Alternatives to SendGrid
Compare SendGrid alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to SendGrid in 2026. Compare features, ratings, user reviews, pricing, and more from SendGrid competitors and alternatives in order to make an informed decision for your business.
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1
ActiveCampaign
ActiveCampaign
ActiveCampaign is the autonomous marketing platform that transforms how marketers, agencies, and business owners work. Use Active Intelligence to power goal-aware automations and orchestrate personalized experiences across email, SMS, and WhatsApp. Within a single tool, you get real-time reporting and proactive optimizations in addition to market-leading deliverability and integration with 1000+ apps. With a user-friendly interface and a comprehensive suite of features, ActiveCampaign's platform is powerful, accessible, and designed to scale with your business. It's also easy to get started: While traditional tools force teams through long setup cycles and training, ActiveCampaign delivers measurable lifts in engagement and conversions in days. 89% of surveyed customers say the platform meets their business needs better than the competition, and 88% say ActiveCampaign delivers value faster than competitors. Read our ROI report for methodology -
2
Klaviyo
Klaviyo
Klaviyo is the AI-first B2C CRM platform that helps you grow by integrating marketing, analytics, and customer service in one solution. Powered by unified data and built-in AI, it's faster and easier than ever to create personalized, lasting customer relationships. Klaviyo unifies your customer profiles by capturing every event, and then lets you orchestrate your email marketing, SMS marketing, push notifications, WhatsApp, and RCS campaigns in one place. Built-in AI agents plan and launch campaigns, personalize every send, answer questions, and resolve issues. With real-time attribution and insights, you'll be able to make smarter, faster decisions that drive ROI. Trusted by more than 170,000 businesses, Klaviyo can grow your business while keeping operations simple and customer relationships strong -
3
Sendbird
Sendbird
Sendbird is the omnichannel AI agent platform enterprises choose to elevate customer experience, by initiating autonomous support & sales conversations, keeping humans in the loop for complex inquiries, and re-engaging customers with proactive business messages. Combining omnichannel AI and a battle-tested, award-winning communication APIs, Sendbird enables businesses to build AI agents and meaningful customer connections at scale. Sendbird’s AI-powered customer service platform helps businesses deliver scalable, omnichannel support through intelligent AI agents. These agents work seamlessly across channels like mobile apps, web, SMS, and social media, providing instant and proactive assistance to customers 24/7. With the ability to integrate into existing customer support tools, the platform enhances resolution rates, reduces response times, and improves customer experience by offering a unified view of all interactions. -
4
Attentive
Attentive Mobile
Send messages your customers want to read (and act on). Attentive’s AI-powered SMS & email platform helps retail enterprises to e-commerce entrepreneurs engage customers and drive billions in revenue. We'll help you target the right audience and measure your most important metrics to optimize your marketing program. And with over 100 flexible integrations, you can seamlessly connect to the rest of your marketing stack. We partner with industry innovators in retail & e-comm, food & beverage, and media & entertainment. Attentive’s AI-powered SMS & email platform will double your ROI in just a few months. Learn more about our free 30-day trial. -
5
InboxAlly
InboxAlly
We engage with your emails to teach inbox providers not to send your emails to spam. Our clients have seen their open rates more than DOUBLE within 1-2 weeks! Highly engaged recipients not only open emails, but scroll down as they read. So long as the content is longer than the page, this should be done for nearly all opened emails. When a recipient goes out of their way to take an email out of spam, they are telling the inbox provider, hey, you made a mistake. Moving an email from the promotions folder to the primary inbox tells inbox providers that you disagree with their sorting criteria and it and similar emails should go to the primary inbox. Demonstrates that recipient is interested in the content of your email. We have a set of random generic replies we use for this. Marking an email as important can essentially be interpreted by the inbox provider as "This email is extremely valuable, never send it to spam." -
6
GetResponse
GetResponse
GetResponse provides all-in-one marketing software that empowers marketers, solopreneurs, coaches, creators, and small business owners with affordable, easy-to-use tools for email marketing, marketing automation, and content monetization. With over 25 years of expertise, GetResponse goes beyond email with tools to help grow and engage audiences, create and sell courses, and turn ideas into income. It’s the go-to solution for building a personal brand, selling products and services, and fostering a loyal community. -
7
HubSpot CRM
HubSpot
