Sending bulk notifications, confirmations, and marketing emails is necessary for every business and developer. However, creating an email infrastructure from scratch can be challenging and lengthy. This is where a free Email API will come in handy.

What is Email API?

An Email API improves developer productivity as it allows you to send, receive, and track email without sending it through the email servers. These focusing APIs are vital reasons for sending emails and executing their routes to the final customers as planned.

In this blog, we shall discuss the significance of Email API integration, the 8 top free Email APIs for developers, and the most common use cases.

Why Do You Need a Free Email API?

Email API integration is what the developers need to be able to send, receive, and track the emails for their applications. No-effort Email API provides these advantages:

Scalability – It does not need more infrastructure to integrate with third-party Email services because, through its integration, it enables applications to send thousands of emails.

Deliverability – These APIs employ optimized algorithms and dedicated IPs to keep the emails away from junk folders.

Ease of Integration – Email APIs are easy to integrate, and most of them come with a well-documented SDK and RESTful APIs.

Cost Savings – Most of the providers have free plans, which are good for startups & small businesses.

Security – Leading Email API providers implement authentication protocols such as SPF, DKIM, and DMARC to ensure secure email delivery.

Automation – Developers can automate transaction emails like password resets and order confirmations without manual intervention.

8 Free Email APIs You Can Use as a Developer

Different Email APIs have different email-sending limits, deliverability, and security; thus, developers should check these factors before selecting a free Email API. Here are the 8 best free Email APIs.

1. SendGrid

SendGrid is a popular Email API provider known for its great deliverability and scalability. It comes with a free plan that permits developers to send up to 100 emails daily.

Why Choose SendGrid?

• If you need a straightforward yet powerful Email API integration, SendGrid is perfect for developers.
• Its scalable infrastructure ensures emails are delivered quickly and reliably.
• Offers advanced analytics for real-time email performance monitoring.
• Uses spam filtering, authentication mechanisms, and dedicated IP addresses for high deliverability rates.
• Supports both transactional emails and marketing campaigns.

2. Mailgun

Mailgun is one of the most commonly used platforms to send emails, and the platform gives developers 5,000 emails per month for the first 3 months free of charge. This is particularly effective for transactional emails.

Why Choose Mailgun?

• Provides a powerful yet developer-friendly Email API integration.
• Efficiently manages high-volume and small-scale email operations.
• API is available in several programming languages for easy integration.
• Email validation tool helps verify email addresses, reducing bounce rates.

3. Postmark

Postmark is an email service designed for transactional emails, which you can use for a free trial with 100 test emails. It is designed for speed and reliability.

Why Choose Postmark?

• Specializes in transactional messages with very high deliverability.
• Provides full-fledged email logs to debug issues and track email performance.
• Offers a simple yet powerful developer-friendly API for mission-critical email delivery.

4. Mailjet

Mailjet provides a free plan of 6000 emails a month (limited to 200 emails a day). It supports transactional and marketing emails.

Why Choose Mailjet?

• Serves both transactional and marketing needs.
• Easy-to-use email editor for rendering beautiful emails.
• Supports SMTP relay for easy integration.
• GDPR compliant, ensuring email data security.

5. Elastic Email

Elastic Email offers a free plan for developers, which enables sending 100 emails daily.

Why Choose Elastic Email?

• Uncomplicated and cost-effective Email API integration.
• Features a well-designed dashboard with useful info on email engagement and deliverability.
• Easy to set up, allowing developers to send emails within minutes.
• Offers email list management and automation features.

6. Amazon SES (Simple Email Service)

If you use Amazon SES, then Amazon EC2 provides a maximum of 3000 free emails per month.

Why Choose Amazon SES?

• Exceptionally scalable with top deliverability rates in the industry.
• Offers pay-as-you-go pricing, suitable for startups and enterprises.
• Seamless integrations with AWS Workflow services like Lambda and SNS.

7. Brevo (formerly Sendinblue)

Brevo provides a free plan with limits of 300 emails per day, which is excellent for a small application.

Why Choose Brevo?

• Includes transactional and marketing emails.
• Robust automation features for building targeted email sequences.
• Real-time email tracking for optimizing email performance and engagement.

8. Moosend

With a free trial covering all premium services, Moosend is great for developers testing automated emails!

Why Choose Moosend?

• Feature-packed Email API with automation capabilities.
• AI-backed email segmentation for focused email campaigns.
• Drag-and-drop email builder for creating professional-looking emails.
• Real-time analytics and performance tracking.

Conclusion

A Free Email API makes emailing easy, allowing a developer to send emails without configuring a comprehensive email server. This guide has covered 8 of the best free Email APIs available — with scalable, secure, and cost-effective offerings.

When selecting the desired Email API, some of the factors to consider are email volume, automation, security, etc. These are some of the best options to consider for your transactional email needs, whether you need an API solution for transactional emails, digital marketing campaigns, or automated notifications. With Email API integration, developers can make their applications better equipped for seamless and effective email communication.