"Unsubscribe" and "opt-out" are related terms often used in the context of email marketing as they have different meanings:
1. Unsubscribe: When a recipient chooses to "unsubscribe" from an email list, it means they no longer want to receive emails from a particular sender or organization. It is typically a user-initiated action and is considered a request to be removed from the sender's email list.
2. Opt-Out: It is a broader term that refers to the process or action of choosing not to participate in something. This can be used interchangeably with "unsubscribe" but may also encompass other actions where a recipient chooses not to receive certain types of emails or communications.