Netcore Email API Alternatives (September 2025)

Integrate in minutes and send transactional emails via our REST API or SMTP. Scale with our reliable global infrastructure and deliver emails to your customer's inbox instantly.

Start sending transactional and marketing email in minutes. Easily scale to enterprise-volume with Twilio SendGrid’s Email API. Try it free!

Powerful Transactional Email APIs that enable you to send, receive, and track emails, built with developers in mind. Learn more today!

Trigger thousands of messages in minutes. Integrate seamlessly. Only pay for what you need. Try Brevo's Messaging API for free — no credit card needed.

Everything you need for more successful email delivery and performance management, from simple sending tools to deeply informative reporting.

Rock-solid reputation and a reliable API with endless possibilities for sending your transactional emails.

Streamline your emailing and boost your sales with Mailjet. We serve all your email and SMS needs with one simple and powerful service.

Build your very own omnichannel customer engagement platform with a no-code builder or customize it with Video, Voice, SMS, and chatbot APIs from EnableX.

Take your marketing to the next level​ with the leading self-serve Customer Engagement platform for cross-channel experiences.

Connect with customers on their preferred channels—anywhere in the world. Quickly integrate powerful communication APIs to start building solutions for SMS and WhatsApp messaging, voice, and email.

Elastic Email is a marketing platform, built on the most cost-effective delivery engine. Join tens of thousands of companies, which already send their emails!

WebEngage offers CDP, Omnichannel Campaign Manager and Web & App Personalization Engine - to help brands boost their revenue from existing customers.

Niezawodne Email API i SMTP w chmurze. Najwyższa dostarczalność i szczegółowa analityka wiadomości email wysyłanych z Twojego systemu lub aplikacji.

Turn data insight into personalized, cross-channel marketing experiences with Dotdigital's all-in-one customer experience and data platform.

Unlock meaningful conversations across the customer journey with programmable SMS, voice, email, video, & verification APIs!

Create highly personalized, intent-driven experiences that drive more conversions with Acoustic Connect.

Incoming Email for your Web Application, send and receive email via HTTP Post in the Cloud

SMTP2GO is the scalable, reliable email deliverability solution. Worldwide servers, a robust API, and powerful reporting set us apart. Try our free plan!

Engage your customers and prospects with simple drag and drop email, SMS, chatbot or build custom solutions with the best in class APIs

Start sending emails with our top-rated service. Sign up for free now to streamline your email sending process with API or SMTP.

Helping brands master Mobile App Experiences (MAX) to engage customers and win their loyalty. Learn more.

Engage your customers and prospects with simple drag and drop email, SMS, chatbot or build custom solutions with the best in class APIs

Ongage is an email marketing platform that allows you to deliver emails, learn from customers, and optimize behavior at scale. Want to see KPIs going up?

Create dynamic customer engagements driven by valuable data insights. Design omni-channel campaigns on one user-friendly platform, on-cloud or on-site.

Email API and SMTP relay to not just send and measure email sending, but also alert and optimise. We provide you with tools, expertise and support needed to reliably deliver emails to your customers inboxes on time, every time.

Helping brands creating moments of delight. Because every superhero needs a sidekick.

With Marketing Cloud’s personalization engine, gain insights about your customers. Use AI to engage them with relevant marketing experiences across channels.

Send Transactional and Promotional Emails in bulk using SendClean. Best Email Marketing and Email API Solution for Enterprises. White lable Email Solution.

Mailercloud is the ultimate platform for growing businesses, offering smart and intuitive email marketing tool to help you thrive in the digital world.

Execute your cross channel marketing strategy with MoEngage’s insights-led customer engagement platform. Leverage the power of personalization with MoEngage.

Use Mailmodo to create and send interactive emails your customers love. Drive conversions and get better email ROI. Sign up for a free trial now.

This reliable and secure transactional email service by Zoho Mail ensures guaranteed and fast delivery of transactional emails, and comes with a pay-as-you-go pricing plan.

UniOne is a transactional email service: you can send Transactional Emails simple and cheap with the help of platform API Email UniOne.