HubSpot brings your marketing, sales, and service teams together on the same AI-powered customer platform. HubSpot's Customer Platform is not just a tool; it's the heartbeat of your business. Designed with passion and precision, our CRM stands out as the ultimate solution for empowering your team to build deeper customer relationships. It transforms the way you engage with your clients by offering a seamlessly integrated, all-in-one platform for sales, marketing, and customer service. With HubSpot's CRM, you gain unparalleled insights into your customer interactions, all organized in an intuitive, easy-to-navigate dashboard that promises to skyrocket your team's efficiency. Our platform is engineered to grow with you, offering scalable solutions that adapt to your evolving business needs. What's more, HubSpot's Customer Platform includes a robust free version, packed with essential features, making it the perfect choice for ambitious businesses of all sizes.Starting Price: Free -
8
Bouncer
Bouncer
Bouncer - The easiest to use yet the most powerful E-mail Validation and deliverability Service. Bouncer is a fortress-like secure (GDPR compliant) Email Verification and Deliverability platform trusted by thousands of companies from 6 continents. The platform was founded in 2017 with a simple mission to improve human-to-human e-mail communication and help people get and stay connected via the e-mail channel. Bouncer is a technological leader in the e-mail verification market. Both list and API verification are top-notch mechanisms with a zero downtime policy. The product has the best coverage and high performance (up to 200,000 verified e-mails per hour per customer). To be a more complex solution for both Enterprise and SMB segments, the product has additional features like e-mail Toxicity Check and Deliverability Kit, so users can take care of and improve their deliverability. Bouncer also has a vast integrations library.Starting Price: $8.00/one-time -
9
Selzy
Selzy
Selzy is an ecosystem of easy-to-use marketing automation tools that helps small and medium businesses grow. From list growth and crafting a perfect email to segmentation, automation, A/B testing, and analytics, Selzy covers it all. - Launch your first campaign in less than 15 minutes: use smooth drag-and-drop email builder, 140+ goal-oriented templates, and AI writing assistant - Anti-spam email checker: have every email rated and get personalized tips to improve deliverability - Grow your list with customizable pop-up forms - Connect your favorite tools: Shopify, WordPress, Woocommerce, Airtable, Salesforce, HubSpot, Pipedrive, and so much more - Get 24/7 help from our support team (real humans with top-notch email marketing experience).Starting Price: $7 per month -
10
Critical Impact
Critical Impact
Critical Impact allows you to enhance and simplify your email marketing campaigns. Our tools let you effectively manage your email and SMS lists, send personalized and automated emails, along with text messages (SMS) for your marketing campaigns all at a competitive price model. Our subscriber scoring algorithms will mine your data to quickly identify those subscribers who are most likely to read your next email, consume additional emails, or make another purchase. With our easy-to-use interface, you can schedule messages to send in minutes. Select your send options all on one page, and then prevent mistakes by seeing a confirmation of all your send details. Even A/B test your email across device screens – from phones to tablets to monitors. -
11
Stripo.email
Stripo
Stripo is an all-in-one email design platform with over 1 600 000 users worldwide. We enable our clients to build emails of any complexity really fast and push them to their marketing automation system with just 1 click. Integrated with 90 ESPs/CRMs, including Mailchimp, HubSpot, Salesforce, Campaign Monitor, Constant Contact, Braze, SendGrid, eSputnik, Outlook, Gmail, etc. +1600 ready-to-use templates, modular email design, Email Translate Service. A number of embedded micro-tools give everything you need for emails, from photo editors to banner generators, from timers to interactivity and real-time content. We are one of the first builders that implemented the AMP4Email technology. Multiple studies show that AMP increases conversion by 5 times. With Stripo, you can build real-time content for your emails with little to no coding skillStarting Price: $20/month -
12
FireDrum Email Marketing
FireDrum Email Marketing
FireDrum provides powerful email marketing solutions for businesses & organizations of any size, from do-it-yourself to white label or fully managed services. Our platform combines our easy-to-use Email Studio to create email templates, intuitive campaign automation tools, and industry best customer support. FireDrum is scalable and features automation, contact management, engagement tools, and more. Customers rave about our exceptional personal one on one support that you can't get from the megacorp email providers. Choose Chat, Email or Phone communication with your own dedicated account manager. Easily import and export your contact lists. We offer unlimited custom fields and lists. Use our built in contact capture forms or one of the many integrated options. We support email signup forms for WordPress, Privy, WooCommerce and many others. Unique to FireDrum you can view and sort your Contacts by Opens and Clicks. Instantly see what contacts are the most engaged.Starting Price: $4.00/month -
