Whenever
Yahoo mail is not getting emails on the iphone. it means, there is something wrong with the user account or password. if you don't know how to get that fixed. here are the guide for you. you can apply it on your device.
1. First of all, you need to check the internet connection on the phone.
2. go to the account settings remove the account and then re-add the mail application.
3. Let's make sure that yahoo settings are correct. there is no filters or spam settings active. that is blocking the incoming emails.
4. Let's update the mail application on your sound driver. After that your mail application will start working fine.
in case, if you need more help. you need to visit
askprob blogs for more help. there you will find the complete guide for computer problems.