--- title: "Best Transactional Email Software 2026 | Capterra" description: "Find the top Transactional Email software of 2026 on Capterra. Based on millions of verified user reviews - compare and filter for whats important to you to find the best tools for your needs." source_url: "https://www.capterra.com/transactional-email-software/" page_type: "category" language: "en" --- # Best Transactional Email Software [Free](https://www.capterra.com/transactional-email-software/s/free/)[For Small Businesses](https://www.capterra.com/transactional-email-software/s/small-businesses/) [4.3 (93)](https://www.capterra.com/p/175783/ClickSend/reviews/) Send targeted messages whenever your customers complete an action by integrating with the ClickSend Transactional Email API. [Learn more about ClickSend](https://www.capterra.com/p/175783/ClickSend/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [4.3 (197)](https://www.capterra.com/p/159630/Mailgun/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) Transactional emails are emails triggered by a user's actions within an application or website, maintaining customer relationships. [Learn more about Mailgun](https://www.capterra.com/p/159630/Mailgun/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [4.7 (837)](https://www.capterra.com/p/153508/Omnisend/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) Omnisend is an email and SMS marketing platform for ecommerce brands to grow sales with automation, popups, and segmentation. [Learn more about Omnisend](https://www.capterra.com/p/153508/Omnisend/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 85% recommend this product [4.8 (6)](https://www.capterra.com/p/237293/InboxAlly/#reviews) InboxAlly helps repair and protect your email sender reputation and ensure your emails are delivered in the inbox. [Learn more about InboxAlly](https://www.capterra.com/p/237293/InboxAlly/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## Brevo](https://www.capterra.com/p/132996/brevo/) [4.6 (3525)](https://www.capterra.com/p/132996/brevo/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) Brevo, is the leading customer relationship management (CRM) suite. [Learn more about Brevo](https://www.capterra.com/p/132996/brevo/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 86% recommend this product [## Constant Contact](https://www.capterra.com/p/31898/Constant-Contact/) [4.3 (2953)](https://www.capterra.com/p/31898/Constant-Contact/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) We deliver the tools to simplify and amplify digital marketing and drive results for your business. [Learn more about Constant Contact](https://www.capterra.com/p/31898/Constant-Contact/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## SendPulse](https://www.capterra.com/p/146369/SendPulse/) [4.6 (773)](https://www.capterra.com/p/146369/SendPulse/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) Send transactional emails via SMTP or API. See detailed stats about opens, clicks and unsubscribes. Send 12,000 free emails each month. [Learn more about SendPulse](https://www.capterra.com/p/146369/SendPulse/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 83% recommend this product [## SendGrid](https://www.capterra.com/p/204113/SendGrid/) [4.2 (755)](https://www.capterra.com/p/204113/SendGrid/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) Twilio SendGrid is the leading cloud-based email delivery platform, trusted by the world's fastest-growing brands. [Learn more about SendGrid](https://www.capterra.com/p/204113/SendGrid/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## GetResponse](https://www.capterra.com/p/153948/GetResponse/) [4.2 (527)](https://www.capterra.com/p/153948/GetResponse/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) Order confirmations, receipts, reminders, and marketing emails in one place so you can keep customers informed—and ready to buy again. [Learn more about GetResponse](https://www.capterra.com/p/153948/GetResponse/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## Campaign Monitor by Marigold](https://www.capterra.com/p/76928/Campaign-Monitor/) [4.5 (506)](https://www.capterra.com/p/76928/Campaign-Monitor/reviews/) Campaign Monitor by Marigold is an email marketing tool that enables anyone to send beautiful, targeted, and effective email campaigns. [Learn more about Campaign Monitor by