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VNCmail

VNCmail is the enterprise email of the suite — and deliberately more than a mailbox. It is a complete mail suite: email, calendar and contacts in one application, delivered on web, desktop and mobile, and backed by a mail server your organization runs itself.

The design goal is that a mail client is no longer the weakest link in a sovereign workplace. Mail content, attachments, address books and calendars all live in your perimeter, and the assistant that reads them follows your AI policy instead of sending the inbox to a public provider.

  • A complete suite, not just an inbox. Reading and writing mail, keeping the calendar and managing contacts happens in one app with one search.
  • Cross-platform. Web, installed desktop app and mobile, with the same mailbox and the same settings.
  • Open standards end to end. Mail is accessed over JMAP, contacts over CardDAV and vCard, calendars over CalDAV and iCalendar, filters as Sieve scripts. You are not locked into a proprietary sync protocol.
  • A sovereign AI assistant. Summaries, drafting and search run under your organization’s policy — local, private, or approved public.
  • Enterprise hygiene. SPF, DKIM and DMARC indicators, external-content blocking, S/MIME signing and encryption, two-factor authentication.
Capability What it gives you
Compose and reply Rich text with inline images and tables; reply, reply-all, forward.
Conversations Gmail-style threading, expanded inline, with a toggle.
Unified mailbox Inbox, Sent, Drafts, Junk, Archive and Trash in one view, with an optional cross-account mode.
Search Full-text search with a filter panel, search chips, wildcards and cross-mailbox queries.
Attachments Upload, preview and drag out; .eml parts open as nested messages.
Scheduled send and drafts Drafts auto-save; sending can be delayed.
Tags and folders Coloured, nestable tags and folders, with drag-and-drop assignment.
Filters A visual rule builder that writes standard Sieve scripts.
Templates Reusable messages with placeholder auto-fill.
Vacation responder Schedulable to a date range.
Signatures and identities Several sender identities, each with its own signature.
Capability What it gives you
Month, week, day, agenda Views with a mini-calendar and a task list.
Drag to schedule Move, create and resize events on a 15-minute grid.
Recurrence Edit or delete this occurrence, this and following, or all.
Invitations and RSVP Standard iMIP invitations with RSVP, also directly from a .ics attachment.
Shared calendars CalDAV discovery across accounts, coloured per viewer.
Subscriptions iCal / webcal feeds and a birthday calendar from your contacts.
Virtual locations Video-conference URLs as first-class event fields.
Tasks Due dates, priority and completion beside the calendar.
Capability What it gives you
Several address books With drag-and-drop between them and groups.
Standard sync CardDAV / vCard import and export that flags duplicates.
Trusted senders Kept in their own address book.
Autocomplete On To, Cc and Bcc.
  • S/MIME — manage certificates, then sign, encrypt, decrypt and verify.
  • Sender authentication — SPF, DKIM and DMARC indicators on every message.
  • External content — blocked until you allow it; trusted senders remembered.
  • Single sign-on — OAuth2/OIDC with PKCE, with an OAuth-only mode.
  • Two-factor authentication — TOTP.
  • Admin policy — control the unified mailbox and cross-account capability organization-wide; branding, themes and plugins are administered centrally.
  • Mobile and desktop — installable as an app, with web push for new mail.
  • An employee works from the unified mailbox, switches between a personal and a shared team inbox, and sees the team’s unread counts in the same view.
  • A team schedules a recurring meeting in the calendar, invites participants and books a room; a colleague RSVPs straight from the invitation in their mail.
  • An assistant summarizes a long thread and drafts a reply under the organization’s AI policy, without the mail leaving the perimeter.
  • An administrator enforces external-content blocking, S/MIME and organization-wide mailbox policy from one dashboard.
  • VNCgroupware bundles VNCmail (with its calendar) with VNCcontacts and VNCfiles.
  • The calendar and VNCcontacts are the scheduling and address-book parts; VNCmail embeds them.
  • VNCcontacts is the address book of record for external contacts; VNCmail reads contacts from it.
  • VNCfiles holds attachments and the briefcase.
  • VNClagoon AI and the product assistant provide the sovereign AI features.
  • VNCportal provides the single sign-in.
Role What they do
End user Mail, calendar, contacts, filters and signatures.
Team lead Manage shared and delegated mailboxes and calendars.
Administrator Provision the mail server, set policy, branding and plugins.

Mail, attachments, calendars and contacts are stored on your organization’s mail infrastructure. Access uses open standards (JMAP, CalDAV, CardDAV), so data can be moved without a proprietary migration. AI requests follow the organization’s policy and can be kept entirely local.

Applies to VNClagoon 2026.1 and later. Last reviewed on 19 October 2026.

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