Yahoo email not working in mail app with iOS 11

Definitely not an IOS 11 issue. Problem started yesterday on my I phone running iOS 11 and on my old IPAD running iOS 9. Cannot fix. Even tried a suggestion on yahoo board to “generate passoword” for account. Work around is to use the yahoo app for iOS on devices till there is a fix from yahoo.

I think I’ve found a workaround for the problem. Under “Accounts and Passwords” go to “Fetch” and change from Automatically to Manual. I did that about 24 hours ago and so far, every time I’ve opened the mail app, my new mail appeared within a few seconds. I can live with that until the problem gets a proper fix. Apple, Yahoo. Come on!

My wife and I both had the same issue, here how we got full function (send and receive yahoo) of our yahoo account in Mail back:

Settings >> Accounts & Passwords >> Yahoo!>> Account >> Outgoing Mail Server SMTP >> Other SMTP Servers:

Host Name: smtp.mail.yahoo.com

Full User Name

Full Password

SSL on

Port 465

Good luck!

I know & when I went to security it wasn't there. I then clicked on the link that yahoo sent me to change the setting & when the link took me to security then the option showed up. When I changed that setting & did nothing else on my iphone I am currently able to send/receive email.

The ‘string of replies’ did not work for me because strangely I don’t have those options in my settings. What I think worked is simply creating a new password from my computer. It seemed to update my iPhone and iPad. There still isn’t a place in the app to enter password but like I wrote, it appears to be working again. I hope just creating a new password will work for you too!

Although the solution is not ideal, today I solved the "no Yahoo mail since November 2017" problem with my wife's iPhone 6 / iOS 11.2.2. Here's what I did:

I dragged the Apple iOS Mail icon out of the bottom "tray" of the home screen and then dragged the Yahoo Mail app into the "tray." My wife now has a functional Yahoo mail app nestled between the Safari icon and the Messages icon. And the iOS Mail app now sits as a useless drone on the home screen among the lesser apps like Home, Weather, Stocks, etc. and will remain there until Apple or Yahoo fix the problem.

By the way, based on responses I got from Yahoo when trying to delete and then re-setup the Yahoo account, I suspect the problem has something to do with Yahoo mail interpreting Apple's iOS Mail app as an insecure, ie, not a "modern" app.

I've been having this issue for the last two iOS updates so I find it hard to believe it's a Yahoo! issue. Something Apple changes seems to be causing issues with the ability to get email. Not Happy!

I had the same error message that the account was already added. I had to delete the account, reboot the phone, and add the account again. Then it took.

But it didn’t resolve the main issue which is Yahoo’s recent inability to send messages from the native mail app. Incoming messages arrive fine, but I can’t send a thing. Despite the incoming messages, that iPhone error message about having the wrong user name or password for the yahoo account persists and is maddening.

Gmail is fine and this may be the thing that finally pushes me to drop Yahoo. The last thing I need is another single-site app on my phone.

Look higher in the string and follow the instructions, including changing the security setting on Yahoo on the computer and deleting your Yahoo account on the phone and then adding back as an "other". This fix works!

My mom was able to enter a password by going to settings>accounts and then selecting her AOL account and theres a place to enter your password. Apple for some reason decided to centralize their accounts it looks like regardless of the context (e-mail, fb, twitter, etc.) Hope this helps!

I have the same problem. There is no problem receiving yahoo mail on my 4th generation iPad. No problem with my android phone either. Just with the new iPad Pro running the latest version of iOS 11. I met with Best Buy Geek Squad on 12/15/17 to discuss the problem. They told me that it was a known problem and that Apple and Yahoo were working to resolve it. I hope they find a fix soon because this is really not acceptable.

Experiencing this issues as well! Started about a week ago for me.

Using an alternative app or deleting/re-adding my account in iOS settings have been the only steps that have worked for me. Hoping for a permanent fix soon!

I dont think it's a Yahoo issue as I have the same issue with my Gmail account. iCloud and Outlook both work fine but Yahoo and Gmail dont. The mails from them seem to come through along with an iCloud or Outlook mail. When they're pushed through it seems to force the phone to poll all accounts and drags the others with it.

Whether it is Apple or Yahoo's configuration problems, it AT&T's problem, too. I did, however, find the following website, which indicates that it is Yahoo's servers that are, presently, and have been down for the past week, and, intermittently, it seems, since the merger of AT&T and Yahoo. In my case, the incoming mail is painfully slow; but the critical problem is that my Mail program on Mac OS X puts mail I send in the "Sent" folder, but it doesn't go anywhere - not even visible on webmail in "Sent" or anywhere else. Also had strange things showing up in my "Spam" folder (like email from me to me!). Check out this "down detector" and read the comments. This is ridiculous, and costly; and I will not let this sleeping dog lie without contacting every government agency and administrative offices until it is resolved. I also think we should be credited on our bills. Hope all is resolved very soon. http://downdetector.com/status/yahoo-mail/news/173995-problems-at-yahoo-mail-5