Final answer:
A notice of dishonour can be served on the drawer in person, through an authorized agent, electronically via email, or through registered mail.
Step-by-step explanation:
A notice of dishonor can be served on the drawer in person or through an authorized agent, electronically via email, or through registered mail. These are the three acceptable methods that ensure the notice is received by the drawer. For example, if a notice of dishonour is sent through email, it is important to obtain a read receipt or other form of confirmation to establish that the email was received by the drawer.