Best Transactional Email Services with a Free Trial 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.

Designed with you in mind, the emfluence Marketing Platform offers an intuitive interface and powerful features to streamline your digital marketing efforts. Whether you're launching personalized campaigns, managing multiple brands, or crafting strategies, our platform empowers you to succeed with: Email Automation: Create automated workflows that nurture leads and drive conversions. Email Marketing: Design and easily send impactful email campaigns, featuring advanced personalization options like conditional content. Social Media Management: Schedule, publish, and monitor your social media posts from one place. SMS Marketing: Engage your audience with timely and relevant SMS campaigns. Landing Pages: Create high-converting landing pages to capture leads. Automated Reporting: Understand the impact of your marketing campaigns by leveraging custom reports and analytics across channels, assets, people, and places. Website Tracking: Track visitor interactions on your website to optimize marketing strategies. Lead Scoring: Prioritize leads based on their engagement and interactions. Marketing Calendar: Plan, schedule, and manage your marketing campaigns in a centralized calendar.

ClickSend offers SMS, MMS, Voice, Online Mail, Email and Fax software for businesses. Our communications and messaging tools are simple to use, automate and integrate. That’s why they’re used by some of the most trusted brands, organisations and developers globally. Built for all, you can access ClickSend via our Dashboard, mobile app, flexible API or 900+ integrations. Plus, ClickSend offers helpful 24/7 support, and lightning fast delivery via a secure and reliable platform. From SMS marketing and alerts to bulk mailouts sent from your browser, join over 90,000+ businesses sending communications around the world. Our 100% uptime guarantee and lightning fast direct routes provide reliable messaging, no matter the channel. From small businesses to enterprise, ClickSend powers billions of messages around the world with 232+ direct carrier connections. Plus, ClickSend is always pay-as-you-go. That’s why ClickSend is business communications, solved.

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.

TurboSMTP understands that email is not just a means of communication but the backbone of your customer engagement strategy. TurboSMTP Email API is trusted by developers and marketers alike for its time-saving features, scalability, and delivery expertise. Our service offers a flexible SMTP relay solution along with advanced features tailored to meet the needs of businesses of all sizes. With our intuitive dashboard, powerful features, and dedicated support, ensuring the delivery of your emails is seamless and uninterrupted. TurboSMTP's infrastructure is built to scale, whether you're sending a few hundred emails or millions. Integration with our service is effortless, with sample code libraries available in multiple languages, interactive documentation, and customizable templates. TurboSMTP offers webhook integrations and automates actions based on email events, streamlining your workflow. Plus, our email validation tools ensure list accuracy, reducing bounce rates and improving deliverability. TurboSMTP not only prioritizes the reliability and efficiency of email delivery but also understands the importance of providing exceptional support to our valued customers. That's why we offer multilingual 24/7 support.

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.

MailCarry, a powerful, self-hosted email marketing tool that allows you to send unlimited emails, is available for download. MailCarry is a powerful self-hosted email marketing application that offers a wide range of features, including efficient contact and list management, as well as flexible sending, automated follow ups and drips. It is far ahead of other programs. MailCarry makes it easy to prepare your next sales call and email marketing campaign.

Inwise is a marketing cloud tool that allows businesses to grow their audience and connect with customers and leads. Inwise is an all-in-1 solution that allows you to do these things: - Increase your subscriber base by using popups or registration forms. - Engage and welcome them with an automated customer journey. Email Marketing - Convert leads to customers and increase sales Marketing, SMS and landing pages - Retain customers and serve them with newsletter updates and one-on-one services Messaging capabilities

Transactional emails are essential for conveying important information to your users. ZeptoMail stands out as a dependable and secure platform that ensures these vital emails are dispatched without delay. With its rapid delivery and exceptional inbox placement, ZeptoMail eliminates the frustration of customers having to wait for their messages. These emails, typically triggered by user actions, are anticipated by recipients and should ideally arrive in mere seconds. Choosing the right delivery service is key to maintaining customer satisfaction, ensuring that no one is left anxiously refreshing their inbox for verification codes or password resets. The effectiveness of email delivery is closely linked to the sender's IP address reputation, which makes ZeptoMail a robust solution designed specifically for the nuances of transactional email dispatch. Not only does it excel in speed, but it also ensures that emails land in the correct folders, enhancing user experience. Furthermore, ZeptoMail incorporates industry-standard authentication protocols like SPF and DKIM to bolster security and trustworthiness. By prioritizing these features, ZeptoMail empowers businesses to maintain effective communication with their customers.

