The ATP Safe Links feature is part of Office 365 Advanced Threat Protection.

This feature is default included in: 

  • Office 365 Enterprise E5
     

If your organization is using another Office 365 Enterprise subscription, Office 365 Advanced Threat Protection can be purchased as an Add-on in Customer Portal (Store > Buy Additional Resources)

At the bottom of the this page you find a full list of the Office subscriptions where you can buy this Add-on: https://products.office.com/nl-be/exchange/online-email-threat-protection#howToBuy

It's not possible to buy this Add-on with these subscriptions:

  • Enterprise Mobility + Security E5
     

More information about Safe Links: