Email & Communication

Email and communication systems sit at the heart of every company, and handing them to a third-party cloud provider means handing over some of your most sensitive data. Every internal discussion, every client exchange, every attachment: all of it lives on someone else’s infrastructure, governed by someone else’s terms. Sovereign communication means taking that control back.

We advise on the architecture and tooling for self-hosted communication: Postfix and Dovecot for email, Matrix for real-time messaging, and Asterisk or similar platforms for telephony and video conferencing. These are mature, battle-tested projects with active communities and well-documented deployment patterns. They are not experimental; they are the same technologies that large institutions and governments rely on.

Getting email right requires particular care. Deliverability depends on proper DNS configuration (SPF, DKIM, DMARC), reputation management, and spam filtering. We help you navigate these details so your self-hosted email actually works reliably in the real world: messages arrive where they should, and your domain maintains a strong sender reputation.

For messaging and collaboration, Matrix offers end-to-end encryption, federation between organisations, and bridges to other platforms during transition periods. It is a credible replacement for Slack or Microsoft Teams, with the added benefit of full data sovereignty. We help you evaluate whether Matrix fits your team’s communication patterns and how to structure it for your organisation.

The goal is a communication stack that your company owns completely: the servers, the data, and the rules. No vendor can change your terms, read your messages, or shut off access.