I would like to allow a user to enter his/her Email Address if they are interested in signing up for a Newsletter on my website. But I also want them to be able to "Unsubscribe" me if they choose to.
Below are the requirements that I need:
- Collect/View/Modify collected Emails
- Ability to email Newsletter to everyone who signs up (Mass Email)
- Give user the ability to "Unsubscribe" from the Newsletter if they choose to
Is there an online service that I can use and implement that into my website? If so, who? If there are free services out there then that would be better as I'm starting out from nothing.