To troubleshoot issues with email attachments not being displayed in Outlook for Exchange, try the following tips:

1. Confirm that the view attachments feature is enabled –This is generally present in the Outlook main menu at File > Options > Trust Center > Trust Center Settings > Attachment Handling.
2. Change the Outlook security settings for Exchange – Eastablish a policy to reduce the outbound Exchange security settings by opening the Outlook main menu File > Options > Trust Center > Trust Center Settings > Security Settings > E-mail Security and selecting 'Do not check the Microsoft Exchange digital signature of outgoing messages'.
3. Create a new Outlook profile – To use a new profile, delete your existing Outlook profile and create a new one by following the steps in How do I set up Outlook?
4. Update your Outlook client – Update to the latest version of Outlook by choosing File > Office Account > Update Now.
5. Ensure that all the necessary permissions –For Outlook access to Exchange, users must be authorized first. Use the built-in check feature to add the necessary permissions by following the steps in Assign permissions to a user in Exchange.