Kurrier

Self-hosted, open-source workspace unifying email, calendars, contacts, and file storage in one UI.

Webfree

Kurrier is a self-hosted, open-source workspace that combines email, calendars, and contacts in one web interface, connecting to IMAP/SMTP providers and syncing via CalDAV and CardDAV. It also includes built-in WebDAV/S3 file storage and supports managing multiple identities and domains. It's aimed at people who want to self-host their communication stack rather than depend on a third-party provider.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of Kurrier - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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