13
GlockApps
GlockApps
Where are your emails delivered? Receive reports with an in-depth understanding of what your emails are doing and how to increase your reputation and deliverability before you hit Send! In your reports you can: ❖ Check to see if your sending IPs or Domains are listed within 50+ major email blacklists. ❖ Protect your identity by identifying, monitoring, and rejecting unauthenticated outgoing emails. ❖ Identify whether your email’s content or reputation is being flagged as Spam by all major B2B and B2C email marketing providers. ❖ Fix HTML errors and identify “risky” content before sending. ❖ Get instantly notified when issues occur by email, Slack, or Telegram. Want to speak with an expert? Book a 1-hour consulting call to get all your email marketing and deliverability questions answered. We also offer comprehensive Email Deliverability Audits with personalized recommendations for companies looking to maximize their revenue with email.Starting Price: $9 per month -
14
SMTP.com
Ziff Davis
Reliable SMTP relay and email delivery services. Powerful email delivery services that enable you to send and track high volume emails effortlessly. Integrate and start sending in minutes. All your transactional, email relay and email delivery needs under one roof. Whether you need a low-latency email delivery provider for your transactional emails, scalable infrastructure for high-volume sends or reliable backend solution for your marketing campaigns, SMTP is built to deliver. Reputation Defender is SMTP’s proprietary technology that uses big data to proactively monitor your email list health and safeguard your domain and IP reputation among ISPs by suppressing bad emails in your sends from hard and soft bounces. This ensures your delivery rates and inbox placement incrementally gets better over time.Starting Price: $25 per month -
15
emfluence Marketing Platform
emfluence
Designed with you in mind, the emfluence Marketing Platform offers an intuitive interface and powerful features to streamline your digital marketing efforts. Whether you're launching personalized campaigns, managing multiple brands, or crafting strategies, our platform empowers you to succeed with email automation, advanced personalization in email marketing, social media management, timely SMS marketing, high-converting landing pages, comprehensive automated reporting, website tracking, lead scoring, a centralized marketing calendar, and more. Experience the perfect balance of usability and functionality with the emfluence Marketing Platform, and take your marketing to the next level.Starting Price: $1,000/month -
16
Omnisend
Omnisend
Omnisend is an all-in-one marketing platform tailored for busy shop owners who have enough adventure in their ecommerce business already. One-click integration with major ecommerce platforms, pre-made automation & email templates, and award-winning 24/7/365 live customer support… We do the heavy lifting so you could do less and sell more. Join 150,000+ businesses and try out Omnisend to see for yourself how refreshingly boring and adventureless (in the best way possible) your email marketing can be.Starting Price: $16.00/month -
17
1PointMail
1Point Interactive, LLC.
1PointMail, a cloud-based email marketing solution, allows users to improve their email marketing return on investment (ROI). With 1PointMail, users can optimize marketing campaigns, manage lists, track campaign results in real time, and enhance email deliverability. 1PointMail allows users to upload lists, create newsletter templates, and send dedicated messages to their customers. 1PointMail also enables users to create sub-accounts for multiple users and customize them by giving them assignment permissions.Starting Price: $49.00/month -
18
Routee
AMD Telecom
Routee is an intelligent omnichannel communication platform (CPaaS) offering advanced Web and API automation for all industries worldwide. Powered by AMD Telecom’s robust infrastructure, Routee's services enable businesses to optimize their marketing & business processes. -SMS Marketing: tailor-made messages based on customers' individual preferences -Email Marketing: personalized newsletters & email campaigns based on an audience's behavioral data -Transactional Email: automated emails to customers on important data regarding their transactions -Marketing Automation: rich forms & customer data capture, automation of repetitive marketing tasks, and tracking of marketing campaigns -Two Factor Authentication: a second layer of security with fallback through SMS, Voice, Viber & Missed Call -Cloud IVR: multilingual capabilities, turning speech into text, & text to human-sounding speech -Push Notification: personalized web & mobile push notifications, based on segmentation and userStarting Price: $0.01 one-time fee -
19
ZeroBounce
ZeroBounce
