Promotions: Specials, discounts, and ads. These categories help you organize your email and focus on what’s important. For example, emails under the “Promotions” category are grouped together with less focus, giving your “primary” emails a front-row seat. Opening an email in the Deals, Updates, or Promotions category will reveal the “Digest View” tool. This groups emails from the s... https://progametime.com/software/apple-software/how-to-disable-mail-categories-on-iphone/