Best Email APIs for MailOptin

Find and compare the best Email APIs for MailOptin in 2025

Use the comparison tool below to compare the top Email APIs for MailOptin on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    Mailjet Reviews

    Mailjet

    Sinch

    $9.65 per month
    3 Ratings
    Email solution for fast-moving teams. We understand how difficult it can be to find an affordable, reliable email service. Mailjet is the ideal solution for you. Our advanced features will help you grow your company at a very affordable price. Passport, our email editor, allows you to create beautiful responsive emails in just a few mouse clicks. You can choose from a variety of templates, or create your own design. Mailjet's Collaboration Toolkit allows you to collaborate on the same campaign or email template in real-time to improve your team's efficiency. You can drastically reduce the feedback cycle by using commenting and approval workflow features to speed up. To send the right content to the right customers, personalize each email by segmenting your contact list and collecting customer data. It's easy for each recipient to feel special. You can optimize the performance of your campaign by integrating real-time statistics with every sending.
  • 2
    Brevo Reviews
    Top Pick

    Brevo

    Brevo

    €25 per month
    24 Ratings
    Brevo (formerly Sendinblue), the platform that helps build customer relationships through Email, SMS, Chat and more. The complete toolkit for converting one-time browsers to long-term customers. Beautifully designed email campaigns allow you to connect with contacts in their inbox. Send targeted messages to your customers. Brevo helps businesses build and grow relationships by automating marketing campaigns, transactional email and SMS messages. What makes Brevo different? Brevo is powered our world-class team of customer happiness experts and we offer pricing that will make you smile. Our platform offers a comprehensive suite of services in a single, easy-to-use solution. Happy Sending!
  • 3
    SendGrid Reviews

    SendGrid

    Twilio SendGrid

    $19.95 per month
    8 Ratings
    Partner with the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. The Twilio SendGrid Email API and proprietary Mail Transfer Agent (MTA), intuitive console, powerful features, and email experts make it easy to ensure all your email gets delivered in seconds and without interruption. Whether you’re sending 100 emails or 100 billion, SendGrid is built to scale, while maximizing inbox placement and protecting your reputation as a trusted sender. Monitor engagement data and optimize deliverability with our Deliverability Insights dashboard. Integrate with our RESTful APIs and SMTP in minutes, with sample code libraries available in 7 languages, interactive docs, templates, and more.
  • 4
    turboSMTP Reviews

    turboSMTP

    turboSMTP

    $14.95 per month
    7 Ratings
    TurboSMTP understands that email is not just a means of communication but the backbone of your customer engagement strategy. TurboSMTP Email API is trusted by developers and marketers alike for its time-saving features, scalability, and delivery expertise. Our service offers a flexible SMTP relay solution along with advanced features tailored to meet the needs of businesses of all sizes. With our intuitive dashboard, powerful features, and dedicated support, ensuring the delivery of your emails is seamless and uninterrupted. TurboSMTP's infrastructure is built to scale, whether you're sending a few hundred emails or millions. Integration with our service is effortless, with sample code libraries available in multiple languages, interactive documentation, and customizable templates. TurboSMTP offers webhook integrations and automates actions based on email events, streamlining your workflow. Plus, our email validation tools ensure list accuracy, reducing bounce rates and improving deliverability. TurboSMTP not only prioritizes the reliability and efficiency of email delivery but also understands the importance of providing exceptional support to our valued customers. That's why we offer multilingual 24/7 support.
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