Google is testing a feature on the latest version of the Android Gmail app that has been available on the web for some time now: the ability to easily unsubscribe from mass promotional email senders via a quick button. Once online, this will allow you to easily remove yourself from these lists without having to search for the “unsubscribe” link that is usually placed at the bottom of these emails.
However, this has not been the case on the Gmail mobile app, where the spam blocking and reporting options are currently available but hidden in the 3-dot menu. The lack of this easy-to-access button requires Android mobile app users to scroll through the email itself to find the unsubscribe link to click. This, of course, requires a little more time and effort on the part of the user, as these links are usually poorly placed in a very small font.
Unsubscribe button in the latest Gmail app for Android | Source – TheSpAndroid
Based on this, it seems that Google is going a step further by implementing its own solution to make the opt-out option a little clearer for users. I can see this being a huge time saver for those who like to sort through their email stream before starting their work day and would appreciate having a quick and easy way to unsubscribe from those pesky mailing lists.