ZeroBounce is an email verification, scoring and deliverability platform helping businesses improve their inbox placement. The service detects email typos, nonexistent and abusive email accounts, spam traps and other risky email addresses. ZeroBounce also provides an email scoring service and a suite of deliverability tools to further enhance email inbox placement. The company operates a military-grade security infrastructure, ensuring customer data is protected at the highest levels. With more than 23 billion emails validated to date, ZeroBounce serves 400,000+ businesses in 190+ countries and adds up to 200 new clients every day. Companies using email lists validated by ZeroBounce report a 99%+ accuracy rate and maintain a good sending reputation. In 2019, ZeroBounce took no. 851 on the Inc. 5000 list of the fastest-growing private companies in the United States. In 2020, ZeroBounce rose to no. 40 on the list. In 2021, ZeroBounce was number 9 on the Inc. 5000 Regionals list.Starting Price: $18 - 2000 Validation Credits -
20
Braze
Braze
Braze is a customer engagement platform that delivers messaging experiences across push, email, apps, and more. Braze is built specifically for today’s mobile-first world and tomorrow’s ambient computing future. Braze is set apart as the platform that allows for real-time and continuous data streaming, replacing decades-old databases that aren’t built for today’s on-demand, always-connected customer. With data, technology, and teams working together in unison, the Braze platform makes marketing more authentic, brands more human, and customers more satisfied with every experience. Braze is a venture-backed company with hundreds of employees. Offices are located in New York City, San Francisco, London, and Singapore. Recognized by Forbes Cloud 100 at #85, ranked #225 on Inc.'s 500 Fastest Growing Private Companies, and listed as #21 in the Deloitte Technology Fast 500 List, and recognized by The New York Times as ‘The Next Wave of ‘Unicorn’ Start-Ups’. -
21
Constant Contact
Constant Contact
We deliver for small businesses with powerful tools to simplify and amplify digital marketing. Whether it's driving sales, growing a customer base or engaging an audience, we help you build strong connections and generate powerful results. - Grow your audience Build your list fast with landing pages, social media lead ads, and more. - Deepen customer relationships Create professional emails, segment your list and automate your messages to drive more engagement and sales for your business. - Simplify your social media Create and manage social posts and ads to generate awareness, drive leads and promote growth, all from one place. - Sync with the apps you're already using Connect with digital tools you're already using to grow your business and sell more online, faster.Starting Price: $12 per month -
22
Mailchimp
Intuit Mailchimp
Mailchimp is a marketing automation platform boasting 11 million users worldwide to personalize every email and SMS for every customer using AI-powered insights and content creation tools. With a 99% delivery rate and over 300 integrations, Mailchimp helps businesses connect with their customers, foster repeat business, and build lasting brand loyalty while fitting into their existing workflows. Businesses including TEDTalks, Shutterstock, Boston Market, Nikon India use Mailchimp to drive revenue through emails. Founded in 2001 and based in Atlanta with offices in Brooklyn, Oakland, Vancouver, London, Seattle, and Santa Monica. In 2021 Mailchimp was acquired by Intuit Inc. (Nasdaq: INTU), the global financial technology platform that makes Intuit TurboTax, Credit Karma, QuickBooks, and Mailchimp. Since then, the company has released 100+ new features to help its customers.Starting Price: $9.99 per month -
23
Amazon SES
Amazon
Amazon Simple Email Service (SES) is a cost-effective, flexible, and scalable email service that enables developers to send mail from within any application. You can configure Amazon SES quickly to support several email use cases, including transactional, marketing, or mass email communications. Amazon SES's flexible IP deployment and email authentication options help drive higher deliverability and protect sender reputation, while sending analytics measure the impact of each email. With Amazon SES, you can send email securely, globally, and at scale. Using either the Amazon SES console, APIs, or SMTP, you can configure email sending in minutes. Amazon SES also supports email receiving, enabling you to interact with your customers at scale. Regardless of use case or sending volume, you only pay for what you use with Amazon SES.Starting Price: $0.10 per month -
24
AutoSend
AutoSend
AutoSend is a lightweight, cloud-based email delivery platform built to send and track transactional messages (like magic links, verification codes, and confirmations) and marketing campaigns with reliable deliverability and strong inbox placement; it provides a simple RESTful Email API with SDKs for multiple languages, SMTP relay support, and webhooks for event-driven workflows that let developers integrate email into apps quickly and reliably. It also offers tools for reusable templates, contact lists, and segmentation, campaign creation, email automations, real-time logs, deliverability analytics, and engagement tracking so teams can monitor delivery status, opens, clicks, bounces, and suppressions. AutoSend integrates intuitive dashboards that modernize both developer and marketer workflows with features such as migration support from other providers, dynamic suppression lists, personalization, and automation builders, helping organizations streamline email communication.Starting Price: $1 per month -
25
Brevo
Brevo
