How to Remotely Sign Out of Yahoo Mail?
On the Yahoo Mail web page, click your account’s profile picture. A drop-down menu will appear. Select the Sign Out option from the drop-down menu list. If you have multiple accounts, you can also select Manage accounts to sign out of each one.
Select “Set Up a New Apple ID” next. At the top right of the screen, select “Sign Out.” Select “Sign Out” from the bottom of the page. Your device will now be signed out of iCloud services such as Mail, iTunes, Apple Pay, iCloud Photo and Data Sharing, and Shared Notes, to mention a few.
The Remove Account button is in the upper-right corner of the page. On a drop-down menu, this will activate your alternatives. On the menu, pick Remove account. This will remove all information from your Android after you delete your Yahoo account.
Tap the profile icon in the top right corner of your Android phone or tablet. select Manage accounts from the list. choose your account. nAt the bottom of this page, select Remove account and then OK to finish removing it.
Select the Stay Signed In option. When you sign in to Yahoo mail, you must select the Keep Me Logged In checkbox, which will appear right after signing in using your username and password.