This year, Microsoft updated improve their API (GraphAPI) to access Office365 enviroment.
Alteryx have launched on Microsoft District in Public Gallery the Dataverse , Onedrive & Sharepoint Connectors.
Alteryx must develop as soon as possible an connector/email with same authenticator options as connectors Above and improve the emails settings.
It´s important to release and documentation to show wich permissions on Azure it's necssary to send the emails.
References:
Microsoft Announce:
https://docs.microsoft.com/pt-br/lifecycle/announcements/exchange-online-basic-auth-deprecated
Azure Permissions:
https://docs.microsoft.com/en-us/graph/api/user-sendmail?view=graph-rest-1.0&tabs=csharp