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A dev-first Resend alternative

Simple email sending with advanced features you can quickly integrate into your app with SDKs for your favorite languages.

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Built for developers, designed for teams

MailerSend integrates quickly into your tech stack, scales with your sendings, and ensures that your emails get delivered.
The ease of integration is super. I write predominantly in Golang for back-end services, and I had MailerSend integrated in about sixty seconds flat. I work on small projects, which typically need to move fast, and I've moved to MailerSend for all transactional email services.
Super easy-to-use API for devs and user-friendly mail templating for designers. I love the fact that we can define data from the dashboard and simply call it with the API from the backend to easily send emails. Devs don't need to do design work and designers don't need to code. It's awesome!
Raphael A. CTO
I set it up in one day. I had a delay because I'm using Cloudflare and forgot to set my DNS records to "only dns" to bypass their proxy. As soon as I did it, my account was active and ready to be tested. After sending 20-30 emails I applied the "upgrade" for the free plan, and that was it. It's been working with great deliverability rates since.
David S. Director

An API you can integrate in minutes

Our email API makes transactional messaging hassle-free, whether you need basic or advanced functionality. Choose from our multiple SDKs to get started.
Read our API docs
curl -X POST \
https://api.mailersend.com/v1/email \
    -H 'Content-Type: application/json' \
    -H 'X-Requested-With: XMLHttpRequest' \
    -H 'Authorization: Bearer {place your token here without brackets}' \
    -d '{
        "from": {
            "email": "your@email.com"
        },
            "to": [
        {
            "email": "your@client.com"
        }
        ],
        "subject": "Hello from MailerSend!",
        "text": "Greetings from the team, you got this message through MailerSend.",
        "html": "

Greetings from the team, you got this message through MailerSend.

" }'
use MailerSend\MailerSend;
use MailerSend\Helpers\Builder\Recipient;
use MailerSend\Helpers\Builder\EmailParams;

$mailersend = new MailerSend(['api_key' => 'key']);

$recipients = [
new Recipient('your@client.com', 'Your Client'),
];

$emailParams = (new EmailParams())
->setFrom('your@email.com')
->setFromName('Your Name')
->setRecipients($recipients)
->setSubject('Subject')
->setHtml('

Greetings from the team, you got this message through MailerSend.

') ->setText('Greetings from the team, you got this message through MailerSend.'); $mailersend->email->send($emailParams);
php artisan make:mail ExampleEmail

Mail::to('you@client.com')->send(new ExampleEmail());
const Recipient = require("mailersend").Recipient;
const EmailParams = require("mailersend").EmailParams;
const MailerSend = require("mailersend");

const mailersend = new MailerSend({
    api_key: "key",
});

const recipients = [new Recipient("your@client.com", "Your Client")];

const emailParams = new EmailParams()
    .setFrom("your@email.com")
    .setFromName("Your Name")
    .setRecipients(recipients)
    .setSubject("Subject")
    .setHtml("

Greetings from the team, you got this message through MailerSend.

") .setText("Greetings from the team, you got this message through MailerSend."); mailersend.send(emailParams);
package main

import (
    "context"
    "fmt"
    "time"

    "github.com/mailersend/mailersend-go"
)

var APIKey string = "Api Key Here"

func main() {
    ms := mailersend.NewMailersend(APIKey)

    ctx := context.Background()
    ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
    defer cancel()

    subject := "Subject"
    text := "Greetings from the team, you got this message through MailerSend."
    html := "

Greetings from the team, you got this message through MailerSend.

" from := mailersend.From{ Name: "Your Name", Email: "your@email.com", } recipients := []mailersend.Recipient{ { Name: "Your Client", Email: "your@client.com", }, } variables := []mailersend.Variables{ { Email: "your@client.com", Substitutions: []mailersend.Substitution{ { Var: "foo", Value: "bar", }, }, }, } tags := []string{"foo", "bar"} message := ms.NewMessage() message.SetFrom(from) message.SetRecipients(recipients) message.SetSubject(subject) message.SetHTML(html) message.SetText(text) message.SetSubstitutions(variables) message.SetTags(tags) res, _ := ms.Send(ctx, message) fmt.Printf(res.Header.Get("X-Message-Id")) }
from mailersend import MailerSendClient, EmailBuilder

ms = MailerSendClient()

email = (EmailBuilder()
         .from_email("sender@domain.com", "Your Name")
         .to_many([{"email": "recipient@domain.com", "name": "Recipient"}])
         .subject("Hello from MailerSend!")
         .html("

Hello World!

") .text("Hello World!") .build()) response = ms.emails.send(email)
require "mailersend-ruby"

# Intialize the email class
ms_email = Mailersend::Email.new

# Add parameters
ms_email.add_recipients("email" => "your@client.com", "name" => "Your Client")
ms_email.add_recipients("email" => "your@client.com", "name" => "Your Client")
ms_email.add_from("email" => "your@domain.com", "name" => "Your Name")
ms_email.add_subject("Hello!")
ms_email.add_text("Greetings from the team, you got this message through MailerSend.")
ms_email.add_html("Greetings from the team, you got this message through MailerSend.")

# Send the email
ms_email.send
A graphic showing the SMTP section and credentials in MailerSend.

Create simple SMTP integrations

Skip the external libraries and create simple email systems quickly and easily with SMTP.  Just enter your SMTP credentials into your app, website, or plugin to start sending.

