Using classic Outlook for Windows in business environments
Don't be frustrated. Given the number of broadband internet provider and personal email services based on imap/smtp connectivity this affects i wouldn't foresee it being more than a few store update cycles of that outlook (new) before we have drop with imap server authentication issue resolved. If you want to use outlook (new) before then just configure email service connection to use the pop protocol port instead of the imap protocol port.