Αποστολή, λήψη και οργάνωση ηλεκτρονικού ταχυδρομείου στο Outlook.com
Hello,
Thank you for reaching out to the Microsoft Community and I'll be glad to assist you today.
- May I please know the exact error message you receive when the sender tries to send emails to your address?
To find out, you can use an alternate email account and send a test email to the Hotmail.com address. If the email isn't delivered, check the bounce-back message to know the reason for the failed delivery.
Meanwhile, please check if you have enough storage space to send or receive emails.
For a Microsoft account (without any subscription), you get 5GB of OneDrive Cloud storage and 15GB of Outlook email storage.
If you exceed any one of the storage limits, you won't be able to send or receive emails.
• To check your storage, go to https://outlook.live.com/ and sign in with your Microsoft account.
• Go to Settings > Accounts > Storage.
• Expand Microsoft cloud and email storage as shown in the screenshot.
• Ensure you have enough space to send or receive emails.
Also see "Can't send or receive emails" article for reference.
https://support.microsoft.com/help/d39e3341-8d7...
Let me know if you still need more help.
Best regards,
Gunasekar N