Cannot get mail. The mail server imap.mail.att.net is not responding.
Greetings. My SNET.net email stopped working suddenly on my old iPhone 4s. I have deleted the account andtried all ways of manually signing in, and nothing works: I get the repeated message: "Cannot get mail. The mail server imap.mail.att.net is not responding." The Yahoo sign In does not work either. The email can be accessed everywhere else, on many other devices.
The forums have suggested getting a secure key from ATT.com website, and using this as the password in the setup of the mail account on my iPhone. My question is this: Does this secure key affect or change ALL of my sign in passwords on this email account wherever I might sign in, or only this once on this iPhone email set up? Thanks for help in this frustrating matter.