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SMTP is a leading email delivery and email relay platform designed to streamline and optimize high-volume email sending. With a strong emphasis on exceptional deliverability and a robust set of features, SMTP offers a reliable and secure solution for businesses of all sizes.
At the core of SMTP platform is its industry-leading deliverability, backed by over two decades of experience. By maintaining an impeccable IP reputation among Internet Service Providers (ISPs) and mailbox providers, SMTP ensures that your emails reach your subscribers’ inboxes consistently.
The platform offers a comprehensive suite of services to address your email delivery needs. Whether you require transactional email capabilities or need to integrate SMTP into your existing applications, the platform provides flexible solutions for developers and marketers alike.
SMTP simplifies the onboarding process, allowing you to start sending emails within minutes of signing up. It offers a scalable infrastructure that effortlessly handles email volumes ranging from a few thousand to billions, ensuring timely and reliable sending.
To enhance your email delivery rates and inbox placement over time, SMTP offers the optional add-on feature, Reputation Defender. This feature proactively monitors your email list health and suppresses invalid email addresses, safeguarding your domain and IP reputation.
With detailed reporting and proactive monitoring, SMTP empowers you with the insights and tools to optimize your email campaigns. The platform supports various use cases, including follow-up emails for web or mobile service notifications, registration emails to reduce opt-in confirmation latency, authentication emails to enhance user safety, order confirmations to build brand credibility, status updates to engage users, and policy change emails for critical information dissemination.
Key Features of SMTP:
SMTP is trusted by businesses worldwide, thanks to its exceptional performance and reliable customer support. With satisfied customers ranging from startups to established enterprises, the platform delivers results consistently and keeps emails out of ISP blacklists.
SMTP is a powerful and reliable email delivery and email relay platform that excels in deliverability, scalability, and customer support. Whether you’re a developer or a marketer, SMTP provides the tools and infrastructure necessary to optimize your email campaigns and ensure your messages reach the right recipients effectively.
Delivery Suite Plans:
High Volume Senders:
Reputation Defender Add-on:
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Unbiased reviews from Sprout24
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Quick quiz to see whether Email, Marketing Automation, or CRM suits your team right now.
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Compare costs →Estimate monthly API spend across free limits, pay-as-you-go pricing, and integrations.
Estimate API costs →Turn your plan into a person-weeks estimate with a clean task breakdown.
Estimate effort →Project list size by month from sign-ups, churn, and timeframe.
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Chris G. –
As an e-commerce store owner, SMTP has significantly improved our email delivery rates. Its reliability in handling large volumes makes it a key asset.
Kr J. –
I switched to SMTP for our non-profit communications. The deliverability has been excellent, enhancing our outreach efforts.
Vytautas N. –
Using SMTP has streamlined our business communication significantly. Its integration capabilities are impressive.
Vytautas P. –
As a small business owner, my migration to SMTP was driven by its reliability in email delivery.
Jessica G. –
Running an e-commerce platform requires effective communication, and SMTP has been a reliable partner in this endeavor.