A Microsoft application for managing email, calendars, contacts, and tasks across devices and platforms.
Hello Ron Edwards,
Good day to you and hope you are doing well.
Regarding your post, may I know are you using New Outlook for Mac or Old/classic/legacy Outlook for Mac? You can try to check this issue with switch your current Outlook version with another one (New version to Legacy version and vice versa) and then check if you found any difference. You can change your outlook version by turn on/off New Outlook button (available in the right side of the screen) and if these button not visible go to Help menu and select Revert to Legacy Outlook.
As the same accounts work correctly earlier, so also check with Outlook Reset Preferences tool by follow the steps mention in this article.
For further check this issue, request you to kindly provide us your Outlook for Mac version details with build information, so based on it we will check and assist you further. AT this point, your kind understanding and co-operation will be highly appreciated.
Thank you so much for your precious time. Stay safe, happy and healthy forever.
Regards,
Ankita Vaidya