Jamm

If you're looking for an administration tool for mail servers that store virtual user information in LDAP, Jamm could be the web application you've been searching for. Compatible with servers such as Postfix and Courier-IMAP, Jamm is essentially an application-specific LDAP editor, designed to manage virtual email account information stored in LDAP. It's important to note that Jamm doesn't manage mail server specific configuration files, making it highly portable to any server that supports LDAP, be it POP, SMTP or IMAP.

However, there are some administration needs that Jamm can't take care of, such as cleaning up disk space of deleted accounts. In terms of compatibility, Jamm requires Java JRE 1.3.x or 1.4.x, a servlet 2.3 / JSP 1.2 compliant servlet container and webserver, as well as an LDAP server and an SMTP, IMAP, and/or POP server with LDAP support.

In summary, if you're looking for a software tool with a streamlined focus on managing virtual email account information stored in LDAP systems, Jamm might be worth considering. Its compatibility with various server types and ease of use make it a promising solution for organizations managing their email and LDAP systems.