Hi Ricardo, thanks for your answer and share with me this information. 
I need the following: when a task is created from an external email or internal email I need send automatic notification to let's know to user that the task was created.
I created an automatic actions but it doesn't work properly, I guess I'm not add the correctly filters.

Thanks in advance.

Unfortunately I didn't understand your question very well, however it reminded me of this interesting video on the subject: /https://www.youtube.com/watch?v=EtscxDQjvpY

and from this website https://odootricks.tips/?s=tasks

I hope it helps!