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Top Rated Transactional Email Software with A b testing

Last updated: May 2026

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55 software options

Mailgun logo

Mailgun

Transactional email API service for developers

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Mailgun is an email automation service offering a complete cloud-based email service for sending, receiving & tracking email sent through your websites & apps

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Omnisend logo

Omnisend

Drives revenue via automated eCommerce marketing

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Trusted by 150k+ ecommerce businesses, Omnisend’s all-in-one email marketing & SMS tool automates your marketing across the entire customer journey. Build customer relationships & drive sales on autopilot. 1-click integrations with Shopify, BigCommerce, WooCommerce, Wix & more.

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Brevo logo

Automation, marketing & transactional email, and SMS service

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Brevo is a CRM and email marketing solution that helps businesses run multi-channel marketing campaigns across email, WhatsApp, SMS, web push, and Facebook ads. Teams can trigger transactional emails, SMS, and WhatsApp notifications over Brevo SMTP and APIs.

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Selzy logo

Affordable email marketing software

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Selzy is an intuitive email marketing platform that suits any business needs. It offers a wide range of integrations with your favorite tools, an easy-to-use drag&drop editor, and email templates for any occasion.

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SendPulse logo

Email, web push, SMS, chatbots, CRM on one platform

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SendPulse is an all-in-one marketing and sales automation platform for marketers, business owners, industry experts, and eLearning businesses. Our ecosystem includes 10+ audience engagement, communication, and lead generation services and offers an extensive free plan.

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NeoRed logo

Emails that achieve

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An email marketing solution that helps businesses build lists, segment subscribers, create templates, manage responses, and more.

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Ongage logo

An email marketing platform for high-volume email operations

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The Ongage email marketing platform offers capabilities that include email API and everything you need to manage transactional emails at scale. Features include a full analytical suite, advanced segmentation, dynamic personalization, data-driven campaigns management, next-gen SMTP relay, and more.

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ExpertSender logo

Data-driven marketing automation for eCommerce!

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ExpertSender offers a single platform for advanced marketing automation across the most popular email, SMS, mobile and web channels.

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Campaign Monitor by Marigold logo

Cross-channel marketing made simple and stress-free

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Campaign Monitor by Marigold is the leading provider of professional-grade email marketing and automation software for growing businesses

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ReachMail logo

Web-based email message creation and campaign marketing tool

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ReachMail is a web-based email marketing solution designed to meet the needs of small and medium-sized businesses, offering scalable pricing plans and features which include campaign creation and management, social media sharing, custom templates, a survey builder, spam checking, and reporting

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MassMailer logo

Native email sending to unlimited contacts in Salesforce CRM

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MassMailer is a native email solution for Salesforce CRM that enables users to send unlimited emails, drip campaigns, and email alerts, verify mailing lists, build email templates, and more. Features include email address verification, email success monitoring, and content analysis and optimization.

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Enginemailer logo

Cloud-based email marketing and campaign management system

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Enginemailer is a cloud platform for email marketing, transactional emails, and automation – built with AI tools, analytics, and secure integrations.

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Acumbamail logo

Cloud-based tool for email and SMS marketing campaigns

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Acumbamail is a complete tool with Email Marketing, SMS campaigns, and landing pages for companies of all kinds to effectively communicate with their customers between channels, expand their business and improve their conversion rates.

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rapidmail logo

Send your newsletters with rapidmail newsletter software

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Create a newsletter easily: rapidmail is designed for simple and intuitive operation. We want you to create your newsletter fast and without any complications. Use our editor to create your email newsletter.

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Rocketmailer logo

Email marketing software for professional digital messaging

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Rocketmailer is a bulk email marketing solution to create and manage email campaigns and newsletters.

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Mailmodo logo

Email marketing software with templates and AMP emails

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Mailmodo, a new-age email marketing tool, helps you get higher email conversions by adding interactive app-like elements inside emails.

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MDirector logo

All-in-One Digital Marketing Platform

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MDirector automates transactional emails, ensuring personalized and timely communication like order confirmations and updates to boost customer satisfaction, engagement, and trust.

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ePigeon logo

Cloud-based email marketing platform for businesses

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ePigeon is a cloud-based email marketing platform that helps businesses schedule and manage campaigns, edit HTML codes, send tests, and more.

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Maileon logo

Newsletter & marketing automation software

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Maileon is an email marketing and automation solution that allows you to send targeted email campaigns to your customers and develop marketing automations. Benefit from numerous powerful features such as personalized sending times, our recommendation engine, AMP mailing support, landing page editors

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Kasplo logo

Set up professional email campaigns that engage your users.

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Through our SMTP configuration create and set up an API key in minutes. Integrate your website and apps fully with our API infrastructure for hassle-free connectivity and optimum performance.

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Critical Impact logo

Email Marketing Solution for Digital Marketers

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Critical Impact helps businesses deploy marketing campaigns in minutes. Select send options all on one page and then prevent mistakes by seeing a confirmation of all send details. Even test the email across over 100 different device screens from phones to tablets to monitors.

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realcrux logo

Get a personalized dedicated SMTP server with dedicated IPs

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Get a personalized dedicated SMTP server with dedicated IPs designed for your cold email needs.

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Zulu eDM logo

Campaign management and marketing automation software

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Zulu eDM is a multi-channel campaign management software designed to help franchises schedule, track, and manage email and SMS marketing operations. It allows multi-business firms to create brand-specific templates, operate several team accounts, add location-specific content for engaging local subscribers, and more.

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Selligent logo

Multi-channel marketing solution fusing insight & engagement

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Selligent is a multi-channel marketing solution for identifying customers, analyzing behavior across channels, and interpreting data with custom reports

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Magileads logo

Business starts her

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Magileads is an automated sales prospecting & lead generation tool, designed to help sales teams protect & retain leads & transform new prospects into customers. Features include automated emails, reports and analytics, points scoring, prospect targeting, behavioral statistics & CRM integration.

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