# Top Free Transactional Email Software - Page 4 ## How Many Transactional Email Software Products Does G2 Track? **Total Products under this Category:** 136 ### Category Stats (Jul 2026) - **Average Rating:** 4.41/5 (↑0.01 vs Jun 2026) The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** Spotler SendPro (+1.75%) - Among all products in this category, Spotler SendPro recorded the largest rating increase compared to last month _Last updated: July 21, 2026_ ## How Does G2 Rank Transactional Email Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 31,700+ Authentic Reviews - 136+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. [ Engagespot ](https://www.g2.com/products/engagespot/reviews) By [Engagespot](https://www.g2.com/sellers/engagespot-af53a134-8168-487f-8d81-3be9fc7ac026) [ 4.4/5(6) ](https://www.g2.com/products/engagespot/reviews) Product Description Engagespot is the easiest way to build your product's multi-channel notification infrastructure. Deliver In-App, Email, Push and SMS notifications from your app to your users with a single API. Engag [ Freshmarketer ](https://www.g2.com/products/freshworks-freshmarketer/reviews) By [Freshworks](https://www.g2.com/sellers/freshworks) [ 4.1/5(17) ](https://www.g2.com/products/freshworks-freshmarketer/reviews) What do users say? Users consistently praise the user-friendly interface and robust automation capabilities of Freshmarketer, highlighting its effectiveness in simplifying marketing tasks and enhancing team collaboratio Pros and Cons [ Automation (1) ](https://www.g2.com/products/freshworks-freshmarketer/reviews?qs=pros-and-cons)[ Inadequate Reporting (1) ](https://www.g2.com/products/freshworks-freshmarketer/reviews?qs=pros-and-cons) [![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. [ Learn More ](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) [ Sendwithus ](https://www.g2.com/products/sendwithus-sendwithus/reviews) By [Techdrop Labs](https://www.g2.com/sellers/techdrop-labs) [ 4.7/5(3) ](https://www.g2.com/products/sendwithus-sendwithus/reviews) Product Description Streamline your entire email creation process with Dyspatch. From collaboration and approval workflows to pre-coded interactive email designs, create and send emails faster without needing to code. O [ Spotler SendPro ](https://www.g2.com/products/spotler-sendpro/reviews) By [Spotler Group](https://www.g2.com/sellers/spotler-group-a3f6b7c0-24fb-4205-9f31-02f8a1d43e29) [ 4.8/5(3) ](https://www.g2.com/products/spotler-sendpro/reviews) Product Description Spotler SendPro is a transactional email platform built for developers and businesses that need reliable, high-volume email delivery without the compliance compromises of US-hosted infrastructure. [ mailboxlayer API ](https://www.g2.com/products/mailboxlayer-api/reviews) By [Idera, Inc.](https://www.g2.com/sellers/idera-inc-2026-07-14) [ 4.3/5(11) ](https://www.g2.com/products/mailboxlayer-api/reviews) What do users say? Users consistently praise the ease of use and accurate results provided by the Mailboxlayer API, making email validation straightforward and effective for maintaining clean email lists. Many appreciat [ Sidemail ](https://www.g2.com/products/sidemail/reviews) By [Sidemail](https://www.g2.com/sellers/sidemail) [ 5/5(2) ](https://www.g2.com/products/sidemail/reviews) Product Description Sidemail is an all-in-one email delivery platform. It covers everything for delivering and managing emails – transactional emails, email marketing, email automation, contact profiles management, a [ Ark ](https://www.g2.com/products/ark-2026-01-18/reviews) By [Ark](https://www.g2.com/sellers/ark-c7a13bec-1e76-4f9a-b8be-12ad1097f24b) [ 4.5/5(1) ](https://www.g2.com/products/ark-2026-01-18/reviews) Product Description Ark is a white-label email infrastructure API designed for SaaS platforms that send email on behalf of their customers. It provides the backend layer that enables platform customers to send authentica Pros and Cons [ Affordable (1) ](https://www.g2.com/products/ark-2026-01-18/reviews?qs=pros-and-cons)[ Lack of Guidance (1) ](https://www.g2.com/products/ark-2026-01-18/reviews?qs=pros-and-cons) [ Dynosend ](https://www.g2.com/products/dynosend/reviews) By [Rolocost Interactive](https://www.g2.com/sellers/rolocost-interactive) [ 4.5/5(1) ](https://www.g2.com/products/dynosend/reviews) Product Description Dynosend is a customer engagement platform for marketers and SaaS companies, it allows you to create marketing automation journeys, send data-driven omnichannel messages and more to engage your custom Pros and Cons [ Automation Features (1) ](https://www.g2.com/products/dynosend/reviews?qs=pros-and-cons) [ Helpmonks ](https://www.g2.com/products/helpmonks/reviews) By [Helpmonks](https://www.g2.com/sellers/helpmonks) [ 4.3/5(26) ](https://www.g2.com/products/helpmonks/reviews) What do users say? Users consistently praise the ease of use and responsive customer support of Helpmonks, highlighting its ability to streamline team communication and manage multiple inboxes