Azure email & SMS service:
All your communication, native to the Microsoft ecosystem

Launch and scale global email and SMS services directly within Azure.
MessageFlow is a cross-channel platform for both marketing and transactional messaging, available on the Azure Marketplace. Deploy in minutes using a single RESTful API, scale effortlessly as demand grows, and simplify procurement with consolidated billing through your subscription – including full support for your MACC commitment.

Book an expert call
View the offer on Microsoft Marketplace
79 000+

brands
180+

countries
11.7bln

messages a month
99.9%

deliverability

Battle-tested by over 63k demanding brands

Scale communication in Azure:
From SMS and email delivery
to cross-channel messaging

Start with a single channel and scale your communication in Azure – without changing providers. MessageFlow lets you launch email or SMS services directly from Azure and seamlessly expand to additional channels over time, including RCS, Push, and OTT messaging. All channels are managed through one unified platform. Choose a ready-made offer from Azure Marketplace or contact us to design a tailored solution aligned with your needs.

Azure email sending with MessageFlow email API

Deliver marketing and transactional emails in Azure with confidence. The MessageFlow Azure Email API ensures high deliverability at scale, backed by a strong sender reputation and built-in anti-phishing protections. Your emails land in inboxes – not spam folders – helping safeguard your brand and maximize engagement.

View the offer on Microsoft Marketplace

SMS delivery from Azure

Cover every SMS use case in Azure – from critical transactional messages to large-scale marketing campaigns. MessageFlow supports system notifications, OTP and 2FA codes, trigger-based messaging, and high-volume bulk SMS. Direct connections to local and global GSM operators ensure reliable delivery, high throughput, and performance at scale.

View the offer on Microsoft Marketplace

Mix & match: Email and SMS delivery from Azure

Combine email and SMS in a single solution and choose the most effective channel based on message urgency, audience, or business context. The Mix & Match model enables email and SMS delivery from Azure through one platform and a single RESTful API – simplifying integration today and enabling seamless expansion tomorrow.

View the offer on Microsoft Marketplace

Tailored omnichannel communication in Azure

Go beyond SMS and email with RCS, Push, and OTT channels – managed through one platform and one API. MessageFlow enables consistent, omnichannel communication designed around your architecture, volumes, and business goals. Speak with our experts to design a solution tailored to your requirements.

Book an expert call

SMS and email delivery in
Azure without technical or
administrative barriers

Launch reliable SMS and email communication in Azure in minutes, not weeks. MessageFlow services are available directly through Azure Marketplace, with purchasing, billing, and legal terms already covered under your existing Microsoft agreements and budget. This eliminates procurement delays and administrative overhead. With RESTful API integration, technical teams can go live quickly using our robust Azure Email API and focus on outcomes – not deployment complexity.

Bill your communication directly in Azure

Charge SMS and email delivery directly to your Azure subscription, including MACC budget usage – without separate contracts, invoices, or external billing processes.

Run global communication at scale

Reach customers in +180
countries and easily scale your communications on Azure.
We leverage direct connections with local GSM operators.

Ensure the highest deliverability

Direct connections to local and global GSM operators, combined with trusted email service provider partnerships, ensure up to 99% deliverability for SMS and Azure email sending.

Secure enterprise-grade communication

MessageFlow is fully compliant with GDPR and ISO/IEC 27001, 27018, and 22301 standards, and supports your organization’s NIS2 and DORA compliance.

Manage multiple channels through a single API

Use one platform and a single RESTful API to manage SMS and email delivery in Azure, with the flexibility to expand to RCS, Push, and OTT channels.

Monitor communication in real time

MessageFlow integrates seamlessly with Azure Monitor, Log Analytics, and Power BI – providing complete visibility and control for mission-critical and operational messaging.

Dedicated expert support

Clear documentation, production-ready REST APIs, and direct access to MessageFlow experts ensure your teams succeed from day one.

Scale communication as your business grows

A flexible pay-as-you-go model allows you to scale volumes, channels, and overall communication value as your business evolves.

Book an expert call

Developer-friendly SMS and email
API for Microsoft Azure

MessageFlow is a lightweight REST API for sending SMS and email directly from applications running on Microsoft Azure. It provides a scalable Azure Email API and a reliable Azure SMS Service, integrating seamlessly with Azure Functions, App Service, Logic Apps, and containerized workloads – supporting transactional messaging, system alerts, and OTP/2FA use cases without additional middleware or vendor lock-in.

Sample implementations of the Email API and SMS API for .NET (Azure Functions), Node.js, Java, PHP, and Python – including OTP, alerting, and system notification scenarios.

View the documentation

An API designed for Azure Functions, event-driven architectures, microservices, and highly available serverless solutions.

Webhooks, delivery status callbacks, and real-time error handling – ready to be integrated with application logging and monitoring.

A consistent REST contract, minimal latency, and scalability – from individual requests to high-volume enterprise systems.

                        
import requests

url = "https://api.messageflow.com/v2.1/email"

payload = {
    "subject": "Test email subject",
    "smtpAccount": "1.test.smtp",
    "tags": ["test-tag"],
    "content": {
        "html": "<h1>Hello world</h1>",
        "text": "Hello world",
        "templateId": "as2sCwq"
    },
    "bcc": [
        {
            "email": "string",
            "name": "string"
        }
    ],
    "cc": [
        {
            "email": "string",
            "name": "string"
        }
    ],
    "from": {
        "email": "string",
        "name": "string"
    },
    "replyTo": {
        "email": "string",
        "name": "string"
    },
    "headers": { "X-TEST-HEADER": "val" },
    "globalVars": {
        "sex": "unknown",
        "hasNewsletter": False,
        "promos": {
            "1": {
                "name": "test40",
                "value": 300
            },
            "2": {
                "name": "test800",
                "value": 3008
            }
        },
        "footer": "<div><strong>crazy footer</strong></div>"
    },
    "to": [
        {
            "email": "",
            "name": "Test sender",
            "messageId": "",
            "vars": {
                "hasNewsletter": True,
                "products": {
                    "1": {
                        "name": "skirt",
                        "id": 1,
                        "color": "green"
                    },
                    "2": {
                        "name": "hoodie",
                        "id": 6,
                        "color": "red",
                        "options": ["pocket", "print", "glitter"]
                    },
                    "3": {
                        "name": "dress",
                        "id": "100",
                        "color": "blue"
                    }
                }
            }
        }
    ],
    "attachments": [
        {
            "fileName": "report.txt",
            "fileMime": "text/plain",
            "fileContent": "c29tZSBmaWxlIGNvbnRlbnQ=",
            "inline": False
        }
    ]
}
headers = {
    "Content-Type": "application/json",
    "Accept": "application/json",
    "Authorization": "123",
    "Application-Key": "123"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())                    
                        
const data = JSON.stringify({
  subject: "Test email subject",
  smtpAccount: "1.test.smtp",
  tags: ["test-tag"],
  content: {
    html: "<h1>Hello world</h1>",
    text: "Hello world",
    templateId: "as2sCwq",
  },
  bcc: [{ email: "string", name: "string" }],
  cc: [{ email: "string", name: "string" }],
  from: { email: "string", name: "string" },
  replyTo: { email: "string", name: "string" },
  headers: { "X-TEST-HEADER": "val" },
  globalVars: {
    sex: "unknown",
    hasNewsletter: false,
    promos: {
      1: { name: "test40", value: 300 },
      2: { name: "test800", value: 3008 },
    },
    footer: "<div><strong>crazy footer</strong></div>",
  },
  to: [
    {
      email: "",
      name: "Test sender",
      messageId: "",
      vars: {
        hasNewsletter: true,
        products: {
          1: { name: "skirt", id: 1, color: "green" },
          2: {
            name: "hoodie",
            id: 6,
            color: "red",
            options: ["pocket", "print", "glitter"],
          },
          3: { name: "dress", id: "100", color: "blue" },
        },
      },
    },
  ],
  attachments: [
    {
      fileName: "report.txt",
      fileMime: "text/plain",
      fileContent: "c29tZSBmaWxlIGNvbnRlbnQ=",
      inline: false,
    },
  ],
});

const xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function () {
  if (this.readyState === this.DONE) {
    console.log(this.responseText);
  }
});

xhr.open("POST", "https://api.messageflow.com/v2.1/email");
xhr.setRequestHeader("Content-Type", "application/json");
xhr.setRequestHeader("Accept", "application/json");
xhr.setRequestHeader("Authorization", "123");
xhr.setRequestHeader("Application-Key", "123");

xhr.send(data);                    
                        
const request = require("request");

const options = {
  method: "POST",
  url: "https://api.messageflow.com/v2.1/email",
  headers: {
    "Content-Type": "application/json",
    Accept: "application/json",
    Authorization: "123",
    "Application-Key": "123",
  },
  body: {
    subject: "Test email subject",
    smtpAccount: "1.test.smtp",
    tags: ["test-tag"],
    content: {
      html: "<h1>Hello world</h1>",
      text: "Hello world",
      templateId: "as2sCwq",
    },
    bcc: [{ email: "string", name: "string" }],
    cc: [{ email: "string", name: "string" }],
    from: { email: "string", name: "string" },
    replyTo: { email: "string", name: "string" },
    headers: { "X-TEST-HEADER": "val" },
    globalVars: {
      sex: "unknown",
      hasNewsletter: false,
      promos: {
        1: { name: "test40", value: 300 },
        2: { name: "test800", value: 3008 },
      },
      footer: "<div><strong>crazy footer</strong></div>",
    },
    to: [
      {
        email: "",
        name: "Test sender",
        messageId: "",
        vars: {
          hasNewsletter: true,
          products: {
            1: { name: "skirt", id: 1, color: "green" },
            2: {
              name: "hoodie",
              id: 6,
              color: "red",
              options: ["pocket", "print", "glitter"],
            },
            3: { name: "dress", id: "100", color: "blue" },
          },
        },
      },
    ],
    attachments: [
      {
        fileName: "report.txt",
        fileMime: "text/plain",
        fileContent: "c29tZSBmaWxlIGNvbnRlbnQ=",
        inline: false,
      },
    ],
  },
  json: true,
};

request(options, function (error, response, body) {
  if (error) throw new Error(error);

  console.log(body);
});                    
                        
<?php

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => "https://api.messageflow.com/v2.1/email",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_POSTFIELDS => json_encode([
        'subject' => 'Test email subject',
        'smtpAccount' => '1.test.smtp',
        'tags' => [
            'test-tag'
        ],
        'content' => [
            'html' => '<h1>Hello world</h1>',
            'text' => 'Hello world',
            'templateId' => 'as2sCwq'
        ],
        'bcc' => [
            [
                'email' => 'string',
                'name' => 'string'
            ]
        ],
        'cc' => [
            [
                'email' => 'string',
                'name' => 'string'
            ]
        ],
        'from' => [
            'email' => 'string',
            'name' => 'string'
        ],
        'replyTo' => [
            'email' => 'string',
            'name' => 'string'
        ],
        'headers' => [
            'X-TEST-HEADER' => 'val'
        ],
        'globalVars' => [
            'sex' => 'unknown',
            'hasNewsletter' => null,
            'promos' => [
                '1' => [
                    'name' => 'test40',
                    'value' => 300
                ],
                '2' => [
                    'name' => 'test800',
                    'value' => 3008
                ]
            ],
            'footer' => '<div><strong>crazy footer</strong></div>'
        ],
        'to' => [
            [
                'email' => '',
                'name' => 'Test sender',
                'messageId' => '',
                'vars' => [
                    'hasNewsletter' => null,
                    'products' => [
                        '1' => [
                            'name' => 'skirt',
                            'id' => 1,
                            'color' => 'green'
                        ],
                        '2' => [
                            'name' => 'hoodie',
                            'id' => 6,
                            'color' => 'red',
                            'options' => [
                                'pocket',
                                'print',
                                'glitter'
                            ]
                        ],
                        '3' => [
                            'name' => 'dress',
                            'id' => '100',
                            'color' => 'blue'
                        ]
                    ]
                ]
            ]
        ],
        'attachments' => [
            [
                'fileName' => 'report.txt',
                'fileMime' => 'text/plain',
                'fileContent' => 'c29tZSBmaWxlIGNvbnRlbnQ=',
                'inline' => null
            ]
        ]
    ]),
    CURLOPT_HTTPHEADER => [
        "Accept: application/json",
        "Application-Key: 123",
        "Authorization: 123",
        "Content-Type: application/json"
    ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
    echo "cURL Error #: " . $err;
} else {
    echo $response;
}                    
                        
