Plz help me guys...!!

Hello friends,
i've to make a final yr project... so i have decided to make a mail server in JAVA w/o using any mail server APIs.. do u people think its a good project to work on...??? my profs r saying that these softwares r already in the market.. so they want me to work on something different... n i have no idea of what shud i make.. i m totally confused.. right now i m just thinking of making a mail server... if u have any good projects then u r most welcome to tell me..
For mail server i read many RFCs of different protocols.. but i m not getting any good logical description on how to start with a mail server... n i m not et all interested in getting a already written code.. i really want to work on it..
i've this request that plzz show be a better way... i m really in need of it..
Thanking u in advance !!

Hi,
If u want ideas for good projects I can give u some :
1. A reverse proxy server
2. An online test software (like one used for GRE)
3. An IDE for JSP scripting

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