Microsoft authorization can succeed with the wrong active account. Treat identity verification as part of the connection test.
Step 01
Prepare the test account
Use an approved mailbox and confirm the operator is signed into the intended Microsoft tenant and identity.
Step 02
Authorize and verify
Complete consent, then compare the mailbox identity displayed in UnionStack with the approved account.
Step 03
Exercise the workflow
Retrieve and send a controlled thread, relate it to a sample case and confirm another authorized user can find it.