Email Filtering Tool / Plugin

I am looking for an email system programming expert to help architect and build a proprietary email filtering system. The first application would be a browser based client, widget, or plugin that works with the Yahoo email system. ## Deliverables I am trying to build a startup company and this project is to build a working prototype for initial user testing.? For someone (or a team) with the right knowledge and abilities, this could lead to a long term working relationship.? Ultimately I will want to build? email clients, widgets, or plugins for all email client systems (e.g. outlook, gmail, thunderbird, etc.), but the prototype should work with the web-based Yahoo! email client. Interested coders should have a thorough understanding of email systems and coding of various email clients (plugins, addins, widgets,? applications, etc.)? as well as Internet programming in general.? The details of the prototype application will be shared with likely candidates.? It? is basically going to filter or sort email messages based upon sender's address and will? want to add and display some additional information about each message in the UI (like a rating). ? If interested, please provide information about your email systems knowledge and capabilities and what client / filtering applications you have developed - including, in particular, applications for Yahoo mail. I may require that an NDA be signed at some point before or during the project and I hope to build a long-term development relationship with the right coder. Thanks and best regards, John