We have a requirement , where Pega sends email using custom flow sendCorrespondence , which selects the correspondence template and email is sent to customer, the Brand Image while sending is img src url. Hence, when customer see the email the Brand Image url downloads image  in customer mail box and they can see the brand image.

Issue comes when they reply over same email .Pega using email listener creates email Triage case.And I am using D_pxEmailHistory OOTB datapage to get email body.But the image is not coming in the pyBody.
I was trying option , to insert image explicitly after extracting emailHistory and appended as Header(Image)+ pyBody .But this is appending Image ,before the content such as (From,To,Subject etc).Not sure, if I have to manipulate the Content of the email to insert the image.Also the activity used in D_PxEmailHistory is having activity pxLoadEmail as final, with no extention points.