For some reason or another Apple mail will not accept my log in credentials any more.
Still works fine on my Intel systems but not on any of my 3 PPC units.
Anyone familiar with this odd behavior?
That doesn't explain why it is when I start looking at generating an app specific password for apple mail, the first thing that pops up is a message telling me I need to enable 2FA, which is when I stop the process.
Plus this is only affecting a couple of older PPC systems, none of my relatively newer Intel macs are giving me any problems. Also I still log into my iCloud account with a simple email address and password, same as I have for several years now.
If I understood the letter Apple sent out in June correctly, they said 2FA would be enabled for those using 3rd party applications (not Apple) to access their icloud data.
https://support.apple.com/en-us/HT204915 That is the page for Two-Factor Authentication. You'll have to set it up for your account, then the part about "Generating App-Specific Passwords" is what you need to do for using Mail on a PowerPC Mac with iCloud.