Inserting images into email body of Send Outlook Mail Messages

Hi all,

I’ve been trying to insert images into send outlook mail message via html codes and stumbled upon this.

This method requires the manual input of Attachments such as below. Sending without attaching anything results in a missing image.

It works if the amount of images are static but for my use case, the number of images vary depending on an excel list and therefore I am unable to manually specify in attachments.
I’ve tried using Attachments collections as seen below but the images still appear to be broken however.

Any help would be appreciated!