I have set up hundreds of email accounts in my life and do not understand what is going on with yahoo mail.
So first question – is yahoo free email still allowing the use of POP/SMTP services? My outlook stopped attaching about 2 months ago and I have tried every port and setting possible to get it back and nothing.
Follow up, if it is supposed to work what are the correct settings. Online it says smtp.mail.yahoo.com 465 and SSL (or 587/TLS) and pop.mail.yahoo.com 995/SSL… I get really no error message just doesn't connect. I have had these settings for years without an issue. Tried changing passwords and many other iterations of ports/security. No dice.
Best Answer
Yahoo announced changes to their security Ween using non-Yahoo applications (such as third-party email, calendar, or contact applications) that may use a less secure sign-in method.
They announced
Other than that you could try their help page
Other than that, in answer to your direct question:
These settings from Mozilla Thunderbird email client.
For Outlook Desktop: