10 Best SMTP Service Providers for Hight Email Delivery Rates

smtp email services

Are you in search of the optimal SMTP service providers? A proficient SMTP service provider is essential for ensuring the dependable delivery of emails from your website to your users.

For many senders, the introduction to SMTP services often occurs while navigating the intricacies of integrating email sending into other tools. Achieving efficient and reliable email delivery at scale poses its own set of challenges.

In this comprehensive article, we will unveil the top SMTP email services renowned for their high email deliverability. Additionally, we will guide you through crucial considerations when assessing SMTP email services, offering insights into the intricate process of sending WordPress emails through these SMTP services.

Whether you’re a novice or an experienced sender, this guide aims to provide valuable information to enhance your email communication strategy.

Simplifying Your Choice : The Top 3 SMTP Email Service Providers

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SMTP Service Providers

Standout Features

Pricing

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Brevo (formerly Sendinblue)Transactional emails, email marketing, SMS marketing, drag and drop email editor, marketing email templates, live chat and more.Available on Free plan, Full marketing suite from $25/moVisit Brevo Platform
SMTP.comRobust API for seamless WordPress email delivery, high email volumes delivery, full reports, and more30-day Free Trial, paid plans start from $25/moVisit SMTP Platform
SendLayerCompatible with ecommerce platforms, Email logs for tracking outgoing messages, and more.Free trial available, paid plans start as low as $5/moVisit SendLayer

What is SMPT?

SMTP, or Simple Mail Transfer Protocol, establishes a set of rules governing communication among email servers. Its primary function is to send, relay, and receive emails, ensuring the accurate and efficient delivery of messages.

Universally supported, SMTP seamlessly integrates with various email platforms and services, making it a fundamental component for businesses and ensuring reliable email communication.

When it comes to SMTP servers, there are both paid and free options available. However, many free email services discourage the use of their SMTP servers for automatic emails. To guarantee proper email delivery, it is advisable to sign up with reputable SMTP service providers.

Fortunately, several top SMTP service providers offer generous free plans that cater to the needs of most websites. Before delving into the best SMTP service providers with high deliverability, it’s essential to consider key factors when choosing the right SMTP Email Services.

Key Considerations When Evaluating SMTP Email Services

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A reliable SMTP service provider is essential to ensure the swift and dependable delivery of your emails, providing you with the peace of mind that your messages will reach the inbox efficiently. Selecting the right provider is a critical decision that hinges on various key considerations. Here’s a guide to help you navigate this decision-making process:

  • Reliability and Uptime:

Ensure the SMTP service provider boasts a solid track record of reliability and high uptime. Consistent service availability is paramount to prevent disruptions in your email communication.

  • Delivery Speed:

Evaluate the provider’s delivery speed to guarantee prompt delivery of your emails. A fast and efficient SMTP service contributes significantly to a positive user experience.

  • Scalability:

Consider your future needs and business growth. Opt for an SMTP email service that can seamlessly scale alongside your business, accommodating increased email volume without compromising performance.

  • Security Features:

Prioritize providers with robust security measures. Look for features such as encryption, authentication, and protection against spam and other cyber threats to safeguard your email communication.

  • Analytics and Reporting:

Select a provider that offers comprehensive analytics and reporting tools. This enables you to track the performance of your email campaigns, monitor delivery rates, and identify areas for improvement.

  • Cost and Pricing Structure:

Understand the pricing model and ensure it aligns with your budget. Some providers offer flexible pricing plans, including free tiers, while others may charge based on usage or subscription.

  • Customer Support:

Assess the level of customer support provided by the SMTP service. Responsive and knowledgeable support is crucial in resolving issues quickly and ensuring ongoing smooth operation.

By carefully considering these factors, you can make an informed decision when selecting an SMTP email service that best aligns with your specific needs, contributing to the success of your email communication strategy.

Full List of Best SMTP Service Providers

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Brevo (formerly Sendinblue)

brevo smtp email service provider

Formerly known as Sendinblue, Brevo emerged in March 2023 as a rebranded SMTP service provider, and it has positioned itself as an outstanding choice, particularly for beginners.

