Yahoo email administration has now been overtaken by AT&T, so the yahoo email users are now migrated to AT&T domain such as @bellsouth.net, @att.net and @sbcglobal.net, etc. All of these domains are under AT&T . As all the yahoo users had to migrate to AT&T due to collaboration and migration that occurred in 2013 , so the users had to configure their ATT mail settings.
ATT imap settings for iPhone
Your account is all configured now on your iPhone, if you are still facing any problem then you should contact the service provider by using AT&T support platform. Make sure you don’t miss out on any information and you give this blog a good read.
See Also this post:- https://www.datarecovo.com/fix-att-email-not-working-problem/
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