NodeMailer

NodeMailer is a server-side application that provides mailing list services.

Features

User Management: Keeps track of users and their emails, both internally and over LDAP.
Mailing Lists: Maintain an infinite number of mailing lists.
Reply Chains: Keep track of all emails that are replies to a single original email.
Database Free: All data is stored in the file system and kept in memory, without relying on databases.