Best Transactional Email Services
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Compare the Top Transactional Email Services as of June 2025
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What are Transactional Email Services?
Transactional email services provide a way to send automated emails triggered by specific events like customer signups, purchases or password resets. They are used as a means of communication for companies and organizations to quickly send personalized messages to customers. Customers can receive emails such as receipts, invoices, shipping notifications, order cancellations and other updates through transactional email services. Transactional emails often offer an efficient way to let customers know about their account activities without manual intervention from the company. Compare and read user reviews of the best Transactional Email services currently available using the table below. This list is updated regularly.
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1
Critical Impact
Critical Impact
Critical Impact allows you to enhance and simplify your email marketing campaigns. Our tools let you effectively manage your email and SMS lists, send personalized and automated emails, along with text messages (SMS) for your marketing campaigns all at a competitive price model. Our subscriber scoring algorithms will mine your data to quickly identify those subscribers who are most likely to read your next email, consume additional emails, or make another purchase. With our easy-to-use interface, you can schedule messages to send in minutes. Select your send options all on one page, and then prevent mistakes by seeing a confirmation of all your send details. Even A/B test your email across device screens – from phones to tablets to monitors. -
2
emfluence Marketing Platform
emfluence
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, advanced personalization in email marketing, social media management, timely SMS marketing, high-converting landing pages, comprehensive automated reporting, website tracking, lead scoring, a centralized marketing calendar, and more. Experience the perfect balance of usability and functionality with the emfluence Marketing Platform, and take your marketing to the next level.Starting Price: $1,000/month -
3
SMTP.com
Ziff Davis
Reliable SMTP relay and email delivery services. Powerful email delivery services that enable you to send and track high volume emails effortlessly. Integrate and start sending in minutes. All your transactional, email relay and email delivery needs under one roof. Whether you need a low-latency email delivery provider for your transactional emails, scalable infrastructure for high-volume sends or reliable backend solution for your marketing campaigns, SMTP is built to deliver. Reputation Defender is SMTP’s proprietary technology that uses big data to proactively monitor your email list health and safeguard your domain and IP reputation among ISPs by suppressing bad emails in your sends from hard and soft bounces. This ensures your delivery rates and inbox placement incrementally gets better over time.Starting Price: $25 per month -
4
ClickSend
ClickSend
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.Starting Price: $20 minimum topup -
5
Selzy
Selzy
Selzy is an ecosystem of easy-to-use marketing automation tools that helps small and medium businesses grow. From list growth and crafting a perfect email to segmentation, automation, A/B testing, and analytics, Selzy covers it all. - Launch your first campaign in less than 15 minutes: use smooth drag-and-drop email builder, 140+ goal-oriented templates, and AI writing assistant - Anti-spam email checker: have every email rated and get personalized tips to improve deliverability - Grow your list with customizable pop-up forms - Connect your favorite tools: Shopify, WordPress, Woocommerce, Airtable, Salesforce, HubSpot, Pipedrive, and so much more - Get 24/7 help from our support team (real humans with top-notch email marketing experience).Starting Price: $7 per month -
6
Brevo
Brevo
Say hello to Brevo (formerly Sendinblue) — the platform that helps you build customer relationships across Email, SMS, Chat, and more. The complete toolkit to turn one-time browsers into long-term customers. Connect with contacts directly in their inbox with beautifully designed email campaigns. Send targeted messages that land straight in your customers' pockets. Brevo empowers businesses to build and grow relationships through marketing automation, email campaigns, transactional emails and SMS messages. What makes us different? Brevo is powered by our world-class customer happiness team and we offer pricing plans guaranteed to make you smile. Our platform combines a robust suite of services within a single, user-friendly solution. Happy Sending!Starting Price: €25 per month -
7
SendGrid
Twilio SendGrid
Email is the backbone of your customer engagement. The Twilio SendGrid Email API is the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. Our flexible 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. Monitor engagement data and optimize deliverability with our Deliverability Insights dashboard. Whether you’re sending 100 emails or 100 billion, SendGrid is built to scale. Integrate with our RESTful APIs and SMTP in minutes, with sample code libraries available in 7 languages, interactive docs, templates, and more.Starting Price: $19.95 per month -
8
turboSMTP
turboSMTP
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. Monitor engagement data and optimize deliverability with our comprehensive reporting tools. Trust TurboSMTP to deliver your emails reliably and efficiently, empowering you to engage with your audience.Starting Price: $14.95 per month -
9
Bird
Bird
