[Evolution] Script/Filter to delete duplicate messages?

[Moazam Raja <moazam raja sun com>]

While transferring my email from another e-mail client to Evolution,
I've managed to somehow create duplicate messages in my Inbox. 

Is there any script or filter which will allow me to auto-detect
existing duplicate messages and delete them? Of course, I would only
want the duplicate messages deleted and the original message should be
kept.

-Moazam