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

public class Main {

    public static void main(String[] args) throws Exception {

        OkHttpClient client = new OkHttpClient();

        MediaType mediaType = MediaType.parse("application/json");

        String json = "{\n" +
                "  \"subject\": \"Test email subject\",\n" +
                "  \"smtpAccount\": \"1.test.smtp\",\n" +
                "  \"tags\": [\n" +
                "    \"test-tag\"\n" +
                "  ],\n" +
                "  \"content\": {\n" +
                "    \"html\": \"<h1>Hello world</h1>\",\n" +
                "    \"text\": \"Hello world\",\n" +
                "    \"templateId\": \"as2sCwq\"\n" +
                "  },\n" +
                "  \"bcc\": [\n" +
                "    {\n" +
                "      \"email\": \"string\",\n" +
                "      \"name\": \"string\"\n" +
                "    }\n" +
                "  ],\n" +
                "  \"cc\": [\n" +
                "    {\n" +
                "      \"email\": \"string\",\n" +
                "      \"name\": \"string\"\n" +
                "    }\n" +
                "  ],\n" +
                "  \"from\": {\n" +
                "    \"email\": \"string\",\n" +
                "    \"name\": \"string\"\n" +
                "  },\n" +
                "  \"replyTo\": {\n" +
                "    \"email\": \"string\",\n" +
                "    \"name\": \"string\"\n" +
                "  },\n" +
                "  \"headers\": {\n" +
                "    \"X-TEST-HEADER\": \"val\"\n" +
                "  },\n" +
                "  \"globalVars\": {\n" +
                "    \"sex\": \"unknown\",\n" +
                "    \"hasNewsletter\": false,\n" +
                "    \"promos\": {\n" +
                "      \"1\": {\n" +
                "        \"name\": \"test40\",\n" +
                "        \"value\": 300\n" +
                "      },\n" +
                "      \"2\": {\n" +
                "        \"name\": \"test800\",\n" +
                "        \"value\": 3008\n" +
                "      }\n" +
                "    },\n" +
                "    \"footer\": \"<div><strong>crazy footer</strong></div>\"\n" +
                "  },\n" +
                "  \"to\": [\n" +
                "    {\n" +
                "      \"email\": \"\",\n" +
                "      \"name\": \"Test sender\",\n" +
                "      \"messageId\": \"\",\n" +
                "      \"vars\": {\n" +
                "        \"hasNewsletter\": true,\n" +
                "        \"products\": {\n" +
                "          \"1\": {\n" +
                "            \"name\": \"skirt\",\n" +
                "            \"id\": 1,\n" +
                "            \"color\": \"green\"\n" +
                "          },\n" +
                "          \"2\": {\n" +
                "            \"name\": \"hoodie\",\n" +
                "            \"id\": 6,\n" +
                "            \"color\": \"red\",\n" +
                "            \"options\": [\n" +
                "              \"pocket\",\n" +
                "              \"print\",\n" +
                "              \"glitter\"\n" +
                "            ]\n" +
                "          },\n" +
                "          \"3\": {\n" +
                "            \"name\": \"dress\",\n" +
                "            \"id\": \"100\",\n" +
                "            \"color\": \"blue\"\n" +
                "          }\n" +
                "        }\n" +
                "      }\n" +
                "    }\n" +
                "  ],\n" +
                "  \"attachments\": [\n" +
                "    {\n" +
                "      \"fileName\": \"report.txt\",\n" +
                "      \"fileMime\": \"text/plain\",\n" +
                "      \"fileContent\": \"c29tZSBmaWxlIGNvbnRlbnQ=\",\n" +
                "      \"inline\": false\n" +
                "    }\n" +
                "  ]\n" +
                "}";

