So as to fix the issue of sending email error in ATT laymen or professionals needs to execute following troubleshooting steps:
•    Make it very certain that your device in which you are accessing email is updated
•    Update the browser with the currently available version
•    You should timely delete all the cache, cookies and browser history of your web browser
•    Always check the connection of your internet
•    Ensure that you have entered the correct email address
If after executing these steps your problem is not resolved then get hold of your smartphone and dial the ATT Helpline Number to avail help from professionals.

Read More:- ATT Customer Support
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