Enauk Settings Not working on the office 365 settings

I have issues with office 365 email settings- I have entered the hostname as smtp.office365.com
User name I made as administrator and the email address is my 365 email address - jan@bbasbooks.com.au
I have entered the p/word as my 365 password
but when i test the email i get " the SMTP server requires a secure connection or the client was not authenticated the server response was 5.7.57 Client not authenticated to send mail
then in brackets it says {SY2PR01CA0035.0ausprd01.prod.oulook.com}
Can you please assist me

Read the Guide: Troubleshoot email issues | Manager. Follow any relevant links. If that does not resolve your problem, provide all specified information.