Support for Multiple Protocols
Email providers have multiple protocols. You may have IMAP, POP and Exchange accounts with your providers. Your client has to support all.
Easy to add Known Providers
You may have few emails accounts from various known providers such as: Gmail, Yahoo, Outlook, iCloud, Office365, AOL.
Or any Other Provider
You should be able to use also local providers such as: Web.de, Docomo, Orange, Sky, GMX, Zoho, Alice and 1&1.
Works for any device
Android, iPhone, iPad, tablets, phablet, Apple watch or wearable devices.