How to Get Yahoo Mail on Your iPhone
Use the settings on your phone to add a Yahoo Mail email account to the Mail app.
Yahoo Mail Email Server Settings
The directions listed above don’t require you to make changes to the email server settings the phone uses to access Yahoo Mail because you logged in directly from the web. However, you may need the server settings for Yahoo to set up your email account manually if the directions above don’t work. Your phone requires SMTP settings to send mail through your Yahoo account from your phone. Enter the Yahoo Mail SMTP server settings to send emails. If your Yahoo emails don’t download to your iPhone, make sure the phone is using the correct Yahoo Mail POP server settings. You can also use IMAP, in which case you’ll use the Yahoo Mail IMAP server settings.
Use the Yahoo Mail App
An alternative method to viewing and sending Yahoo emails on your phone is to download the Yahoo Mail app. This is the official app from Yahoo that has features you won’t find in the built-in Mail app for iPhone. In addition to reading and replying to emails, you can use the Yahoo Mail app to:
Clip and save coupons. View flight details and check in for flights. Get notifications from people only, not newsletters or companies. Use animated photos and professionally designed stationery. Connect to Google Drive and Dropbox to send attachments.