Change screenshot location – OSX Mojave

https://www.macobserver.com/tips/quick-tip/how-to-change-mojave-default-screenshot-location/

Check if onmicrosoft.com domain is available

https://account.windowsazure.com/organization?correlationId=9770ca98-c928-448e-bf57-eafe149cb17a

 

 

External sender warning message

https://www.securit360.com/blog/configure-warning-messages-office-365-emails-external-senders/