[MlMt] rule (or some way) to delete all prior messages from same sender as selected message?

[Eric Sharakan]

Like many folks, I receive periodic mails from certain senders (weekly 
digest emails, sale info, etc).  Is there a way to set up a rule or 
something that, when looking at a message, I can instruct MM to delete 
all prior messages from the same sender in the current mailbox?

If not, please consider this a feature request. :-)

Thanks.

-Eric