So I'm wanting to send emails from a Microsoft account using OAuth2 and everything I am reading says I need to setup some things in Azure Active Directory (for app registration to get a client secret and all this stuff) which I can do when I follow their instructions but everything seems to be contingent on an active Azure subscription which seems to cost a heck of a lot of dollars and cents.
I can create an account for free but that's only for up to a year. So am I wrong in thinking I won't be able to do this unless I pay heaven-knows-what for an Azure subscription?
I'm going by these instructions:
If you only want to register the application in Azure AD to obtain the client secret and other basic settings about the application, you do not need to subscribe.