Deploy Usesend on your own server.

Stalwart is a modern, all-in-one mail and collaboration server written in Rust for security and performance. It bundles SMTP, IMAP, JMAP, POP3, CalDAV, CardDAV, and WebDAV into a single binary with a unified configuration. Features include a built-in spam and phishing filter with LLM-driven analysis, DMARC/DKIM/SPF/ARC authentication, encryption at rest with S/MIME or OpenPGP, automatic TLS via ACME, full-text search in 17 languages, Sieve scripting, and a web-based admin dashboard. It supports pluggable storage backends (RocksDB, FoundationDB, PostgreSQL, MySQL, SQLite, S3, Redis) and scales from a single instance to thousands of nodes with built-in clustering, load balancing, and fault tolerance.

Dittofeed is an advanced, self-hosted customer engagement platform designed to streamline and enhance your marketing automation workflows. It empowers businesses with real-time insights, robust data-driven personalization, and multi-channel communication tools, including email, SMS, and push notifications. Dittofeed offers a user-friendly interface, powerful API integrations, and extensive customization options, making it ideal for organizations of all sizes. By providing a self-hosted solution, Dittofeed ensures data privacy and compliance while giving you full control over your infrastructure and customer data.

PortNote is a self-hosted port tracking application that helps you keep track of used ports across your servers and VMs. Stop juggling spreadsheets and guessing which service uses which port — PortNote gives you a clear, organized view of your entire port landscape. Add your servers via a sleek web interface, assign and document port usage across all systems, and avoid conflicts before they happen.