Mailing List Requirements

Required

1. Embeddable Signup box that can be embedded in any site via HTML - so that capture of emails is very easy
2. Allows users to unsubscribe themselves, via a link at the end of an email.
3. Infinitely scalable, and immediately usable with 100,000 users
4. Well documented and well-supported software, with good potential of long life (decades into the future)
5. An OSE-specific instructional is available for managing the list
6. Allows unlimited sending of messages
7. Once a person signs up themselves, email spam filters do not catch emails
8. Allows a backup dump of all subscribers
9. Allows plain text
10. One way list

Optional

1. Easy interface for managing message composition, preferably with a standard template for emails
2. Allows HTML embed in email

For Discussion

1. Removes users automatically if mail address fails permanently (no longer a valid email)