Bird (formerly MessageBird) is the next-generation CRM for Marketing, Sales, and Payments, powering over 5 trillion annual messages across Email, SMS, and WhatsApp. Leading brands grow cost-efficiently with Bird through personalized interactions on Email, SMS, and WhatsApp. The world's most innovative companies build communication solutions using Bird's applications and APIs. Get started today and talk to your customers over any channel, for any use case, anywhere in the world. Marketing messages, push notifications, order updates, delivery alerts and more. Operational bottlenecks slowing your growth? Use automated conversations and workflows to collect critical information up front, reduce manual tasks, implement self-service flows, and route chats to the right agent. Get up and running in minutes on our reliable, auto-scaling APIs with extensive documentations, complete API references and intuitive SDKs.Starting Price: $45 per month -
10
inwise
inwise
inwise is an all-in-one AI-powered marketing cloud tool designed to help businesses grow and connect with their audience. It simplifies direct marketing by offering features like popups, signup forms, and automated customer journeys to attract, engage, and convert leads into customers. With inwise, businesses can manage email marketing, WhatsApp & SMS campaigns, landing pages to boost sales, while also retaining customers through newsletters and personalized messaging. Trusted by thousands of businesses worldwide, inwise ensures data security with both on-premise and SAAS solutions, offering seamless integration with your existing dataStarting Price: $18.00/month -
11
TouchBasePro
TouchBasePro
Our Email Marketing platform has all the tools you need to become an email marketing pro. Check out our many features like transactional emails, workflows, automations and different campaign types to see what we mean. Our campaign builder allows you to design stunning emails, like a pro. Creating an effective campaign requires that you have the right tools for the job. An email marketing and digital strategy expert will learn the ins and outs of your business, existing email program and identify your campaign goals. We will then analyze and perform an audit of your current marketing and database growth strategy, along with your current email program to identify key areas of improvement. We will set up a consultation to review the critical areas of improvement, best practices, examples and how we propose to work alongside your business to win. Receive an in-depth guide on the way forward and how we will help create high-value, low-cost ways to achieve your goals.Starting Price: R259 per month -
12
ZeptoMail
Zoho
Your transactional emails carry crucial information. ZeptoMail is a reliable and secure service that delivers these all-important emails instantly. With high-speed delivery and great inbox placement, ZeptoMail means you no longer keep your customers waiting. Transactional emails are unique emails that are usually triggered by some user action. More often than not, your customers are expecting these emails in their inbox within seconds of the trigger action. Pick the right delivery service and keep your customers happy. Your users will no longer be left refreshing their inbox for their email verification code or password reset emails. Email deliverability is a consequence of the reputation of the sender IP address. ZeptoMail is built exclusively to tackle the challenges of sending transactional emails. Delivery is good. Delivering to the right folder is crucial. ZeptoMail supports industry-standard authentication mechanisms such as SPF and DKIM.Starting Price: $2 per credit -
13
Everlytic
Everlytic
Everlytic’s bulk messaging and automation platform enables you to: - Grow your marketing lists - Create personalized emails, texts + more - Track message engagement Want to help your customers feel more connected to your brand? Of course you do! Because connected customers buy more from you, more often. Personalized automated marketing is the key. That’s why we created a single platform for sending hyper-personalized emails, text messages, voice broadcasts, and push notifications – easily, automatically and at scale. Leading companies trust Everlytic to get more messages into more inboxes. Everlytic simplifies the building of superior customer journeys that target and engage people with relevant, on-time messages. Messages that resonate. You get real-time insights into how your audience interacts with your content – and the power to connect with the right people and convert them at the right time. -
14
EmailLabs
Vercom
EmailLabs is part of the Vercom S.A Group, which implements technology solutions in the CPaaS model. We are a cloud SMTP server infrastructure: Cloud SMTP & Email API. With years of experience in sending to the most informed senders, we can make a measurable contribution to building email reputation and improving deliverability. We take care of standardization and security of both marketing, transactional and system messages of our customers. Thanks to the in-depth knowledge of our experts, we are able to prepare the infrastructure to ensure appropriate throughput and increase the sending speed for any market and any mailbox provider. Plug EmailLabs into your transactional sends - start sending in less than 5 minutes.Starting Price: Free -
15
Amazon SES
Amazon
Amazon Simple Email Service (SES) is a cost-effective, flexible, and scalable email service that enables developers to send mail from within any application. You can configure Amazon SES quickly to support several email use cases, including transactional, marketing, or mass email communications. Amazon SES's flexible IP deployment and email authentication options help drive higher deliverability and protect sender reputation, while sending analytics measure the impact of each email. With Amazon SES, you can send email securely, globally, and at scale. Using either the Amazon SES console, APIs, or SMTP, you can configure email sending in minutes. Amazon SES also supports email receiving, enabling you to interact with your customers at scale. Regardless of use case or sending volume, you only pay for what you use with Amazon SES.Starting Price: $0.10 per month -