Marigold](https://www.capterra.com/p/76928/Campaign-Monitor/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## Mailjet](https://www.capterra.com/p/130105/Mailjet/) [4.2 (456)](https://www.capterra.com/p/130105/Mailjet/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) The best email marketing software that’s built for devs and loved by marketers [Learn more about Mailjet](https://www.capterra.com/p/130105/Mailjet/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## Campaigner](https://www.capterra.com/p/266291/Campaigner/) [3.9 (428)](https://www.capterra.com/p/266291/Campaigner/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) All the basic and advanced email marketing features you need to grow your business without added marketing suite expense. [Learn more about Campaigner](https://www.capterra.com/p/266291/Campaigner/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## Act-On](https://www.capterra.com/p/103468/Act-On/) [4.3 (258)](https://www.capterra.com/p/103468/Act-On/reviews/) Act-On is a marketing automation leader that offers solutions for marketers to engage targets throughout the customer lifecycle. [Learn more about Act-On](https://www.capterra.com/p/103468/Act-On/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## Sender](https://www.capterra.com/p/139770/SENDER/) [4.7 (212)](https://www.capterra.com/p/139770/SENDER/reviews/) Sender is email marketing software with a drag-and-drop builder, automation, and SMS marketing for streamlined campaigns. [Learn more about Sender](https://www.capterra.com/p/139770/SENDER/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 90% recommend this product [## Referrizer](https://www.capterra.com/p/144990/Referral-Marketing-Automation/) [4.8 (197)](https://www.capterra.com/p/144990/Referral-Marketing-Automation/reviews/) Automated system to empower local businesses by generating new customers using referral marketing. [Learn more about Referrizer](https://www.capterra.com/p/144990/Referral-Marketing-Automation/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 89% recommend this product [## HelpCrunch](https://www.capterra.com/p/225716/HelpCrunch/) [4.8 (195)](https://www.capterra.com/p/225716/HelpCrunch/reviews/) Cloud-based customer communication platform with live chat, shared inbox, knowledge base, chatbot, email marketing, and website popups. [Learn more about HelpCrunch](https://www.capterra.com/p/225716/HelpCrunch/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 89% recommend this product [## Moosend](https://www.capterra.com/p/147042/Moosend/) [4.6 (195)](https://www.capterra.com/p/147042/Moosend/reviews/) Cloud-based email marketing solution that helps businesses manage marketing campaigns, response, mailing lists, editing and more. [Learn more about Moosend](https://www.capterra.com/p/147042/Moosend/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 87% recommend this product [## Dotdigital](https://www.capterra.com/p/151213/dotmailer/) [4.3 (188)](https://www.capterra.com/p/151213/dotmailer/reviews/) AI-powered marketing automation software that helps businesses worldwide create, send and report on cross-channel marketing campaigns. [Learn more about Dotdigital](https://www.capterra.com/p/151213/dotmailer/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## SMTP2GO](https://www.capterra.com/p/166646/SMTP2GO/) [4.9 (178)](https://www.capterra.com/p/166646/SMTP2GO/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) With SMTP2GO we put the 'R' in reliable - we get your transactional emails into inboxes at speeds that light beams can only envy.  [Learn more about SMTP2GO](https://www.capterra.com/p/166646/SMTP2GO/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 91% recommend this product [## Emma by Marigold](https://www.capterra.com/p/75428/Emma/) [4.2 (157)](https://www.capterra.com/p/75428/Emma/reviews/) Emma by Marigold makes it easy for teams of all sizes to create and collaborate on campaigns that drive conversions and revenue. [Learn more about Emma by Marigold](https://www.capterra.com/p/75428/Emma/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## Acumbamail](https://www.capterra.com/p/195838/Acumbamail/) [4.6 (155)](https://www.capterra.com/p/195838/Acumbamail/reviews/) [Capterra Shortlist](https://www.capterra.com/transactional-email-software/shortlist/) Acumbamail is email marketing software that enables users to design and publish email, SMS, and landing page campaigns quickly. [Learn