Change the workflow and prevent the mail being processed as a comment

Change the workflow and prevent the mail being processed as a comment using Script Field Processor

var mailBody = body.toLowerCase();

if(mailBody.contains("testing")){
    print("info located")   
    resultMap.put("workflow", "start progress")
    resultMap.put("comment", "")
}
else{
    print("info not located")
}

Do note, when you are changing the workflow, it can ONLY be changed using the Step Name, not the Linked Status. To get more information on this, navigate Jira Administration -> Issues -> Workflows -> corresponding workflow Edit -> Text