Sender Policy Framework (SPF) is has been designed to reduce or stop forged email from being sent.

The domain the sender says that it is from gets checked by the Sender Policy Framework(SPF) and checks if the sender is allowed (according to the DNS entry) to send email from that domain. In this case, the offender tries to send mail from a fake address, then the message will be rejected.

To accomplish this you will need to add a text record to the DNS to define the mail servers allowed to send on behalf of the domain.