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Created by the deliverability experts

MailerSend integrates quickly into your tech stack, scales with your sendings, and ensures that your email gets delivered.

We switched to MailerSend while sending more than 20,000 emails a day. Integration was a breeze with their great API and SDKs for your favorite language. Since then, we've scaled up to send over 7 million emails without any problems.

Nikola Milojević
, CTO
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MailerSend gives us peace of mind. We never worry about our emails. All the work happens in the background—always addressing our needs.

Raphaël Abadie
, CTO
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Integrate quickly with our API documentation

MailerSend fits right into your stack with libraries for your favorite programming language, while detailed API documentation helps you send emails in minutes.

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")) }
import mailersend mailer = mailersend.NewApiClient() subject = "Subject" text = "Greetings from the team, you got this message through MailerSend." html = "

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

" my_mail = "your@email.com" subscriber_list = [ 'your@client.com', 'your@client1.com', 'your@client2.com'] mailer.send(my_mail, subscriber_list, subject, html, text)
require "mailersend-ruby" # Intialize the email class ms_email = Mailersend::Email.new # Add parameters ms_email.add_recipients("email" => "ron@parksandrec.com", "name" => "Ron") ms_email.add_recipients("email" => "leslie@parksandrec.com", "name" => "Leslie") ms_email.add_from("email" => "april@parksandrec.com", "name" => "April") ms_email.add_subject("Time") ms_email.add_text("Time is money, money is power, power is pizza, and pizza is knowledge. Let's go.") ms_email.add_html("Time is money, money is power, power is pizza, and pizza is knowledge. Let's go.") # Send the email ms_email.send

Automate email sending

Integrate MailerSend in your workflow with Zapier or Integromat and start sending emails automatically triggered by activity from your apps.

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24/7 customer support

Get help whenever you need it! Contact us here or just drop us a message on the live chat. Our dedicated support team works around the clock because transactional emails never stop.

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satisfaction rate

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response rate

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