ulaknode - Your email. Your server. Your rules.
ulaknode is a free, self-hosted business email server for Linux, packaged as a single Docker deployment. Run it on your own infrastructure, keep control of your data, and get optional commercial support from itefix.net when you need help with setup, migration, maintenance, or troubleshooting.

What’s included
ulaknode bundles a complete production-ready mail stack in a single deployment:
Postfix - SMTP mail transfer for sending and receiving email
Dovecot - IMAP mailbox access for desktop and mobile clients
Rspamd - Spam filtering, greylisting, and DKIM/DMARC/ARC support
ClamAV - Antivirus scanning for incoming mail
Open-source and self-hosted
ulaknode is designed for organisations that want to run their own mail infrastructure without building a complete mail stack from scratch.
- Deploy it on your own VPS, dedicated server, private cloud, or on-premises hardware
- Keep your email data under your control
- Avoid per-user and per-mailbox subscription costs
- Use it freely under a BSD-style license
Free software, commercial support available
ulaknode is available under a permissive BSD-style license, so you can deploy and use it freely on your own infrastructure. There are no per-user, per-mailbox, or per-domain license fees.
For organisations that want expert help, commercial support is available for purchase from itefix.net. Support plans start at $549 per year, with discounts for two-year and three-year terms, as well as volume pricing for multiple installations.
Commercial support can include deployment guidance, migration help, upgrades, troubleshooting, and deliverability tuning.