Compare the Top Email APIs that integrate with Warmup Inbox as of August 2025

This a list of Email APIs that integrate with Warmup Inbox. Use the filters on the left to add additional filters for products that have integrations with Warmup Inbox. View the products that work with Warmup Inbox in the table below.

What are Email APIs for Warmup Inbox?

Email APIs allow users to incorporate functionality related to email into their applications. Generally, users can send automated email messages, fetch user data from emails, and store user actions with an API. These APIs are often easy to set up and integrate into a client's application. They also provide a secure layer of encryption between the email server and the application. Compare and read user reviews of the best Email APIs for Warmup Inbox currently available using the table below. This list is updated regularly.

  • 1
    SendGrid

    SendGrid

    Twilio SendGrid

    Email is the backbone of your customer engagement. The Twilio SendGrid Email API is the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. Our flexible 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. Monitor engagement data and optimize deliverability with our Deliverability Insights dashboard. Whether you’re sending 100 emails or 100 billion, SendGrid is built to scale. Integrate with our RESTful APIs and SMTP in minutes, with sample code libraries available in 7 languages, interactive docs, templates, and more.
    Starting Price: $19.95 per month
  • 2
    Amazon SES
    Amazon Simple Email Service (SES) is a cost-effective, flexible, and scalable email service that enables developers to send mail from within any application. You can configure Amazon SES quickly to support several email use cases, including transactional, marketing, or mass email communications. Amazon SES's flexible IP deployment and email authentication options help drive higher deliverability and protect sender reputation, while sending analytics measure the impact of each email. With Amazon SES, you can send email securely, globally, and at scale. Using either the Amazon SES console, APIs, or SMTP, you can configure email sending in minutes. Amazon SES also supports email receiving, enabling you to interact with your customers at scale. Regardless of use case or sending volume, you only pay for what you use with Amazon SES.
    Starting Price: $0.10 per month
  • 3
    SendPost

    SendPost

    SendWorks

    SendPost replaces manual workarounds, messy hacks and daily frustrations that come along with your email API/SMTP provider. See if you are sending only a few thousand emails then most email API solutions work well. You will choose one of them based on price, features or support. The real problem comes if you are one of the big senders—sending millions of emails per month. That's when managing multiple sending domains, IP-Pools and IP/Domain reputation becomes a severe headache. At that scale, even a minor dip in your email open rate or deliverability impacts your revenue. You want a solution which helps you understand what broke with your email deliverability and how you can fix it quickly. You don't want to spend hours wading through logs and manually checking if your domain or IP is blacklisted or your sending reputation is low.
    Starting Price: $7 per month
  • 4
    Mailgun

    Mailgun

    Sinch

    Mailgun is an email automation solution that is suitable for developers. With Mailgun, users are able to access a complete cloud-based email service for tracking, sending, and receiving emails sent via their applications and websites. Mailgun supports several programming languages including Python, Ruby, PHP, Java, and C#. With Mailgun's tracking feature, users are able to track all emails and reduce the chances of getting spam.
    Starting Price: $0.01/month/user
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