Nextcloud Mail
Webmail client app for Nextcloud (IMAP/SMTP)
1k stars 335 forks last commit first released AGPL-3.0
Actively maintained
Last commit 28 Jul 2026.
Nextcloud Mail is the official webmail application for Nextcloud, providing a modern browser-based email client that connects to standard IMAP/SMTP mailboxes. It integrates tightly with other Nextcloud apps to unify email with your personal and team workflows.
Key Features
- Connect multiple IMAP accounts with a unified inbox
- Send mail via SMTP and manage folders/mailboxes (create, rename, delete, subfolders)
- Conversation/thread view for grouped messages
- Integration with Nextcloud apps such as Contacts, Calendar, Files, and Tasks
- Message composition with rich-text editor support
- Optional encryption features including S/MIME support; can also work with browser-based encryption extensions
Use Cases
- Use Nextcloud as a centralized webmail client for personal and work accounts
- Manage email alongside calendars, contacts, files, and tasks in one interface
- Provide a consistent webmail experience for organizations using existing IMAP/SMTP servers
Nextcloud Mail is a strong choice when you want a capable webmail client inside the Nextcloud ecosystem while continuing to use your existing mail server infrastructure.
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