Document collaboration services

Collabora Online

Self-hosted online document editing, open source

Open sourceOpen source
Visit website collaboraoffice.com

Collabora Online is an open source document collaboration service that runs on your own infrastructure. It provides browser based editors for text documents (Writer), spreadsheets (Calc), presentations (Impress) and vector graphics (Draw), and it is the engine behind cloud offerings such as Nextcloud Office.

It is listed here as self-hosted open source software, so it is not necessarily European: where it runs is entirely up to you. Installed on European servers it becomes a European alternative to Google Docs and Microsoft 365 for organisations that want collaborative editing without handing documents to a third party.

Data and operations

Infrastructure and email path

Verified operational dependencies, shown separately from ownership and from the service's core data hosting.

Incoming business email

Zoho Mail

Non-European provider
Observed
MX 10 mx.zoho.com · 20 mx2.zoho.com · 50 mx3.zoho.com

Why this matters

Published MX records route incoming business email through Zoho Mail. Correspondent details and message content can therefore enter this non-European provider's systems; MX does not reveal the configured storage region.

Authorised outbound email

Zoho Mail

Non-European provider
Observed
SPF zohomail.com

Why this matters

This domain authorises Zoho Mail to send email. If active, recipient details and message content can be processed by this non-European provider. SPF does not reveal its configured storage region.

Authorised outbound email

Collabora

Non-European provider
Observed
SPF _spf.collabora.co.uk

Why this matters

This domain authorises Collabora to send email. If active, recipient details and message content can be processed by this non-European provider. SPF does not reveal its configured storage region.

Public DNS records identify visible providers and routes, not every backend location or private data-region setting.

Infrastructure checked:

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