I have received an email informing me that I have exceeded the storage limit of my Yahoo account and will be unable to receive new emails until I click a link and re-validate.

This is a scam that has been going around for years. It attempts to scare recipients by saying: “Failure to re-validate your email account will result to loss of your account.”

Even their English is bad.

Ignore and delete and do not click the link. If you do, you could be allowing someone unscrupulous to slip into your computer and obtain personal information that could result in identity theft and give them access to your bank account.