Are yahoo email addresses case sensitive

According to Yahoo's official documentation, Yahoo email addresses are not case sensitive. This means that you can use uppercase or lowercase letters when entering your email address, and it will still be recognized as valid.

For example, if your Yahoo email address is "[email protected]", you can log in using either:

All of these variations will work, as Yahoo's system ignores the case when checking the email address.

However, it's worth noting that some email clients or third-party services might still be case sensitive when sending or receiving emails. So, if you're experiencing issues with your Yahoo email address, it's always a good idea to double-check the case sensitivity of the service or client you're using.