
SMTP Relay & Email API
Two ways in. Drop our SMTP credentials into any app, or call the Email API directly. Both take minutes, both just work.
Built for developers who want an all-in-one email platform that is easier to use, flexible enough to scale, and easier on the wallet. Switch to Maileroo and save up to 60% on your monthly email costs compared to Resend.
Special Offer: Get 50% off your first 3 months on any paid plan with code THR33!
Tired of email platforms that feel like a pretty wrapper around AWS SES? Maileroo is built by people who live and breathe email. We run our own infrastructure, keep setup clear, and give you hands-on support whenever you need it. Created by developers for developers, Maileroo makes integration feel straightforward.
Plans start at $10 a month. We hold that price by running our own hardware instead of reselling AWS, so there is no middleman markup as your volume climbs.
Pass 250,000 emails a month and a dedicated IP is included, not upsold. Your reputation stays out of the shared pool and inbox placement holds steady.
Deliveries, opens, clicks, and bounces land in the log the moment they happen, searchable for 14 days. When something breaks, the event trail shows you why.
Drop in the SMTP credentials or call the API. Most apps send a first email in about five minutes, and the docs assume you have a backlog, not a free afternoon.
SMTP relay, REST API, inbound routing, webhooks, analytics, testing tools and suppression management live in one dashboard. You get a single view of every email without stitching separate tools together.
Restrict SMTP access by IP or domain and scope each credential to what it needs. You can even control what access your team-members have inside your sending environments too. The controls are built in, so tightening security never means a migration.
Pricing starts at $10 a month and stays flat as volume grows. Support is staffed by engineers who have shipped production email and read your logs before they reply.
Resend is backed by venture funding, known in the community for its React Email and its user-friendly dashboard. It is a genuinely strong product wrapped behind the AWS SES infrastructure for sending that gives it a trusting position in the industry.
Maileroo is a completely bootstrapped startup, founded and operated by Patrick Yammouni and Areeb Majeed. Both come from development backgrounds and have built the infrastructure, product, and support system from the ground up with every feature you see shipped because a customer asked for it, not because it fit a roadmap set by outside investors.
That difference shows up in two concrete places of where your data lives, and how fast you get a real answer when something breaks. Resend stores account data, metadata, and logs in the United States. Maileroo stores everything inside the European Union which matters if GDPR data residency is a requirement for your business, not just a preference.
Resend's support window runs 1 PM to 12 AM GMT, Monday to Friday. Maileroo's runs 9 AM to 9 PM AEST, seven days a week, including weekends, when production issues don't wait for business hours.
We publish our actual response times because we track them: 33 minutes average first response by email, 12 minutes average on live chat, and 1.5 hours average to full resolution.
Every conversation, whether email or live chat, is handled by a technical engineer, not a first-line support rep reading from a script. When we're offline, Joey AI is trained specifically on email infrastructure and deliverability, so you're not stuck waiting until morning for a routing or DNS question.
Maileroo has one of the largest catalogues of email testing tools that help you test nearly every aspect of your email delivery and infrastructure to ensure that you are getting the best out of your email system. When we say we support you in your emailing journey, we absolutely mean it.
At Maileroo, we promote an uptime SLA guarantee of 99.9% whilst Resend does not publish one alongside its status page. Whilst we both have our server uptimes publically available, we also engineer our infrastructure around a redundant setup to ensure that your emails are delivered.
Resend has a larger catalog of community-maintained SDKs across more languages. Maileroo currently ships 6 official SDKs, with community-built libraries growing alongside them with fewer options today than Resend, but each one maintained directly by our own engineering team rather than the community alone.
Switching over from Resend to Maileroo can be done in 60 seconds if using SMTP credentials or in minutes if using our email API. We provide you with ready-to-paste code snippets that you can use to migrate once you have added and verified your domain with us.
Discover how Maileroo compares across pricing, developer experience, deliverability, integrations, analytics, and platform capabilities to help you choose the right solution.
Drop in SMTP credentials or use the API. These snippets get you sending from Resend to Maileroo in minutes after your domain is verified, with tested, ready-to-paste examples for Node.js, PHP, Laravel, Python, Java, Go, Ruby, and plain cURL.
1const nodemailer = require("nodemailer");2 3const transporter = nodemailer.createTransport({4 host: "smtp.maileroo.com",5 port: 587,6 auth: {7 user: "YOUR_SMTP_USERNAME",8 pass: "YOUR_SMTP_PASSWORD"9 }10});11 12transporter.sendMail({13 from: "Maileroo <[email protected]>",14 to: "A Test User <[email protected]>",15 subject: "Hello from Maileroo",16 text: "This is a test e-mail message."17});18 Send with confidence, track every message as it moves, and tune your performance. One platform, built developer-first. And deliverability? We fine-tune it obsessively behind the scenes, so your emails land where they should.

Two ways in. Drop our SMTP credentials into any app, or call the Email API directly. Both take minutes, both just work.

Sent, delivered, opened, clicked: watch every event the moment it happens. When something breaks, the logs tell you why.

Open rates, click rates, bounces, complaints. The numbers you need to sharpen your sending, all in one dashboard.

Push bounces, opens, clicks, and deliveries straight into your application the instant they happen. Your app stays in sync without polling.

Put tracking links on your own domain. Better brand consistency, better deliverability. SSL is provisioned for you, and setup takes one click.

