to me. Is there any way to sort these kinds of emails to their own folder?