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Hello, thank you for reaching out to Microsoft Q&A.
- 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)?
- What exact error message does the sender receive when they try to email your account?
Please send a test email from one of your Microsoft accounts to the affected email address. If you receive a bounce-back error message, please share it with us here for reference. it would be better if you attach a screenshot of the error as well.