Webmail
Nextcloud Mail privacy rating
Open-source mail app for self-hosted Nextcloud servers that adds webmail for any IMAP account, with S/MIME, Mailvelope support and integration with Nextcloud contacts and calendar.
Summary
Nextcloud Mail scores 84 out of 100 (grade B) on the webmail criteria. It meets 7 of 9 criteria: open source, no trackers or telemetry, no ads or data sales, connects directly, blocks remote content, works with any provider and self-hostable. It partly meets OpenPGP support. It does not meet independent audit. It is based in Germany: Fourteen Eyes member; EU member (GDPR).
Score 84 out of 100. How scoring works
Criteria
- Yes
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Yes
No trackers or telemetry Weight 3 of 3
Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
No telemetry or analytics in the source code, and the app store page loads no third-party trackers.
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Yes
No ads or data sales Weight 2 of 3
Is the product funded without advertising, ad targeting or selling user data?
Free software funded by Nextcloud enterprise subscriptions. No ads.
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No
Independent audit Weight 2 of 3
Has an independent security or privacy audit been published within the last three years?
No independent audit of the Mail app is published.
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Partial
OpenPGP support Weight 2 of 3
Can the app encrypt and sign mail with OpenPGP, built in or through an official add-on?
OpenPGP works through the Mailvelope browser extension. S/MIME is built in.
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Yes
Connects directly Weight 3 of 3
Does the app connect directly to your mail server, without passing mail or passwords through the vendor's servers?
Self-hosted. Connects from the Nextcloud server directly to the IMAP and SMTP servers, with no vendor service involved.
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Yes
Blocks remote content Weight 2 of 3
Are remote images and tracking pixels blocked by default?
External images are proxied and hidden until the user chooses to show them, and tracking pixels are blocked.
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Yes
Works with any provider Weight 1 of 3
Does the app work with any standard IMAP and SMTP provider?
Works with any IMAP and SMTP server.
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Yes
Self-hostable Weight 1 of 3
Can the webmail be installed on your own server?
Installed as an app on a self-hosted Nextcloud server, with official administrator documentation.