We have a current web-based CRM developed in C# and MS SQL. It's pretty rebust with user administration, dynamic forms and reporting etc. The application currently can send mail out and in fact, it has an e-mail campaign tool built into it. We are needing to build out a full scale E-MAIL application into the product that works and functions similar to gmail using "conversations", AJAX components, etc... It will be inside the current application which has a great deal of the user administration in place that will be need ed to create this tool. It really needs to be the e-mail functionality itself that ties seamlessly into the current application as another module inside the program. Please only bid on the project if you have built an e-mail application before and have IMAP nad POP application experience.