macOS Apple Mail iCloud: xFInity will not send mail from iCloud account
Hello all. I've put up with xFinity cable internet being unable to send email from my iCloud account for a few years now. Workaround: I compose in Mac Mail, hit Delete/Save as Draft and then send the draft from my iPhone which is usually using the same cable WiFi as my Mac.
If I hit Send in Apple Mail I always get the attached. Years back I used to be able to send from Apple's POP server over xFinity. Now it always offers me to alter my SMTP settings which is no help. xFinity Help is no help.
keywords: macOS, Apple Mail, iCloud, xFinity, Comcast
iMac Pro, macOS 12.3