🚨 OAuth / Microsoft 365 + Make Connection Issue 🚨

Questions
1

Hi everyone,

We’re trying to connect Make (make.com) with Microsoft 365 to handle emails (send, read, manage folders, etc.). Here’s what we’ve done so far:
• :white_check_mark: Created an App Registration in Azure, set as multi-tenant.
• :white_check_mark: Redirect URI used:

https://www.integromat.com/oauth/cb/microsoft-smtp-imap

• :white_check_mark: Added these delegated permissions:
• Mail.ReadWrite
• Mail.Send
• offline_access
• User.Read

But now we’re stuck with these issues:

  1. When trying with the Microsoft 365 module on Make, we get this error:
    AADSTS900971: No reply address provided.
  2. With a simple “Email” block + Microsoft connection, the connection seems to work:
    • We can send an email,
    • :cross_mark: but we don’t have access to the folders, even though we added Mail.ReadWrite,
    • :cross_mark: and we also can’t create or save drafts (since draft folder access seems blocked).

So at this point, we don’t know if the limitation comes from Make or from Microsoft/Azure permissions.

:backhand_index_pointing_right: My questions for the group:
• Is the redirect URI correct, or should we use another one (like https://www.make.com/oauth/cb/app)?
• Are delegated permissions enough here, or do we also need Application permissions with admin consent?
• Has anyone managed to list folders and save drafts via Make with Microsoft 365? If yes, which exact setup did you use?

Any tips, checklists, or screenshots of a working setup would be super helpful :folded_hands:

Thanks a lot!