What to know about Microsoft's outage and why it takes so long to restore email services

First reported by TechCrunch at Thu 1:03 PM · 8 outlets in all

1. PBS NewsHour1hWhat to know about Microsoft's outage and why it takes so long to restore email servicesUnlike modern web apps or authentication gatekeepers, email wasn't designed to fail fast, meaning to immediately halt when a problem arises.
2. Hacker News3hUS Radar Service Outage
3. Al Jazeera4hMicrosoft says services still returning amid widespread outageGovernments, businesses, individuals were disrupted globally as server failures stretch into second day.
4. New York Times(subscription required)7hMicrosoft’s Global Outage and Fixes: What We KnowThe company described “encouraging” progress on efforts to overcome a second day of disruptions to its email, messaging and other services.
5. Wired(subscription required)7hThe Microsoft Outage Is a Warning for the WorldCountless businesses, schools, hospitals, and governments have found out the hard way what it means to rely on a single company’s systems to get things done. And next time could be even worse.
6. BBC17hWhy is Microsoft's outage lasting so long and will emails be lost?Microsoft says it is continuing to restore services including Outlook and Teams following a global outage.
7. CNN20hMicrosoft reports email service is ‘approaching normal levels’ following widespread global outage
8. TechCrunch29hMicrosoft’s Outlook email hit by new outageMicrosoft hasn't yet given a cause for the outage, which is affecting Outlook email users.