Messages are bounced by the receiving server, that? means the server where the destination email account resides.
I find that the Road Runner (.....rr.com) seems to bounce emails more often than many others.? They also use excuses like "too many emails during this period" and other excuses for lack of service to throttle incoming traffic.
This is not a new thing; it has bee going on for years
--
Bob Bellizzi
Founder, Fuchs Friends??
Founder & Executive Director,?