> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getmeasure.com/llms.txt
> Use this file to discover all available pages before exploring further.

# SendGrid

SendGrid integration enables you to send customer emails from your own domain, giving you control over deliverability and brand consistency. Route invoices, payment receipts, and contract notifications through your SendGrid account.

## Key Capabilities

* **Custom domain sending**: Send emails from your verified domain instead of Measure's default
* **Improved deliverability**: Leverage your domain's reputation and SendGrid's delivery infrastructure
* **Email tracking**: Track opens, clicks, bounces, and spam reports for all customer communications
* **Consistent branding**: Maintain your brand identity across all customer touchpoints

## Email Types

All customer-facing emails from Measure can be routed through SendGrid:

* **Invoice emails**: Invoice delivery and payment reminders
* **Payment receipts**: Confirmation emails for successful payments
* **Contract notifications**: Signature requests and contract status updates

## Tracking and Analytics

With webhook integration, Measure tracks email engagement:

| Event           | Description                               |
| --------------- | ----------------------------------------- |
| **Delivered**   | Email successfully delivered to recipient |
| **Opened**      | Recipient opened the email                |
| **Clicked**     | Recipient clicked a link in the email     |
| **Bounced**     | Email could not be delivered              |
| **Spam Report** | Recipient marked email as spam            |

Email status is visible on invoice and contract records, helping you understand customer engagement and troubleshoot delivery issues.

## Requirements

* Verified domain or sender signature in SendGrid
* SendGrid API key with Mail Send and Tracking permissions