This may have been asked before but when one looks at the expanded header how can someone identify who the sender is or find their IP address? There is so much information in the header one would need to take a comprehensive class to interpret it.
We keep receiving many spams with the same message but to several of our disposable addresses. We want to identify where the sender is and contact someone perhaps at their ISP to cause that sender to stop/be disallowed/incarcerated/brought to justice etc.
Thank you.