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Next level of Unlimited Email Marketing at an Affordable Price.

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Why Choose SMTP Server?

Take the first step toward better email delivery

See why 100000+ business has trusted SMTP Provider over 15 years

Why is Email Delivery so important?

Email delivery plays a crucial role in driving business success. Whether it's account activation, password reset notifications, abandoned cart reminders, or product usage-triggered communications, transactional emails have a direct impact on your revenue.

Revenue Impact

Transactional emails like cart abandonment reminders, sign-up verifications, and account confirmations are essential to revenue generation. These emails must be delivered promptly and reach your customers' inboxes to maximize their effectiveness.

Customer Retention Impact

Automated emails based on product or feature usage, onboarding communications, and other customer-focused messages significantly influence retention rates, keeping users engaged and loyal.

Brand Engagement Impact

When emails are caught in spam filters or delayed, it damages how customers perceive your brand and affects the overall relationship you build with them. Ensuring timely and reliable email delivery is key to fostering trust and engagement with your audience.

87% of marketers prefer email as their primary mode of communication

> Unmatched Deliverability

Designed for scalable, reliable delivery

Send email quickly and securely with this flexible and scalable service.

Start Sending

— Over 15 years of email delivery success

Delivery Rate 98%
Uptime 99%
SMTP Provider is well-known among ISPs as one of the most reliable and trusted senders on the internet.

ISP Relations

SMTP Provider ensures a stellar reputation with mailbox providers by preventing spam and maintaining top delivery rates.

Super-Fast Delivery

With over 99% uptime and minimal latency, SMTP Provider guarantees lightning-fast email sending when speed matters.

Optimized Sending

Backed by 15+ years of innovation, SMTP Provider’s advanced infrastructure adapts to evolving ISP protocols for seamless email delivery.

When speed and simplicity of integration matters

The SMTP email API is designed for simplicity and scalability,
making development seamless.

Send unlimited emails with just a few lines of code.

Easily integrate our API interface and language-agnostic architecture in minutes.

$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://app.smtpprovider.com/api/send-mail?to=test@example.com&from=info@example.com&from_name=support&subject=test%mail&body=%3Cp%3Ehappy%20birthday%3C%2Fp%3E&token=*****************',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => '',
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 0,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'POST',
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;
APIKey {

status // string – Current status of the API key

description // string – Description for API key

key //string – The actual API key value

date_created // string – timestamp of when API key was created. }
CreateDkimKey {

status // string – Request status.

data { // description: Domains

dkim_key // string – request result

} }

Send Emails in Minutes with Your SMTP Credentials

Step 1: Activate Your Account

Sign up, verify your email, and confirm you're not a bot.

Step 2: Set Up Your Domain

Add DNS records to verify ownership, and optionally enable DKIM and SPF for added authentication.

Step 3: Start Sending

Integrate our code with your product or enter your SMTP credentials into your preferred tool.

> Switch To SMTP

Seamless Migration and Expert Support

Each month, we onboard thousands of new customers and manage hundreds of smooth migrations from other providers. Plus, SMTP Provider offers dependable, round-the-clock in-house support.

Get a custom quote

Expert Support

At SMTP Provider, we have in-house delivery and support experts available to resolve your technical issues round the clock.

Custom API Integrations

Get expert integration and development guidance from our experienced team every step of the way.

Turnkey Migration

We assist hundreds of customers each month in migrating from providers like SendGrid, Mailgun, and more.

Managed Onboarding

Our dedicated account management team ensures a seamless and effortless onboarding process for your business.

Request More Information

Power Up Your Email Campaigns with Our SMTP Server – Unlock Reliable, Scalable, and
High-Deliverability Solutions


> get started

Purchase an SMTP Promotional Plan

Start small and scale with ease. All SMTP plans include Reputation
Defender as an optional add-on.

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