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. Quickly build powerful, bi-directional email that drives engagement.

Background Image

import Nylas from 'nylas';
   clientId: CLIENT_ID,
   clientSecret: CLIENT_SECRET,
const nylas = Nylas.with(ACCESS_TOKEN);
nylas.account.get().then(account => {
    `Email: ${account.emailAddress} | `,
    `Provider: ${account.provider}  `

public class Calendar { 
  public static void main (String[] args) throws Exception {
    NylasAccount account = new NylasClient().account(ACCESS_TOKEN);
    List events =
      new EventQuery().title("Birthday Party!")); Event event ) -> {
      System.out.println( event.getLocation() ); 

from nylas import APIClient
client = APIClient(
# .first() returns the most recent email
message = nylas.messages.first()
print("Subject: {} | from: {}".format(
    message.subject, message.from_

require 'nylas'
nylas =
   client_id: CLIENT_ID,
   client_secret: CLIENT_SECRET,
   access_token: ACCESS_TOKEN
an_email = nylas.messages.first
puts an_email

Simplify Outlook Email API Integration with Nylas: The Easy Solution

The Nylas Email API gives you a secure, reliable connection to your users’ email accounts at Outlook and any other email service provider. With Nylas, you can ensure that the latest conversation history is available in real-time — both in your application and your users’ email client.

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.

Application integration

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.

Scheduled sends

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.

Free up engineering resources

99.9% guaranteed uptime

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

Build for free

Unlock your potential with Nylas and start building for free today. Experience the power of our robust APIs to streamline your development process and maintenance with integrations across providers.

For more information about how this data is used, please view our Privacy Policy
Let our experts help you build Outlook Email API integrations in a fraction of the time.

Contact us today for more information, including live demos, implementation options, and pricing details.

Our experts will help you understand:

  • How to integrate with Outlook Mail
  • What you need to know about the Outlook OAuth authentication and verification process
  • How Nylas helps mitigate the complexity of building your email integration

Embed scheduling instantly from any calendar
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, 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