Arrangement 1: Update your AT&T Email Server Settings:

As the inappropriate arrangement of AT&T email server settings can prompt many email issues, accordingly, it is needed to continue to refresh your AT&T email server settings for approaching just as the active mail server. Along these lines, the AT&T email server settings for both approaching and active mail server are as per the following:

Approaching Mail Server:

Server Type: IMAP

Server Name: imap.mail.ATT&T.net

Kind of Security: TLS/SSL

Port Number: 993

Active Mail Server:

Server Type: SMTP

Server Name: smtp.mail.ATT&T.net

Kind of Security: SSL/TLS

Port Number: 465

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