Best Free Transactional Email Services of 2025

GetResponse offers an all-in-one marketing platform designed to equip marketers, solopreneurs, creators, coaches, and small business owners with powerful, user-friendly tools for email marketing, automation, and content monetization. With more than 25 years of experience, GetResponse supports audience growth and engagement through email campaigns, enables seamless course creation and sales, and helps turn passion into profit. It’s the ideal choice for building personal brands, selling products and services, and creating loyal customer communities.

Selzy is a simple email marketing tool for startups. Lightning-fast 24/7 expert support, even on the Free plan. From list growth to segmentation, automation, A/B testing, and analytics, Selzy covers it all. - Launch email campaigns in less than 15 minutes with Selzy’s intuitive drag-and-drop editor. - Grow your audience with ease with embedded sign-up forms or pop-ups. - Automate your campaigns in a few clicks. - Make use of direct integrations with WooCommerce, Shopify, Salesforce, Hubspot, Wordpress, Facebook Lead Ads, and so much more. - Get access to the knowledge base 150+ tutorials.

Introducing Brevo, previously known as Sendinblue — your go-to platform for enhancing customer connections through various channels like Email, SMS, and Chat. This comprehensive toolkit is designed to transform casual visitors into loyal customers. Engage your audience by reaching them directly in their inboxes with visually appealing email campaigns, and send tailored messages that go right into your customers' hands. Brevo enables businesses to cultivate and strengthen relationships through tools such as marketing automation, email outreach, transactional messaging, and SMS services. What sets us apart? Our exceptional customer happiness team drives Brevo, and our flexible pricing plans are sure to bring a smile to your face. With a seamless integration of diverse services in a single, easy-to-use platform, we strive to make your sending experience enjoyable and effective!

Partner with the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. The Twilio SendGrid Email API and proprietary Mail Transfer Agent (MTA), intuitive console, powerful features, and email experts make it easy to ensure all your email gets delivered in seconds and without interruption. Whether you’re sending 100 emails or 100 billion, SendGrid is built to scale, while maximizing inbox placement and protecting your reputation as a trusted sender. Monitor engagement data and optimize deliverability with our Deliverability Insights dashboard. Integrate with our RESTful APIs and SMTP in minutes, with sample code libraries available in 7 languages, interactive docs, templates, and more.

Discover the email solution tailored for dynamic teams seeking efficiency. We understand the challenges of finding an affordable yet effective email service, and Mailjet emerges as the ideal choice for your requirements. Our cutting-edge features empower your business growth while remaining budget-friendly. With our user-friendly email editor, Passport, you can effortlessly design stunning, responsive emails in just a few clicks. Choose from our extensive collection of free email templates or unleash your creativity by designing from scratch. Enhance teamwork with Mailjet’s Collaboration Toolkit, allowing real-time collaboration on the same email template or campaign, thus boosting your team's productivity. Significantly reduce feedback loops with our commenting and approval workflow, enabling quicker turnaround times. Tailor each email using the customer data you gather and segment your contact list to ensure the right content reaches the appropriate audience. It’s simple to make every recipient feel valued and recognized. Furthermore, analyze the effectiveness of your campaigns with real-time statistics provided for each sending, helping you refine your strategies for even better results. With Mailjet, achieving email marketing success becomes not only possible but also straightforward.

Multi-channel marketing automation platform that allows marketers to create personalized promotional campaigns. You can choose from SMS, email, or web push notification. Or you can combine multiple channels into one campaign to create a complex message sequence. The platform offers all the tools necessary to automate email marketing. You can also create subscription forms and grow your mailing list. Drag and drop is intuitive and allows users to create mobile-friendly email templates. Or, they can choose from a large gallery of predesigned templates. The company also offers a transactional email service, which allows users to send up 12000 emails for free via SMTP and API. SendPulse offers its own chatbot creator. You can create a Telegram chatbot or a Facebook Messenger chatbot to send personalized messages or as an autoresponder.

Bird, previously known as MessageBird, represents the future of CRM tailored for Marketing, Sales, and Payments, facilitating more than 5 trillion messages each year across platforms like Email, SMS, and WhatsApp. Top brands efficiently enhance their growth through Bird by engaging in tailored interactions across these channels. Innovative organizations around the globe utilize Bird's robust applications and APIs to create effective communication solutions. Start your journey today and connect with your customers seamlessly across various channels, catering to diverse use cases regardless of location. You can send marketing messages, push notifications, order confirmations, delivery updates, and much more. If operational challenges are hindering your growth, leverage automated conversations and workflows to gather essential information upfront, minimize manual tasks, establish self-service options, and direct chats to the appropriate agents. With our dependable, auto-scaling APIs, you can quickly get started with extensive documentation, comprehensive API references, and user-friendly SDKs at your disposal. Experience the power of streamlined communication and watch your business thrive.

