> For the complete documentation index, see [llms.txt](https://help.nightfall.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.nightfall.ai/gmail/installation.md).

# Install Nightfall DLP for Gmail

Learn how to install the Nightfall DLP for Gmail.

This document explains the process of installing Nightfall DLP for Gmail. Nightfall DLP for Gmail allows you to scan all outgoing emails for sensitive data. Nightfall DLP for Gmail can scan both, email body and attachments. 

## Prerequisites

* You must have a Google Workspace account.
* You must have administrator access to the above Google Workspace account.

> <mark style="color:$danger;">**Note:**</mark> <mark style="color:$danger;"></mark><mark style="color:$danger;">Please set up SMTP relay settings and whitelist Nightfall IP addresses before you create content compliance rules. If the SMTP relay settings in Google Workspace are not whitelisted, there is a risk of emails getting dropped. See</mark> [<mark style="color:$danger;">Monitoring rule setup</mark>](https://help.nightfall.ai/gmail/installation/content_compliance_rules/monitroring)<mark style="color:$danger;">.</mark>

## Overview&#x20;

When Nightfall detects emails with sensitive data, it can either Block, Quarantine, or Encrypt the email, based on the automated actions configured in the sensitive data policy for Gmail. To enable Nightfall to perform the quarantine action, you must set up compliance rules in Google Workspace.&#x20;

Once you set up the compliance rules, you must then configure routing rules to setup the SMTP relay service to receive emails from Nightfall.