Mailchimp Transactional Email (formerly Mandrill) Alternatives (September 2025)

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

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

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.

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.

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

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.

Discover AhaSend, the Email Service Provider dedicated to revolutionizing transactional emails. Enjoy hassle-free pricing at $0.50 per 1,000 emails and experience unmatched delivery times. No hidden fees, no brackets, just straightforward service designed for your peace of mind.

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

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!

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

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!

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

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!

Explore AuthMailer transactional email service! Discover its features, pros, and cons to send transactional emails.

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

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

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

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.

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

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

Email delivery, perfected with Mailtinni! 💌 Your new SMTP service: fast, reliable, highly secure. 🚀

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

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

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.

Clean your email list with Mailercheck's email verification tool and improve deliverability with our email testing suite to boost email marketing ROI.

Integrate seamlessly with Netcore's Email API for scalability, high deliverability, & real-time analytics. Designed for developers.

Improve domain reputation and increase the quality of your mailing list by validating emails before sending a campaign, or at the point of capture.

Simple and powerful email verification JSON API using SMTP, typo checks, syntax validation, and free and disposable provider filtering. Free for personal use.

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

The powerful email verification tool helps you validate and clean your email list seamlessly, ensuring verified email subscribers and high deliverability.

Whether you need to attract new customers with your next hot promotion or reliably communicate with your existing customers, Mailrelay is your best choice.

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

Verify your email list in minutes, or integrate real-time email verification into your app with our API. Over 18 billion emails verified. Get started for free.

MailChannels ensures your customers' emails are always delivered. Trusted by the fastest-growing hosting providers.

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

Explore Zender transactional email service! Discover its features, pros, and cons to send transactional emails.

The best email deliverability tool to raise your reputation and stop landing in spam. Reach the inbox and get better email results with MailReach.

Boost your email deliverability and engagement with Inboxroad. Our comprehensive solutions and expert guidance ensure your messages reach the inbox - Inboxroad

Delivering dynamic email templates for receipts, invoices, and notifications from Stripe events. In other words, we take the hassle out of managing email responses to your Stripe customers.

Test new user signups, transactional emails, spam scores, and more. Get started on our free forever plan with unlimited email addresses and mailboxes.

See why the best things in life are Mailchimp stores. Build your free online store today.

Mailinator provides Email and SMS Workflow Testing for Developers, Dev Teams, and QA Testing. Automate testing for 2FA and password resets.

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.

Over 31,000 companies from 20 countries worldwide are already using KIRIM.EMAIL as their email infrastructure to generate more sales, build apps, and build

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

Track and optimize email deliverability - from inboxing and open rates to blocklist monitoring, engagement levels and growth rate.

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

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

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

Improve domain reputation and increase the quality of your mailing list by validating emails before sending a campaign, or at the point of capture.

Email Validation and Verification, Email Checker and Bulk Verify Tool. Using DeBounce remove invalid, disposable, spam-trap, syntax and deactivated emails.

Free real-time email verification service. Easy to use. Start using in 30 seconds

Bouncify is a Leading provider of bulk email list cleaning and email verification service. Run our bulk email verification tool through your list of emails to remove hard bounces and keep your mailing list clean and engaged with 99% accuracy. We provide email list validation to marketers from all countries.

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.

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.

Mailcheck is an easy-to-use, fast, and efficient email validation tool with an API integration feature for on-the-go validation.

Ensure deliverability and inbox placement for your transactional emails with Oracle Cloud Infrastructure Email Delivery, based on Dyn's Email Delivery technology.

Send professional bulk emails in no time with Selzy email marketing service. Track statistics. Conduct A/B-tests. Automate campaigns. 1500 emails free.

Keep your email list clean with our bulk email verification service. Verify daily 100 email address for free and avoid sending emails to spam / invalid account.

Random email address and phone number generators. Use SMS and email in otp tests, 2fa verification, and marketing.

