AVINASH GADGE, Infrastructure Solutions

21Vianet - Office 365. Friend's if you are working on O365 and while configuring you see option for 21Vianet. Please don't select it as it stores your data in China Data Centre. As per China Govt. there data should be within country and that's why Microsoft is working with 21Vianet. https://blogs.office.com/2014/04/18/office-365-operated-by-21vianet-becomes-generally-available-in-china/

Hello Friends, I came across good tool IdFix which identifies errors such as duplicates and formatting problems in your directory (Active Directory). URL: https://support.office.com/en-us/article/Install-and-run-the-Office-365-IdFix-tool-f4bd2439-3e41-4169-99f6-3fabdfa326ac