Hi, I'm John! I will help you with this.
The Learn Q&A is public, and we can only provide information.
After purchasing additional storage (or freeing space), it can take up to 24 to 48 hours for everything to fully update across your account. I’d recommend waiting that time and then trying again to send your emails.
If the issue persists after 48 hours, please contact Microsoft support for further assistance:
- Here is the link: https://support.microsoft.com/home/contact
- Type this keyword and press Enter: Contact Support.
- At the bottom, click "Sign in to contact support" and sign in with your Personal Microsoft account (Not work or school account), or click "Contact Support" if you're already signed in.
- In Product and services, select "Windows".
- In Category, select "Technical support."
- Click "Chat with a support agent in your web browser".
If you ever find yourself stuck in a loop, please use the keywords "Contact Support" or "Live Chat" (without the quotes) and click "Contact Support" at the bottom.
I really hope this information is helpful! :)