Few days back a user raised a concern of frequent account lock out in our environment. When I checked the user, I found an old device for the user which I blocked and removed. The user continued to face the problem. Then I disabled the activesync feature for the user, but still the some old device is hitting IIS for the user and the account is getting locked. The problem is that there is no trace for the device except "Android/4.2.2-EAS-1.3" for the user and also, the same device is not present for the in exchange. I have tried to detect the device using MFCMapi, but no such android device is present for the user. Is there any way to detect and delete this device which is causing the lockout ? And also, I want to know how a mobile device behaves to IIS if we disable the activesync feature for a user ?
Any suggestion will be helpful for me. Thanks.