ElasticInbox is open source, distributed, reliable, scalable email store.

The goal of this project is to provide highly available email store without a single point of failure which can run on commodity hardware and scale linearly. ElasticInbox can easily scale to millions of mailboxes, with hundreds of thousands messages in each mailbox.

To achieve this, ElasticInbox relies on proven technologies:

  • Apache Cassandra for metadata
  • Cloud object (blob) store for messages. ElasticInbox supports all major private and public object stores like AWS S3, Azure and OpenStack Object Store through Jclouds library.

Getting Started




ElasticInbox is free software and distributed under Modified BSD License.