Thank you for your feedback.
To change the sending name in Yahoo Mail, please follow these instructions:
Please note: Some third-party apps have their own sending name setting, which bypasses the Yahoo Mail setting. If the app you're using attaches a different name than the one saved in your Yahoo Mail settings, contact the manufacturer of the app for assistance.
Yahoo Support Team
An error occurred while saving the commentJamie McFarland commented
I have changed my last name from Mitchell to McFarland years ago and it still has not changed please fix this on your end!Jamie McFarland supported this idea ·