Data destruction in email marketing should be carried out under the following circumstances:
End of data retention period: When the data retention period specified by law or company policy expires. Unsubscribed users: When a user opts out of your email list, their personal data should be securely deleted. Inactive subscribers: When subscribers have been inactive for a prolonged period, their data should be reviewed and potentially destroyed. Security incidents: Following a security breach, compromised data must be securely erased to prevent further misuse.