How to include saved image in html to auto send emai

hi , i want build to project to send email use html with save screenshot image , image save in project file , but the email cant show the image . Anyone know what is reason ? Is there any issue with my design ? Thanks for any help .

To display an image in html you need to add it by reference image name or its base 64 string.
To make it easy, I has attached workflow which can convert image to base64 string and generate html img tag for image.
Please download attached file and try.
ConvertImageToBase64.xaml (5.5 KB)