more about Acumbamail](https://www.capterra.com/p/195838/Acumbamail/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 85% recommend this product [## Delivra](https://www.capterra.com/p/266420/Delivra/) [4.5 (138)](https://www.capterra.com/p/266420/Delivra/reviews/) Delivra is a marketing platform that provides marketers with powerful automation tools to simplify multi-channel marketing. [Learn more about Delivra](https://www.capterra.com/p/266420/Delivra/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 82% recommend this product [## Amazon SES](https://www.capterra.com/p/179662/Amazon-SES/) [4.7 (123)](https://www.capterra.com/p/179662/Amazon-SES/reviews/) Amazon Simple Email Service helps developers and marketers send and receive marketing and transactional emails. [Learn more about Amazon SES](https://www.capterra.com/p/179662/Amazon-SES/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations [## Selzy](https://www.capterra.com/p/255420/Selzy/) [4.8 (116)](https://www.capterra.com/p/255420/Selzy/reviews/) Selzy is an ecosystem of easy-to-use marketing automation tools that helps small and medium businesses grow. [Learn more about Selzy](https://www.capterra.com/p/255420/Selzy/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 91% recommend this product [## Mailrelay](https://www.capterra.com/p/155095/Mailrelay/) [4.4 (112)](https://www.capterra.com/p/155095/Mailrelay/reviews/) Biggest freemium email marketing sending platform. Send up to 80,000 emails per month for free. Easily upgrade this volume to transacti [Learn more about Mailrelay](https://www.capterra.com/p/155095/Mailrelay/) Transactional Email features reviewers most value API Contact Database Email Management Email Tracking Event Triggered Actions List Management Reporting/Analytics Simple Mail Transfer Protocol (SMTP) Third-Party Integrations 83% recommend this product Page 1 of 4 ## Top-rated software of 2026 ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox. Filter (174) Products: Sort By: Featured Partners * * * Plan Type Free Trial Popular 85% of professionals opt for a 30-day trial before the software purchase Other subsciption plans: Free Version Monthly Subscription Annual Subscription One-Time License Key Features All key features Popular We have selected the most important and critical features as defined by Capterra user reviews A/B Testing AI Copilot [API](https://www.capterra.com/transactional-email-software/features/api/) Autoresponders Click Tracking Contact Database Customer Segmentation Dynamic Content [Email Distribution](https://www.capterra.com/transactional-email-software/features/email-distribution/) Email Management [Email Monitoring](https://www.capterra.com/transactional-email-software/features/email-monitoring/) Email Tracking Event Triggered Actions Generative AI List Management Message Personalization [Reporting/Analytics](https://www.capterra.com/transactional-email-software/features/reporting-analytics/) [Simple Mail Transfer Protocol (SMTP)](https://www.capterra.com/transactional-email-software/features/simple-mail-transfer-protocol-smtp/) Template Management Third-Party Integrations Deployment Cloud, SaaS, Web-Based Desktop Mac Desktop Windows Desktop Linux On-Premise Windows On-Premise Linux Desktop Chromebook Mobile Android Mobile iPhone Mobile iPad Related Software Category: [Email Marketing Software](https://www.capterra.com/email-marketing-software/)[Marketing Automation Software](https://www.capterra.com/marketing-automation-software/)[Email Verification Tools Software](https://www.capterra.com/email-verification-tools-software/)[Email Management Software](https://www.capterra.com/email-management-software/)[Conversational Marketing Platform Software](https://www.capterra.com/conversational-marketing-platform-software/)[Direct Mail Automation Software](https://www.capterra.com/direct-mail-automation-software/)[SMS Survey Software](https://www.capterra.com/sms-survey-software/)[SMS Marketing Software](https://www.capterra.com/sms-marketing-software/)[Social Media Management Software](https://www.capterra.com/social-media-management-software/)[Push Notifications Software](https://www.capterra.com/push-notifications-software/) I'm looking for Transactional Email Software that is: [Free](https://www.capterra.com/transactional-email-software/s/free/)[For Small Businesses](https://www.capterra.com/transactional-email-software/s/small-businesses/)