Hi,
I set up a custom agent to extract the serial number of an image.
This works when a logged-in user submits the request and attachment via the form, but not when the attachment is sent via email.
This is the error I get:
Note: The attachment "WhatsApp Image 2026-05-08 at 15.37.14 (1).jpeg" could not be downloaded because it is hosted on support.company.com (which is the hostmapped help center URL), which does not match the Zendesk tenant domain. Please manually review the attachment to extract the serial number and model number.”
I guess this has to do with authentication, but is there a solution for this?

