Email filter by sender and subject for Atmail Client v6.x

We need a client side email filter for Atmail 6. Currently, the Atmail v6.x "webmail client" lack of email filter feature. We need a simple email filter to move new incoming email to specific email folder. The filter(s) only search "From" and "Subject" fields by keyword. Please design the email filter interface to compatable with different browser and mobile device like the current Atmail v6.x. Thanks. reference url: Atmail WebClient Evaluation is available here: [login to view URL] Atmail demo is available on Atmail website [login to view URL] Documentation on writing a plugin for Atmail is also available here http://support.atmail.com/display/DOCS/Creating+Plugins.