The secure API for integrating with Outlook Email API

The Nylas Email API makes it easy to integrate with Outlook and 100% of email service providers.

Easily integrate with Outlook email

Master Outlook’s authentication and verification process

Mitigate the complexity of building your email integration

For developers

Bypass Outlook API email integration challenges with Nylas

With a few lines of code, build email CRUD capabilities and bi-directional sync.

See the docs

Node.js

Ruby

Python

Java

Curl

const messages = await nylas.messages.list({
  identifier,
  queryParams: {
    limit: 5,
  }
})

require 'nylas'

nylas = Nylas::Client.new(api_key: 'API_KEY')
query_params = { limit: 5 }
messages, _ = nylas.messages.list(identifier: '<GRANT_ID>', query_params: query_params)

messages.each {|message|
    puts "[#{Time.at(message[:date]).strftime("%d/%m/%Y at %H:%M:%S")}] \
           #{message[:subject]}"
}

messages = nylas.messages.list(
  grant_id,
  query_params={
    "limit": 5
  }
)

import com.nylas.NylasClient;
import com.nylas.models.*;
import java.text.SimpleDateFormat;

public class ReadInbox {
    public static void main(String[] args) throws NylasSdkTimeoutError, NylasApiError {
        NylasClient nylas = new NylasClient.Builder("<API_KEY>").build();
        ListMessagesQueryParams queryParams = new 
        ListMessagesQueryParams.Builder().limit(5).build();
        ListResponse<Message> message = nylas.messages().list("<GRANT_ID>", queryParams);

        for(Message email : message.getData()) {
            String date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").
                format(new java.util.Date((email.getDate() * 1000L)));

            System.out.println("[" + date + "] | " + email.getSubject());
        }
    }
}

curl --request GET \
  --url "https://api.us.nylas.com/v3/grants/GRANT_ID/messages?limit=5" \
  --header 'Accept: application/json' \
  --header 'Authorization: Bearer <API_KEY_OR_ACCESS_TOKEN>' \
  --header 'Content-Type: application/json'

Node.js

Ruby

Python

Java

Curl

const contact = new Contact(nylas);
// The following attributes can be modified for the contact object
contact.givenName = 'Nyla'
contact.birthday = '2014-06-01'
contact.companyName = 'Nylas'
contact.jobTitle = 'Communications Platform'
contact.officeLocation = 'San Francisco'
contact.notes = 'Check out the Nylas Email, Calendar, and Contacts APIs'
contact.emailAddresses = [new EmailAddress({
  type: 'work', email: '[email protected]'
})];
contact.save();

contact = nylas.contacts.create
contact.given_name = 'Nyla'
contact.office_location = 'San Francisco'
contact.company_name = 'Nylas'
contact.notes =
  'Check out the Nylas Email, Calendar, and Contacts APIs'
contact.manager_name = 'Communications'
contact.job_title = 'Communications Platform'
contact.birthday = '2014-06-01'
contact.emails = [
{
  type: 'work',
  email: '[email protected]'
}]
contact.save

contact = nylas.contacts.create()
contact.given_name = 'Nyla'
contact.office_location = 'San Francisco'
contact.company_name = 'Nylas'
contact.notes = 'Check out the Nylas Email, Calendar, and Contacts APIs'
contact.manager_name = 'Communications'
contact.job_title = 'Communications Platform'
contact.birthday = datetime(2014, 6, 1)
contact.emails['work'] = ['[email protected]']
contact.save()

public class NylasExamples {
    public static void createContact() throws IOException, RequestFailedException {
        Contact contact = new Contact();
        
        contact.setGivenName("Nyla");
        contact.setNickname("Nylas");
        contact.setOfficeLocation("San Francisco");
        contact.setCompanyName("Nylas");
        contact.setNotes("Check out the Nylas Email, Calendar, and Contacts APIs");
        contact.setManagerName("Communications");
        contact.setJobTitle("Communications Platform");
        contact.setBirthday("2014-06-01");
        
        contact.setEmails(Arrays.asList(new Contact.Email("work", "[email protected]")));
        contact = account.contacts().create(contact);
    }
}

curl --request POST \
  --url https://api.nylas.com/contacts \
  --data '{
  "birthday": "2014-06-01",
  "company_name": "Nylas",
  "emails": [
    {
      "email": "[email protected]",
      "type": "work"
    }
  ],
  "given_name": "Nyla",
  ],
  "job_title": "Nylas Mascot",
  "phone_numbers": [
    {
      "number": "1 800 GO NYLAS",
      "type": "business"
    }
  ],
  "web_pages": [
    {
      "type": "work",
      "url": "nylas.com"
    }
  ],
}'

View on Github

Response

{
    "request_id": "d0c951b9-61db-4daa-ab19-cd44afeeabac",
    "data": [
        {
            "starred": false,
            "unread": true,
            "folders": [
                "UNREAD",
                "CATEGORY_PERSONAL",
                "INBOX"
            ],
            "grant_id": "1",
            "date": 1706811644,
            "attachments": [
                {
                    "id": "1",
                    "grant_id": "1",
                    "filename": "invite.ics",
                    "size": 2504,
                    "content_type": "text/calendar; charset=\"UTF-8\"; method=REQUEST"
                },
                {
                    "id": "2",
                    "grant_id": "1",
                    "filename": "invite.ics",
                    "size": 2504,
                    "content_type": "application/ics; name=\"invite.ics\"",
                    "is_inline": false,
                    "content_disposition": "attachment; filename=\"invite.ics\""
                }
            ],
            "from": [
                {
                    "name": "Nylas DevRel",
                    "email": "[email protected]"
                }
            ],
            "id": "1",
            "object": "message",
            "snippet": "Send Email with Nylas APIs",
            "subject": "Learn how to Send Email with Nylas APIs",
            "thread_id": "1",
            "to": [
                {
                    "name": "Nyla",
                    "email": "[email protected]"
                }
            ],
            "created_at": 1706811644,
            "body": "Learn how to send emails using the Nylas APIs!"
        }
    ],
    "next_cursor": "123"
}