Say hello to Brevo (formerly Sendinblue) — the platform that helps you build customer relationships across Email, SMS, Chat, and more. The complete toolkit to turn one-time browsers into long-term customers. Connect with contacts directly in their inbox with beautifully designed email campaigns. Send targeted messages that land straight in your customers' pockets. Brevo empowers businesses to build and grow relationships through marketing automation, email campaigns, transactional emails and SMS messages. What makes us different? Brevo is powered by our world-class customer happiness team and we offer pricing plans guaranteed to make you smile. Our platform combines a robust suite of services within a single, user-friendly solution. Happy Sending!Starting Price: €25 per month -
26
EasySendy Pro
EasySendy
Grow the email list from the advanced intended web popup form and keep the subscribers engaged with high-converting email campaigns. Define your own custom fields with customized tags for the email lists in the EasySendy management dashboard. Edit pre-made templates and create your own with the drag-and-drop email builder without any knowledge of writing code! Create compelling content for developing strong relationships with subscribers and experience hassle free email marketing. Track the email campaigns, build email lists, and customize email templates with EasySendy Pro. Add highly customizable EasySendy Web Popup Forms to the website and capture the email drips of your visitors.Starting Price: $19 per user per month -
27
EdisonOS
EdisonOS
Scale your tech company without a dev team. Easily launch educational platforms, craft online courses, sell mock tests, handle live classes, and foster communities, all without coding. From seasoned instructional designers to beginners, EdisonOS provides the best LMS platform for creating online courses. Enhance interactivity in learning with our content authoring tools. Select from over 50 native content options, including flashcards, quizzes, and matching exercises. Host secure, live classes led by instructors. Enhance the learning experience with real-time interaction. Easily craft assessments and mock exams. Offer students a genuine test-like experience with our intuitive builder. A complete ecommerce solution to set up, launch, and scale a profitable knowledge business. Customize and manage your online footprint with a distinctive website that encapsulates your business's core value. Craft engaging emails easily with EdisonOS to keep your learners engaged.Starting Price: $129 per month -
28
Enabler
Pancentric Digital
Supercharge your B2B & B2C comms with email marketing software built by an award-winning email agency. Enabler provides your business with enterprise software, email template design & campaign management services, key features include segmentation, trigger campaigns, personalization, lead scoring, as well as campaign reporting and advanced analytics. Working with renowned brands like Ralph Lauren, Hiscox & RSA, Enabler provides you with a comprehensive GDPR-compliant email solution that drives customer retention and delivers strong ROI. Whether you need sophisticated email software, email strategy or template design, use Enabler. -
29
EmailLabs
Vercom
EmailLabs is part of the Vercom S.A Group, which implements technology solutions in the CPaaS model. We are a cloud SMTP server infrastructure: Cloud SMTP & Email API. With years of experience in sending to the most informed senders, we can make a measurable contribution to building email reputation and improving deliverability. We take care of standardization and security of both marketing, transactional and system messages of our customers. Thanks to the in-depth knowledge of our experts, we are able to prepare the infrastructure to ensure appropriate throughput and increase the sending speed for any market and any mailbox provider. Plug EmailLabs into your transactional sends - start sending in less than 5 minutes.Starting Price: Free -
30
Elastic Email
Elastic Email
Tens of thousands of companies already send their emails with Elastic Email. An amazing Email Marketing platform, built on the most cost-effective Email API. Deliverability, reliability and scalability matter. Easily connect and send your email via our HTTP API or SMTP relay and scale to 100+ million emails per month on our ultra-fast global infrastructure. Build better relationships with your recipients with every campaign you send. Elastic Email provides all the marketing tools you need to help your contacts feel connected. Deliverability, reliability, and scalability matter. Easily connect and send your email via our HTTP API or SMTP relay and scale to 100+ million emails per month on our ultra-fast global infrastructure. Get the most out of your email marketing. Create beautiful emails, send newsletters, and automate your campaigns in a flash.Starting Price: $5 one-time payment -
31
Dialog Insight
Dialog Insight
