
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 for those under their enterprise plan. 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.
Answers on ownership, domains, support, data residency, testing tools, and switching from Resend.
Maileroo is a private company based out of Australia that is completely bootstrapped and independently owned by Areeb Majeed and Patrick Yammouni. Resend is a venture-funded company that was founded by Zeno, Bu and Jonny.
Maileroo offers unlimited domains across all its paid plans with our free plan being capped at 2 custom sending domains. Resend offers up to 3 custom sending domains on the free plan with their paid plans allowing only up to 10 and then scales to 1000 in larger plans. You can top-up your domains with Resend but additional monthly costs.
Maileroo offers both ticket and live support to all plans both free and paying which they can engage with 7 days a week. We also offer an AI assistant who is equipped with knowledge from both our general and technical documentation that can assist you with your questions instantly. Resend offers tiered support, with ticket only support available on their free and pro plan, with a dedicated slack support chat available for scale and above available.
Maileroo stores its data in the EU with full redundancy and GDPR compliance, whilst Resend stores their data in the US.
Yes. Maileroo has a wide range of testing tools both widely used and unique to our platform that can help you uncover issues with your sending, setup and systems.
We have had many users come from Resend and switch over in minutes. From simple SMTP credential changes to quick changes in their Email API implementation with our SDKs, we make it very simple and alongside our technical support regardless of your plan, we can help guide you in real-time.
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 MajeedEmail delivery is now 20 to 40% faster thanks to improvements to our spam-filtering algorithm. Reduced filtering time helps messages reach inboxes sooner.
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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.