Attachments to the email are not visible in the Activity Logs as well as in the Preview HTML Body of the email.Issue When Customer wants to attach specific images to the notifications or emails going out as communications via incident comminication managment. The images were not visible in the activity logs as well as in the preview HTML body. By syntax the script written to attach images looked correct.CauseThis is caused when images are stored on 3rd party server which is not secure (can be accessed via http)ResolutionMost browsers do not allow a secure website ('https') to access a resource from a non-secure site ('http'). While it is not possible to access images hosted at an insecure site from ServiceNow, it is be possible to display images hosted on a secure website. So it is advised to store the images as attachments in Servicenow instance or on secure web sites.