Problem with ATT Yahoo
I have AT&T email addresses that are administered by Yahoo. The Apple Mail connection settings have changed repeatedly in recent years. They now have a pre-populated login icon which automatically I recognizes your account. I am currently running Mojave.
For the last couple of days, I am unable to send emails. The SMTP addresses are shown as offline. I have deleted and reloaded the account to make sure that my settings are current to no avail. Does anyone know how to fix this? I am concerned that the Apple specs have become dated.
iMac, macOS 10.12