ezmlm-idx is an addition and patch to ezmlm,
adding multi-message threaded archive retrieval,
digests, remote administration, message and
subscription moderation, subscriber-only
restrictions, message trailer, subject prefix,
subscriber name storage, customizable setup,
multi-language and MIME support, and more. In
addition, it has improved bounce handling,
case-insensitive subscriber address storage, and
support for distributed lists (main and sublist
are transparent to the subscriber). It can be
compiled with MySQL or PostgreSQL support.