Have you stopped receiving emails in your Outlook inbox? You may also notice that suddenly emails aren’t sending or syncing. It looks like an issue in Microsoft 365, but it’s not necessarily the main reason. This issue might also stem from authentication issues, a full storage mailbox, or an overwritten DNS record. Here are the easier ways to check whether the problem is on your device or with Microsoft itself. Open an incognito browser and visit outlook.office.com. If mail l