email-api
Email Gateway

Reliable Email API for Business Communication

Deliver your emails worldwide in high-volume. Our Email API is designed for high deliverability, scalability and seamless integration.

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An Email Gateway Built for Scale, Speed, Volume and Deliverability

Own Mail Transfer Agent (MTA)

Full control over the email-sending process ensures your emails are correctly routed and delivered

Spam Compliant

Our email infrastructure is fully compliant (SPF, DKIM & DMARC) with the latest standards, and includes a dynamic suppression list.

Tailored to developers needs

Webhooks, IP-Whitelisting, dedicated IP and testing capabilities to provide the tools every developer needs

EU-based data centers

European data centers and relevant certifications (GDPR, ISO) that help protect data privacy and meet regional requirements

All Data You Need to Optimize Your Email Strategy

Mail API

Popular Use Cases for the Email Gateway

Why Choose CM.com?

25+

Years of Expertise

6.7B

Messages Sent Annually

1000+

Infrastructure

99+%

Delivery Rate

TRUSTED BY LEADING COMPANIES WORLDWIDE

takeaway.com
etam
toyota
randstad
bmw group
bmw logo
mini cooper
medisch centrum haaglanden
Easily create email campaigns

A Gateway Made for Developers

Our Email Gateway API is developer-friendly, offering RESTful APIs, and detailed documentation to help make the integration easier.

Look at our documentationRequest access

Certifications and badges

juniper research
isoiec-27017 logo
iso-27018 logo
isoiec-9001 logo
isoiec-27001 logo
isoiec-20000-1 logo
isoiec-14001 logo
cpaas acceleration alliance logo

Discover Why Developers Love Our Email Gateway

Leave your information and get access to our Email Gateway API to try it out yourself! Start immediately and benefit from:

  • Global, high-volume mailing

  • Seamless and easy integration

  • Anti-block tools and guidance

Latest Articles

blog-email-api
Dec 15, 2025 • Email

The Email Gateway API: High Volumes, Worldwide Delivery, and Budget-Friendly

Does your business depend on high-volume email communication? Then you want that infrastructure to be reliable and fast. When it comes to sending millions of messages, you need performance, uptime, and control at scale. And of course, you don't want to break the bank either. We have just the thing for you: the Email Gateway API.

customer lifetime value touch points in the journey blog explain
Oct 20, 2023 • Email

What Is DMARC and How Do You Implement It?

In our digital age, email threats loom large, with phishing and spoofing becoming increasingly sophisticated. DMARC is the powerful shield that businesses and individuals need. This authentication protocol ensures email integrity, safeguarding against domain impersonation and cyberattacks. In this article, we demystify DMARC, explaining its significance in bolstering email security.

blog-email-open-rates
Aug 15, 2023 • Email

How to Skyrocket Your Email Open Rates

Email marketing has come a long way since the first campaign was sent in 1978, and it remains one of the most valuable tools in the modern marketer’s business strategy. But email marketing is sometimes dismissed as ‘spamming’ people and all your hard work crafting targeted, relevant, and timely emails to your customers or prospects will be useless if you don’t do everything you can to optimize email deliverability.

whatsapp-authentication
Apr 06, 2023 • Email

Two Factor Authentication (2FA) on Different Messaging Channels

Two Factor Authentication, or 2FA, is an effective way to protect your data and your customers. But how do you set up Two Factor Authentication? And what messaging channels can be used for 2FA?

Google Postmaster explain new features
Jan 11, 2023 • Email

How to Improve Your Email Deliverability With Google Postmaster Tools

Gmail is one of the most popular email destinations in the world. It is used by millions of individuals and organizations for both personal and professional purposes. So as an email marketer, you need to ensure that as many of your emails arrive in Gmail inboxes and are not marked as spam. To gain insight into the performance of your sent emails to Gmail inboxes, Google has developed a tool called Google Postmaster Tools. In this blog, we will tell you what it is and how it can help your business.

marketing-automation-workflows
Sep 15, 2022 • Email

How to Automate Marketing With Workflows

The digital landscape is changing rapidly. This affects (digital) marketers who feel the pressure to do more in the same amount of time. Marketing automation helps marketers to focus on what’s really important by automating recurring tasks and managing leads. But what is marketing automation exactly? And how can it help you to do more with the same amount of time? We’ll answer all your questions in this blog and even suggest one of the most helpful marketing automation tools to help you work more efficiently.

email-campaign-strategy
Sep 07, 2022 • Email

Email Marketing: 5 Winning Email Campaign Strategies For Growth

What methods do you know for reaching and engaging your customers? SMS, WhatsApp, social channels, email marketing... the list is long and pretty exciting. Yes, today’s businesses have the world at their fingertips and can use communication methods that simply weren’t available back in the day.

sms-email-leads
Jun 16, 2022 • Email

How to Get More Leads With SMS and Email Marketing

If you use SMS or email - or better yet, both - as marketing channels, you set up your message, send it out and analyze the results. But how do you improve that message for better results the next time you send out your SMS or Email?

blogpost-2023-regular-03
Feb 10, 2022 • Email

Boost Your Email Open Rates With Preview Text

Every marketer dreams of everyone opening and reading their emails. However, we all know this is nearly impossible. The height of your email open rates is very dependent on your subject line. You make the first impression on your recipient with your subject line, which is critical to your open rates. You are probably already spending a lot of time on this, but did you know that you can achieve even better open rates with preview texts? In this blog, we'll discuss how to take control of your preview text to ensure that nobody misses your first impression.

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