16
Userlist
Userlist
Behavior-Based Customer Messaging. Perfect for Your SaaS. Onboard and engage your SaaS users with targeted behavior-based campaigns. Choose the right channel — email or in-app messages — to deliver the right information when your users need it the most. Onboard your users with automated behavior-based campaigns. Deliver the right information at the right time. Trigger automated email campaigns based on what users do (or don’t do) in your product. Choose the right channel for each message: deliver via email or in-app messages. Segment your users based on their behavior. Send one-off broadcasts to make announcements and promote new features. Use built-in campaign templates, so that you never have to start from scratch. View your user profiles in a simple admin dashboard. Add filters or dive straight into user profiles one by one, where you can see all their events and properties.Starting Price: $99 per month -
17
MailerSend
MailerSend
MailerSend is a new kind of transactional messaging service designed for developers to work faster and smarter. Intuitively designed so anyone can contribute to transactional email and SMS, while a powerful sending infrastructure and flexible payment plans let you scale your sendings quickly. Built by deliverability experts, and with the inbuilt email verification tool, you can rest easy knowing your messages will get delivered. Plus, inbound routing allows customers to interact with your messages. Try it for yourself! Get started for FREE with 3,000 messages per month, then only pay for what you send. No contracts! The free plan has the features you need, including always 24/7 technical support.Starting Price: $30 per month -
18
Sweego
Mindbaz
Sweego is a multichannel notifications platform for developers. Sweego allows users to send transactional, engagement, and CRM messages through channels like email and SMS. We are working to add another channels like push (web & mobile) notifications, in-app notification, voice notifications and more. The platform provides APIs and webhook system to integrate notifications and messaging capabilities into applications. (SAAS, Mobile, Desktop, whatever...) With our email builder, you can create your template easily with drag and drop fonctionnality, HTML import, good email client compatibility, brand management, etc... Key features include message templates, email authentication, webhooks, sandbox testing for emails, statistics, logs and scalability.Starting Price: €10/month -
19
Postmark
ActiveCampaign
ActiveCampaign Postmark is the email delivery service that developers and product teams actually like. Send transactional and marketing emails and get them to the inbox, every time. Postmark maintains one of the best delivery reputations in the industry by routing transactional and promotional messages through parallel but separate sending infrastructure.Starting Price: $10/month for 10,000 emails -
20
Flowmailer
Flowmailer
-- 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. Where others choose to focus on an email's looks rather than its performance - we opt for solid email deliverability first. Every email that hits the inbox is a valuable moment between you and your customer. Email Engines change the way we send emails. Ready to create the unparalleled email experience your customers deserve?Starting Price: €89 per month -
21
Alibaba Cloud Direct Mail
Alibaba Cloud
Direct Mail is a simple and efficient service to send email notifications and batch email quickly and efficiently without the need to build your own email server. Direct Mail is a key product for serving Alibaba's own e-commerce platforms, which includes servicing Alibaba's record-breaking annual sales festival. Tens of millions of emails are sent every day through Direct Mail by Alibaba and Alibaba Cloud customers. Direct Mail guarantees stable and high conversion rates across various mail channels. Emails can be sent with the product console, API interface, and SMTP interface. Outbound mail redundancy is stored on multiple servers and databases to provide stability and scalability. Control mailing frequency with strategic mailing functionality. Includes registration confirmation, order confirmation, password reset, transaction notification, and more. Includes product promotions, journal subscriptions, and more.Starting Price: $1.99 per six months -
22
Courier
Courier
Notifications are hard. They require infrastructure that is reliable, scalable and observable as well as an end user experience that is helpful and respectful. Drag and drop content blocks, add your own custom code, or do a mix of both. Trigger notifications based on user actions, while respecting their preferences and your rules. Quickly access relevant cross-channel stats including delivery status and engagement data. Prioritize your channels and use both conditional logic and user preferences, to control who sees what, when, and through which channel. With just one easy-to-use API, you can access client libraries written in the most popular programming languages, and deploy notifications faster with cleaner code.Starting Price: $.005 per notification -
23
Resend
Resend
We are a team of engineers who love building tools for other engineers. Our goal is to create the email platform we've always wished we had — one that just works. Receive real-time notifications directly to your server. Every time an email is delivered, opened, bounces or a link is clicked. Simulate events and experiment with our API without the risk of accidentally sending real emails to real people. Simulate events and experiment with our API without the risk of accidentally sending real emails to real people. Rely on a platform of reputable IPs used by trustworthy senders with distributed workloads across different IP pools. Get a fully managed dedicated IP that automatically warms up and autoscales based on your sending volume, with no waiting period. Get a fully managed dedicated IP that automatically warms up and autoscales based on your sending volume, with no waiting period.Starting Price: $20 per month -
