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How do I stop the Yahoo sign-in request pop-up on my Outlook 365 Inbox?
Using classic Outlook for Windows in business environments
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
"I fixed the problem in 2019 Outlook Office. Change the in and out email server settings on each email address from Yahoo.com to att.net."
This solved the problem for me!
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Hi Karl
This pop up just started today. I check my settings and there is no Yahoo account.
The only way you would get that pop-up is if one of your email accounts uses Yahoo servers to provide the backend email services. Your email address does not have to explicitly be @yahoo
Hi Karl
This pop up just started today. I check my settings and there is no Yahoo account. I'm accessing my Outlook email from my desktop.
Thank you in advacne,
I have the Office 365 on my PC and running 3 email accounts on Outlook (Hotmail, Live, AT&T). I understand AT&T is now Yahoo and config is a bit different than the others. Keep in mind, I am a novice.
I fixed this problem by going to outlook's account information/account settings/server settings and found that yahoo.com had replaced my original server settings. I reconfiguered this with the original server settings and the yahoo popup went away. This change occurred without my knowledge so I'm unsure how it happened originally. You might want to perform a deep malware scan first to make sure that it does not happen again.