Dialog Insight is a multi-channel marketing automation platform designed to engage audiences and build lasting customer relationships. It offers features to create, manage, automate, and optimize campaigns via email, push, SMS, RCS, WhatsApp, and more. User-friendly interfaces and tools like surveys, contests, events, forms, and web tracking provide a 360° view of customers. Advanced segmentation targets audiences based on behavior, preferences, and purchase history for relevant communications. Automation features enable complex multi-channel campaigns, delivering the right message at the right time. The platform includes marketing pressure management, customer lifecycle tracking, and performance tracking tools for insights and strategy optimization. Dialog Insight is ISO27001 secure and RGPD compliant, with exceptional customer support. It provides tools for acquiring, retaining, and reactivating customers, ensuring effective and profitable campaigns.Starting Price: $209 per month /194€ per month -
32
Campaign Monitor
Marigold
Turn customers into raving fans with Campaign Monitor by Marigold, a powerful email marketing and automation platform that offers the tools to help drive real, bottom line, business results. With Campaign Monitor, building email campaigns that convert is easy. Simply use Campaign Monitor's drag-and-drop email builder and choose from hundreds of beautiful and professionally-designed templates. The platform also comes with a wealth of tools for creating personalized customer journeys, creating smart segments, and building one-to-one relationships with every email subscriber.Starting Price: $9.00 per month -
33
Everest
Validity
An email success platform like no other. Created by the most respected pioneers of email optimization and deliverability, Everest is the absolute pinnacle of email marketing–the only solution in the world that gives you full control of all critical stages of email marketing: pre-send prep and creation, in-flight optimization, and post-send monitoring. If you’re serious about reaching the top, Everest was made for you. Everest is the only email platform in the market that gives you actionable insight and intel about what’s happening with your campaigns, at all times. Ensuring your campaign is in the best shape possible is crucial to its chances of success. Enhance your campaign performance in real-time, while it’s live. Really. Improve future campaigns by building and maintaining your sender reputation. -
34
Flexmail
Flexmail
Flexmail is a user-friendly and GDPR-compliant email marketing platform from Belgium that helps organisations set up targeted and personalised campaigns. With an intuitive drag-and-drop editor, you can quickly create professional newsletters without any technical knowledge. Thanks to powerful segmentation, you can easily divide target groups based on behaviour, preferences or profile characteristics. Flexmail also offers automated email flows that respond to specific actions taken by your contacts. The software includes forms, landing pages, comprehensive reporting and tracking capabilities. Data is stored securely on European servers, and support is available in Dutch, French and English. Flexmail is ideal for freelancers, SMEs and organisations that value reliable, multilingual support and privacy.Starting Price: $33.95/month -
35
Flowmailer
Flowmailer
-- The email engine you can build on -- We're everything that happens under the hood of your email communications. Reliable Email API with endless capabilities & features ready for integration. Flowmailer's Email Engine provides all the tools you need to build a professional email strategy. From marketing to customer support, from account management to warehousing, every email sent is valuable. Where others choose to focus on an email's looks rather than its performance - we opt for solid email deliverability first. Every email that hits the inbox is a valuable moment between you and your customer. Email Engines change the way we send emails. Ready to create the unparalleled email experience your customers deserve?Starting Price: €89 per month -
36
KumoMTA
Kumo Corp
KumoMTA is an Open-Source, enterprise-grade email message transfer agent (MTA) software for sending high-volume, business-critical emails. KumoMTA is typically chosen by high-volume email users looking to replace PowerMTA, Momentum, or traditional Open Source MTAs. KumoMTA offers high-performance message relay to the tune of millions of messages per hour per server, combined with extreme flexibility and configurability through its use of a Lua scripting engine for configuration and message management. For more information on KumoMTA see our Sourceforge project page.Starting Price: $0 -
37
Kingmailer
KingSMTP.com
KingSMTP.com (formerly known as Kingmailer.co, founded in 2017) is a Transactional SMTP service provider. It’s designed to help businesses reliably send emails such as order confirmations, password resets, or notifications, but it’s not intended for mass email campaigns or marketing.Starting Price: $0 per month -
38
Inxmail
Inxmail
Inxmail is the service-oriented tech specialist for secure, data-driven communication in email marketing. With the modular email marketing platform and excellent service over 2,000 customers realize campaigns and trigger-based transactional emails that ensure sustainable business success. The basis is the potential of your data, simple email creation combined with reliable delivery. Inxmail supports companies to turn recipients into enthusiastic customers since 1999. Since its founding, the principles of the owner-managed company with headquarters in Freiburg have been based on innovation, reliability, and customer proximity. Continuous development of the portfolio and the organization ensure growth and future security. Inxmail places the highest value on data security, legal certainty and hosts its servers exclusively in the EU. As a founding member of the Certified Senders Alliance (CSA), Inxmail has been committed to permission-based email marketing from the very beginning.Starting Price: $0.01 -