Fast and friendly support 24/7

Whether you’re just starting out or a well-seasoned sender, our award-winning customer support team is on hand and ready to assist.

93% satisfaction rate
100% response rate
24/7 support hours
A graphic showing the domain verification page and automation domain detection.

Automatic domain verification

Seamlessly add DKIM, SPF, and RETURN-PATH authentication records to your DNS without leaving the MailerSend app, via a secure connection with Entri.

The information available in MailerSend activity logs, including response code, endpoint, and IP address.

Detailed activity logs

Easily troubleshoot sending issues with full visibility into sending activity and errors. Get in-depth information about each email sent including error codes, endpoints, user agents, and more. 

A look at MailerSend's API documentation and SDKs.

Comprehensive documentation from start to finish

We’ve got guides to help you every step of the way. Access extensive API documentation, developer quick-start guides and more.

A graphic showing the webhook feature in MailerSend.

Straightforward webhook configuration

Get real-time notifications triggered by webhook events to monitor sending activity and task status.

A graphic showing the inbound routing feature in MailerSend and inbound routing code.

Inbound message processing

Manage incoming messages and forward them to an email address or endpoint. Improve workflows and create in-app, email-based functionality.

A graphic representation of dedicated IP.

Dedicated IPs

Dedicated IP addresses are available for high-volume senders with an Enterprise account, who prefer to take full control of their sender reputation and deliverability. 

A graphic representation of a transaction shipping notification SMS and the code.

Transactional SMS API

Integrate high-volume, toll-free text messages with our SMS API and send OTPs, 2FA texts, reminders, and more. Currently available in the U.S. & CA.

Pricing

Four simple plans, no hidden costs. Start with 500 emails/month for free and upgrade when you need more volume or features.
How many emails do you plan to send?
3K
Pricing in Euros and British Pounds is for informational purposes only. All billing invoices will be charged in US dollars.
Recommended
Professional

For agencies and white-label resellers sending at scale

$88.00 /month
$1,056.00 billed yearly
81.12 /month
€973.39 billed yearly
£68.23 /month
£818.79 billed yearly
$110.00 /month 101.39 /month £85.29 /month
50,000 emails /month
150 SMS /month
400 email verification credits
Extra usage
$0.90 0.90 £0.90 /1,000 emails
$1.40 1.40 £1.40 /100 SMS
Recommended
Starter

For growing startups and small businesses

$28.00 /month
$336.00 billed yearly
25.81 /month
€309.71 billed yearly
£21.71 /month
£260.53 billed yearly
$35.00 /month 32.26 /month £27.14 /month
50,000 emails /month
100 SMS /month
100 email verification credits
Extra usage
$0.90 0.90 £0.90 /1,000 emails
$1.40 1.40 £1.40 /100 SMS
Recommended
Hobby

For personal projects and side hustles

$ 5.60 /month
$67.20 billed yearly
5.15 /month
€61.83 billed yearly
£4.43 /month
£53.18 billed yearly
$7.00 /month 6.44 /month £5.53 /month
5,000 emails
100 email verification credits
Extra usage
$1.20 1.20 £1.20 /1,000 emails
Free

For occasional email testing and sending

$0
500 emails
10 email verification credits
Enterprise

For large organizations with special requirements

Designed for scale — includes everything in Professional, plus:
  • 14-days API logs retention
  • Enterprise-grade support
  • Dedicated IP
*Learn more about plan limits.   |   Taxes may apply, learn more.

Send transactional emails in 5 minutes

Step 1

Sign up for free

Step 2

Send an email from the trial domain

Step 3

Try out the features & check your activity

How MailerSend features compare with Resend

MailerSend
Email API, SMTP relay
Webhooks 50 10
SMS API
Email Marketing SSO
Inbound routing
Suppression list management
Email tracking & analytics
Data retention 7 days 3 days
Email split testing
Drag & drop template builder
HTML template editor
GDPR compliance
2FA
API permissions
IP allowlist
Premium IP pool management
Dedicated IP address Available for high-volume senders Available for high-volume senders
Deliverability consultation Available for Professional and Enterprise
iOS app
Email verification
Slack integration
24/7 email support Limited email/ticket support available
Live chat support
Multiple users 5 5
User roles 5 roles and custom options are available
Multiple domains 10 10
MailerSend

Integrations

Easily connect other web apps with MailerSend so they seamlessly work together to share information, automate workflows and enhance your customer experience.

FAQs

What is Resend?

Resend started out as an open source project, and has since become an email service provider made for developers to integrate transactional and marketing emails into their app or website.

Can I easily migrate from Resend to MailerSend?

We’ve made it super easy to get started with MailerSend; simply sign up for a Trial account and test out our capabilities with a trial domain. You can then subscribe to a free or paid plan, verify your domain, and use our API and integrations to implement MailerSend into your system. 

What are the main differences between MailerSend and Resend?

While both solutions are built for developers, MailerSend is a solid Resend alternative as it offers a more user-friendly and intuitive interface and features to allow other non-technical team members to contribute to tasks such as template creation. MailerSend also offers a transactional SMS API, pre-built email templates, inbound routing, email verification, and other features. 

Is MailerSend suitable for high-volume sending?

Yes, MailerSend’s infrastructure is built to handle high volumes of emails. 

Switch to MailerSend today

Sign up free—no credit card needed—and start testing immediately with a trial domain. Like what you see? Subscribe to a free or paid plan, verify your domain, and start sending!