Email - Edison Mail is described as 'Email by Edison (formerly Email by EasilyDo) is a brand new, elegantly designed, universal mail app to manage unlimited mail accounts from different providers including Gmail, Yahoo Mail, AOL Mail, Hotmail, Outlook, Exchange, IMAP, Alto, iCloud and more' and is an app in the Office & Productivity category. There are more than 10 alternatives to Email - Edison Mail for a variety of platforms, including Android Tablet, Android, iPhone, Mac and iPad. The best alternative is K-9 Mail, which is both free and Open Source. Other great apps like Email - Edison Mail are FairEmail (Freemium, Open Source), Spark (Freemium), BlueMail (Free Personal) and TypeApp (Free Personal).
K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more.
FairEmail is a privacy-focused email client with a setup wizard that helpfully walks you through the steps to use it with any email provider. There are many privacy settings including encryption via OpenPGP and S/MIME and reformatted emails to avoid phishing.
TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push notifications while enabling personalization across multiple email accounts.
Librem Mail – end-to-end encrypted email used by nearly everybody already * Email client with support for IMAP and POP3 * Encrypt and sign your emails with OpenKeychain * Multiple accounts * Free and open-source software