Our Email Marketing platform provides all the tools you need in order to be a successful email marketer. Take a look at our many features, including workflows, transactional emails, automations, and campaign types, to see what we mean. You can create stunning emails with our campaign builder. You need the right tools to create an effective campaign. An expert in email marketing and digital strategies will help you understand your business and your existing email program, and determine your campaign goals. Then, we will analyze and perform a audit of your current marketing strategy and database growth strategy. We will also review your current email program in order to identify areas for improvement. We will schedule a consultation to discuss the areas that need improvement, best practices, examples, and how we can help your business win. Get a detailed guide that will show you the best way forward and how to create low-cost, high-value ways to reach your goals.

Launch and assess your email marketing initiatives with our platform. Begin your complimentary plan, which allows for unlimited sending and remains free indefinitely! Create tailored, engaging, and impactful email marketing campaigns effortlessly! Leverage our advanced infrastructure to achieve impressive inbox delivery rates. Whether it's a straightforward welcome email or a multifaceted strategy designed to boost customer loyalty, you can streamline various processes through automation. With the newfound simplicity in crafting, implementing, and monitoring campaigns, you can dedicate more time to analyzing outcomes to enhance future efforts. Discover valuable insights from each campaign with our interactive reporting tools. Enjoy comprehensive oversight of your campaigns with a quick and detailed snapshot of their progress. Monitor unique and overall open rates, click-through rates, bounce statistics, forwards, and unsubscribes, giving you a competitive edge in the email marketing arena while ensuring your strategies are always improving. Stay ahead in your marketing game by continuously refining your approach based on the data you gather.

KingSMTP (formerly known as Kingmailer, founded in 2017) is a simple and fully featured mail server / SMTP service for use by anyone, not just developers. Start sending, receiving or routing your emails with a few clicks.

EmailLabs is a cloud-based email API and SMTP service designed to send transactional and marketing emails. The unique know-how and partnership between well-know Inbox Service Providers ensure all emails sent from our servers being tailored to the requirements of foreign providers like: Gmail, Yahoo or Hotmail as well as local ISPs such as WP.pl, Onet.pl, Seznam.cz, Web.de, Seznam.cz or Libero.it. We take care of overall deliverability to make sure your messages land in customers’ inboxes, promotions or Offers tab. EmailLabs platform can be easily integrated with any email system or application that allows you to add a third party SMTP server. The whole setup process takes only 5 minutes.

Amazon Simple Email Service (SES) offers an economical, adaptable, and scalable solution for sending emails from various applications. It allows quick configuration to cater to multiple email scenarios, such as transactional messages, marketing campaigns, or large-scale communications. The service enhances deliverability and safeguards sender reputation through its flexible IP deployment and email authentication features, while sending analytics provide insight into email performance. With Amazon SES, users can securely send emails on a global scale and handle large volumes effortlessly. Whether utilizing the Amazon SES console, APIs, or SMTP, you can set up email dispatch in just a matter of minutes. Additionally, Amazon SES enables email reception, facilitating effective customer engagement on a large scale. Importantly, you only incur costs based on your actual usage of the service, making it a budget-friendly option for businesses of any size. Furthermore, this service is designed to meet the evolving needs of developers and marketers alike, ensuring they can communicate effectively with their audiences.

MailerSend is a transactional messaging service designed for developers to work faster and smarter. Intuitively designed so anyone can contribute to transactional email and SMS, while powerful infrastructure and flexible payment plans let you scale quickly. Built by deliverability experts to ensure your messages get delivered, plus dedicated IPs available for high-volume senders.

Sweego is a multichannel notifications SAAS platform. Developers can send transactional, engagement, and CRM messages via various channels, including email, SMS, push notifications, and more. The platform offers APIs, webhook and web interface for building template, follow statistics. With Sweego'API, Developers can integrate notifications and messaging capabilities into their applications. Key features include message templates, email authentication, webhooks, sandbox testing, delivrability expertise for emails, scalability, detailed logs, comprehensive statistics...

CXONCLOUD, a B2B SaaS, is designed to manage and measure customer satisfaction in just a few clicks. One solution that provides unlimited customer feedback, loyalty, awards and rewards, as well as referral marketing and email automation. It helps businesses deliver a seamless customer experience across all touchpoints. CXONCLOUD improves search and simplifies customer engagement, whether it's feedback or booking. It can automatically recognize customer sentiments and alert any impending negative word of mouth. This all-in-one app automatically measures customers' loyalty and has readymade loyalty campaigns that can be used to engage customers via email and social media. Small businesses can easily get referrals from loyal customers with just a few clicks using the built-in referral marketing campaigns. Loyal customers can be rewarded by QR codes and promo codes, as well as automatic list generation and rewards management modules.

Reliable delivery of your application emails. ActiveCampaign Postmark delivers your email on time and every time to customers. Customers expect transactional emails to arrive promptly, not later. We monitor our delivery times and share the data with the public. Our knowledgeable support team is always available to assist you, via 1-on-1 calls, webinars or email. Postmark integrates seamlessly into any stack thanks to its API libraries that support almost every programming language.

