> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-docs-ios-ui-kit-sdk-fixes.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> How CometChat sends unread-message fallback emails and what to configure.

## Why use CometChat email notifications

Email acts as a safety net when users miss push: if a message stays unread past your wait window, CometChat can send a branded email that pulls them back to the conversation.

## How it works

* **Trigger**: Only fires when a chat message remains unread beyond the wait window you configure.
* **Templates**: Customize subject/body (sender name, snippet, deep link) per message type; manage in Templates & Sounds.
* **Preferences/DND**: Honors user/channel mutes, global DND, and quiet hours before sending.
* **Scheduling + timezones**: Respect quiet hours and deliver in the recipient’s local timezone.
* **Preferences**: Honors per-user/per-conversation mutes before sending.
* **Observability**: Use logs to verify sends and diagnose drops.

## Key capabilities

* Unread-based digests/transactional emails for 1:1 and group chats.
* Per-template customization with dynamic variables for sender, preview text, and links.
* Mute/quiet hours enforcement to avoid fatigue.
* Works alongside push/SMS as layered fallbacks.