Improve your email deliverability with Bouncer's robust email verification and deliverability platform. 🌐

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!

Optimize your email strategy with ZeroBounce. We offer top-tier email validation, list cleaning, and address verification to reduce spam traps and enhance deliverability.

Set up email forwarding in seconds and start receiving and sending emails with your domain name. Absolutely free. No registration. 24/7 Support.

Email Address Validation and Email List Cleaning Service reduces bounce rates. Quick Email Verification Service is the right platform to verify email list and improve deliverability.

Launch Your Own Email Service Provider and Email Marketing Agency. Sell it to your customers and clients, or use it in-house.

Streamline your emailing and boost your sales with Mailzy. Create, send and track email newsletters with one simple and powerful service.

Email deliverability software guaranteed to boost email placement. InboxAlly’s real-time tracking and email warmup ensure your messages hit the inbox, not spam.

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

MailboxValidator email validation clean email lists and reduces bounce. It connects to the mail server and checks whether the mailbox exists or not.

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.

Mailmunch captures leads from your website and converts visitors into life-long readers, email subscribers and customers.

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

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

With Constant Contact, you can create effective email marketing and other online marketing campaigns to meet your business goals. Start your FREE trial today!

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.

A simple, yet effective platform that helps you send the right email campaign to the right audience at the right time. Sign up today and see how.

Create your own marketing strategy Send in seconds Send & analyze email marketing campaigns. Start your free plan with unlimited credit. Free for a lifetime! Sign up for free See pricing INBOX is an email marketing tool with more powerful features and flexibility than any other Easy To Use Create a campaign in | Create email marketing your subscribers will admire INBOX

Bulk email verifier. Get rid of spam traps, bounces,and disposable emails. Start with 100 FREE email validations! Secure & accurate bulk email validation

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?

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

Speed up email creation with Beefree's drag-and-drop, no-code HTML email builder and editor. Compatible with your favorite sending platform. Sign up for free!

Send mass emails with highest deliverability directly from Google Sheets

Take your email outreach to new heights with trusted email deliverability software. Start today and watch your inbox placement rates soar.

Buy SMTP service. 99% Inbox. Free to test. Best price/quality SMTP offer. Buy with Bitcoin. Send, receive, route/forward emails.

EmailSuccess is a reliable, fast and secure Mail Transfer Agent capable of delivering huge volumes of emails to the biggest email service providers.

The only deliverability tool you need. Find out why your email is going to spam and protect your sender reputation

Take your email deliverability to the next level with AI-powered email warmup for unlimited mailboxes and comprehensive deliverability tests

Validate users across SMS and preferred channels at scale with the Twilio Verify API, a turnkey, passwordless authentication solution that enables seamless and secure user onboarding, reduces fraud, and optimizes delivery rates without the heavy lifting. Twilio handles all your connectivity, channels, OTP generation, and more—so you don’t have to.

Email Mailing List Manager. Easy To Use and Extendable

Manage and email your subscribers for far cheaper with EmailOctopus. Drag and drop email builder, powerful analytics, bounce/complaint tracking and more.

The most accurate email validator algorithm to identify and remove bad email addresses. Best sales starts with a better email deliverability. Enjoy a free trial.

MassMailer provides the best Mass Email solution for Salesforce CRM customers whose marketing, sales, and other teams need to send and track mass emails.

With many people opening your messages, boost customer engagement and satisfaction. Send promotional or transactional SMS.

Flodesk makes simple, intuitive software tools to help you grow your business. Try it free for 30 days—no credit card required.

Magnetic Mailer is one of the Best AWS SES Email Sending Software available in the market. You can also use SendGrid API, Elastice Mail API and SMTP Settings.

Sending marketing emails is easy with iContact’s business email platform. Go from signing up to sending emails in minutes. No marketing experience required, no strings attached.

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.

Marketing Campaigns makes it easy to design, test, optimize and scale email campaigns. Reach the inbox with Twilio SendGrid. Try it free!