Receiving problem with yahoo mail server?

My email received perfectly with Gmail but yahoo doesn’t receive emails?
how can solved this problem?
The score of this mail server in is 8.9.

Verizon (Yahoo!, aol) is as troublsome as Gmail and Microsoft can be.

Do you receive any feedback in the mail logs? I would check there as well as check that your IP is not on a blacklist.

You may need to resort to using a SMTP relay …