39
NoParam
NoParam
NoParam is a powerful email validation API designed to help businesses, developers, and website owners prevent fake signups, reduce spam, and improve email deliverability. By analyzing email addresses in real time, NoParam ensures that only valid and active emails make it through your forms and databases. NoParam is built for seamless integration with platforms like WordPress, Mailchimp, and HubSpot, making it easy to validate emails directly within your existing workflows. Our API is developer-friendly, with clear documentation and straightforward implementation across different programming languages. Privacy and security are at the core of NoParam. We do not store sensitive email data, ensuring compliance with GDPR and other data protection regulations. With a fair and transparent pricing model, NoParam is accessible to businesses of all sizes, from startups to enterprises.Starting Price: $29/month -
40
Nautilus
Nautilus
Powerful email marketing. Leverage the power of Nautilus to grow, engage, nurture & manage your audience on a mass scale. Create personal interactions and influence your audience on auto-pilot. Turn website visitors into leads, capture their information and send them super personalized, responsive and beautiful emails in just a few clicks. Be marketing responsive. Trigger personalized emails based on your subscribers actions and send them relevant automated follow-ups. Get a better understanding of your audience, segment it into targeted groups and improve email engagement and inbox delivery rate. Communicate messages to your target audience in mass. broadcast engaging campaigns to your audience and scale your most successful ones.Starting Price: $9/user/month -
41
Mailazy
Mailazy
Our mission is to empower customers with a simple email communication platform that delivers without a barrier in a cost-effective way. Mailazy offer fats email delivery, high deliverability, customer support, and prices that won't drain your budget. Our globally distributed cloud infrastructures remove email delivery complications of large-scale email sending. Keep improving your email performance by accessing a wide range of key metrics to learn what works and what needs optimization. Get real-time notifications about events. Simply configure your endpoints, the events you want to track, and the automated response. Mailazy email API is specifically built for developers to provide easy integration and fast email delivery.Starting Price: $ 99 per month -
42
Mailchimp Transactional Email (Mandrill)
Mailchimp
Transactional emails: Reach inboxes when it matters most. Deliver fast, personalized transactional emails using API or SMTP. Get the benefits of our experience sending billions of emails globally. Send personalized transactional emails that reach inboxes, not spam folders. Customize your analytics with pre-built dashboards, export API, and more. Read documentation guides, or contact our award-winning Support team for help. Use custom tagging, whitelabeling, conditional content, and more. Globally distributed infrastructure: Featuring automatic SPAM loop registration and pre-warmed dedicated IPs. Get analytics in multiple ways, plus custom tags, A/B test capabilities, and comparative reports. Utilize white-labelled click tracking, custom reverse DNS, rules engine, custom return path, and sub-accounts. That’s the average time to delivery for top 3 ISPs, sent from our MTAs to the recipient’s email server. -
43
Mailcot
Mailcot
Email Marketing Services allows your business to email the consumer whenever you want. While not every email needs to be a sales pitch, your contact with the customer should provide something of value to them. If you are looking for a Transactional SMTP service, then you probably have an application that sends out either marketing or transactional messages and is searching for a host to relay these messages in bulk. Create fully automated campaigns with the world’s most intuitive workflow builder. Apply tags, trigger campaigns, add delays, branch with if-then logic, and do about 30 other things. With powerful functionality that allows businesses to move quickly. Drive more sales with email marketing that really resonates. Nurturing your leads with our platform , give points and covert it from lead to customers.Starting Price: $7.19 per month -
44
MailerCheck
MailerCheck
MailerCheck is an all-in-one email deliverability platform that helps businesses optimize their campaigns and email configuration. With the email verification tool, users can upload a single email or entire email list and analyze it to find problematic and invalid emails to be removed to keep sender reputation intact and improve deliverability. The Email Insights module provides a campaign analytics tool that lets businesses checks for spam, validate HTML, troubleshoot sender authentication, and more on a centralized platform. Switch to Inbox Placement and you can check whether your campaign will land in the inbox, promotions or spam folder of leading mailbox providers. MailerCheck has native integrations with email marketing platforms such as MailerLite, Mailchimp, ActiveCampaign and more. Businesses can also utilize the email verification API for real-time validation within their website or app, and Zapier to integrate the platform with thousands of other apps.Starting Price: $10.00 -
