Thanks to the header we have seen that an e-mail can be traced back to its source IP address. However, through the header of Gmail or other email clients we could obtain more information.įor example, Reply-To would be the address to which the reply is sent. Instead, From tells us the sending message, something that in many situations is easy to forge. Then we have Content type which is what makes our browser or mail client know how to interpret the content of the message. Regarding MIME-Version, it informs us of the standard email format in use. Its usual version is usually 1. Other information that appears in the header of an email
