In the new Gmail tabbed view, I'm trying to send our company's newsletters but they keep getting filed under Promotions, when they should be categorized as Updates or Social (they are about relevant news of the day, similar to Linkedin Top News newsletter - nothing related to products and/or deals).
Is there any recommendation for instructing gmail on how to categorize incoming emails into the appropriate tabbed view?
I'm open to work on the content and/or template and/or headers.