Yet another Apple Mail question...

First off, wanna thank Mr. Noodles for some help he gave me a few weeks ago, on the "Run Rules On Folder Contents" rule.
I've read Paul1762's recent post about Apple Mail. Lotsa good info in that thread, and I'm not looking to do anything fancy. But...I just wanna delete Junk Mail messages older than xxxxx. That's all. Apple Mail doesn't do this, so I'm wondering if Hazel can do it. I've looked around, in both libraries, for a folder marked "Junk Mail" or some such, to no avail, so I'm thinking this ain't happening. But I figured I'd ask....
I've read Paul1762's recent post about Apple Mail. Lotsa good info in that thread, and I'm not looking to do anything fancy. But...I just wanna delete Junk Mail messages older than xxxxx. That's all. Apple Mail doesn't do this, so I'm wondering if Hazel can do it. I've looked around, in both libraries, for a folder marked "Junk Mail" or some such, to no avail, so I'm thinking this ain't happening. But I figured I'd ask....