Best 6 Free API For Sending Email Service Providers

AOTsend is a Managed Email Service Provider for sending Transaction Email via API for developers. 99% Delivery, 98% Inbox rate. $0.28 per 1000 emails. Start for free. Pay as you go. Check Top 10 Advantages of Managed Email API

【AOTsend Email API】：
AOTsend is a Transactional Email Service API Provider specializing in Managed Email Service. 99% Delivery, 98% Inbox Rate. $0.28 per 1000 Emails.
AOT means Always On Time for email delivery.

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When it comes to sending emails programmatically, APIs play a crucial role. They provide a seamless way to integrate email functionality into your applications or services. In this article, we'll explore the best six free APIs for sending emails that can help you achieve your email marketing or transactional email needs efficiently.

1. SendGrid API

SendGrid offers a powerful, cloud-based email service that allows you to send transactional and marketing emails. Its free plan includes up to 100 emails per day, making it ideal for low-volume senders. The API is well-documented and easy to integrate, providing features like email tracking, open and click tracking, and unsubscribe management.

2. Mailgun API

Mailgun provides a robust email service for developers, with a generous free tier that allows you to send up to 10,000 emails per month. The Mailgun API supports a wide range of features, including personalized emails, tagging, and detailed analytics. Its flexibility and scalability make it a great choice for developers looking to integrate email functionality into their applications.

3. SendinBlue API

SendinBlue is another popular email service that offers a free plan, allowing you to send up to 300 emails per day. The SendinBlue API enables you to create and send personalized emails, manage your contact lists, and track email performance. Additionally, it provides marketing automation tools to help you engage with your audience more effectively.

4. SparkPost API

SparkPost offers a free tier for sending up to 15,000 emails per month. The SparkPost API boasts high deliverability rates and provides detailed analytics and reporting tools. It also supports advanced features like sub-accounts, suppression lists, and webhooks for real-time event notifications.

5. Mandrill (now Mailchimp Transactional) API

Although Mandrill has been discontinued and merged into Mailchimp as Mailchimp Transactional, it still offers a free tier for sending transactional emails. The API provides powerful personalization and tagging features, along with detailed reports and analytics. It's a great option for those already using Mailchimp for their marketing emails.

6. Amazon Simple Email Service (SES) API

Amazon SES offers a free tier that allows you to send 62,000 emails per month. The SES API provides high deliverability, scalability, and flexibility, making it a great choice for developers who need a reliable email sending service. Additionally, it integrates seamlessly with other AWS services.

In conclusion, these six free APIs for sending emails offer powerful and flexible solutions for developers and marketers alike. Whether you're sending transactional emails or marketing campaigns, these services provide the tools and features you need to get your messages delivered effectively. Choose the one that best fits your needs and start integrating email functionality into your applications today!

AOTsend adopts the decoupled architecture on email service design. Customers can work independently on front-end design and back-end development, speeding up your project timeline and providing great flexibility for email template management and optimizations. Check Top 10 Advantages of Managed Email API. 99% Delivery, 98% Inbox rate. $0.28 per 1000 emails. Start for free. Pay as you go.