Outlook is still one of the email systems most used in the world, and its mobile application allows you to keep up to date on the review of your mail.
Even though Outlook is no longer the Messenger Service with the largest number of users, it is still the most active as its users tend to check it more frequently.
The Outlook application allows you to receive your emails directly to your mobile device, of course as long as you have an internet connection. You can also send your messages and even attach files to it. Once you have received an email, it will be stored on your device for some time so you can read it later even if you do not have an internet connection.
La Outlook app It's free and you can download it from Google Play.