An SMTP (Simple Mail Transfer Protocol) server is a crucial element in email delivery, and it's essential to have an affordable SMTP server that is reliable and meets your needs. The right SMTP service can help simplify email sending, save time, and resources while ensuring high email deliverability rates. In this age of digital marketing, businesses of all sizes require a cost-effective SMTP server to send transactional emails and bulk emails for marketing campaigns.

In this article, we will explore some affordable SMTP server solutions for marketers and developers that are reliable, easy to use, and packed with features to help you streamline your email communications.

1. Amazon SES

Amazon SES, or Simple Email Service, is a popular cloud-based platform that offers a powerful SMTP interface for sending transactional emails. It enables users to seamlessly integrate with various email clients, applications, and more. With Amazon SES, you can easily monitor your email activity and reputation, which is a crucial feature for any free SMTP relay server. While it is a great option for fast email delivery, Amazon SES does have its limitations.


  • Amazon SES offers excellent email deliverability and supports popular authentication methods like SPF, DKIM, and DMARC.
  • Users have multiple sender configuration options through the Amazon console or Amazon SES API.
  • A reputation dashboard is available, which includes data on delivery rate, blocked domains, and spam trap hits.
  • Amazon SES provides abundant free emails to help users get started.


Contact sales for custom pricing.


SMTP2GO offers a free SMTP relay service that enables users to send emails, track them, and achieve a high deliverability rate. The platform has an intelligent network with built-in redundancy to handle traffic and ensure email delivery even in the event of internet failure. Additionally, signing up for the free plan provides users with five days of premium email reporting. However, it only offers ticket support for message delivery.


  • Real-time analytics to help track email performance and take action
  • Detection of spam traps to ensure deliverability and avoid getting marked as spam
  • User-friendly API that is suitable for both developers and marketers
  • 14-day toll-free phone support and live chat available to help users learn and configure the server


  • Free
  • Start at – $10.00 per month

3. SocketLabs

SocketLabs offers a free SMTP relay server that is ideal for developers and IT professionals seeking to send bulk emails to their recipients. The hosted SMTP service offered by SocketLabs guarantees high deliverability rates, thereby ensuring that your emails will end up in the recipient's inbox and not in their spam folder.


  • SocketLabs offers email APIs for seamless integration of statistics with in-house apps, providing better accessibility.
  • The service provides fully-managed cloud SMTP servers for easy management and hassle-free email sending.
  • It supports DKIM signing, SPF, and ISP traffic for better email deliverability.


  • Core – $39.95 per month
  • Pro – $79.95 per month
  • Enterprise – Contact sales

4. Postmark

When it comes to sending transactional emails to your customers, Postmark's free SMTP relay server promises to make the process easy and efficient. With its sophisticated tools and responsive email templates, you can quickly create mobile-friendly campaigns that land in your customers' inboxes. The service also boasts fast email delivery and detailed analytics to track your open and click-through rates. Overall, Postmark is a secure, cost-effective, and user-friendly SMTP server solution that can easily integrate with your website or applications.


  • Highly speedy email delivery
  • Enhanced security with two-factor authentication (2FA)
  • Professionally designed and responsive email templates
  • Access to complete content history for 45 days


  • Free
  • Start at – $15.00 per month

5. Pepipost

Pepipost is also offers a free SMTP server option that is perfect for marketers and developers who want to send bulk emails and track their performance. With Pepipost, you can improve your email deliverability, maintain your sender reputation, and avoid spam traps through the use of smart analytics and AI-powered tools. Additionally, the global infrastructure of Pepipost ensures that you get a fast and reliable service with great network latency.


  • Enjoy dynamic email delivery with Pepipost's free SMTP server solution
  • Access up to 90 days of history for better tracking and analysis of your email campaigns
  • Manage subaccounts for different teams or clients within one account.


  • Starts at $349.00 per month


In conclusion, affordable SMTP servers are a valuable resource for businesses of all sizes to effectively send transactional emails and bulk emails without breaking the bank. With various free and low-cost options available, businesses can select the SMTP service that best fits their needs, from features like dynamic email delivery, reputation monitoring, and detailed analytics. By using affordable SMTP servers, businesses can improve their email deliverability, enhance their sender reputation, and track their email marketing campaigns' success.

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