Data & Analytics

SendGrid Email Delivery

Deliver transactional and marketing emails at scale with SendGrid API, templates, and analytics.

Claude Code Cursor Copilot Windsurf Gemini CLI

Overview

SendGrid (Twilio SendGrid) is one of the most established email delivery platforms, handling over 100 billion emails per month. The @sendgrid/mail Node.js library provides a straightforward API for sending transactional emails with support for dynamic templates, attachments, categories, and custom tracking. SendGrid handles all aspects of email delivery including IP reputation management, ISP throttling, and bounce processing.

Dynamic transactional templates use Handlebars syntax for variable substitution and conditional content. Templates are managed through the SendGrid dashboard with a visual editor, versioning, and testing tools. The API supports sending to multiple recipients with individual personalizations (different subjects, content, or template data per recipient) in a single API call.

SendGrid provides comprehensive analytics including delivery rates, open rates, click tracking, bounce classification, and spam report monitoring. The Event Webhook delivers real-time notifications for email events (delivered, opened, clicked, bounced, unsubscribed). The Inbound Parse feature can receive emails and route them to your application via webhook. The free tier includes 100 emails per day permanently.

Who Is This For?

Send transactional emails with dynamic templates
Track email opens and clicks with event webhooks
Manage email lists with suppression groups
Process incoming emails with Inbound Parse

Installation

Setup for Claude Code

npm install @sendgrid/mail

Configuration

import sgMail from "@sendgrid/mail"

sgMail.setApiKey(process.env.SENDGRID_API_KEY!)

await sgMail.send({
  to: "user@example.com",
  from: "noreply@myapp.com",
  templateId: "d-xxxxxxxxxxxx",
  dynamicTemplateData: {
    name: "John",
    resetLink: "https://myapp.com/reset?token=xxx",
  },
})