While I was waiting for you, I cleaned up a little getting 3 in messenger and 3 in email, making BIS the default. Made Outlook a little more simple. Can sync nicely.
Then you gave me four tips which are a waste of time from my experience. To make you happy, I did first three - still getting two unknowns. Will save calling the provider as a last resort because sometimes they don't know what they are doing.
I am not the only one with this issue based on my research. Many people complained about Gmail, Yahoo, Outlook, etc. When I find the answer, I will let you know. Thank you for your patience as you have helped me to be more organized with Outlook and DM.