24
Maileroo
Maileroo
At Maileroo, we provide a powerful platform for both SMTP relay and email marketing. We ensure fast, reliable email sending with real-time tracking of deliveries, clicks, opens, and bounce rates. With our free Email Verification API, dedicated IPs, and DNS Records for sender authentication, we help reduce bounced emails and improve deliverability. Our email marketing platform makes it easy to create and manage campaigns. You can personalize emails, use our drag-and-drop email templates, form builders, and flexible Contacts API. We provide real-time statistics and in-depth analytics to help you optimize your campaigns and boost engagement. We also offer seamless DNS setup, automation tools, multi-sender identities, and efficient contact management. Whether you're a small business or growing enterprise, Maileroo offers budget-friendly pricing and everything you need to scale your email marketing, making it a smart choice for businesses of all sizes.Starting Price: $10 per month (25,000 emails) -
25
Tarvent
Tarvent
Tarvent makes email marketing and automation easier than ever. We are designed to be the easiest and most intuitive email marketing platform available, offered at a price everyone can afford. Tarvent simplifies advanced automation for marketers at all skill levels, helping businesses automate their processes, with 95% of our customers finding automations invaluable. Customers describe our interface as intuitive and the platform as simple and user-friendly, noting it's a powerful, affordable alternative to others. Our support is second to none, with 99% customer satisfaction, described by users as "great support," "stellar support," and "responsive support". Customers who switched from other platforms found our campaign builder, contact tools, and automation outshine competitors. Choose Tarvent for an intuitive, powerful, and affordable solution for all your email marketing and automation needs.Starting Price: $16/month -
26
SocketLabs
SocketLabs
SocketLabs is a reliable email delivery engine built designed to help companies of all sizes send marketing and transactional email fast and easy. Trusted by leading organizations such as Virgin and the American Red Cross, SocketLabs combines a feature-rich outgoing mail server delivery solution, an easy-to-use dashboard interface, and an even easier setup. It also features outgoing mail servers, advanced analytics, and top notch customer support. -
27
Netcore Email API
Netcore
Choose the best email API or SMTP for the most robust email delivery experience. Netcore Email API (formerly known as Pepipost) provides a powerful transactional email delivery infrastructure and AI-powered inboxing which is reliable, scalable, secure and easy-to-use, at the most affordable pricing plans. We help brands to engage with their customers at the right moment with the right content over emails.Starting Price: $25 per month -
28
iPost
iPost
Finally, an email platform that is built for marketers by marketers. The easiest, most flexible, and dynamic marketing automation solution for your email and mobile needs. Tired of legacy platforms that are too expensive, too hard to learn, or that you’ve outgrown? You’re not alone. iPost has the tools you need. Plus the platform is easy to learn and flexible enough to adapt as you grow. The iPost email platform was built to fit the needs of today’s marketers with the scalability and features needed to grow with marketers of the future. iPost brings powerful features to email marketing with technology that is responsive, flexible, and easy to use. Real-time data to fuel audience discovery, targeting, and personalization. Intuitive reporting, from campaign, trends, to funnel and conversion tracking. Drag and drop personalization, dynamic content, and code-free design tool. Check why iPost is a recognized as a leader in The Relevancy Ring 2019 Enterprise ESP Buyers Guide. -
29
TeleSign
TeleSign
Deliver timely, personalized information through global SMS/RCS and voice cloud communications. Gain a deeper understanding of your customers from actionable global phone number and subscriber data intelligence. Code once and message your customers at scale using TeleSign’s Messaging API - complete with waterfall delivery between channels. TeleSign Messaging API includes SMS, RCS, and WhatsApp to help you build secure digital communications that connect you with your customers anywhere in the world. Integrate a single Messaging API and start sending reliable, secure SMS, RCS and WhatsApp messages to your customers today. Choose one or all three channels to broaden your programmable messaging strategy and expand your audience. Reach more customers with 120+ optimized points-of-presence and 700+ direct-to-carrier routes. -
30
Aritic Mail
Aritic
Deliver emails on time to the public & business mailboxes. Monitor the email-sending operations of your organization through real-time domain & IP monitoring. With our API, start sending transactional email notifications within minutes. Through robust cloud API and webhook, process inbound emails, track clicks, and handle operations effectively. Aritic Mail delivers transactional emails to your customers on time, always with high email delivery speed. Trust Aritic Mail to deliver transactional emails instantly with zero-lag in email delivery speed and inbox placement. Cloud-based Aritic Mail email server makes email delivery possible instantly, along with constant email delivery monitoring. Leverage Aritic Mail API, built for almost all programming languages, to seamlessly use with any stack. Deliver all of your organization emails through Aritic Mail and manage your email sending reputation.
