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sending email to my college keeps saying that the sender is wrong and I can't send emails or receive them.

Anonymous
2025-06-19T20:10:19+00:00

I went into my outlook app and I got notified this when I tried to email you:

"This message couldn't be delivered because the sending email address was not recognized as a valid sender. The most common reason for this error is that the email address is, or was, suspected of sending spam. Contact the organization's email admin for help and give them this error message”

I wanted to know If you knew how I can fix this problem.

Outlook | MacOS | New Outlook for Mac | For education

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2025-06-19T20:56:57+00:00

    Hello Victoria Zito, 

    Thank you for reaching out to Microsoft Community. We're happy to support you with your concern.  

    • Have you double check if you're using a personal email or a college/university email when sending the email?
    • Can you log in to your email account and send an email successfully via the web version of Outlook?
    • Are you able to send emails to anyone else, or does every recipient bounce back?
    • Have you tried sending emails from other devices? Is this error happening on just one device, or all?

    We need to collect this information to narrow down the situation and provide the most accurate solution to your problem.  

    We appreciate your time and look forward to resolving this for you. 

    Best Regards,  

    Hendrix-C – MSFT | Microsoft Community Support

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  2. Anonymous
    2025-06-19T21:04:54+00:00

    This happens on all my devices with the same thing form Microsoft themselves

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  3. Anonymous
    2025-06-19T21:29:54+00:00

    Hi Victoria,

    Thank you for your response.

    We've sent you a private message with a related-PII question. Please share with us the details via private message so we can take a closer look and keep track with the status of your request to assist you further.  

    Here are the steps to open View Private Messages:   

    To view private email options, sign in to Microsoft Community> use the email account that posted this thread information to Microsoft Community> > click Profile in the upper-right corner, and then select My Profile.   

    We appreciate your time and look forward to resolving this for you. 

    Best Regards,  

    Hendrix-C – MSFT | Microsoft Community Support Specialist

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