Dove Mail

This application gives you to login for all your other accounts.

The following mails are supported

Gmail, Yahoo, Outlook, AOL, fpt, iCloud, Google Apps, Hotmail, MSN, Live, Yandex, ymail, iCloud, Mail.ru, GMX, mail.com, Hushmail, Zoho, Web.de, QIP, Rambler...
IMAP & POP3 Accounts
Exchange (via IMAP)

Features

• Rich text editing
• Unified Inbox
• Display contact pictures
• Threaded message view
• Split-screen view
• Email signatures
• BCC to self
• Rich notifications (mark as read, reply, or delete directly from notifications)
• Encrypt and sign messages using the OpenPGP standard (when APG is installed)
• Settings import/export
• Keyboard shortcuts
• Lots of configuration options