Use the "Categorize" feature in to shunt graymail into the "Promotions" or "Social" tabs automatically, keeping your Primary inbox for human-to-human contact.
To minimize the impact of graymail, email service providers and senders can follow best practices, such as:
Search for the word "Unsubscribe" in your email search bar. This pulls up almost every piece of graymail you receive. Dedicate 10 minutes to clicking those links. 2. Use "Sweep" Rules