If only one user reports having trouble receiving email, there might be a problem in their email account or their email app. Check whether there's a problem in Outlook or another email app Is something wrong with Outlook? Is the Microsoft 365 service down? Is there a problem in the mail flow or spam filter settings? Or is the problem caused by something that's outside your control, such as that the sender is on a global block list? Fortunately, Microsoft 365 provides powerful automated tools that can help you identify and fix a variety of problems. You might run through several troubleshooting scenarios in your mind. When users report that they aren't receiving email, it can be challenging to determine the cause.
