Configuring preferences and options in Outlook.com
I want to let you know about the possibility to request disabling the ATP (Safelink) service via Outlook.com in-product support: https://answers.microsoft.com/en-us/outlook_com/forum/oemail-osend/atp-safe-links-policies-somehow-applied-to-hotmail/c76d4a29-e7a0-47a8-b99c-73f548b72f72