Bundles are one of DarwinMail's core features and unique selling points when compared to other products on the market.
Bundles allow the user to group similar email into one bundle, which they can then apply any action to. Entire bundles can be swiped away, deleted, snoozed, starred, pinned and more.
There are several built in bundles in DarwinMail:
You can also create a bundle from any label you have. Simply open up your settings and click the bundles tab. There you will be able to turn any/all of your labels into bundles.