If AO.L. Mail not working on android, check out simple troubleshooting steps:
Check whether the Antivirus of your Android is causing issue or not.
Make sure about any security settings on your device are not disapproving the AO.L. Mail to work.
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The Note 7 would be noticed industry wide as the device of the year if not for the unfortunate exploding batteries. Samsung took the high ground and decided to replace every Note 7 device that was sold. They could have taken care of all of this on a case by case basis and saved $1Billion. Now...