Retire the no-reply address. Replies land in your inbox, routed by Maileroo, so real conversations can happen.
Get 3,000 emails a month on us, with no daily cap. Paid plans start at $10. Upgrade only when your sending needs the room.
Pick a plan based on how many emails you send each month. You can upgrade, downgrade, or cancel anytime. No lock-in, no hidden fees.
We're a small team, which means when you write in, you're talking to someone who works on the product. Startups, agencies, and growing businesses stay with Maileroo because the support is real, the pricing is honest, and the infrastructure holds up.
"I love it as an SMTP service for transactional emails. The app is fast, easy to understand and fully featured, but not overwhelming, and email delivery is super fast and reliable. Just perfect! Every time I needed to request a feature or inquire about something with the team, they responded quickly and satisfactorily, both in their Discord channel and via email."

"I have been a Maileroo customer for almost 2 years now and I am very satisfied: Sending emails is super fast and reliable. The support is great and fast (usually within 1 hour). The interface is functional yet easy to use. You pay much less at Maileroo than at other providers without compromising on quality. In short, a great company to work with as an agency!"

"Using Maileroo for half a year now. Api and its documentation is simple, straightforward and just works. What truly makes the difference is the fast, personal support. Support is always quick to respond and to find a solution. Requests or suggestions are taken seriously and often translated into practical improvements. That level of personal involvement and service is rare and makes Maileroo a solution I can confidently recommend. Experience with mailgun, mailjet, sendgrid, resend and Maileroo takes the cake."

Areeb MajeedMaileroo MCP is now available through the Claude connector. Use it to send emails, manage accounts, create keys, and access all account functions. Learn more about the integration .
Areeb MajeedIntegrations are now available on the customer dashboard. Can’t find your favorite SDK or library? Joey can generate it for you using our API documentation.
Areeb MajeedBrowse 200+ free email templates designed for newsletters, promotions, transactional emails, announcements, and more. Preview each template before using it, then download it and customise it for your…
The deliverability problems that pushed these teams off their old provider, the work it took to migrate, and the numbers they're seeing on the other side.
Enabling a modern mortgage broker to deliver secure transactional emails with dependable infrastructure and consistent performance nationwide every day.
Supporting a creative web studio with dependable email delivery and flexible infrastructure for cultural organizations across Canada.
Helping a Melbourne digital agency improve email deliverability with reliable infrastructure and seamless WordPress integration for client projects of every size.
From deliverability and infrastructure to pricing and integrations, here's what developers ask us most before they send their first email.
Maileroo is an email delivery platform designed to help businesses send both transactional and marketing emails reliably and at scale. We provide a simple yet powerful API, SMTP integration, and a user-friendly dashboard that makes it easy to manage your email communication from a single place. With a focus on deliverability, security, and ease of use, Maileroo handles the complexities of email infrastructure so you can focus on your product. From startups to enterprises, Maileroo offers scalable plans and dedicated support to ensure your emails reach the inbox every time.
Maileroo supports both transactional and marketing emails. You can send transactional emails such as password resets, order confirmations, invoices, and notifications, as well as marketing emails to users who have explicitly opted in to receive them. Whether you're sending automated system emails or managing marketing campaigns, Maileroo provides the tools to automate all of your email communication from a single platform. If unsure about the type of email you're sending, you can always contact our support team for guidance.
Maileroo is built with deliverability at its core. We use strict account verification, continuous monitoring, intelligent automation, and proprietary abuse detection to protect our sending reputation and reduce spam. Combined with automatic suppression handling, SPF, DKIM, and DMARC support, and ongoing infrastructure maintenance, these safeguards give legitimate senders the best chance of reaching the inbox.
Maileroo's infrastructure is strategically hosted in Germany, Netherlands, Finland and France, providing exceptional performance, reliability, and security for customers worldwide. Our infrastructure is fully GDPR compliant, ensuring your data is handled in accordance with strict European data protection regulations. With enterprise-grade security and modern data centers, you can trust that your data is safe with us.
Maileroo provides support through live chat and email, with our team based in Australia to provide both general and technical assistance. Our team is available from 9 AM to 9 PM Melbourne time. Whether you need help with setup, configuration, integrations, or troubleshooting, our experienced team is available to help you get connected and running smoothly. We understand that email infrastructure is critical to your business, which is why providing fast, knowledgeable support is a key priority for us. Our team has the technical background to assist with complex setups and ensure you have the support you need when you need it.
All Maileroo plans include a monthly email quota. If you exceed your allocated quota, any additional emails will not be sent until your quota resets or your plan is upgraded. For paying users, we include a 12% buffer on your monthly quota, giving you extra flexibility in case of unexpected spikes in sending volume. In addition to monthly limits, we apply an hourly sending limits to accounts as a security measure to help protect our sending infrastructure and maintain deliverability. These limits can be easily increased through your dashboard by submitting a request, and our team can quickly review and adjust them to ensure your email sending is not impacted.
We accept credit card or debit card including Visa, Mastercard and American Express, along with PayPal and cryptocurrency payments.
Yes, Maileroo is built to support businesses of all sizes, from startups and small teams to agencies and large enterprises. We offer scalable plans starting from a free 3,000 emails per month option through to custom solutions designed for businesses sending millions of emails and beyond. Our infrastructure is built to scale with your growth, providing reliable email delivery, flexible sending capacity, and the tools needed to power email communication for businesses of all sizes.
Yes. Non-profits and open-source projects get 50% off every Maileroo plan. Get in touch with a short note about what you're building and we'll set it up. No lengthy application, no annual commitment.