Gmail makes it extremely easy to ignore, or “mute,” a conversation, instantly archiving an entire thread so you won’t be notified of those messages again. This places the current conversation in your All Mail folder, along with any future replies exchanged within that thread. The emails automatically bypass your Inbox folder and are only visible in All Mail or in a search for the message.
How do I mute or unmute a conversation in the Gmail app on iPhone?
To mute a conversation, open the message you want to ignore and choose Mute under the More menu (…).
Muted messages are sent to All Mail. To mute them, you must first find them by:
To unmute a call: