These instructions will help you in resolving Yahoo email error code 475:
• Signing off from your Yahoo mail and then you need to again sign in.
• Try to send an email but without hyperlinks or attachments to only 1 specific recipient.
• The error generally comes when somebody tries to sign in to Yahoo account without having an authority.

These are the ways to resolve Yahoo email error code 475 using Yahoo Technical Service Phone Number. And you can take immediate action and fix the problem in an instant manner.