Can't add Yahoo email account to iPhone

What makes you so sure? I can access Yahoo Mail everywhere, except on THIS DEVICE (iPhone X).

The lousy Yahoo Mail app. also works on this phone.

The only issue is the Apple Mail app. This is so frustrating. It's on a loop. It accepts my credentials (because it tells you in red if your user name or PW is wrong). It just then goes back to the Add Account page. So this is an Apple issue. Not a Yahoo issue. Or at minimum, it's both due to their connection between the two (their handshake).

Here's another thing I just tried... I tried to add my son's Yahoo mail (he's 12 and never uses it). It won't work with my son's account either. Same issue. So I know it's not a user account issue.

I also tried the solution above. Turned off wifi and used cell data only. Same issue...

Ugggghhhhhh........

Same here. I did the exact same thing. Changed my Yahoo PW earlier today.

I can login to Yahoo mail on other non-Apple devices, browsers, etc. Different networks like work and at home. It's fine. It's just the Apple "Add Account" process isn't working. Whenever I enter my info, it does not tell me my user name or PW is wrong. It just loops back to the Apple "Add Account" screen where you choose mail providers like Yahoo, GMAIL, AOL, etc.

This leads me to think it's more of an Apple issue or link between Apple and Yahoo. I have been using iPhones for 10 years+ and I can do this stuff in my sleep. Something is definitely up. I guess I will try tomorrow. Maybe it will clear up overnight...

Was able to set my phone up by turning off my WiFi connection and using cellular data but sadly my new iPad is WiFi only and I may have to forgo set up on that device until I can get on someone else’s network.

Hello mlsr403, 

Thanks for reaching out to the Apple Support Communities! From your post I understand you're having some issues getting your Yahoo mail set up again on your iPhone 6. 

You've done a great job troubleshooting the issue up to this point. Have you tried using the iPhone on more than one network when you're setting up the email? If you haven't done so, that would be the next step I can provide. This will allow you to isolate the issue further. Verify that you've covered all the steps in this article: Add an email account to your iPhone, iPad, or iPod touch. 

If you've tried more than one network, and you still can't set up your email account or save your email settings, contact your email provider for additional assistance. Here's the page for Yahoo technical support: Help for Technical Support.

All the best!

Yahoo's servers are notoriously bad. they get out of sync with each other quite often.

Do yourself a favor and switch to another email provider. Preferably one who hasn't had over 3 Billion accounts compromised in the last few years.

Your not alone as I have the same issue today. Changed my password several times. Remapped Incoming and Outgoing servers. Updated my iOS to 12.4.3. I've been searching and searching and came across your post.

UPDATE: Another odd thing I just noticed: I also now can't login to the Yahoo Fantasy sports app. Same issue. Won't accept my user name and PW. I immediately went to my laptop and logged in just fine. I can also login on Safari on my phone. Just not Yahoo APPS or the phone's Add Mail Account section.

What is going on here??

I cleared all references to Yahoo from my phone's stored/saved credentials too.

This happened to me too yesterday. I changed my Yahoo password, my apple password, soft reset and hard reset. Nothing fixed it. No issues with desktop only ipad and iphone. Also, saw that Yahoo was not accpeting my ipad it kept coming up at like gecko when i looked in my yahoo security settings. So frusterating.

I'm sure because I've had to deal with Yahoo's pathetic servers for decades. This is strictly a Yahoo problem.

You can believe it, or not, it doesn't matter to me.

Honestly, after having every single account breached in the last few years (the count has now exceeded 5 Billion accounts compromised), I don't see why anyone in their right mind would continue using Yahoo for anything at all.

I am having the same issue. I changed my password about a month ago and was able to update it through the iPhone mail app with no issue. I had to change the password again 2 days ago and am able to log into my account on my iPad and MacBook, but not able to update the password through the iPhone mail app. I then deleted the account and tried to add it back in and now it looks like its going to accept the information but then it just takes me back to the add list again. Not sure what would have changed between a month ago and now to not allow this to work but I'm frustrated. I have updated my phone, restarted it, tried it on something other than my wifi, still nothing. I"m with the posted above. I've had this email for 15+ years, everything is tied to it, I'd rather be able to fix this issue without having to use to the yahoo mail app, then have to change my email address. It makes no sense as to why it all of a sudden won't update.

Your account was compromised. I hope to high heaven that you don't use the same password for any other accounts because if you do, it was compromised.

You may want to make sure you're in on the class action they're in the process of settling now.

KiltedTim -so does it matter that I have changed my passwords? I can log in on my computer both at home and work with no problem. It is just on my ipad and iphone. I think it has to do with the update from this week.

No. The problem is that Yahoo has hundreds of mail servers. They quite often get out of sync with each other. You have no control over what server you happen to hit when you authenticate. Maybe you'll hit one that works, which happens most of the time, but you may hit one of the 'bad' servers, in which case it won't no matter what you do. Sometimes, trying from a different network will result in hitting a server that works. Continuing to try from the same network will repeatedly be directed to the bad one.

The Yahoo Mail app seems to always work, as does logging into Yahoo web mail from a browser. It's just mail clients that have problems. This is not limited to iOS, or Mac, it affects ALL mail clients. Microsoft Outlook, Thunderbird, MS Mail, you name it.

This has been a problem for years. The only solution is to wait it out. After a few days of not trying, you may be directed to one that works.

The permanent solution is to dump Yahoo mail and switch to an email provider that has a clue.

Outlook.com, gmail, iCloud, doesn't matter. Anything but Yahoo.

Oh, and this also affects all email hosted by AT&T, as they use Yahoo for mail services.

I have done this. No help. It won't add the account. It is on a loop. You choose Yahoo from page 1, enter your credentials on page 2, then you're back to page 1. The account never adds. Again, a loop to nowhere.