Sending, receiving, and organizing email in Outlook.com
Hello, thank you for reaching out to Microsoft Q&A.
May I please know the exact error message you receive when you sign in with your Microsoft account on Outlook?
Is the affected email address for a personal Microsoft account (e.g., ending in @outlook.com, @hotmail.com, @gmail.com that you created for services like Skype or Xbox) or a work/school account provided by an organization (e.g., ******@company.com)?
Are you able to sign in to your account normally here?