In the past I’d get an email from some company, and I’d be like who are they again? I can’t remember what they do. I wonder if I have an account there or something.
If I can’t recognize immediately who this company is and why I’m getting this email: unsubscribe.
Email is such a personal space and tending to it so important, there is no way a company that I don’t even recognize is worth all that parsing time.