Explicit permission, voluntarily given by a user, to receive marketing email messages from a company. Express consent is required in many jurisdictions in order for companies to legally send marketing emails to customers. It is not required for transactional emails.

Explicit permission, voluntarily given by a user, to receive marketing email messages from a company. Express consent is required in many jurisdictions in order for companies to legally send marketing emails to customers. It is not required for transactional emails.