Well folks, after about a month of reading pages and pages of forum postings about this issue I've come to a decision.
I installed Thunderbird and configured it as my email client. Now, in addition to getting and sending emails without modifications by the software, I can also sync the calendar with my "cloud" calendar. It's too bad Microsoft doesn't pay attention to these forum posts. Next time I purchase a computer, I'm going to have to look at Apple. Perhaps there's support there.
Bye
Ron
BTW - Zimbra didn't work too good. There are possibilities there, but it's not ready for prime time.