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Transactional Email Software - Page 3

Last updated: April 2026

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75 software options

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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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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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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Spotler SendPro logo

The Email Engine

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We're everything that happens under the hood of your email communications. Reliable, scalable Email API with endless capabilities & features ready for integration.

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ClickSend logo

Business Communications. Solved

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ClickSend is designed to help businesses send and receive SMS, MMS, voice, email, direct mail, and more within a single platform. Whether it is an SMS blast via the dashboards or automated texts via API, it lets users choose a global SMS gateway and get access to a full communications suite.

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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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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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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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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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SendGrid logo

Delivers reliable email at scale for businesses

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SendGrid is a solution that provides a cloud-based email infrastructure to help relieve businesses of the cost and complexity of maintaining custom email systems. It provides email delivery, scalability and real-time analytics along with APIs. The platform also offers SMTP service, email validation, deliverability insights, and dynamic templates, while supporting multiple programming languages including Node.js, Python, and Java.

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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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Zoho ZeptoMail logo

Transactional Email Sending Service

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ZeptoMail is a transactional email sending service.

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CRM in Cloud logo

Cloud-based software for managing sales and marketing

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CRM in Cloud is a cloud-based customer relationship management software designed for small and medium-sized businesses. It provides a 360-degree view of your business and customer network, allowing you to manage email, leads, marketing activities, and monitoring.

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Campaigner logo

Powerful Email Marketing & Automation platform

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Advanced yet easy-to-use email marketing platform featuring automation workflows, contact segmentation, multivariate experiments and A/B split testing, drag & drop and HTML email editors, pre-built templates. conversion tracking and real time reporting.

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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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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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APSIS One logo

Gather data. Automate customer journey. Grow your business.

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APSIS One is an easy-to-use platform for Email, Marketing Automation, SMS, Website Personalisation, E-commerce and more. All you need to improve results, increase retention, and grow your business.

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SMTP logo

Transactional and Email Relay API

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On-demand scale and unmatched deliverability. Whether it's thousands of emails per month or millions, our customers count on us for timely sending and industry-leading deliverability.

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AcyMailing logo

A newsletter and email marketing plug-in.

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With AcyMailing, website operators have the opportunity to personalize their newsletter and email campaigns via WordPress and Joomla. This extension offers tools for creating content based on templates to optimize marketing processes.

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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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JetSend logo
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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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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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Lettr logo
(0)

Cloud-based transactional email API for artisans

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Lettr is a transactional email platform with HTTP API + SMTP relay, real-time webhooks, analytics, and a visual template editor with version history and a draft/publish workflow for teams.

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Pingram logo
(0)

Simple APIs for email, SMS, AI voice, and WhatsApp.

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Pingram (formerly NotificationAPI) is a communications API for email, SMS, voice, and WhatsApp. Built-in infrastructure, A2P 10DLC, and voice AI let developers ship faster with a single, simple API.

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Marigold Liveclicker logo
(0)

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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