Piler

Piler is an open source email archiving solution designed for organizations that need to manage large volumes of email while meeting regulatory requirements. The platform addresses the core challenges of email management: compliance obligations, excessive storage costs, and the need for rapid email retrieval across organizational archives. The system handles millions of emails through optimized storage and indexing, offering full-text search capabilities to locate messages within seconds. Organizations can configure retention policies and tamper-evident archiving to satisfy regulatory requirements, while the efficient storage model can reduce email storage costs by up to 80 percent. As an open source project, Piler is available for self-hosted deployment.