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.

Our Drips technology automates customer engagement. Go4Client's Drips feature combines SMS, Voice, Email, Mobile Landing Pages, and Email to communicate with customers. You can map out the customer journey to allow customers to flow through your sales funnel. You can trigger messages through different channels depending on the user's actions.

Customized Customer Messaging Driven by Behavior. Ideal for Your SaaS Platform. Effectively onboard and engage your users through targeted campaigns that respond to their behaviors. Select the optimal communication channel — whether through email or in-app notifications — to provide essential information at crucial moments. Streamline your onboarding process with automated campaigns tailored to user actions. Ensure timely delivery of relevant content. Activate email campaigns automatically in response to user interactions (or lack thereof) within your application. Determine the best medium for each communication: leverage either email or in-app messages. Classify your users according to their behavior patterns. Dispatch individual announcements or promote new features through one-off broadcasts. Utilize pre-designed campaign templates, eliminating the need to begin anew each time. Monitor user profiles effortlessly through a user-friendly admin dashboard. Apply filters or explore individual user profiles in detail, accessing all their interactions and characteristics. This approach not only enhances user experience but also fosters deeper engagement with your product.

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.

-- The email engine you can build on -- We're everything that happens under the hood of your email communications. Reliable Email API with endless capabilities & features ready for integration. Flowmailer's Email Engine provides all the tools you need to build a professional email strategy. From marketing to customer support, from account management to warehousing, every email sent is valuable. Flowmailer is built for continuous high-performance, no matter the emails you're sending. Take away the difficulties of email delivery and focus on creating meaningful email communications with your customers. Email Delivery | SMTP & API | Infrastructure | Transactional Email

Numerous SaaS email services like Mandrill and Brevo offer a variety of features and pricing structures. However, a significant drawback is the necessity to rely on third-party platforms for hosting your inventory. In contrast, opting for a self-hosted solution grants you complete control over your email environment. Are your emails embedded within a monolithic application? Consider utilizing Triton as your dedicated email microservice. This allows you to separate responsibilities, letting you concentrate on your application's development while Triton manages all email-related tasks. When standard functions fall short of your needs, you have the option to customize features. Built on Laravel, Triton boasts a well-structured and clean codebase. You can enhance it on your own or seek our assistance for custom development projects. Additionally, by using self-hosted SMTP servers or affordable options like Amazon SES, you will find that the costs are still lower compared to traditional SaaS offerings, making this a viable choice for many businesses. With Triton, you can achieve not only cost savings but also greater flexibility in your email management.

Direct Mail offers a straightforward and effective solution for quickly sending email notifications and batch emails without requiring users to establish their own email servers. This essential tool supports Alibaba's extensive e-commerce platforms, playing a crucial role during Alibaba's record-setting annual sales events. Each day, tens of millions of emails are dispatched through Direct Mail by both Alibaba and Alibaba Cloud clients, ensuring consistent and high conversion rates across multiple email channels. The system allows emails to be sent via a product console, API interface, or SMTP interface, providing flexibility in usage. For enhanced reliability and scalability, outbound mail redundancy is meticulously maintained across various servers and databases. Users can strategically control mailing frequency, which includes features for registration confirmation, order confirmation, password resets, and transaction notifications. Additionally, it supports promotional campaigns and journal subscriptions, showcasing its versatility as a comprehensive email service solution. With its robust infrastructure, Direct Mail stands out as a vital resource for businesses aiming to optimize their email communication strategies.

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.

Tarvent is an all-in-one email marketing solution designed to streamline campaign management and improve customer engagement through powerful automation. The platform provides intuitive tools for setting up automated email sequences, segmentation, and real-time performance tracking. Tarvent’s dynamic content and A/B testing capabilities help businesses optimize campaigns and drive higher open rates and conversions. With seamless integrations with over 1200 CRM, marketing, and eCommerce platforms, businesses can easily manage their email marketing efforts across different tools. The platform also ensures data privacy and provides features such as automatic list cleaning and suppression rules to maintain email hygiene. Whether for transactional emails or marketing automation, Tarvent offers an accessible and effective solution for businesses of all sizes to improve their email marketing strategy.

Choose the best email SMTP or API for the most robust delivery experience. Netcore Email API, formerly known as Pepipost, provides a powerful transactional inboxing and AI-powered email delivery infrastructure that is reliable, scalable and secure, and at the most affordable price plans. We help brands engage with their customers with the right content at the right time via emails.

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.