Server mail client setup

I need an expert in CENTOS that will be able to setup a client of mail on the the server i just installed. At this moment the admin that i work with did not succed to make it work [login to view URL] mails get to [login to view URL] is in no spam DB,domains are fresh 1 month old. Yahoo ,hotmail ,all major players are getting it to the bulk and i need it rethinked. I do not plan to let 3-4 user to get on the website so please if you know you can make it bid,if not don't waste anyones time. Ask me anything you want in advance and i ll try to help your work. Thanks. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Linux,centos