From the cog icon in the upper right side of Gmail's dashboard, click 'See All Settings.' Select Filters and Blocked ...
To switch between inboxes, tap the Profile icon in the upper-right corner and choose an email address. Another option is to install the provider's app. Outlook and Yahoo have their own apps. This ...
If you're not getting all of the emails you should, try changing Gmail's filter, forwarding, or spam settings.