MailUp is your complete email and SMS delivery solution that combines powerful email marketing tools with SMTP relay and plugins for e-commerce, CRM, and CMS systems

No matter your level of expertise, we have a solution for you. At GetResponse, it's email marketing done right. Start your free account today!

Explore Customer.io, the data-driven platform for personalized customer journeys across all channels, fueled by first-party data.

Build beautiful, responsive emails with Benchmark's email marketing platform to engage subscribers, nurture leads, and track results.

Email Delivery Platform to test, send and control email infrastructure in one place. Great for dev teams. Start today - Sign Up free!

Increase email marketing automation engagement through personalization, segmentation, and analytics with Adestra.

Ecommerce email marketing, automated emails and SMS - switch to Omnisend and increase your sales without increasing your workload.

Send your Transactional and marketing Emails safely, track your results and use powerful APIs designed for devolopers by developers. Try for free

The ultimate email marketing software and marketing automation platform that will not break your bank. Try Moosend for free!

Litmus is the all-in-one email marketing platform that provides the tools and solutions your team needs to make every send count. Try for free today!

Use real-time behavior data and AI to convert more customers with Mailchimp's marketing, automation & email marketing platform. Easy to use - start for free!

Unlock deeper deliverability insights, more efficiency and supercharged performance with the complete email package. Our email signals platform provides visual renderings and deep insights on your program's performance, paired with a best-in-class professional services team. So you can land every send.

Advance your app's capabilities: Integrate LinkedIn and WhatsApp for streamlined messaging and improved user experience.

Intelligent email marketing, sms, and automation for faster, more efficient growth. Turn your customer data into hyper-personalized messages that people want.

Grow your business with Brevo, the all-in-one platform to manage customer relationships across email, SMS, chat, and more. Get started for free.

Ensure communication with customers and suppliers, modernize messaging infrastructures and automate manual business processes thanks to Retarus’ intelligent cloud solutions.

Digital marketing tools to grow your audience faster and drive revenue smarter. Backed by 24/7 award-winning support. Check it out now!

Vonage APIs (formerly Nexmo) offers communications APIs, a global platform and expert support—empowering you to create exceptional customer experiences.

Engage your customers like never before with CleverTap’s all-in-one customer engagement platform. From personalized messaging to automated campaigns, CleverTap platform offers a suite of powerful tools to help you connect with your audience at every stage of the customer journey. Get started with CleverTap today.

Sitecore offers an industry-leading digital experience platform that allows brands to create, build, manage, and deliver standout content along every touchpoint of the customer journey.

Learn how to use Mailchimp Transactional Email to send targeted and event driven messages to anyone, fast—with best-in-class deliverability.

Courier is a notification API built for developers. Design once, and deliver to any channel – email, Slack, SMS, push, and more – all through a single API.

Experience seamless communication with MyOperator's call and WhatsApp API solutions. Run Campaigns, Deliver Customer Support, Build Engaging Workflows.

Knowlarity is a leading cloud business communication solution provider with cloud telephony - virtual number, ivr, toll-free number, call center software, AI products (speech, chatbot and voicebots), video & messaging solutions.

Visitor activation and customer retention platform. Grow customer value through smart user journeys, using all data in real time.

Connected systems make you faster, more efficient, and highly competitive. In today’s world of fast moving business, connectivity is power.

Email on Acid is the leading email pre-deployment checklist and a configurable part of your email marketing workflow, from accessibility checks to email previews.

AI transformation partner for enterprises, driving increased revenue, reduced costs, and enhanced customer experience with Exotel solutions.

The Tangle platform delivers speed, scalability and security in a developer friendly manner. It does this by leveraging the best open standards in the industry, to provide powerful capabilities which have been tailored to ensure you can deliver powerful enterprise apps, fast.

Know Your Customer is an award-winning SaaS ecosystem and APls designed to revolutionise the compliance, corporate onboarding and periodic review process.

Explore HandySends SendGrid Email API transactional email service! Discover its features, pros, and cons to send transactional emails.

