Problem with the Sending Email Test step
Trying to run an email test step without any success. I have no clue why it does not work and I have been in touch our system administrator to make sure the properties are correct which they are. However, when I logged into https://login.microsoftonline.com I hade to chose an authenticator in order eto loggin so I wonder if that might interfere? I do not get any reaction at all when I press "run" to it is very hard to understand where the problem is located. Can you see any issues with the setup or have you guys had any issues running this test step?
Your settings look well, except for SMTP Mail Host which is supposed to be smtp.office365.com, not http://smtp.office365.com.
Also, richie is right regarding some security options that should be enabled in your Office365 account. I guess there is an option similar to Google’s “less secure applications” in Office365 so I recommend that you look through this, as well.
If the test step still does not work for you, please submit a case here.