zulip/help/include/mute-unmute-intro.md

Zulip lets you mute topics and streams to avoid receiving notifications messages you are not interested in. Muting a stream effectively mutes all topics in that stream. You can also manually mute a topic in an unmuted stream, or unmute a topic in a muted stream.

Muting has the following effects:

• Messages in muted topics do not generate notifications (including alert word notifications), unless you are mentioned.
• Messages in muted topics do not appear in the All messages view.
• Muted topics appear in the Recent conversations view only if the Include muted filter is enabled.
• Unread messages in muted topics do not contribute to stream unread counts.
• In the left sidebar, muted topics and streams are grayed out. They are also sorted to the bottom of their stream (for topics) or stream section (for streams).

!!! warn ""

**Note**: Some parts of the Zulip experience may start to degrade
if you receive more than a few hundred muted messages a day.