EMAIL ..Webmail Horde or Round Cube

Horde Groupware Webmail

Both Webmails Respond to the Screen Size, phone, tablet, laptop, computer.

Horde Webmail

...an enterprise ready, browser based communication suite. Users can read, send and organize email messages and manage and share calendars, contacts, tasks, notes, files, and bookmarks with the standards compliant components from the Horde Project.

Roundcube Webmail

...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.

NOTE: All emails for a specific domain name must use the same webmail.

Font Size - Enlarge the font on browser:
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Mac: Press ⌘ and +
Chrome OS: Press Ctrl and +