Send address but not receiving emails

Hello,

I created a new email address with Yahoo. I already have a personal email address there, and I can access both without any problem.

When trying to use this second address, I notice that I can send emails from it; however, it does not receive emails. I receive a failure notice message: Sorry, we were unable to deliver your message to the following address. 552: 1 Requested mail action aborted, mailbox not found every time I send an email to this address.

Online, I see that error 552 might mean that

 the email being sent is too large or that the recipient's mailbox has exceeded its storage quota.

The email in question contains only the word "test" in the subject and in the body.

The address has just been created; it contains nothing but a message from Yahoo.

If you have any idea what might be blocking it, thank you in advance for your help.