Listserv screams on today's hardware. They're also among the few services that offer guaranteed, timely delivery of critical documents such as stock newsletters. You can pay L-Soft to administer everything, but chances are you'll want to do at least some management yourself. The management page, for example, does not have a Help button, but online documentation is available. The GUI is really a command generator that creates text commands and sends them to Listserv's underlying interface.
Users can subscribe, unsubscribe, and search archives through an optional Web interface.
Autoresponders, subscription confirmation, bounce handling, and digests are all part of the default configuration of a ListPlex account. Support for demographic data is available at extra cost via a back-end database. Listserv doesn't provide a graphical interface that lets you compose a questionnaire, however. Ultimately, ListPlex is best for large lists and for those where guaranteed timely delivery is necessary. Find out how.