{
    "type": "event.created3",
    "data": {
      "object": {
        "busy": true,
        "calendar_id": "mock-name%40nylas.com",
        "created_at": 1234567890,
        "description": "mock description",
        "hide_participants": false,
        "ical_uid": "[email protected]",
        "id": "mock-data-id",
        "object": "event",
        "owner": "Mock Owner <[email protected]>",
        "organizer": {
          "name": "mock organizer name",
          "email": "[email protected]"
        },
        "participants": [
          {
            "email": "[email protected]",
            "name": "mockParticipantsA",
            "status": "yes"
          },
          {
            "email": "[email protected]",
            "name": "mockParticipantsB",
            "status": "noreply"
          }
        ],
        "read_only": false,
        "reminders": null,
        "status": "confirmed",
        "title": "mock_title",
        "updated_at": 1234567890,
        "when": {
          "start_time": 1234567890,
          "start_timezone": "America/Edmonton",
          "end_time": 1234567890,
          "end_timezone": "America/Edmonton",
          "object": "timespan"
        }
      }
    }
  }

Webhooks

Receive real-time notifications to monitor events and trigger automated workflows.

Sandbox environment

Experiment with our API with pre-configured settings in the Nylas Dashboard.

SDKs

Fast-track your integration with our Node.js, Ruby, Python, Java and Kotlin SDKs.

Integrate with the Outlook Email REST API faster with Nylas

Building a full-featured Outlook integration yourself would take around 5,072 hours. With Nylas you can start sending emails programmatically in just minutes.

Full search functionality

Nylas provides search functionality that allows you to run full-text search proxied to the users’ Outlook accounts. Results are matched with objects that have been synced and then returned.

Webhook notifications

Webhooks allow your application to receive notifications when certain events occur — they are easy to integrate with your app and scale seamlessly with your growth.

99.9% guaranteed uptime

Uptime is of utmost importance. That’s why the Nylas communication platform is built with a 99.9% guaranteed uptime.

Divert the costs of the Outlook Mail API

As your platform scales and your user base grows, so do costs for maintaining an Outlook integration. Nylas handles these for you, including costs for:

Operating servers
Removing Microsoft’s old protocols and implementing new ones
Keeping up with the hundreds of pages of documentation for Exchange ActiveSync (EAS), Exchange Web Services (EWS), and Graph
Troubleshooting bugs
The Nylas APIs abstracts away the ongoing maintenance tasks for you. Our API comes with out-of-the-box security certifications, and we power even more granular scopes than most providers to improve security for your end-users.

Calculate your savings with the Nylas APIs

With Nylas, everything is secure. Everything is connected.

Security is our top priority — we sweat the small stuff so you don’t have to. Nylas is SOC 2 Certified, Privacy Shield certified, GDPR compliant, and HIPAA ready. Data from every email you sync is encrypted and isolated with multi-level permission checks.

World-class security certifications
Token management
Whitelisted IPs
Data encryption
Granular authentication scopes
Gated permission checks

Download the Security Whitepaper

Frequently Asked Questions

What is the Outlook Email API?

The Outlook Email API is a web service provided by Microsoft that allows developers to access and interact with a user’s email, calendar, and contacts data from Outlook.com, Office 365, and Exchange Online.

How do I get started integrating with the Outlook Email API?

Register your application with Microsoft to integrate the Outlook Email API and obtain the necessary credentials. You can then use the API to perform various email-related operations, such as sending and receiving emails, managing calendars, and accessing contacts.

Nylas simplifies the integration process by offering a unified API for accessing and managing email, calendar, and contacts data from various providers, including Outlook. Nylas handles the complex aspects of the integration, such as authentication and data normalization, allowing you to focus on building your application’s core features.

Which apps or tools can be integrated with Outlook Mail?

Outlook Mail can be integrated with various apps and tools, including CRM systems, project management tools, and scheduling tools. The Nylas Email API can help developers integrate Outlook email and other email providers into their apps and tools. Using Nylas, developers can easily access and interact with email data from various email providers, including Outlook, and build powerful integrations for their users.

How do I troubleshoot common issues with an Outlook email integration?

Suppose you are facing issues with Outlook email integration. In that case, common troubleshooting steps include checking your API credentials and permissions, verifying that your API calls are correctly formatted, and testing your integration with different email accounts. Nylas can help streamline the integration process and provide support for troubleshooting and resolving any issues you may encounter. We offer developer documentation, code samples, and support channels to integrate the Outlook Email API.

What technologies does Nylas support for an Outlook Email API Integration?

Nylas supports various technologies for integrating with the Outlook Email API, including Java, Ruby, Python, Node.js, and .NET. The Nylas SDKs provide simple and reliable access to the Outlook Email API, allowing developers to build robust email integrations with ease. Additionally, Nylas offers detailed documentation and responsive support to help developers troubleshoot any issues they may encounter.

Ready to start building?

Unlock your key API and sync up to 5 accounts

Build for free

Introducing Nylas ExtractAI: Sync, filter, and extract structured data from your user’s inbox

Nylas API v3 is now generally available! Learn about the features and functionalities the new infrastructure introduces.

Get inspired by the dev community and explore stellar projects built with Nylas APIs.

Upgrade to v3: Nylas v3 offers major platform improvements and new APIs.