Effortlessly design, optimize, and build stunning email marketing assets with Chamaileon — the industry-first no-code, drag-and-drop email builder. Achieve 90% faster time to market, seamless integrations, and real results. Empower collaboration and scale your marketing

Power customer-centric interactions between consumers and brands in real-time

JangoSMTP - Transactional Emails Made Easy. Highest Inbox Results. Live US-Based Support. API and SMTP Relay Sending.

Nextbillion.ai provides industry’s most powerful APIs and SDKs to solve routing and optimization problems. Seamlessly integrate our products with your existing infrastructure.

Loops makes email marketing for modern SaaS companies easy. It's the best way to create, send and track beautiful email campaigns.

Trusted cloud-based business network to streamline, automate and fully digitize B2B transitions, augmenting the power of EDI with API capabilities.

Expand ARR and accelerate your product roadmap with engaging, secure, embedded analytics and reporting designed specifically for SaaS.

Elevate efficiency with APISCRAPY's AI-Driven Web Scraping & workflow automation. Streamline processes seamlessly. Embrace the future of productivity.

Mailosaur removes the frustration of testing everything a user might do. 
Test password resets, replies, two-factor logins, and more.

SAS Customer Intelligence 360: Modern marketing hub for real-time, individualized customer interactions. Go beyond CDP & elevate engagement.

Squark's no-code AI SaaS platform and API serves industries like media & entertainment, gaming and casinos, SaaS, and healthcare marketing.

Freshworks makes easy-to-use business software. We are a leading provider of modern SaaS solutions that solve multiple, complex business problems.

Send bulk, transactional, & marketing emails with our easy-to-use and reliable SMTP. Check the quality of email and improve delivery. Get started for free!

Empower your brand with centralized email compliance management. Maximize revenue through compliant outbound marketing.

SmartEngage offers Cross-Channel Marketing Automation and Broadcast for Email Newsletter, SMS, Facebook Chat Bot, and Push Notifications.

Integrate email, calendar, contacts & tasks painlessly with Aurinko. Free trial, trusted by leading companies.

Qmatic is a global leader in customer journey management. We manage over two billion customer journeys each year, across more than 65,000 systems worldwide.

Attentive is the most comprehensive personalized text messaging solution. 99% open rates, 30%+ click-through rates, and 25x+ ROI.

SMTP email relay service that is powerful, secured and reliable. Send better transactional emails and integrate easily with our email API.

Harness unparalleled operational insight with Apica's Observatory Platform. Designed for modern enterprises, our solution delivers scalable, powerful, and cost-effective APM monitoring for complex computing ecosystems.

API integration Platform-as-a-Service (iPaaS) provides capabilities offered by ESBs, data integration systems, API management tools and B2B gateways.

Unlayer is an email editor and page builder to build beautiful, responsive designs quickly and easily. Use it online or embed it into your application.

Unlock the power of Blocks - the ultimate AI-powered no-code email builder. Craft visually appealing emails without any coding skills. Try it today!

Build native integrations fast with Truto. Integration is a solved problem. Why have your best engineers work on integrations when they can focus on architecture, design, and product?

Nurture, convert, and onboard customers with a marketing automation platform built for B2B SaaS businesses.

Product overview Crownpeak Digital Quality Management (DQM) is a unified solution to manage digital policies and standards across your entire web

Unlock the power of your communications data. The Nylas communication APIs remove complexity & empower teams to create seamless user experiences.

S3-compatible object storage by Gcore. Get the opportunity to store and retrieve any amount of data at any time.

Optimove ensures marketing starts with the customer and not campaign/product. Customer-led marketing delivers brands an average increase of 33% in CLTV.

Connect your e-commerce systems, operations, and platforms with leading B2B software for order, warehouse, and delivery management.

PushEngage is the world's best push notification service that works on both desktop browsers and mobile devices, trusted by 25,000+ happy customers!

Un Servicio de Email Transaccional garantiza la llegada de los emails a tus clientes. Envia adjuntos con el Servicio de Email Transaccional con Doppler Relay.

Create powerful email marketing campaigns with Cyberimpact, a Canadian software. Get all the tools you need to build customer loyalty and increase sales.

Ortto’s marketing automation and customer data platform unifies your data, messaging and analytics on a single platform.

We provide powerful solutions that will help your business grow globally. Try our superior performance for free