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Send at scale with SendGrid’s trusted email API and marketing campaigns platform, delivering 148+ billion emails for senders like you every month.
Send 100 emails/day free forever. SendGrid is the world's largest email infrastructure as a service provider. We send over 100 billion non-spam emails a month for over 80,000 paying customers including technology leaders like AirBnB, Spotify, and Uber. Try for free.
Start For Free Contact Sales. Sign up to send transactional and marketing email. All of our plans are backed by our industry-leading deliverability, reliability, and support.
Learn to send transactional and marketing emails at scale with the platform that offers a 99% deliverability rate. From quickstarts and onboarding guides to full API reference, the Twilio SendGrid docs have everything you need to send email at scale.
Send marketing and transactional email through the Twilio SendGrid platform with our Email API, proprietary mail transfer agent, and infrastructure for scalable delivery. Start for free
The SendGrid v3 Web API provides a REST-like interface that enables you to send email at scale, ensuring your application can handle high-volume email with ease.
We recommend using "apikey" for your SMTP username and creating an API Key to use for your password. For more information, click here. What kinds of account security does SendGrid offer? SendGrid offers Two Factor Authentication and IP Access Management features to secure your account.
