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Yahoo Mail stopped working with Apple Mail Client

Yahoo account just stopped working with Apple Mail client. It has worked for over 5 years but now cannot connect. I have deleted and re-added the account 3 times with the same results. Any one else having this issue?

iMac 27″, macOS 10.15

Posted on Sep 12, 2020 11:09 AM

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Question marked as Best reply

Posted on Sep 12, 2020 11:26 AM

Just got this from Yahoo recently on their updated security:

:

Password errors and access issues

If you try to use Yahoo Mail in a third-party email client using less secure sign-in technology, you might get a "Server password has changed" or an "Authentication failed" error message. This is because those email apps use outdated security protocols and we've disabled access to them by default now.

Use a secure option to access Yahoo Mail

Don't worry! You have options to keep using your Yahoo Mail securely and without interruption:

Continue using third-party mail apps securely

Use an app password

If you use Yahoo two-step verification, Account Key or an older email app, you may need to use an app password to access Yahoo Mail. Just remember, this is not intended for permanent access and you'll want to download the Yahoo Mail app or follow the steps below for specific third-party applications.

Learn how to generate third-party app passwords.

More information on specific third-party platforms

If you prefer to continue accessing your Yahoo email on your current third-party email application, including the default email application on your mobile phone, please see details below on how to ensure it's syncing with the latest secure sign-in method.


Access mail via Apple iOSRemove your Yahoo account and re-add it to the Apple email app on your mobile device. When you re-add the account, look for the Yahoo provider logo to trigger the secure sign-in method.

Access mail via Apple Mail on Mac OS

Remove your Yahoo account and re-add it to Apple Mail on Mac. When you re-add the account, look for the Yahoo provider logo to trigger the secure sign-in method.


8 replies
Question marked as Best reply

Sep 12, 2020 11:26 AM in response to tslayman

Just got this from Yahoo recently on their updated security:

:

Password errors and access issues

If you try to use Yahoo Mail in a third-party email client using less secure sign-in technology, you might get a "Server password has changed" or an "Authentication failed" error message. This is because those email apps use outdated security protocols and we've disabled access to them by default now.

Use a secure option to access Yahoo Mail

Don't worry! You have options to keep using your Yahoo Mail securely and without interruption:

Continue using third-party mail apps securely

Use an app password

If you use Yahoo two-step verification, Account Key or an older email app, you may need to use an app password to access Yahoo Mail. Just remember, this is not intended for permanent access and you'll want to download the Yahoo Mail app or follow the steps below for specific third-party applications.

Learn how to generate third-party app passwords.

More information on specific third-party platforms

If you prefer to continue accessing your Yahoo email on your current third-party email application, including the default email application on your mobile phone, please see details below on how to ensure it's syncing with the latest secure sign-in method.


Access mail via Apple iOSRemove your Yahoo account and re-add it to the Apple email app on your mobile device. When you re-add the account, look for the Yahoo provider logo to trigger the secure sign-in method.

Access mail via Apple Mail on Mac OS

Remove your Yahoo account and re-add it to Apple Mail on Mac. When you re-add the account, look for the Yahoo provider logo to trigger the secure sign-in method.


Sep 12, 2020 11:28 AM in response to tslayman

To fix the settings, use Connection Doctor to see what is complaining. In Mail, select Window > Connection Doctor. See what that tool is reporting is working, and is not working.


To get to the setting settings (this from Mojave, I don't have a Catalina system handy to check): Mail > Preferences > Accounts > select the problem Yahoo account > Server Settings. The outgoing mail server settings somehow do not match the Yahoo server requirements.


Here are the Yahoo settings:

https://www.lifewire.com/what-are-yahoo-smtp-settings-for-email-1170875


Here’s an Apple tool that can look up the major providers’ settings:

Mail Settings Lookup


In the Mail app mail server configuration settings, I usually enable connection security (most mail providers now require that), and usually disable the option to automatically manage the connection settings.

Yahoo Mail stopped working with Apple Mail Client

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