Yahoo//At&t mail will not open

PaulDouglas wrote:

My problem is similar, but not identical to another member. When I click on my Yahoo mail icon, it used to open yahoo/at&t mail immediately. About 2 weeks ago, it suddenly would open in a Yahoo page that read, "Page not available" with an option box that read, "Go to Inbox." When I click on this, the email opens immediately, without any issues. It is a little irritating to now have to take this extra step. In reviewing the other similar problem, someone asked if he/she had an anti-virus program installed. I do not. Also asked about a VPN, and I don't know what that means. Does anyone know what causes this? Putin? Operator error? Did I change something I shouldn't have?

https://discussions.apple.com/content/attachment/c07f2825-3d8f-4bf8-afb0-00eefc1accf6

How about asking Yahoo or AT&T or lookin at their support site, since it is their mail account you're using.