Using Classic Outlook on Windows for personal email, calendar, and contact management
Hi MuhammadAhmedBaig,
Office 365 has Exchange Online Protection as the email filter service. Furthermore, the Office 365 Advanced Threat Protection Service ensure customer by providing a deeper attachment, URL links scan service.
https://technet.microsoft.com/en-us/library/jj723137(v=exchg.150).aspx
Security and compliance are also advantages over other services. You can find more information here:
https://technet.microsoft.com/en-us/library/jj200706(v=exchg.150).aspx
Seldom has we heard DSS in Office 365. Could you give us a detailed example?
Thanks,
Brook