Alternatives to Nextcloud Mail
An IMAP webmail app that runs inside your own Nextcloud server. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Nextcloud Mail
An IMAP webmail app that runs inside your own Nextcloud server.
Replacements
Listings that take over the same core job as Nextcloud Mail.
Roundcube
A self-hosted, browser-based IMAP webmail client written in PHP.
Roundcube is a standalone PHP webmail for any IMAP server with LDAP address books and PGP support, without needing a Nextcloud installation.
SnappyMail
A lightweight self-hosted webmail client, forked from RainLoop and rebuilt for modern browsers.
SnappyMail is a lightweight AGPL-3.0 webmail forked from RainLoop that loads fast on mobile and runs on its own web server.
Cypht
Self-hosted open-source webmail that combines several email accounts and RSS feeds into one inbox.
Cypht combines several mail accounts and RSS feeds into one self-hosted web inbox, with IMAP, JMAP and Exchange EWS support.
Horde Groupware
A self-hosted open-source PHP suite with webmail, calendar, contacts, tasks and notes.
Horde Groupware is a PHP suite adding calendar, tasks, notes and ActiveSync sync alongside webmail, with an older codebase to maintain.
SOGo
An open-source groupware server with webmail, shared calendars and address books for organisations.
SOGo is a groupware server with webmail, shared calendars and ActiveSync, needing existing mail and directory servers to integrate with.
Similar software
Related functionality, not a direct replacement.
Dovecot
An open-source IMAP and POP3 server that stores mailboxes and serves them to mail clients.
Mailcow
Dockerized open-source mail server suite with web admin and webmail.
Mailu
A full-featured self-hosted mail server delivered as a set of Docker images.
Mox
An all-in-one open-source mail server for low-maintenance self-hosted email.
Thunderbird
Mozilla’s desktop mail client, with calendar, contacts and a unified inbox, funded by donations rather than ads.