If your Play MPE release emails go directly to the Promotions tab in Gmail instead of your primary inbox, follow the steps below:
1) Log into your gmail email account
2) Click the settings button on the upper right-hand side of the menu
3) Select "See all settings"
4) Go to the “Filters and Blocked Addresses" tab
5) Select "Create a new filter"
7) Select the check box for “Also apply filter to matching messages" and set the "Categorize as" field to "Primary". Select "Create filter".