I can't receive my emails from yahoo

Please read If you can't send or receive email on your Mac - Apple Support.

The easiest way to fix that problem is to Remove your email account, then add it back as explained at its conclusion.

geni240 wrote:

I have my mom's apple computer. Everything was erased but when I try to get ,my emails I can't receive them I know the user name and password are correct but it still doesn't let me.

If you can't receive email on your iPhone, iPad, or iPod touch - Apple Support