Bestserv confirms all requests for mailing list subscriptions. This ensures that all subscriptions are to valid addresses and prevents malicious users from forging subscription requests. Bestserv has an automatic mechanism approval for moderated mailing lists. Bestserv can accept multiple moderator address from which to accept command requests. Users have the option of setting a digest-only list, or a list that only accepts single subscriptions.
Users can limit the size of a posting to a maximum limit, to prevent mailbombing.
Users can configure the mailing list to return personalized messages for users who send mail to the mailing list that aren't subscribed to the list, or the authentification message sent to users wishing to subscribe. A concurrent digest version of the list along with the regular single-message version. The ability to control list configuration via email, and to change the list information via email. Moderator commands to subscribe or unsubscribe users, or to run a digest. Also address which digests originate from.