        RequestBody body = RequestBody.create(mediaType, json);

        Request request = new Request.Builder()
                .url("https://api.messageflow.com/v2.1/email")
                .post(body)
                .addHeader("Content-Type", "application/json")
                .addHeader("Accept", "application/json")
                .addHeader("Authorization", "123")
                .addHeader("Application-Key", "123")
                .build();

        Response response = client.newCall(request).execute();

        System.out.println(response.body().string());
    }
}

Looking for an Azure-Based Email
or SMS Service Tailored
to Your Business?

Connect with our expert and schedule a consultation. We’ll design a custom solution aligned with your communication volumes, preferred channels, industry requirements, and technical and regulatory needs.

Book an expert call

See what others are saying

Our SMS provider has delivered uninterrupted, efficient service over 24 months, showing a flexible and customer-centered approach that aligns seamlessly with our operational needs.

Marketing Manager

We have been using this platform continuously since 2011 to handle SMS campaigns. The tool is characterized by high quality of operation, it is distinguished by the speed of sending shipments, high level of deliverability and access to the Polish GSM infrastructure.

Director of Loyalty Program

We use the platform to send SMS and Mobile Push notifications both domestically and internationally with Support always on standby.

Vice President of the Board

MessageFlow services are now an integral part of our clients’ technology ecosystem. They operate smoothly, efficiently, and reliably. Our long-standing partnership is built on trust in the quality of the infrastructure and the flexibility of the team, which always responds to new requirements in a truly collaborative way.

Persooa

The Email and SMS communication infrastructure delivers outstanding overall performance, perfectly meeting our extensive marketing campaign needs.

Marketing Coordinator

Best partner to drive your SMS campaigns. Clarity in pricing, good understanding of the market, very good support for numerous customers, direct (but unique and personalized) treatment.

Zofia M.

Partner Operations Manager

MessageFlow is a reliable technology partner we can always count on. Their professionalism, responsiveness, and positive energy make our collaboration smooth and effortless.

Marta Wawrzyniak

Senior Partnership Manager

The communication platform provides us with comprehensive SMS communication services at a very high level. Thanks to the individual approach to our needs, we were able to use ready-made solutions, as well as tailor-made solutions, which is a great help in the case of such a large organization as ours.

Director Of The Finance and Customer Service Department

FAQ: Email and SMS communication in Azure

Here are some of the most frequently asked questions answered by our experts.

MessageFlow is an Azure SMS service and email communication platform built for native use within Microsoft Azure. It integrates directly with Azure Functions, App Service, Logic Apps, and containerized environments, enabling transactional messaging, system alerts, and OTP/2FA scenarios without external middleware.

To send SMS from Azure, developers use MessageFlow’s lightweight REST interface, called directly from Azure-native services such as Functions or App Service. This Azure sms service is designed for simplicity and scalability, with ready-to-use code samples available for .NET, Node.js, Java, PHP, and Python.

Azure Email and SMS pricing with MessageFlow depends on message volume, destination countries, and the selected commercial model. The platform offers transparent, pay-as-you-go options via Azure Marketplace as well as tailored pricing for enterprise-scale use cases, all delivered through a production-ready Azure SMS and email service.

Yes. MessageFlow provides both a modern RESTful Email API and a high-performance cloud-based SMTP server. This allows you to choose the integration model best suited to your architecture – from cloud-native and serverless applications to existing SMTP-based systems such as CRM, CMS, e-commerce, or marketing automation platforms.

Yes. MessageFlow enables unified SMS and Azure email sending through a single API. Shared authentication, delivery reports, and webhooks allow you to manage both channels within one application architecture and evolve seamlessly toward a full omnichannel strategy.

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