VNCmail
Sovereign enterprise mail: a complete, multi-platform suite with mail, calendar, contacts and files, no lock-in, and a sovereign AI assistant.
Sovereign enterprise mail, complete and multi-platform
VNCmail is a complete, modern mail suite that you host yourself: mail, calendar, contacts and files in one login, on web, desktop and mobile. It speaks open standards so there is no lock-in, and it adds a sovereign AI assistant that runs on your own infrastructure.
- ✓Unified mailbox with conversation threading and three layouts
- ✓Calendar, contacts and files built in
- ✓Filters and templates with a visual rule builder and a vacation responder
- ✓S/MIME signing and encryption, with SPF, DKIM and DMARC indicators
- ✓Single sign-on (OIDC) with optional TOTP two-factor
- ✓Open standards: JMAP, IMAP, SMTP, Sieve, CalDAV, CardDAV, WebDAV
AI assistant
Draft and summarise mail and ask questions over your own mailbox. The models run on your own infrastructure and access is governed by admins.
Conversation view
Threaded conversations with three layouts (split three-pane, focused list, bottom reading pane), resizable columns and full keyboard navigation.
Calendar, built in
Month, week, day and agenda views with drag to reschedule or create, recurring events, invitations with RSVP, shared calendars, and tasks with due dates.
Contacts, built in
Multiple address books with drag-and-drop, groups, vCard import and export with duplicate flagging, and autocomplete on To, Cc and Bcc.
Files, built in
A real folder tree over your own file storage, WebDAV upload of whole folders, previews for images, text, audio and video, and internal sharing with read, read-write and manager roles.
Rules and filters
Server-side rules from a visual builder or a raw editor with validation, a schedulable vacation responder, and reusable templates with placeholder auto-fill.
S/MIME security
Manage certificates, sign, encrypt, decrypt and verify, with keys isolated per account. SPF, DKIM and DMARC appear as indicators on messages.
Offline access
The desktop client keeps a local, encrypted offline replica of your mail. The mobile app reads, writes and sends offline, reconciling safely on reconnect.
Everywhere you work
The same product on the web, on desktop, and on iOS and Android, each a finished client.
Installable web app with push
Use VNCmail as an installable web app in the browser, with web push for new mail.
Plugins and themes
A plugin system with schema-driven configuration and hooks, themes as bundles, and an extension marketplace, plus a bundled video-conferencing plugin for the calendar.
Open standards, zero lock-in
The client speaks the modern JMAP standard, with IMAP and SMTP on the server: a documented path in and out. You own your data and your protocols.
Sovereign AI assistant
Drafting, summarising and mailbox questions with models that run on your own infrastructure, not in a third-party cloud.
The complete suite in one login
Mail, calendar, contacts and files together, on web, desktop and mobile, self-hosted on your infrastructure.
Contextual search
Full-text search with a filter panel, search chips, wildcards and cross-mailbox queries, so you find mail by what it says.
Web app
Installable in the browser as a progressive web app, with web push for new mail.
Desktop client
A native desktop app with a local, encrypted offline replica of your mail, so you can read mail while the network is down.
Mobile app (iOS and Android)
Full mail, calendar and contacts, multiple accounts including shared and delegated mailboxes, offline read, write and send, and sovereign push notifications with no third-party push service.
Clients: web, desktop, iOS, Android · Protocols: JMAP, IMAP, SMTP, Sieve, CalDAV, CardDAV, WebDAV · Security: S/MIME, SPF/DKIM/DMARC, OIDC, TOTP
Integrated across the suite · single sign-on via VNCdirectory
VNCdirectory
Identity, single sign-on (OIDC) and org structure for every mailbox and client.
VNCchat
Missed-mention digests from VNCchat arrive in your inbox.
VNCtask
Turn an email into a tracked task without leaving your inbox.
VNCfiles
Attachments and shared files are governed by the suite file core, with its permissions and audit trail.
Document editing
Open and edit documents attached to mail without leaving the suite.
Video conferencing
A bundled video-conferencing plugin adds meeting links to calendar invitations.