Therefore all source of a message can be traced. We don't want our users being the victims of junk email. We are equally intolerant of Hanmail. Net users sending junk email. Sending junk email from a Hanmail.
Net account is cause for that account's termination.
Net as relay server and return address. Net doesn't permit to use Hanmail. Net as relay server, so never try to. Additionally, we don't want to get any returned mail using spam. We will do any legal treatment to those who use Hanmail.