I have a client that uses ECMail but it was hacked because it was insecure. (The password was stored in clear text and not hashed.)
What he is looking for is a complete solution which is capable of tracking the name, email, IP address, and date subscribed.
We looked at phplist but it doesn't have all the features. This new software has to be very stable and secure because it sends out thousands of emails a day (don't worry, it's not spam!) Any suggestions?