Review email apps on all your devicesCheck the email apps you use on each of your devices to see if they use OAuth technology. If they don’t, we suggest you switch to an OAuth email app. Otherwise, you’ll have to set up a secure mail key to use with your non-OAuth email apps.
Learn more about OAuth email appsGet one secure mail key for each email addressEvery AT&T Mail address, including each subaccount, must have its own secure mail key if you want to use it with an email app that isn’t OAuth compatible.
Good to know: Each device you use to access your email will have its own secure mail key
Access your AT&T email account without an OAuth mail app or secure mail keyYou can always read and manage your email through a Web browser at currently.com.
A secure mail key won’t affect your AT&T email passwordYou’ll still use the same password you use for your AT&T Mail account in OAuth-compatible apps, myAT&T, other AT&T products like currently.com and webmail. And, when you change your AT&T email password, you won’t need to get a new secure mail key.
Keep your secure mail key as long as you like Secure mail keys never expire.
Create a new secure mail key for a blocked or locked accountFor safety reasons, we delete secure mail keys whenever we have to lock or block your account. If that happens, you’ll have to create a new secure mail key for each AT&T Mail account.
Give your secure mail key a nicknameCreate a nickname to identify your secure mail key, especially if you have more than one. It’s much easier to recognize a nickname, like "Ari’s email" or "Kelly’s email", than the 16 random characters you entered when you set up your email.