Anonymous remailer: Exim CPanel configuration

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I need a CPanel exim configuration to implement a craigslist like anonymous remailer.
This means that users on my site will be able to exchange em-ails from their personal em-ail account to an em-ail of the sort .
Both the from address and the to address will be rewritten to avoid revealing the true em-ail addresses.

This is the basic feature and it's already implemented. I need your help with these additional requirements:
1) Bounce an em-ail that is not from a know user address unless it's to site admin
2) Log every user to user em-ail in a way that can easily be accessible from php
3) Run a simple db query of who sent an em-ail to whom on each user to user em-ail sent
4) Add a custom em-ail header to each user to user em-ail
5) Limit the number of em-ails per sender per day
6) Limit the number of recipients for a user to user em-ails

My site is: CENTOS 6.3 x86_64 kvm – server1 WHM 11.36.0 (build 14)

Skills required:
Linux, MySQL, PHP, System Admin, Web Hosting
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