Birthday Script

Need a simple Birthday Email Script. One that emails a person on there birthday. I want to be able to add my customers or friends information into the system (ie names, address, phone, and email) along with a date and on that date the system will send a personal birthday message to that person. Some entries will use the same email for everyone in that family (husband and wife may use the same email but will get emailed separately on "their birthday" must not conflict) Program details * must be secure (login page and customer data encryption incase of hackers) * search (first, last, email, or phone) * import of info * export of info * ability to change signature by selecting friend or customer * ability to control time of day message sent (want messages to appear personal - must go out during waking hours not the middle of the night) * control over speed of emails sent (i.e. 1 every 5 seconds - if a date ends up with 1000 people dont want ISP to block a bunch of messages being blasted all at once. * admin interface ( control over email sent, reply email address, signature file, overall control over system options) * NO code encryption ( I want ability to modify or change in any way I see fit) * I will retain "full rights" to code and program with no restrictions. (You can also reuse the code any way you see fit)