This is the Email from Yahoo/AT&T. If you don't use ATT or Yahoo email you may not have received it. the links shown are limited in the info they provide.
were updating the way that you connect your AT&T Yahoo Mail to your BlackBerry device on December 19, 2018. Youre impacted if you use Blackberry 10, BlackBerry 7 or earlier devices.
What this means for you:
Around December 19, you may be asked to sign in again to your AT&T Yahoo Mail account. Then, you will need to complete the below steps. Please make sure to have both your mobile device and a computer available.
Step 1 Remove your account
You will need to temporarily remove your existing AT&T Yahoo Mail account from your BlackBerry device.
Step 2 Re-integrate account
You will need to re-integrate the account by following the steps linked below for your device.
BlackBerry 7 and earlier: Follow the instructions
BlackBerry 10: Follow the instructions
Set up email or other types of accounts on your device - BlackBerry Passport - 10.3.3
A BlackBerry Knowledge Base article on issues using AT&T Yahoo Mail on Blackberry is available here.
We are working with BlackBerry on a solution to enable OAuth access for Android BlackBerry devices.
For additional questions or concerns please visit AT&T Community Forums.
Thanks for being an AT&T Yahoo Mail user.
AT&T Yahoo Mail Team