Can't add Yahoo email account to iPhone

This seems to have been the case for me. I have been trying for about 5 days to re add my account back to the mail app. I’ve tried at home on my wireless network, not on a wireless network, while I’ve been out, on my work WiFi, etc, and it wouldn’t work. Just tried it again tonight and it finally re added the account. Looked like it was going to take me back to the same page where you pick which mail you’re trying to add and then it finally allowed me to sync it. Frustrating as all get out, but I’d tell anyone else having this problem to just keep trying at different periods.

SOLVED: One of the things the Apple techs had me try was to reset the phones settings. SETTINGS/GENERAL/RESET/RESET ALL SETTINGS. This just resets the phone settings -- you will not lose your pictures, apps., songs, etc. It's just the phone settings. This did not solve my issue. It was worth a try though.

Tonight, I noticed my password feature (for the phone) was reset and turned off and my Face ID was reset. So I set them both up again.

When I looked at the apps that wanted to use Face ID, the Yahoo Mail app. had Face ID set to off. So I flipped it to On. I thought I would then try to add my Yahoo mail account to the Mail app. Then it worked!

So I am not sure if it was the fact that my phone password was reset or my Face ID was reset. Or both. But as soon as I turned them back on, I was able to add Yahoo mail back to Mail. This did not work 20 minutes ago when I tried it after reading pita's post above.

Look into your phone password, maybe turn it on or off. reset it. Then look into Face ID, and the apps that use Face ID.

Were you using Face ID at all? I was, for certain apps.

I think it was the Face ID reset that fixed mine. Maybe my issue occurred when the Yahoo password was reset and then Face ID couldn't process the new Yahoo password. I am not exactly sure. I just know it is now fixed with messing around with these settings...

Okay took my new iPad off WiFi and used my phone as a hotspot internet connection an was able to set up my iPad

Still did not work for me. It goes to log on asking for my password and then sends me verification code. Once I put that in then it goes back to enter password.

Download the Yahoo mail app. that's the only sure way past the problems with Yahoo's servers.

This is purely a Yahoo problem, not a problem with your device.

I've had my Yahoo email address for 25 years. It is associated with many things. Just not willing to give it up yet.

Will keep looking for a solution. This just does not make sense.

Could this be a result of the update this week? Now it’s even giving me trouble with remembering passwords. Argh - this is so frustrating.

Try deleting mail account; turn off WiFi; use cellular internet. Set up account as if new.

Thanks. I opened a ticket with Apple and they escalated it to a senior tech. We did screen sharing and he was stumped. He is escalating it now to Apple Engineers. So weird...

I had the exact same thing happen and half my contacts were linked to my yahoo account . I tried calling customer service at yahoo and they informed me I had to pay to talk to someone live! WTH?!