Roundcube is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an email client, including MIME support, address book, folder manipulation, message searching and spell checking.
Provides tools to list folders, list, search, and read messages (and mark them read/unread) in the IMAP mailbox whose mail is currently accessed through Roundcube webmail, connecting directly to the underlying IMAP server.
Exposes standard IMAP email accounts as tools so a chat client can list folders and recent messages, search by text across one or all configured accounts, read full message bodies, and mark messages read or unread. Credentials are supplied securely through environment variables, and the server never deletes, moves, or sends mail.