Tailored to meet the needs of new and growing businesses, Brevo offers an extensive suite of tools for marketing automation and email marketing. This includes features such as email marketing, transactional emails, SMS marketing, and even integration with Facebook ads.

One of the distinguishing factors of the Brevo platform lies in its robust personalization capabilities and advanced marketing automation features, contributing to the overall effectiveness of marketing campaigns. Users can take advantage of a user-friendly drag-and-drop email editor, a diverse collection of marketing email templates, and real-time support facilitated through live chat.

A noteworthy aspect of Brevo is its highly extensible email API and SMTP relay service, which significantly enhances the delivery of transactional emails. In terms of pricing, this SMTP email service caters to a wide audience by providing a forever free plan, offering a generous allowance of 300 emails per day.

For users with more extensive requirements, Brevo’s paid plans start at a reasonable $25 per month, providing 20,000 emails per month without imposing any daily sending limits.

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Amazon SES

Amazon Simple Email Service (Amazon SES), an extension of AWS, the leading provider in cloud computing infrastructure, is strategically crafted to offer marketers and developers an advanced solution for email deliverability while capitalizing on the cost efficiency inherent in AWS.

Despite its cost-effectiveness, it’s important to note that Amazon SES does have some limitations in its feature set. Notably, it lacks certain functionalities, such as the capability to track and monitor message events. This limitation presents challenges in implementing crucial actions like suppressing delivery to bounces and handling spam complaints directly.

For users with specific usage patterns, Amazon SES can emerge as the most economical SMTP service available. Especially noteworthy is the free tier available for users whose websites are hosted on AWS, allowing them to send up to 62,000 emails monthly without incurring additional costs. For non-AWS hosted websites, the pricing starts at $0.10 for every 1,000 emails sent, making it a competitive option in the market.

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Postmark

postmarks smtp service
Image credit, Postmarks

Postmark stands out as a specialized SMTP email service with a singular focus: ensuring the prompt and reliable delivery of your emails to the inbox, without any complications. What distinguishes Postmark from some alternatives is its exclusive dedication to email delivery, foregoing additional features like SMS marketing or social ads.

The key strength of Postmark lies in its expert team, committed to providing exceptional support via email, chat, or phone, and responding to inquiries with remarkable speed. Notably, the service retains email content, events (delivery, click, open), and metadata for all messages for a default period of 45 days across all plan types.

One notable feature of Postmark is its transparent and straightforward pricing structure, which is based on the number of emails sent per month. For instance:

  • Sending 10,000 emails incurs a cost of $15/month.
  • The pricing for sending 300,000 emails is $245/month.
  • For sending 1 million emails, the monthly cost is $695.

This clarity in pricing ensures that users can easily understand and anticipate their costs based on their email sending volumes.

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Mailchimp Transactional (formerly Mandrill)

mailchimp transactional smtp service

Mailchimp’s transactional add-on not only provides the expected SMTP and transactional email services but also extends into a comprehensive suite covering various aspects such as ecommerce, digital marketing, and audience management.

However, it’s worth noting that the option to purchase specific components, like Mailchimp Transactional’s SMTP capabilities, as standalone products is no longer available.

While the all-encompassing nature of Mailchimp may not be suitable for everyone, primarily due to cost considerations, it stands as a valuable solution for those seeking a unified platform for email management, branding, and more.

An important point to highlight is that Mailchimp Transactional is no longer offered as an independent product; instead, it is accessible solely as a paid add-on to the broader Mailchimp platform. For users not already on Mailchimp, accessing the transactional service might incur higher costs. The pricing structure for SMTP sending is based on blocks of 25,000 emails, with the cost per block varying based on the total monthly email volume you plan to purchase. This distinction underscores the need for careful consideration of your specific requirements and budget constraints when deciding on Mailchimp’s offerings.

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Mailgun

mailgun smtp service

Mailgun, a preferred option among developers and businesses, stands out for its strong emphasis on API utilization. While it primarily focuses on deliverability and enterprise applications, Mailgun proves to be a reliable choice for SMTP email services as well.

Boasting a robust 99.99% uptime Service Level Agreement (SLA), Mailgun has gained trust from over 225,000 businesses, including numerous global enterprises. Users appreciate the flexibility offered by their pay-as-you-go pricing model, particularly advantageous for those managing varying email volumes.

