When maileater imports an email containing the image in the body this image is shown as an empty frame in html_description.
(i) Send an email to the maileater mailbox account having the Image pasted to the body.
(ii) When Mail is processed by maileater we will have an attachment with this Image and an empty frame as already described in html_description.
Service Desk Manager 17.4
The fix for the reported issue will be part of 17.4 RU4, and the standalone patch T5UG579 has been ported.