VBox.Adm

VBoxAdm is web frontend written for mailservers running with Postfix, Dovecot and a MySQL backend.

Mail-in-a-box

Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

Mailpile

Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.

NeutronMail

Self-hosted server for the ProtonMail client.

One

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Virtualmin

It includes numerous features not in the GPL version (like script installers, resellers, HTML editor, an improved UI, mobile access, spam and virus filtering).

django-cyradm

django-cyradm is a web interface to manage postfix controlling accounts, aliases and virtual…