Notifications can be difficult. They require reliable, scalable, and observable infrastructure. End users must also be respectful and helpful. Drag and drop content blocks or add your custom code. Or a combination of both. You can trigger notifications based on user actions while still respecting their preferences as well as your rules. Access cross-channel statistics, including delivery status and engagement data, quickly and easily. You can prioritize your channels and use conditional logic and user preferences to control who sees what and when. With one API you can access client libraries written using the most popular programming languages. This allows you to deploy notifications faster and with cleaner code.

We are a group of passionate engineers dedicated to creating tools specifically designed for fellow engineers. Our mission is to develop the ideal email platform that we've always dreamed of — one that operates seamlessly and efficiently. You can receive instant notifications directly to your server, informing you whenever an email is delivered, opened, bounced, or a link is clicked. Furthermore, you can simulate events and test our API safely, eliminating the possibility of unintentionally sending genuine emails to actual recipients. In addition, our platform is supported by reputable IPs used by reliable senders, ensuring a balanced workload across various IP pools. Enjoy the benefits of a fully managed dedicated IP that not only warms up automatically but also scales according to your sending volume, all without any waiting periods. With our service, you can focus on what matters most: building and innovating without the headaches of traditional email systems.

Track delivery, clicks and bounce rates in real-time. Welcome to the lightning-fast delivery of transactional emails. Create beautiful, responsive emails with our drag-and drop email template builder in minutes. Supercharge your emailing abilities with our fully-warm-up dedicated IP address. Receive real-time notifications regarding email events. Use our webhooks for tracking email delivery, bounces and more. Get detailed, real-time reports on emails sent and opened. Using valuable insights, you can enhance your user's experience. Manage bounced emails with ease while ensuring that recipients who received the emails are not contacted again. Use our email API or the traditional SMTP to send emails via HTTP requests. Our email API integrates seamlessly with your website or app to ensure that your emails are delivered directly to your inbox.

SMTP2GO is a reliable outgoing email service that allows you to track and send all emails securely and easily. SMTP2GO has a redundant, multi-data center infrastructure that allows users send emails even during an internet outage. SMTP2GO features include real-time analytics and bounce/spam tracking, weekly summaries spamtrap detection, blacklist monitor, DKIM/SPF and many other features.

SocketLabs, an email delivery engine that is reliable and easy to use, allows companies of all sizes to send transactional and marketing emails quickly and easily. Trusted by major organizations like Virgin and the American Red Cross SocketLabs offers a feature-rich outgoing email server delivery solution, an easy to use dashboard interface, and an even simpler setup. It also includes advanced analytics, outgoing mail servers, and top-notch customer support.

Email marketing has the potential to elevate your business significantly, as email has become a vital part of the online ecosystem. Almost everyone on the internet possesses an email address, making it an essential communication tool. Data indicates that email campaigns can yield an impressive return of $40 for every dollar invested. Therefore, leveraging email marketing can effectively expand your business's outreach. Sarv provides specialized business email marketing services designed to ensure your message reaches the appropriate audience. Discover just how straightforward it is to craft and dispatch an attractive and tailored email using marketing tools such as automation, an intuitive drag-and-drop editor, advanced audience segmentation, A/B testing, detailed metrics, comprehensive reporting, and much more, all tailored for the demands of today’s rapidly evolving business landscape. Embrace the opportunity to connect with your customers in a meaningful way through effective email strategies.

Email marketing services empower your business to reach out to consumers at any time you choose. While it's not essential for every communication to be a direct sales approach, maintaining contact with customers should always offer them something beneficial. If you're on the lookout for a transactional SMTP service, you likely have an application designed to dispatch either marketing or transactional emails and are in need of a reliable host to send these messages in large volumes. You can build fully automated campaigns utilizing an incredibly user-friendly workflow builder that enables you to apply tags, trigger campaigns, introduce delays, and implement if-then logic, among many other features. This robust functionality enables businesses to operate efficiently and effectively. Enhance your sales through email marketing that truly connects with your audience, while our platform assists in nurturing leads by assigning points, ultimately transforming them from prospects into loyal customers. By leveraging these capabilities, your business can create a more engaging and impactful email marketing strategy.

Bluefox.email is an efficient solution tailored for SaaS businesses to create visually appealing and uniform transactional, triggered, and marketing emails while leveraging AWS SES for optimal deliverability. By utilizing pre-designed templates, your emails will display flawlessly on every device, including Outlook, providing a seamless user experience. This platform addresses frequent challenges such as design inconsistencies, rendering issues, and the risk of landing in spam folders, guaranteeing that your messages successfully reach their intended recipients. Users can take advantage of straightforward and reasonable pricing options: $100 annually or a complimentary plan featuring Bluefox branding. With the integration of AWS SES, the service offers an economical and reliable way to send emails without the worry of being marked as spam. Ultimately, Bluefox.email empowers businesses to enhance their email communication strategies effortlessly.