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Top Rated Transactional Email Software with Open source - Page 5

Last updated: September 2026

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128 software options

Deployteq logo

Data-driven customer journeys across multiple channels.

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Deployteq is a marketing automation platform that unifies customer data and allows marketers to easily create personalised customer journeys across multiple channels including email, SMS, mobile and social media. Deployteq is trusted by brands such as Wickes, Marstons, Center Parcs & more.

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Tarvent logo

Connect. Automate. Convert.

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Tarvent is an email marketing and automation platform that simplifies advanced personalized marketing for businesses. The platform offers features like email campaigns, marketing automation, transactional email, and an email API, allowing users to manage email marketing efforts from a unified platform.

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Cloud Messaging Stack logo

Online marketing freedom for everyone

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Flexible, resilient, and secure, Upaknee’s Campaign Manager is a low cost and feature-rich online communications platform, boasting one of the best deliverability rates in the industry. Our intuitive and comprehensive platform allows you to create and send professionally designed email campaigns, segment contact lists, test campaigns, track customer engagement, and so much more, all of which is backed by a robust infrastructure and a dedicated support team.

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Camms GRC logo

Cloud-based GRC platform for risk and assurance.

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Camms (GRC) is a cloud-based governance, risk, and compliance (GRC) solution that helps businesses in healthcare, manufacturing, construction, and other industries manage workplace health, internal and external audits, third-party risks, and more. The platform offers a suite of tailored solutions to address an organization's priorities. This includes integrated risk management, cyber and IT risk management, compliance management, social and governance (ESG) planning, and more.

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Elastic Email logo

Modern email communication platform for small businesses.

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A modern email marketing and delivery platform for small businesses to manage emails, as well as team and customer communication.

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Sweego logo

Transactional email and SMS with inbound email routing

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Sweego is a developer-centric platform for transactional messaging. Send emails via API or SMTP, deliver SMS through a unified interface, and process inbound emails as structured JSON via webhooks. Designed for automation, reliability and seamless integration.

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Dynosend logo
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Customer experience automation platform

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Dynosend helps businesses engage their customers with email marketing, marketing automation and contact CRM.
Send data-driven emails, sms, webhooks and slack messages in one place.

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magnews logo

Magnews is the solution for managing customers

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Magnews is a solution for managing the customer journey and improving customer value,starting from overall strategy definition, journey design to single activities and campaign execution in a continuous cycle of measurement and improvement.

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Helpmonks logo

Shared inbox solution

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Helpmonks is a team email management solution which supports an intelligent collaborative email management approach by enabling users to control and prioritize team emails by assigning them. The platform is also designed to transform the team’s email inbox into a powerful sales tool.

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Freshmarketer logo

Conversation rate and marketing management software

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Freshmarketer is an all-in-one conversion rate optimization (CRO) hub designed to help businesses and marketing agencies convert website visitors into customers

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MessageGears logo
(0)

Data activation and engagement

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MessageGears is the data activation and engagement platform that helps enterprises harness their data by streamlining the tech stack.

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Shipmail logo
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Email platform with AI and custom domains

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Shipmail is a business email hosting service offering custom domain email addresses, integrated calendars, newsletters, and booking pages. It features a unified dashboard for managing multiple mailboxes, shared inboxes for team collaboration, and IMAP support for email clients. Shipmail includes an AI assistant for drafting responses, message management, and a developer API for mailbox creation and transactional email sending.

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Aument logo
(0)

Always on email + SMS marketing for Shopify stores

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For ecommerce that want to grab attention, Aument holds it. Always-on email and SMS marketing.

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Dotdigital logo

Cross-channel customer engagement platform

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AI-powered marketing automation software that helps businesses worldwide create, send and report on cross-channel marketing campaigns.

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Customer.io logo

Transforms data into tailored customer journeys.

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Customer.io is a data-driven customer engagement platform enabling businesses to create personalized journeys across channels. It features a visual workflow builder for automating messages, omnichannel support for email, SMS, push, and in-app communications, and robust data integration. Customer.io uses first-party data and AI insights to deliver targeted messaging while ensuring compliance with GDPR, HIPAA, and SOC 2 Type II standards.

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MoEngage logo

An Insights-led Customer Engagement Platform

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MoEngage is an insights-led customer engagement platform for consumer brands, that empowers marketers and product owners with AI-driven insights to create cross-channel experiences that consumers love.

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Act-On logo

Growth marketing automation platform

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Act-On Software is the growth marketing automation leader that offers solutions empowering marketers to move beyond the lead and engage targets at every step of the customer lifecycle.

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Campaign logo
(0)

Email and SMS marketing automation platform

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Campaign Dolist is an email and SMS marketing platform that enables organizations to design and manage multichannel communication campaigns. The platform features marketing automation capabilities, audience segmentation tools, and a drag-and-drop email builder for creating responsive messages and landing pages without technical knowledge. It centralizes contact data from multiple sources including CRM, e-commerce, and ERP systems through API integration and secure data transfer methods.

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Yonoma logo
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Email Automation Platform for Growing SaaS Companies.

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Email automation platform to help SaaS companies to send better emails, automate user journeys, track performance and grow faster.

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Blazly logo
(0)

AI-powered platform for SEO and lead generation

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Blazly AI is a growth platform powered by artificial intelligence, combining tools for SEO, generative optimization, social media management, backlink building, and lead conversion. It automates keyword research, content creation, and publishing workflows with one-click integration for WordPress, Webflow, and Shopify. Features include automated social media distribution, backlink tracking, and a conversational lead engine to capture and convert visitors.

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Marigold Liveclicker logo
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Give customers what they want - at the time of open.

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Purpose-built to make your emails more interactive, personalized and timely, Liveclicker by Zeta is the ultimate companion for your email marketing solution. We’ll help you amplify engagement, increase clicks and cultivate loyalty with a robust selection of real-time personalization features.

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ExpressPigeon logo

Email marketing solution for small and medium businesses

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ExpressPigeon offers an interactive email marketing solution to help SMBs create, send and track professional emails with customers

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JetSend logo
(0)

Transactional email management platform

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JetSend is a transactional email management solution that allows businesses to send, track, and manage email campaigns. The platform also offers suppression list management with built-in compliance measures to ensure all communication are GDPR compliant.

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OpenText Core Messaging logo
(0)

Cloud communications platform

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OpenText Notifications is an omnichannel communications software that provides a unified platform for messaging and collaboration for businesses.

It allows users to send messages to their teams in real time as well as schedule them for future delivery. Users can also receive emails or SMS messages.

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Everlytic logo
(0)

Bulk communication platform

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Empower your business software to automatically trigger and personalize business-critical emails and text messages to customers when they transact with your organization – all via a restful API or SMTP relay.

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