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Best European alternatives to Roundcube in 2026

We found 2 EU-built alternatives to Roundcube — GDPR-native, with verified data sovereignty and transparent rankings. No pay-to-win.

2 EU-built alternatives to Roundcube
Nextcloud Mail

Nextcloud Mail

Email Marketing
EU Based

Nextcloud Mail is an integrated email client for Nextcloud that lets users manage multiple email accounts directly from their Nextcloud instance. It supports IMAP and offers a clean interface with features like unified inbox, smart folders, and end-to-end encryption.

DE
Rainloop

Rainloop

Email Marketing
EU Based

RainLoop is a lightweight, self-hosted webmail client built on PHP. It requires no database, supports IMAP, and offers a clean modern interface accessible from any browser. Ideal for personal or small-team email server deployments.

EE

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