“After upgrading my iPhone to iOS 11 I can't see messages for my yahoo! account (@swbell.net). They begin to show up hours later, sometimes overnight. When I refresh email, I briefly see "downloading xx of xx" but I cannot see the emails. The same issue is now happening on my iPad after I upgraded it to iOS 11 yesterday. Had to stop using the Apple Mail app and installed the Yahoo! Mail app from the App Store in order to see my emails. ”
From the launch day of iOS 11, many users have been experiencing the issues that Yahoo mail not working on iPhone/iPad Mail app. By now the known issues include:
People swarm to the Yahoo support forums to complaint about the Yahoo mail problem with iOS Mail app, and the Yahoo team has posted a statement on Twitter saying that they are investigating and recommend downloading and using the Yahoo Mail app. Let’s see what we can do to fix Yahoo email not working with iOS 11 before Apple or Yahoo find a fix to this problem.
Solution 1. If you are unable to receive or send new email on iPhone native Mail app, try installing Yahoo Mail app from Apple Store. Yahoo Mail app is working fine on most iPhone/iPad models.
Solution 2. If Yahoo wants you to use third-party passwords when you are signing in from any other app like Yahoo Mail app, you can generate third-party app passwords with these steps:
Solution 3. Try deleting the account > resetting network settings > restarting your iPhone and then re-login to your Yahoo email account.
Solution 4. Update iOS to latest version if you are not.
Solution 5. Check your IMAP settings.
Incoming Mail (IMAP) server:
Outgoing Mail (SMTP) server:
These are the possible solutions to fix Yahoo mail not working on iPhone with iOS 11. If you are having other issues with iOS 11 like stuck on recovery mode, black screen, WiFi not working, etc., Tenorshare ReiBoot is designed to fix these system glitches related with iOS 11 without data loss. Check the most common iOS 11 problems and their fixes.