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Transactional Email Software with Third-Party Integrations (2026) - Page 2

Last updated: April 2026

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62 software options

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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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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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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Mailmodo logo
Category Leaders

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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iPost logo

An email platform for the modern marketer.

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iPost is an email marketing software designed to help marketers manage email campaigns, audience targeting, customer segmentation, and workflow creation. The drag-and-drop design tool lets users move email elements onto pre-existing branded templates and edit them according to requirements.

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TextBetter logo

Telephone marketing and landline texting software

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TextBetter is a telephone marketing solution that helps businesses pair landline numbers with email addresses to send or receive text messages. The software allows managers to schedule customizable automated responses, send appointment reminders, and archive messages on a unified dashboard.

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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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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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Aritic Pinpoint logo

Marketing automation platform for SME & mid-enterprise

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Aritic platform is a full-stack automation platform that includes marketing automation, communication automation, CRM application, service desk application and business automation stack designed for B2B companies. The Aritic platform has five major products under its wings.

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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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CrowdPower logo

User engagement and customer data platform for SaaS.

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CrowdPower is a customer engagement platform for onboarding, feature announcements, usage alerts, review requests, and more.

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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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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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Mailazy logo

Cloud-based transactional email service provider

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Mailazy is a powerful transactional email system built for developers based on SMTP and API to ensure inbox delivery of your emails. It quickly integrates and delivers your emails to customers’ inboxes with global infrastructure and industry expertise you can rely on.

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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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Userlist logo

Customer engagement platform to send targeted messages

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Userlist is a cloud-based customer engagement platform that enables enterprises to onboard clients and streamline communication by sending behavior-based notifications to a targeted group via emails or text messages.

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Maropost logo

Omnichannel campaigns that get results

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Maropost empowers businesses to scale and boost revenue with an easy-to-use marketing automation solution that enables users to hyper-segment their audience and rapidly create marketing campaigns that distinguish them from the competition.

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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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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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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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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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Mail Merge Toolkit logo

Personalizes mass mailings from Outlook with merge fields

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Mail Merge Toolkit is a Microsoft Office add-in that helps enhance mail merge functions in Outlook, Word, and Publisher. It enables personalized mass mailings with features such as customizable email subjects, attachments, and SharePoint list data sources. Users can send messages in PDF, DOCX, HTML, Plain Text, and RTF from Word.

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SendPost logo

Cloud-based email verification platform.

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SendPost provides an Email API and SMTP relay for developers, software businesses, and ESPs with tools, expertise, and support needed to reliably deliver, measure and optimize transactional emails.

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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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Enabler logo

Enterprise-level email marketing software

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Enabler is an enterprise-level email marketing software which supports email consultancy, email campaign management, and email template design services

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