Follow these quick steps to ensure you get my mail:
1) Open your gmail account and notice the tabs at the top of your inbox labeled "primary", "social", and "promotions"
2) Find an email under the promotions tab from email@example.com and click and drag it into your "primary" tab.
3) A window will pop up and ask if you would like to do this for all mail from me in the future? Click yes!
That's all! Now get ready for some email heading your way :)