Bulk Mailer Module in PHP/MySQL

Our site has a bulk mail module made, that creates mail campaigns, sets time schedules, archives result etc. We need to add in some functionality : 1. See if messages are being sent as HTML ( with images) properly. 2. Disable those email addresses from the database, which have bounced back Requirement is urgent, so respond if you have experimented enough with the mail() function and can also track the mail bounces.