import nodemailer from "nodemailer";

const transporter = nodemailer.createTransport({
  host: "smtp.samva.app",
  port: 587,
  secure: false, // STARTTLS
  auth: {
    user: "samva",
    pass: process.env.SAMVA_API_KEY,
  },
});

await transporter.sendMail({
  from: "you@yourdomain.com",
  to: "recipient@example.com",
  subject: "Hello from Samva",
  html: "<h1>Hello!</h1><p>Sent via SMTP relay.</p>",
});

import os
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

msg = MIMEMultipart("alternative")
msg["Subject"] = "Hello from Samva"
msg["From"] = "you@yourdomain.com"
msg["To"] = "recipient@example.com"

html = "<h1>Hello!</h1><p>Sent via SMTP relay.</p>"
msg.attach(MIMEText(html, "html"))

with smtplib.SMTP("smtp.samva.app", 587) as server:
    server.starttls()
    server.login("samva", os.environ["SAMVA_API_KEY"])
    server.send_message(msg)

use PHPMailer\PHPMailer\PHPMailer;

$mail = new PHPMailer(true);
$mail->isSMTP();
$mail->Host       = 'smtp.samva.app';
$mail->SMTPAuth   = true;
$mail->Username   = 'samva';
$mail->Password   = getenv('SAMVA_API_KEY');
$mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
$mail->Port       = 587;

$mail->setFrom('you@yourdomain.com');
$mail->addAddress('recipient@example.com');
$mail->Subject = 'Hello from Samva';
$mail->isHTML(true);
$mail->Body = '<h1>Hello!</h1><p>Sent via SMTP relay.</p>';

$mail->send();

require 'net/smtp'

message = <<~MSG
  From: you@yourdomain.com
  To: recipient@example.com
  Subject: Hello from Samva
  MIME-Version: 1.0
  Content-Type: text/html; charset=UTF-8

  <h1>Hello!</h1><p>Sent via SMTP relay.</p>
MSG

smtp = Net::SMTP.new('smtp.samva.app', 587)
smtp.enable_starttls
smtp.start('smtp.samva.app', 'samva', ENV['SAMVA_API_KEY'], :plain) do |s|
  s.send_message(message, 'you@yourdomain.com', 'recipient@example.com')
end

package main

import (
  "net/smtp"
  "os"
  "strings"
)

func main() {
  auth := smtp.PlainAuth("", "samva", os.Getenv("SAMVA_API_KEY"), "smtp.samva.app")

  to := []string{"recipient@example.com"}
  msg := strings.Join([]string{
    "From: you@yourdomain.com",
    "To: recipient@example.com",
    "Subject: Hello from Samva",
    "MIME-Version: 1.0",
    "Content-Type: text/html; charset=UTF-8",
    "",
    "<h1>Hello!</h1><p>Sent via SMTP relay.</p>",
  }, "\r\n")

  smtp.SendMail("smtp.samva.app:587", auth, "you@yourdomain.com", to, []byte(msg))
}