any program that can accomplish os task via email?

[kartal]

I am looking for an automation program that can check certain email account and emails and follow the script or order in that email to perform certain tasks. It would be best if it has large task-command selection and custom script support.

[tinjaw]

The closest thing I can think of is RemoteByMail, but its functionality is limited.

You could probably whip up a custom system that accepts PGP signed and encrypted emails that contain scripts (Python, Bash, VBA, etc) and execute those scripts.

Prototype could take email with Python scripts and then execute the scripts.