I am using tridion 2011, and I have to add one newsletter subscription button on a website. There will be one text box along with a button. User will fill in the email id in the textbox given and click on the subscribe button; with this he will be subscribed to the newsletter and on specific time each user clicked on subscribe button will be sent out the newsletter automatically.
I hope I made the requirement clear; I know that on click of the button I have to get the email id registered on main DB by creating a contact; and on regular intervals the email will be sent to all contacts.
I don't now how to create contact in code on subscribe click; and how can I configure the newsletter and its automatic delivery to all contacts
Please help me.