ERA CommunicationsSovereign enterprise communications

Sovereign enterprise communications — email, calendar, chat, and video meetings within the customer perimeter. Integrated native stack (Rust + Go). Outlook and mobile parity via server-side Autodiscover, EWS, CalDAV, CardDAV and ActiveSync — compatibility on the server, no desktop plugins.

Gov-ready protocol stack

Autodiscover + EWS — Outlook connects via standard Autodiscover; mail, calendar, contacts, notes/tasks (documented subset).
CalDAV + CardDAV — open standards for calendar and contacts.
ActiveSync subset — mobile mail, calendar, and contacts sync (iOS/Android).
SMTP/IMAP + TLS — Thunderbird and standard clients.
Documented protocol subset — server façade only; no proprietary desktop connector.

Editions

ERA Mail Server

Integrated mail backend: EWS, CalDAV, CardDAV, ActiveSync; Autodiscover.

ERA Mail Client

Webmail + OIDC; works with server-side compatibility layer.

ERA Conference

On-prem video meetings (LiveKit), 1000+ participants.

ERA Chat

Enterprise messenger; integration with mail and Conference.

ERA Comms AI

Air-Gap LLM: mail security audit, correspondence summaries.

ERA Mail Connect

Hybrid tier: webmail + BFF to external IMAP/JMAP/EWS.

Killer features

Target scale of 60,000+ concurrent users without degradation.
Air-Gap AI — local LLM for mail; data never leaves the perimeter.
Zero-Touch migration — Autodiscover for Outlook and mobile clients.
Zero hardware lock-in — x86 and PowerPC builds.
DevSecOps — Distroless containers; audit in ClickHouse; integration with ERA Control.

Technical stack

Core: integrated Rust mail + Go protocol adapters (native ERA implementation).
Video conferencing: LiveKit on-prem.
Shared SaaS: identity, tenant, admin portal (ADR-0024).

Documents, spreadsheets, and presentations are in the separate ERA Office product, not in Communications.

ERA Communications