People email me but they get a failure message. Why and how do i fix it?

check if you are more than the 70% of your storage capacity. also, check if the addressess are being blocked on your account -- log into your mail %26gt; options%26gt;block address
People email me but they get a failure message. Why and how do i fix it?
simple....make a new email....but u can still use this one for Y!A if u dont wanna give up all ur points!