Microsoft is working on Office 365 Advanced Threat Protection (ATP) users with more information on the route incoming emails take while going through the filtering stack before reaching their inbox. Microsoft wants to roll out these Office 365 updates during next month and to make them generally available to all Office 365 environments. Microsoft is also planning to improve the Office 365 Message Encryption service to decrease the possibility that emails with one-time passcodes (OTPs) required to read encrypted messages are labeled as spam by mail servers.
Source: https://www.bleepingcomputer.com/news/security/office-365-to-offer-more-info-on-how-it-protects-your-email/