The seamless integration with WordPress websites further enhances Mailgun’s appeal, positioning it as an ideal choice for eCommerce stores, membership websites, or small businesses in need of an easily scalable SMTP service for both marketing and transactional emails.

In terms of pricing, Mailgun presents a ‘pay as you go’ plan, providing the first 5,000 emails for free during the initial month. Beyond this, their competitive paid plans cater to diverse needs in the market. For users requiring a dedicated IP and enhanced deliverability, the option starts at $80 per month, offering a dedicated IP address to meet specific requirements.

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MessageBird (formerly SparkPost)

messagebird smtp service

Formerly recognized as SparkPost, MessageBird has positioned itself as the optimal choice for enterprise firms and businesses. This preference is primarily attributed to MessageBird’s dedicated focus on data, security, and compliance, ensuring a robust and trustworthy email service.

One of the distinguishing features of MessageBird is its commitment to providing extensive documentation for troubleshooting and setup. This emphasis underscores the platform’s dedication to compliance and its commitment to delivering enterprise-level service.

On the flip side, for smaller senders or those in search of a straightforward SMTP sending tool, MessageBird and its enterprise platform might prove more than sufficient for their needs.

When it comes to pricing, this SMTP service provider offers a well-structured tiered system. The three service tiers—Starter at $20/month, Premier at $205/month, and Enterprise at $525/month—cater to different needs and levels of email volume. Each tier comes with distinct features, providing flexibility for businesses of varying sizes and requirements.

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SMTP.com

smtp: one of best smtp service providers

Leveraged by a global network of over 100,000 businesses, SMTP.com has established itself as a premier SMTP service provider. Its primary focus on SMTP relay distinguishes it in the market, particularly excelling in managing high email volumes to ensure optimal deliverability.

One of the standout features of this SMTP email service is its provision of comprehensive reports, encompassing vital metrics such as sends, views, bounce rates, and clicks. With domain reputation management capabilities, SMTP.com goes the extra mile to guarantee consistent inbox placement for all your emails.

Tailoring its services to the specific needs of WordPress website owners, SMTP.com offers versatile applications. This enables seamless automation of various communication aspects, including site notifications, registration emails, authentication emails, WooCommerce store order confirmations, status updates, and more.

In terms of pricing, SMTP.com goes beyond mere functionality. It extends a generous 30-day free trial, allowing users to dispatch up to 50,000 emails. For those seeking more advanced features, their paid plans, starting at $25 per month, present the option to upgrade for a Dedicated IP and include the reputation defender addon.

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SendGrid

sendgrid smtp service

SendGrid stands out as a robust cloud-based SMTP email service provider, uniquely positioning itself with a dual focus on its powerful SendGrid API, encompassing SMTP services, and its comprehensive email marketing functionality.

The platform goes beyond conventional email sending by extending support to SMS, WhatsApp, and video, offering users an unparalleled level of scalability and a feature-rich experience.

The reputation of this SMTP service provider for reliability is underscored by its widespread adoption among leading brands, further solidified by its affiliation with Twilio, its parent company. The seamless integration of SendGrid into Twilio’s customer engagement platform enhances its appeal, especially for enterprises seeking a unified solution across multiple communication channels.

Setting up SendGrid’s SMTP relay is not only efficient but also seamlessly compatible with any WordPress site. The platform boasts a range of features, including email address validation, delivery optimization tools, comprehensive email analytics, user-friendly email templates, and seamless integrations with various third-party apps and services.

Noteworthy additions to its toolkit include dedicated IP addresses and domain name authentication, providing users with additional tools to optimize and secure their email delivery.

SendGrid’s pricing structure is flexible and accommodating, offering a free plan that allows users to send up to 100 emails per day. For more extensive needs, their paid plans start at a reasonable $19.95 per month, ensuring accessibility for businesses of varying sizes and requirements.

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SendLayer

sendlayer smtp email service

SendLayer stands out as a highly reliable email delivery platform that combines user-friendly features, robust functionality, and affordability. Trusted by customers in over 150 countries, SendLayer seamlessly integrates with various platforms, including WooCommerce, BigCommerce, Magento, Drupal, and more.

