Spoofing (ปลอมแปลง) is the forgery of an email sender name so that the message appears to have originated from someone or somewhere other than the actual source
Spoofing is one of the main tactics used by spammers (and virus writers) to induce or trick recipients in to opening and perhaps responding to their solicitations.
It is generally not illegal and might even serve a legitimate purpose under some circumstances- says, a “whistle-blowing” employee fearful of retaliation who reports a company ‘s illegalities to a government agency.
It is illegal, however; if it involves a direct threat of violence or death.