Google rolled out new security features for G Suite, its collection of enterprise, cloud computing, productivity, productivity tools. These features have been built to detect and alert users of emails carrying potential malware and emails that are part of spear-phishing attempts. Google will start flagging emails carrying encrypted files, scripting files, emails containing shortened URLs, emails that appear to come from spoofed domains or using spoofed sender names. Google plans to enable two of these features by default for all G Suite customers on April 4.
Source: https://www.bleepingcomputer.com/news/google/google-deploys-new-anti-phishing-and-malware-detection-features-for-g-suite-users/