Great plugin, and even better support!

I’ve been using this plugin for about six months now, to replace an traditional listserv for an academic organization with a membership of a couple hundred. It works reliably and consistently and is surprisingly customizable considering the challenges of making a listserv work through WordPress. The developer is incredibly responsive, both in making updates and adjustments when it’s called for, and in explaining the technical limitations when a particular feature just isn’t possible.

I wrote a couple code snippets to integrate the listserv with our membership plugin, which means members are automatically added when the join and deleted when their membership expires. We would have never been able to integrate things that seamlessly with something like Google Groups.