yahoo mail failed to authenticate

Yahoo has gone to this too...

https://help.yahoo.com/kb/access-yahoo-mail-third-party-apps-sln15241.html

Yahoo App password…

Generate and manage third-party app passwords

Some older, third-party email apps (that do not use our Yahoo branded sign in page) require you to enter a single password for login credentials. To access your Yahoo Mail account on these apps, you'll need to generate and use an app password. An app password is a long, randomly generated code that gives a non-Yahoo app permission to access your Yahoo account. You’ll only need to provide this code once to sign in to your third-party email app.

https://help.yahoo.com/kb/access-yahoo-mail-third-party-apps-sln15241.html

Most likely biggest factor is using Other in Mail setup, then using a Browser that doesn’t have Yahoo PW stored init to get the App PW.



"After clicking the - symbol did you click remove from all or turn off account?" NO‼️ I just want APPLE MAIL to AUTHENTICATE w YAHOO, NOT do anything that appears as drastic '-' DELETE YAHOO MAIL BOX/APPLE MAIL and REMOVE/CLOSE YAHOO ACCOUNT PREFERENCE ENTRY in the APPLE INTERNET ACCOUNT SYSTEMS PREFERENCE PANEL. I don't want to loose 11 YRS of E📩MAIL 😱. I still appear to have YAHOO E📩MAIL, prior to 28 JUL in APPLE MAIL.

So before '-', I'd like to know that I'm not going to trash my currently installed APPLE MAIL APP.

Can You clarify exactly what will happen if I DELETE '-' the YAHOO ACCOUNT PREFERENCE ENTRY in the APPLE INTERNET ACCOUNT SYSTEMS PREFERENCE PANEL⁉️

Thanks

Respectfully

Breton Tom

That's what happened. So to summarize the solution to the Problem,

In the APPLE INTERNET ACCOUNTS PREFERENCE PANEL, I deleted '-' the original YAHOO ACCOUNT as displayed. I then utilized the '+' to add a new YAHOO ACCOUNT. I used the YAHOO 3rd PARTY PASSWORD as the PSWRD during the initialization process.

I did not get a 'FAILED to AUTHENICATE' Msg. And then APPLE MAIL proceeded to download all of YAHOO MAIL BOX.

Please Note that when You DELETE '-' the YAHOO ACCOUNT in the APPLE INTERNET ACCOUNTS PREFERENCE PANEL. It will delete the APPLE INTERNET ACCOUNT 'YAHOO'. So, I'd recommend having a MAIL BACKUP in case there was a problem recreating the YAHOO/APPLE MAIL ACCOUNT when restablishing APPLE MAIL. In my particular case, YAHOO downloaded 35K/11 YRS of E📩MAIL. It took around 4 hrs on my MAC MINI running CATALINA.

Hope this information is useful to someone.

But YAHOO/APPLE MAIL was again functional.

Unfortunately I have the same problem both to Catalina and iPad (ios12). It started when I had to change the mail password and now I cannot access to my account via Mail app. I tried to generate app password from yahoo (from multiple machines, browsers and mac/Pc), but the same alert is showing (Sorry, this feature is not available right now!).

I had attempted every solution recommended in various forums (including this one) related to the issue. In the end, the only effective solution was to upgrade my operating system from Catalina to Ventura. After completing the upgrade, I added my Yahoo email account to Mail app, and this time it worked successfully. And Ventura 13.5.1 works perfect with my 13" 2017 Macbook Pro.

All I get is sent to ATT site that has zero info on third party passwords. Any aka yahoo site redirects me to ATT site! On the yahoo mail site on the browser, there is no "security" menu link to click!

What is the mail app's name? the requierments are:

Sign in to your Yahoo Account Security page.

Click Generate app password or Generate and manage app passwords.

Enter your app's name in the text field.

Click Generate password.

Follow the instructions below the app password.

Click Done.

I do not know what my app's name to enter it in the text field...

Rogers is useless. I spent more time on the phone with them this past week than I care to remember with 3 separate techs only to have a higher up tech 'expert' blame Apple for being too busy launching their new products to solve this issue. I also spent over an hour with an Apple tech who just laughed at Rogers' claim. I've tried to generate a new password to set up a new account like others have successfully done on this forum, but Rogers won't allow me to do so. I keep getting the message, "Generating an app password is currently unavailable." I wonder where the problem stems from...??? Please let me know if you've been able to sign on to your MacMail... Thanks.

You're not alone...

https://communityforums.rogers.com/t5/Internet/Can-t-create-App-password/td-p/504809/page/10

But it is Apple, tying the Mail App to the OS, it can't be modernized except to Upgrade the whole OS!

Just wondering, have you tried a different browser?

Are you using any VPN or anti-virus software?

Rogers told me that it won't be fixed for at least another month. I wonder how long they've been telling customers that. The Apple tech I spoke with told me that Verizon bought Yahoo and since Rogers and Bell banded together to keep Verizon out of Canada, this must be retribution. No competition up here.

Yes, I've tried a different browser, same result. No VPN or anti-virus software.

Thank you for your feedback, I appreciate your reply. I'll try the OS upgrade later, although so far I've been unable to do so.

Best of luck my friend... I recently had to borrow an MBA during a month in the hospital, came running Mojave, could not for the life of me setup Mail for any of my accounts, including Yahoo, Upgraded to Catalina, still impossible circles! :(

My Yahoo account worked just fine on my iMac with Catalina, until today. Now no matter how many times I enter my password it won't log on in Apple mail. It works on the Yahoo page, on my MBA, which runs Ventura, and all my mobile devices. I suspect that Catalina is now considered too old an OS for Yahoo!

I tried generation a password as suggested for 3rd party apps, and that didn't work. If anyone has a solution I would love to hear it. This is annoying to say the least.

Thanks... upgraded to Ventura this evening and still no luck. Mac Mail was working fine until last week when a Rogers administrator asked me to change my Yahoo password in order to add a new email address to my account. Wish I had have known that by changing the password I would only be able to use Yahoo mail instead of my Mac Mail, which is lacking. The other email address on the account is still working fine with Mac Mail access because that Yahoo password was not changed. Grrrrrr....

The Latest from Rogers... use a Browser...

Generating an app password is currently unavailable but don’t worry you can still access your email via Web Browser at mail.rogers.com. Additionally, you can integrate iPhone & Android devices. To see how, Set up a Yahoo! account on a device - Rogers.

When asked for an app in the dialog box of Yahoo password generator in security section I wrote "mail" and then all of the following

as described worked. I have my Yahoo Mail account in the Mail app !