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Top Rated Transactional Email Software with A b testing - Page 2

Last updated: May 2026

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55 software options

SendPost logo

Cloud-based email verification platform.

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SendPost provides an Email API and SMTP relay for developers, software businesses, and ESPs with tools, expertise, and support needed to reliably deliver, measure and optimize transactional emails.

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360NRS logo

360nrs is a customer messaging platform SMS, Email, WhatsApp

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360nrs is an omnichannel messaging platform that helps businesses create, automate, and manage customer communications across SMS, Email, WhatsApp, and Voice—supporting personalized, scalable campaigns and transactional notifications from a single interface.

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Aritic Pinpoint logo

Marketing automation platform for SME & mid-enterprise

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Aritic platform is a full-stack automation platform that includes marketing automation, communication automation, CRM application, service desk application and business automation stack designed for B2B companies. The Aritic platform has five major products under its wings.

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SocketLabs logo

Marketing & transactional email delivery platform

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SocketLabs is a marketing & transactional email delivery service with features for sending, receiving, & tracking the success of emails and recipient engagement

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EmailDelivery.com logo

Self-hosted email marketing for enterprise & small business.

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EmailDelivery.com is a self-hosted email marketing platform that comes with a proprietary MTA included for sending over your own IP addresses, and also supports SMTP Relay and APIs such as Amazon SES, Mailgun, and Sparkpost.

White label ready for agencies & resellers

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Mailsoftly logo

Send personalized emails and get higher response rates!

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Send important emails—like receipts, alerts, and password resets—fast, reliably, and without headaches.

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Dyspatch logo

Create beautiful, customized email templates without code.

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Dyspatch is an email production platform that helps email teams of all sizes create customized emails templates without needing to code.

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iPost logo

An email platform for the modern marketer.

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iPost is an email marketing software designed to help marketers manage email campaigns, audience targeting, customer segmentation, and workflow creation. The drag-and-drop design tool lets users move email elements onto pre-existing branded templates and edit them according to requirements.

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Custobar logo

Marketing automation and customer data management software

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Custobar is a cloud-based marketing automation platform designed to help businesses of all sizes create, launch, and manage marketing campaigns. The platform enables organizations to gather and store data about sales, marketing, communication, and customer services from multiple sources on a unified portal for future reference.

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Cheetah Digital logo

Enterprise Multi-channel Campaign Management

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With Cheetah Digital, no list is too big, no data too complex. Put your data to use by letting it drive the action to better engage with your audience and cultivate their loyalty.

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Enabler logo

Enterprise Email Automation: Smart Nurture for Insurance.

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Automate mission-critical insurance emails with Enabler. Deliver instant quote confirmations, policy documents, and renewal alerts with 100% brand consistency. Use our dynamic data engine to inject real-time CRM details into every message, ensuring secure, high-volume delivery you can trust.

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JangoMail logo

Cutting Edge Email Technology

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JangoMail is a web-based email service platform for businesses and organizations of all sizes.

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Mailchimp logo

Email and SMS marketing automation platform

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Mailchimp is an email and SMS marketing platform that combines artificial intelligence with marketing automation capabilities. The platform features a drag-and-drop builder, content creation tools, and audience management functions to help businesses design and distribute marketing campaigns across multiple channels.

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MailUp logo

Email, SMS and Messaging Apps marketing solution

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MailUp is an email and SMS delivery solution. The software allows users to send and design their own promotional, newsletters, transactional emails and SMS, and features database management, email and SMS automation, landing page management, API and integrations, and more.

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Sailthru logo

Marketing automation for media & publishing and retail.

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Sailthru by Zeta is a marketing automation software and multi-channel personalization tool that serves media and retail brands. The software allows you to personalize customer experiences on every channel, including email, website, and mobile.

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Maropost logo

Omnichannel campaigns that get results

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Maropost empowers businesses to scale and boost revenue with an easy-to-use marketing automation solution that enables users to hyper-segment their audience and rapidly create marketing campaigns that distinguish them from the competition.

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emBlue logo

Integrate channels, become omnichannel

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Segment your audience based on interests, activity in your campaigns, or behaviors on your website. Then, create effective remarketing campaigns and increase your results.

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ROUTEE logo

Unified communications & transactional emails

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Routee is an email platform, SMTP & email API, based on the chain of responsibility first to make sure your transactional email always reaches its destination. Unlimited contacts without monthly subscriptions. Get access to all of the PRO email features from your first email & forever free of charge

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Inxmail logo

Email marketing software to create newsletters & emails

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Inxmail is the service-oriented tech specialist for secure, data-driven communication in email marketing.

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MailerSend logo

Transactional messaging service built for the whole team

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MailerSend is a transactional messaging service that enables developers to work faster and smarter.

An advanced sending infrastructure and flexible payment plans let you scale your sendings, plus Premium plans include dedicated IP, sender identities and 24/7 support for a comprehensive solution.

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SparkPost logo

Predictive email intelligence solution with analytics

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SparkPost is an email analytics solution designed to help businesses optimize email performance, deliverability, engagement, and more. It offers predictive intelligence, which allows marketers to gain insights into campaign health, engagement rate, and spam links to diagnose performance issues.

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Emma by Marigold logo

Multi-channel marketing that works for you.

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Emma by Marigold is an email marketing platform which focuses on segmentation, automation, and an easy-to-use email builder for teams of all sizes to leverage their customer data, increase engagement, and drive more revenue from email. Users can create and collaborate on email campaign content.

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Constant Contact logo

Streamlines marketing to grow loyal audiences

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Constant Contact is a digital and email marketing platform that provides tools for creating, sending, and tracking email campaigns. The platform offers customizable email templates, AI writing assistance, and automation features to help businesses reach audience. Additionally, it includes social media marketing capabilities, SMS marketing, and multi-account solutions for organizations managing multiple locations or teams.

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Mailjet logo

Marketing Email, Transactional Email, Transactional SMS

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With GDPR-compliant infrastructure and proven deliverability, Mailjet is the best Email Marketing Software & Email API for Teams. Marketers design, deliver, and automate email newsletter while developers power transactional email via robust API platform.

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GetResponse logo

Convert more customers. Keep them coming back.

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An email marketing tool that helps business owners build permission-based mailing lists, maximize conversions with email automation and responsive design and create a landing page. GetResponse features include video email marketing, email-to-speech, and a custom form builder.

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