How do I stop junk Entourage emails with future dates?

[bythecshore]

In the past few weeks I've started getting a lot of emails with 'sent' dates in the future. I don't know how the senders make this happen, but it causes the email to go to the top of my email list which is exactly what these spammers want to happen.

Does anyone know how to block these, or make a rule that would send them to a junk filter?

Thanks.