Request Photos Email
From a Case Record you can send an email template which requests the recipient to click a link that allows them to attach photos. The photos will then be accessible on the Case Record.
From a Case Record, go to the Feed Tab and select the Email option.
From the Email view you can select the Attach Photos Template
template. Go to the Insert Template option and search in the All Lightning Templates filter if you can’t instantly see the template.
The template will be added to the email area, you can then select a recipient to and send the email.
The recipient can click the link in the email and will see a page which allows them to upload images.
When images are uploaded they will then appear in the files section on the Case Record which you can see under the Related Tab.