effectively. Many apprecia Pros and Cons [ Efficiency (1) ](https://www.g2.com/products/helpmonks/reviews?qs=pros-and-cons)[ Error Handling (1) ](https://www.g2.com/products/helpmonks/reviews?qs=pros-and-cons) [ rdcom ](https://www.g2.com/products/rdcom-intouch/reviews) By [rdcom](https://www.g2.com/sellers/rdcom) [ 4.5/5(1) ](https://www.g2.com/products/rdcom-intouch/reviews) Product Description inTouch is a multichannel messaging platform designed to manage SMS, Email and RCS communications from a single environment. The platform enables businesses, agencies and resellers to create personal Pros and Cons [ Automation (1) ](https://www.g2.com/products/rdcom-intouch/reviews?qs=pros-and-cons) [ Lemnisk ](https://www.g2.com/products/lemnisk/reviews) By [Lemnisk](https://www.g2.com/sellers/lemnisk) [ 4.4/5(10) ](https://www.g2.com/products/lemnisk/reviews) What do users say? Users consistently praise the flexibility and customization of Lemnisk, noting how it allows them to tailor the platform to meet their specific needs. The responsive customer support is also frequentl [ LuxSci ](https://www.g2.com/products/luxsci/reviews) By [LuxSci](https://www.g2.com/sellers/luxsci) [ 4.7/5(83) ](https://www.g2.com/products/luxsci/reviews) What do users say? Users consistently praise the excellent customer support provided by LuxSci, highlighting the quick response times and knowledgeable assistance that help resolve issues efficiently. Many appreciate th Pros and Cons [ Customer Support (21) ](https://www.g2.com/products/luxsci/reviews?qs=pros-and-cons)[ Email Issues (5) ](https://www.g2.com/products/luxsci/reviews?qs=pros-and-cons) [ Yonoma ](https://www.g2.com/products/yonoma/reviews) By [TwinArcus](https://www.g2.com/sellers/twinarcus) [ 4/5(1) ](https://www.g2.com/products/yonoma/reviews) Product Description Yonoma is an email marketing and automation platform built for growing SaaS companies that want to engage users, boost retention, and drive conversions — all without wasting time on complicated setups Pros and Cons [ Free Plans (1) ](https://www.g2.com/products/yonoma/reviews?qs=pros-and-cons) [ IGSendMail ](https://www.g2.com/products/igsendmail/reviews) By [IGSendMail](https://www.g2.com/sellers/igsendmail) [ 3/5(1) ](https://www.g2.com/products/igsendmail/reviews) Product Description IGSendMail is an email marketing platform where every paid plan includes unlimited contacts. Instead of per-subscriber billing that scales as your list grows, you pay a flat monthly rate based on send Pros and Cons [ Expensive (1) ](https://www.g2.com/products/igsendmail/reviews?qs=pros-and-cons) [ indemandly ](https://www.g2.com/products/indemandly/reviews) By [indemandly](https://www.g2.com/sellers/indemandly) [ 0/5(0) ](https://www.g2.com/products/indemandly/reviews) Product Description indemandly is a conversational marketing tool for business websites & social media. [![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. [ Learn More ](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) - [‹ Prev‹ Prev](/categories/transactional-email/free?order=g2_score&page=3#product-list) - [1](/categories/transactional-email/free?order=g2_score#product-list) - [2](/categories/transactional-email/free?order=g2_score&page=2#product-list) - [3](/categories/transactional-email/free?order=g2_score&page=3#product-list) - 4 - [5](/categories/transactional-email/free?order=g2_score&page=5#product-list) - [Next ›Next ›](/categories/transactional-email/free?order=g2_score&page=5#product-list) Spotlight Categories [Zero Trust Networking Software](https://www.g2.com/categories/zero-trust-networking) [Online Community Management Software](https://www.g2.com/categories/online-community-management) [Accounts Payable Automation Software](https://www.g2.com/categories/ap-automation) [Demo Automation Software](https://www.g2.com/categories/demo-automation) [Customer Service Automation Software](https://www.g2.com/categories/customer-service-automation) Similar Categories - [Account-Based Marketing](/categories/account-based-marketing) - [Affiliate Marketing](/categories/affiliate-marketing) - [App Store Optimization](/categories/app-store-optimization) - [Audience Intelligence Platforms](/categories/audience-intelligence-platforms) - [B2B Services Review Platforms](/categories/b2b-services-review-platforms) - [Blogger Outreach](/categories/blogger-outreach) - [Book Marketing Tools](/categories/book-marketing-tools) - [Brand Intelligence](/categories/brand-intelligence) - [Consumer Insights Platforms](/categories/consumer-insights-platforms) - [Consumer Video Feedback](/categories/consumer-video-feedback) - [Content Curation](/categories/content-curation) - [Content Marketing](/categories/content-marketing) - [Conversational Marketing](/categories/conversational-marketing) - [Conversion Rate Optimization Tools](/categories/conversion-rate-optimization-tools) - [Customer Data Platform (CDP)](/categories/customer-data-platform-cdp) [Browse Transactional Email Themes](/categories/transactional-email/themes)