MSGraph-IMAP proxy

  go install github.com/tgulacsi/imapclient/cmd/graph-proxy@latest
  graph-proxy -client-id=xxx :1143

Authentication, Authorization

Right now, this app uses Application permission with the OAuth 2.0 credentials flow.

Maybe a Delegated permission with the implicit grant flow would be better (though it must communicate with the user).

For description, see https://laurakokkarinen.com/how-to-set-up-an-azure-ad-application-registration-for-calling-microsoft-graph/ .

It now works for me with the "msgraph-proxy" app (34f2c0c1-b509-43c5-aae8-56c10fa19ed7 ClientID).

OAuth 2.0 authorization code flow

https://learn.microsoft.com/en-us/entra/identity-platform/v2-oauth2-auth-code-flow

Azure CLI

https://learn.microsoft.com/en-us/cli/azure/install-azure-cli-linux?pivots=apt