Email Download Link To Unregistered Clients

Hello,

Is there any way to email a link to a client (be it registered or unregistered) to take them straight to their order page so they are able to download their files?

We have unregistered customers saying that they have lost the original order email and have not been able to download their files (this happens a lot) and we would like a quick way to send them their download link. 

Many thanks

View the order in the admin.

Click the Manage Photos tab. 

Click the link that says "Send email to notify photos are ready to download (email address)"

Thank you! 

So many hidden functionalities, trying to find them all is certainly an adventure!