yahoo mail failed to authenticate

I disabled the Avast antivirus and now I can create an app password from Yahoo Account Security page.

But unfortunately even with this new generated password mac mail both from macbook and ipad could not sign in to my Yahoo account. It alerts that the password is wrong. The strange thing is that after any attempt for singing in I see via web browser into Yahoo mailbox that Yahoo sent me emails notifying me that a new device has sing in into my Yahoo mail.

Interesting. We just had a Bell sales guy going door to door the other day and while he was doing his song and dance to get me to switch, I mentioned the Yahoo and Mac Mail issue to him. He said that the issue wasn't happening with Bell, not that I believed him or expected him to know anything technical because he's in sales. I didn't know anything about the MacMail issue until it affected me, either. Anyway, while I'm sorry to hear that you're having the same issue, it proves that's it not only a Rogers issue so I can't hate on them too much. (at least not in this instance!) Its definitely a Yahoo issue and good luck with that getting fixed anytime soon. I upgraded from Catalina to Ventura as some posters suggested and it didn't make any difference. I've also tried to reset my account, not possible. Your email on your phone is still the same because the phone is not using the same interface as your MacBook. Anyway, frustrating for sure because I much prefer the MacMail, but I have no option other than to wait and get my weekly phone messages from Rogers until it gets fixed. Thanks for reaching out.

Maybe i can help u for generate an app password in yahoo. u just type "intenet account"

and follow instructions from dofharts

Did you change your Yahoo password on your Mac today?

Can i know what app name you enter when choosing generate third party apps?

I finally solved the problem of Yahoo mail failing to authenticate. I upgraded my Mac to a new one which uses the OS 14.4. Yahoo mail now works just fine. I guess the older OS was the problem.

Having the same issue. I haven't gotten onto my email on my mac in quite sometime. It's usually used for some of the kids' homeschool things they have to do. So I needed to log onto my mac's email for something that would be easier to download from here. I couldn't remember my password (good at that), so I set up a new one, and now it won't show me anything and says failed to authenticate. I will say it's kinda nice to see others having this problem, so hopefully it's on their end and it'll get fixed.

I just changed my Yahoo mail password and I am now experiencing this problem. The password works just fine on the web and iPhone mail. Generating a "third party app" provides me the error, "Sorry, this feature is not available at this time." Does anyone else have a solution?

Mac OS Catalina, 10.15.7

I'm getting same error message - in yahoo when generate an app password for Mail - it says "Sorry, this feature is not available right now!"

My problem started after updating to Catalina, after migrating from time machine backup, internet accounts did not migrate, so Im using the correct passwords (luckily all written down)... but continual authentication errors.

Rumour from Rogers is that yahoo is going to stop supporting mail apps, again because of security issues. Techs are telling people to abandon yahoo which just seems wrong to me. They are the only game in town, which is not saying very much for Canadian technology. I pay them over $300 a month and they can’t even give me access to standard apps. Meanwhile Rogers is pointing the finger at everyone and not taking any responsibility, even though they are taking my money. As of yesterday they were back to trying to blaming Mac. Mail, calendar and contacts work just fine on iPhone 14 and pc. spend another half hour on the phone with Apple who can’t come up with work around.

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?

My password is about a year old, so that is not the problem. I suspect it is Yahoo has decided that Catalina is too old, because my Yahoo mail works on my MBA with Ventura. So far I haven't found a solution other than using Yahoo web mail.

Hi Monica,

The same thing happened to me when I had to change my yahoo password back in early Sept. I now have a new MacBook running Ventura and am still not able to access MacMail. Don't run out and buy a new computer, its an issue with Yahoo and its been going on for months. I get weekly updates from my carrier that the issue is still being worked on, to no avail.

Apologies for my late reply and thank you for confirming. I'm happy for you that you're able to utilize your MacMail on your laptop. I was just speaking with a manager from our internet carrier yesterday because I had been locked out of my Yahoo mail for some reason and he said that this MacMail issue has been going on for months and is based on Apple's concern with interface security. They continue to meet with Apple regularly, but its ongoing and doesn't look like it will be rectified anytime soon, unfortunately.