NEW OUTLOOK for MAC DO NOT SUPPORT MY BIGPOND IMAP SERVER

SUBSEQUENT TO RENEWAL OF MY MICROSOFT365 SUBSCRIPTION, THE NEW OUTLOOK DO NOT SUPPORT TELSTRA IMAP AND MY TELSTRA @BIGPOND PASSWORD IS UNSUPPORTED. THE INCOMING SERVER IS 'OUTLOOK.OFFICE365.COM: 993 in stead of "IMAP.TELSTRA.COM. The outgoing mail server is correct at 'smtp.telstra.com'

I AM UNABLE TO FIND A PATHWAY TO CHANGE THIS. THE PATHWAY GIVEN ON THE NET "FILE > SETTINGS > ACCOUNT SETTINGS' do not exist on the new outlook and when I want to add the Telstra IMAP ACCOUNT there is an "OOPS" IN THE MICROSOFT365 RESPONSE

I REVERTED BACK TO THE OLD OUTLOOK VERSION AND ALL IS WORKING. ON MY IPHONE MY MAIL IS FUNCTIONING AS WELL AND SYNCHRONISES.