If you are encountering issues while receiving or sending an email on your ATT then sign out your account and after that again sign in your ATT l account and then try to send an email. If after doing this you are unable to receive or send emails then avail ATT customer service by calling or messaging at 000. The Customer Support team will surely solve your problem faster and will also provide a worthy service. https://att.customer-servicephonenumber.com/