Well setup my older at&t dsl email thru NEW Outlook that is on yahoo mail as well
No Issues with signing in or anything
setup oldest yahoo email i still use at times with New Outlook as well
Working fine
In addition to Comcast Xfinity Email in NEW Outlook–alls good
along with Gmail & Main Outlook email
No sync issues to report, no cannot connect messages, all appears to be working fine
So don’t think i’ll have any issues when its time to switch Comcast Email over, and if i do, then i’ll trouble shoot and solve it