Issue
The Built-in function SendEmail and SendEmailExt is not supported on the HMI Runtime used with the Edge Box HMI.
Resolution
With the use of Python in version 2023, functions within the standard Python libraries can be used to find files of a type (e.g. *.hst) and attach them to an email.
Disclaimer
The views and opinions expressed in this article are those of the author(s) and do not necessarily reflect the official policy or position of Schneider Electric.