1. Check if auto-save for drafts is enabled:
Go to the Settings > Drafts and Folder Options and ensure Auto-save is enabled.

2. Verify that the user has folder permission to create drafts:
It’s important to ensure the user has folder permission to create drafts.

3. Make sure drafts are created in the correct folder:
Check the folder settings and verify that drafts are being created in the correct folder.

4. Verify the user is connected and can access their Exchange account:
Ensure the user is able to login to their Exchange account and can see all of their emails.