They're mostly incompetent: https://www.theguardian.com/technology/2018/may/21/gdpr-emails-mostly-unnecessary-and-in-some-cases-illegal-say-experts https://www.

They're mostly incompetent: https://www.theguardian.com/technology/2018/may/21/gdpr-emails-mostly-unnecessary-and-in-some-cases-illegal-say-experts https://www.theguardian.com/technology/2018/may/21/gdpr-emai... The rest knows well that they got your address without your consent and try to get this consent from you now so that they can legally keep your data.