using System;
using System.Collections.Specialized;
using System.Net;
using System.Text;

namespace ElasticEmailClient
{
    class Program
    {
        static void Main(string[] args)
        {
            NameValueCollection values = new NameValueCollection();
            values.Add("apikey", "00000000-0000-0000-0000-000000000000");
            values.Add("from", "youremail@yourdomain.com");
            values.Add("fromName", "Your Company Name");
            values.Add("to", "recipient1@gmail.com;recipient2@gmail.com");
            values.Add("subject", "Your Subject");
            values.Add("bodyText", "Text Body");
            values.Add("bodyHtml", "<h1>Html Body</h1>");
			values.Add("isTransactional", true);

            string address = "https://api.elasticemail.com/v2/email/send";

            string response = Send(address, values);

            Console.WriteLine(response);
        }

        static string Send(string address, NameValueCollection values)
        {
            using (WebClient client = new WebClient())
            {
                try
                {
                    byte[] apiResponse = client.UploadValues(address, values);
                    return Encoding.UTF8.GetString(apiResponse);

                }
                catch (Exception ex)
                {
                    return "Exception caught: " + ex.Message + "\n" + ex.StackTrace;
                }
            }
        }

    }
}

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;

public class ElasticEmailClient {
 
 public static String Send(String userName, String apiKey, String from, String fromName, String subject, String body, String to, String isTransactional) {
 
 try {
 
 String encoding = "UTF-8";
 
 String data = "apikey=" + URLEncoder.encode(apiKey, encoding);
 data += "&from=" + URLEncoder.encode(from, encoding);
 data += "&fromName=" + URLEncoder.encode(fromName, encoding);
 data += "&subject=" + URLEncoder.encode(subject, encoding);
 data += "&bodyHtml=" + URLEncoder.encode(body, encoding);
 data += "&to=" + URLEncoder.encode(to, encoding);
 data += "&isTransactional=" + URLEncoder.encode(isTransactional, encoding);
 
 URL url = new URL("https://api.elasticemail.com/v2/email/send");
 URLConnection conn = url.openConnection();
 conn.setDoOutput(true);
 OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
 wr.write(data);
 wr.flush();
 BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream())); 
 String result = rd.readLine();
 wr.close();
 rd.close();

 return result;
 }
 
 catch(Exception e) {
 
 e.printStackTrace();
 }
 }

}

<?php
$url = 'https://api.elasticemail.com/v2/email/send';

try{
        $post = array('from' => 'youremail@yourdomain.com',
		'fromName' => 'Your Company Name',
		'apikey' => '00000000-0000-0000-0000-000000000000',
		'subject' => 'Your Subject',
		'to' => 'recipient1@gmail.com;recipient2@gmail.com',
		'bodyHtml' => '<h1>Html Body</h1>',
		'bodyText' => 'Text Body',
		'isTransactional' => false);
		
		$ch = curl_init();
		curl_setopt_array($ch, array(
            CURLOPT_URL => $url,
			CURLOPT_POST => true,
			CURLOPT_POSTFIELDS => $post,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_HEADER => false,
			CURLOPT_SSL_VERIFYPEER => false
        ));
		
        $result=curl_exec ($ch);
        curl_close ($ch);
		
        echo $result;	
}
catch(Exception $ex){
	echo $ex->getMessage();
}
?>

import requests
import json
from enum import Enum
class ApiClient:
	apiUri = 'https://api.elasticemail.com/v2'
	apiKey = '00000000-0000-0000-0000-0000000000000'

	def Request(method, url, data):
		data['apikey'] = ApiClient.apiKey
		if method == 'POST':
			result = requests.post(ApiClient.apiUri + url, data = data)
		elif method == 'PUT':
			result = requests.put(ApiClient.apiUri + url, data = data)
		elif method == 'GET':
			attach = ''
			for key in data:
				attach = attach + key + '=' + data[key] + '&' 
			url = url + '?' + attach[:-1]
			result = requests.get(ApiClient.apiUri + url)	
			
		jsonMy = result.json()
		
		if jsonMy['success'] is False:
			return jsonMy['error']
			
		return jsonMy['data']

def Send(subject, EEfrom, fromName, to, bodyHtml, bodyText, isTransactional):
	return ApiClient.Request('POST', '/email/send', {
		'subject': subject,
		'from': EEfrom,
		'fromName': fromName,
		'to': to,
		'bodyHtml': bodyHtml,
		'bodyText': bodyText,
		'isTransactional': isTransactional})
				
print(Send("Your Subject", "youremail@yourdomain.com", "Your Company Name", "recipient1@gmail.com;recipient2@gmail.com", "<h1>Html Body</h1>", "Text Body", True))