If you receive an email bounce test, nothing is wrong with your email or account. It is a random test to make sure that people are not using disposable email addresses. If the email goes through so you can read it, there is absolutely nothing wrong and you don’t have to do anything, you can just delete the email. The email says:
Your email address requires attention
This email is a system generated email sent to you as a test. If you have received this email, then your account email is working just fine and you can ignore it.
To make sure that your emails aren’t bouncing, you can:
1.) Ensure that your email inbox is not full.
2.) Ensure that #SITENAME# is added to your email’s contact list.
3.) Ensure that your email account is not set to vacation mode or auto-reply