Samsung Galaxy S6 edge+ - Delete Gmail Threads

Messaging and Internet 145
 The inbox opens.
2. Touch and hold a conversation thread (or touch the thread's icon/picture) to add a checkmark to
it, and then tap More options > Mute.
 The thread is now hidden.
Delete Gmail Threads
If you no longer wish to keep a Gmail conversation thread (or touch the thread's icon/picture), you can
simply delete it from the inbox.
1. From home, tap Apps > Google > Gmail .
 The inbox opens.