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@nc-connector

nc-connector

Open-source add-ons that bring Nextcloud features into email clients — starting with Thunderbird and Outlook.

NC Connector header

Nextcloud workflows directly inside mail and calendar clients.
Share files, create Talk meetings, automate attachment handling, and optionally manage policies centrally with the backend.

Thunderbird Outlook Classic Server Backend Nextcloud App Store


Projects

Project Purpose Status Links
NC Connector for Thunderbird Add-on for sharing and Talk workflows in Thunderbird ESR Active Repo · ATN · Releases
NC Connector for Outlook Classic COM Add-in for sharing, Talk workflows, and IFB/Free-Busy integration Active Repo · Releases
NC Connector Server Backend Optional Nextcloud backend for central policy and seat management Active Repo · App Store

Operating modes

Mode Account on nc-connector.de Seats Billing Typical use
Add-ons without backend No Not required None Direct start in mail client
Backend Community No 1 free seat None Small setups with central backend
Backend Pro Yes 5+ seats Subscription Productive team operation

One seat maps to one Nextcloud user and can be reassigned at any time.


Core capabilities

  • Guided file sharing workflow directly in the compose window
  • Attachment automation rules and thresholds
  • Talk room creation from calendar events
  • Security defaults such as passwords, expirations, lobby, and moderation
  • Structured debug logs for support and troubleshooting
  • Optional backend control for central policies, seat assignment, and templates

Requirements

  • Thunderbird ESR (Thunderbird add-on)
  • Outlook Classic on Windows (COM Add-in)
  • Nextcloud (for backend mode)
  • NC Connector add-on version >= 3.0.0 for backend policy control

Support

  • Please open issues in the relevant repository:
    • Thunderbird topics: NC_Connector_for_Thunderbird
    • Outlook topics: NC_Connector_for_Outlook
    • Backend topics: Server_Backend
  • Include logs and reproduction steps where possible.

Contributing

Contributions are welcome:

  • Code, testing, translations, and documentation
  • UX/text improvements
  • Policy and backend workflow ideas

If unsure where to start, open an issue with your use case.


If you’d like to support the project, we’d really appreciate:

If NC Connector helps your team and you want to support development:

👉 PayPal

Thanks a lot for your support.


Disclaimer

This is a community project and not an official product of Nextcloud GmbH.
“Thunderbird” and “Outlook” are trademarks of their respective owners.

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  1. NC_Connector_for_Outlook NC_Connector_for_Outlook Public

    Nextcloud Talk meetings and secure Nextcloud sharing links directly from Outlook

    C# 10 2

  2. NC_Connector_for_Thunderbird NC_Connector_for_Thunderbird Public

    Nextcloud Talk meetings, secure Nextcloud sharing, and smart attachment automation directly from Thunderbird.

    JavaScript 32 2

  3. Server_Backend Server_Backend Public

    Central backend capabilities for NC Connector

    JavaScript

Repositories

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