To ensure the dependable dispatch of transactional emails, confirmation emails, shipping notifications, password resets, and more, SendLayer offers the flexibility of leveraging its API and SMTP relay. The platform also provides comprehensive email logs, empowering you to monitor outgoing messages effectively.

In addition to its core functionalities, this SMTP service provider includes valuable features such as spam filter protection, subdomains for reputation safeguarding, built-in email list management, and exceptional customer support.

Regarding pricing, SendLayer caters to a range of needs, offering a free trial allowing up to 200 emails. For more extensive requirements, affordable paid plans start at just $5 per month, providing 1,000 emails per month along with advanced features like suppression management, event-based webhooks, and unlimited mailing lists.

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Google Workspace (formerly G Suite)

google workspace

Google Workspace, crafted as Google’s comprehensive productivity suite tailored for businesses, seamlessly integrates essential tools like Google Drive, Docs, Photos, Calendar, and Gmail—all personalized under your unique domain name.

Harnessing the power of Google Workspace not only allows you to establish a professional business email address but also provides the added benefit of a user-friendly Google interface. The versatility of Google’s SMTP servers empowers you to effortlessly configure an email account for your WordPress site, facilitating the efficient sending of WordPress emails.

It’s essential to be aware that while Google Workspace offers a powerful solution, it is particularly well-suited for small business websites and blogs. This is due to its limitation on sending up to 2,000 email messages per day, making it an ideal choice for businesses with moderate email communication needs.

In terms of affordability and functionality, Google Workspace offers plans starting at $6 per user per month. This competitive pricing, combined with its robust features, positions Google Workspace as a cost-effective and comprehensive solution for businesses in search of efficient productivity and collaboration tools.

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The Importance of Choosing an SMTP Service Provider for WordPress Emails

WordPress websites heavily depend on email functionality for a variety of essential tasks. These tasks encompass fundamental activities such as:

  • Recovering lost passwords
  • Registering new accounts
  • Sending notifications for comments, new articles, password changes, and more
  • For online stores, dispatching order confirmations, invoices, and delivery information to customers via email.

By default, WordPress is configured to utilize the PHP mail() function for sending emails. However, this default setup often leads to user complaints about WordPress not sending emails, and here’s why:

  • Configuration Issues:

Most hosting providers either have the PHP mail() function misconfigured or, in some cases, disable it entirely to prevent potential server abuse.

  • Misuse and Security Concerns:

The PHP mail() function lacks authentication requirements, making it susceptible to misuse. This can result in the sending of spam emails, posing a security and integrity risk.

  • Spam Filter Challenges:

Even if the PHP mail() function is operational, WordPress emails might still be flagged as spam. Spam filters often scrutinize sender email, location, and domain name, potentially categorizing your site’s email as suspicious or spam.

To address these issues effectively, the recommended solution is to employ an SMTP email server for sending WordPress emails. This not only resolves the problems associated with the default mail method but also enhances the reliability, security, and deliverability of your WordPress-generated emails.

By adopting an SMTP email service, you ensure that your emails are sent through a trusted and authenticated channel, mitigating the risk of being flagged as spam and offering a more reliable means of communication for your WordPress website.

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Conclusion

Integrating a reliable SMTP email service stands out as the most efficient strategy to rapidly scale your email sending efforts, ultimately improving overall deliverability and ensuring the secure delivery of critical emails to the inbox.

The pivotal factor in this process lies in the careful selection of the right SMTP provider, considering key factors such as reliability, delivery speed, scalability, security, analytics, pricing, and exceptional customer support.

Our guide has meticulously detailed these essential considerations, emphasizing their significance in the decision-making process. Particularly, we’ve highlighted the tailored requirements for WordPress emails, recognizing the intricate demands of communication within the WordPress ecosystem. Your choice of a top-tier SMTP service provider plays a crucial role in empowering and optimizing your digital presence.

We trust that this article has served as a valuable resource, offering guidance to help you identify the ideal SMTP service provider that aligns with your specific needs. By choosing wisely, you can confidently elevate your digital communication efforts, ensuring a seamless and effective interaction with your audience.

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