45
MailerLite
MailerLite
MailerLite is an email marketing platform that helps creators, small businesses, and ecommerce stores grow their audience and boost revenue—effortlessly and on their terms. Capture leads in style: Turn visitors into subscribers with landing pages, forms, and pop-ups. 150+ templates, AI-powered magic content generation, and full customization options make creating a joy. Monetize with 0% commission: Sell paid newsletters, digital products, and 1-1 or group bookings through MailerLite—with 0% commissions. Replace expensive third-party scheduling tools with a native system that keeps your revenue in your pocket. Personalize like never before: Use multi-trigger automations, machine learning, and unlimited segmentation to create tailored experiences. Bookings syncs with your Google or Outlook calendar, automatically triggering nurture sequences the moment a client schedules a session. Start your 14-day free trial. Our support team is ready to help!Starting Price: $10.00/month -
46
MailerSend
MailerSend
MailerSend is a transactional email and SMS service designed for developers to work faster and smarter. A drag & drop builder and dynamic templates enable anyone at any skill level to create personalized transactional emails, while our SMS templates help you create professional transactional SMS messages. MailerSend’s advanced infrastructure scales with your sendings, while the latest security protocols protect your sender reputation. Plus, you can integrate your email sending and tracking in your apps using SMTP or a flexible email API. Built by deliverability experts, and with the inbuilt email verification tool, you can rest easy knowing your messages will be delivered and avoid spam folders, while dedicated IPs are available for high-volume senders. Plus, inbound routing enables your customers to interact with your messages, sparking conversations and increasing engagement. Get started for FREE with 500 emails, then upgrade for as little as $7/month for up to 5000 emails.Starting Price: Free -
47
Netcore Email API
Netcore
Choose the best email API or SMTP for the most robust email delivery experience. Netcore Email API (formerly known as Pepipost) provides a powerful transactional email delivery infrastructure and AI-powered inboxing which is reliable, scalable, secure and easy-to-use, at the most affordable pricing plans. We help brands to engage with their customers at the right moment with the right content over emails.Starting Price: $25 per month -
48
Labnify
Labnify
Labnify provisions email API and SMTP-integrated mailer so you won't need any of those pesky SMTP credentials. A system that delivers and track mass emails reliably enriched with features like real-time analytics, open/click metrics, bounce/spam tracking, template builder, and more. No one likes being blacklisted. That's why our innovative blacklist monitoring feature keeps a watchful eye on your sending reputation, ensuring your emails always land in the recipient's inbox. Plus, Labnify takes email authentication seriously, utilizing DKIM/SPF authentication to enhance your deliverability and add that extra layer of security. Millions of emails have relayed via Labnify as it's easy to work with. Simply import your email list and hit SEND without the need for an SMTP credential, making it a 2-in-1 email marketing stack. Built on the most cost-effective Email API, deliverability and scalability matter. Easily connect and send your email using our automated system and scale.Starting Price: $99/month -
49
Maileroo
Maileroo
At Maileroo, we provide a powerful platform for both SMTP relay and email marketing. We ensure fast, reliable email sending with real-time tracking of deliveries, clicks, opens, and bounce rates. With our free Email Verification API, dedicated IPs, and DNS Records for sender authentication, we help reduce bounced emails and improve deliverability. Our email marketing platform makes it easy to create and manage campaigns. You can personalize emails, use our drag-and-drop email templates, form builders, and flexible Contacts API. We provide real-time statistics and in-depth analytics to help you optimize your campaigns and boost engagement. We also offer seamless DNS setup, automation tools, multi-sender identities, and efficient contact management. Whether you're a small business or growing enterprise, Maileroo offers budget-friendly pricing and everything you need to scale your email marketing, making it a smart choice for businesses of all sizes.Starting Price: $10 per month (25,000 emails) -
50
Mailgun
Sinch
Mailgun is an email automation solution that is suitable for developers. With Mailgun, users are able to access a complete cloud-based email service for tracking, sending, and receiving emails sent via their applications and websites. Mailgun supports several programming languages including Python, Ruby, PHP, Java, and C#. With Mailgun's tracking feature, users are able to track all emails and reduce the chances of getting spam.Starting Price: $0.01/month/user
