AquaMail is an Internet and Exchange messaging application for Android 4.0.3 and later.
Exchange accounts (EWS) provide access to the server contacts ( personal , global , with research), and Calendar synchronization (since version 1.5.5 ) . AquaMail recognizes hosted accounts in Office 365 and Exchange Online.
Works well with other messaging applications that you would be using to access the boxes and IMAP EWS receptions.
Slip ( swipe ) in the message list (actions) and a message to the other.
Ability to save the attachments as files .
Automatic messages resizing (like Gmail) .
Editing rich text formatting when composing messages (including embedded images, links , colors, including the signature).
For More Info Google Play