We recently moved our email to O365. I'm trying to set up the email settings on my Endpoint Central server. I have configured the settings as follows:

Server Name: smtp.office365.com

Port: 587

Sender Name: Endpoint Central

Sender Address: endpointcentral@***.com (This address is a licensed user on O365)

Test Address: my own

Email Type: SMTP

Enable TLS: Yes

Requires Authentication: Checked

Username and Password: My global administrator account

When I test the email, it returns "Unable to send mail; authentication failed".

I have tried changing the email type to SMTPS, then I get an incorrect port error. I have tried turning off TLS and also unchecking Requires Authentication. Changing either or both of those fails. What am I missing?