I haven't been able to sign in since just before Noon yesterday with email using the Yahoo front page in a Google browser. Android doesn't work either along with Microsoft Win 10 email program which stopped working a few days ago.

Hey there, @U_BrokeIt_WithYourSecurityUpgrade

We have two forms of security that can be used for accessing your e-mail via 3rd Parties- Open Authentication, and Secure Mail Key. 

OAuth encrypts your username and password to protect your info from hackers and fraudsters. You are correct, however, that Thunderbird does not support OAuth.

Since you prefer to use an email app that isn’t compatible with OAuth, you’ll have to create a special code called a Secure Mail Key. You’ll use this Secure Mail Key instead of your AT&T password when you set up an email app. Due to this, to re-access your Thunderbird e-mails, we suggest looking into Creating A Secure Mail Key.

Let us know if you have any questions!

Donovan, AT&T Community Specialist

Thanks for getting back to me......I'd like to correct something regarding Thunderbird v 78.2.1 (current release (not BETA) version available for download)--it DOES support OAuth2. (Previous versions don't).

What version of OAuth does the "modernized" IMAP server for the new "Currently.com" page support? Creating a SecureMailKey was a COLOSSAL WASTE, since ATT.net does not seem to RECOGNIZE them!

How about a post on how to set up Thunderbird (#1 free email app) to work with your new Security "UPGRADE"?

As a note to the ATT IT Managers or IT Consultants who did this:

Did you bother to see how people accessed your pages  (% via Web Browsers vs % via email apps) before you implemented this "IMPROVEMENT"???

Did you bother to see which Operating Systems were being used???

If you are going to make "IMPROVEMENTS or "UPGRADES", you MUST DO THIS BEFORE YOUR BREAK INTERNET ACCESS for THOUSANDS of CUSTOMERS!!!

I saw another post on one of these ATT Forums saying that you were aware of the problem and are working on it.....your telephone reps are also saying this! The question asking for a time frame went unanswered.

How about rescinding your marvelous "UPGRADE" until you have fixed (& TESTED THE FIXES), so that your customers can access their emails across your multiple BROKEN (att.net, yahoo.net, bellsouth.net) email platforms???

We're here to help, @Help77777!

Can you let us know what domain email (sbcglobal, yahoo, swbell, http://sm.att.com/ad814d54, etc) you are using? In the meantime, we suggest following some steps on Resetting Your Email Password. 

If you are able to login after resetting your password, you will need to use OAuth or Secure Mail Key to access your email using 3rd parties.

Let us know if this helps. We look forward to hearing back from you!

Donovan, AT&T Community Specialist

As usual AT&T is flexing their muscles without knowing why. I have been using the Secure Mail Key for over a year but I got a "snotty email" that I if do not upgrade I will lose access to my emails. I guess this is what you get when you farm out IT to India!

@Nunya0 , is this ' "snotty email" that I if do not upgrade ' a real AT&T e-mail that mentions a secure mail key, or the phishing post that says you have to upgrade your Yahoo e-mail?

Can't open AT&T on Firefox??

I get "

Access Denied

You don't have permission to access "http://www.att.com/" on this server.

Reference #18.465dda17.1642467315.9cc2b943" when I try to login

I've been logging into AT&T to pay my bills for years??

The above message comes from AT&T's CDN: Akamai.  This normally means one of three things:

1. IP address Geolocates outside of the country
2. IP address has bad reputation (has been tagged as belonging to a hacker, or in the same small group of addresses as a hacker)
3. Your headers are too big.  Normally this means there are too many cookies in your ATT.COM cookie store.  Try logging in with incognito mode.  If that works, it's the cookie problem.

I logged in in incognito mode and got the same results. What now??