Retrieve Emails via Microsoft Graph in C#

Microsoft Graph Email Receiving API in .NET

Aspose.Email for .NET provides a powerful receive email API that allows C# developers to easily integrate email receiving functionality into their applications using Microsoft Graph. This enables seamless access to email messages stored in Microsoft 365 mailboxes, making it ideal for building scalable email solutions or automating email workflows within enterprise applications. Aspose.Email for .NET simplifies the process of interacting with Microsoft Graph, providing robust tools for handling email data, managing folders, and processing attachments in a secure and efficient manner.

How to Retrieve Emails using Microsoft Graph in C#

Aspose.Email for .NET leverages Microsoft Graph to access mailbox data, making email retrieval a straightforward task for C# developers. By utilizing the IGraphClient interface, you can authenticate and interact with Microsoft 365 mailboxes, retrieving emails, managing message threads, and handling attachments, all through the email receive API.

Connect to Microsoft Graph

With Aspose.Email, establishing a connection to Microsoft Graph is simplified. Developers use the GraphClient.GetClient method to instantiate the IGraphClient interface for OAuth 2.0 authentication, ensuring secure access to mailbox data.

var graphClient = GraphClient.GetClient("clientId", "tenantId", "clientSecret");

Manage Email Folders

Aspose.Email for .NET allows you to programmatically access and manage mailbox folders via Microsoft Graph, making it easier to organize emails. Developers can retrieve folder information, move messages between folders, or create custom folder structures. The client.ListFolders() method is called to retrieve a list of folders associated with the mailbox, and then, the Inbox folder is retrieved.

var folder = client.ListFolders().FirstOrDefault(folder => folder.DisplayName.Equals("Inbox"));

Retrieve Emails

The C# receive email API allows you to fetch email messages directly from a Microsoft 365 mailbox using methods such as ListMessages and FetchMessage . You can filter emails based on criteria like date or unread status to streamline email processing.

 foreach (var msgInfo in client.ListMessages(folder.ItemId))
    {
        var msg = client.FetchMessage(msgInfo.ItemId);
    }

Processing Attachments

Aspose.Email for .NET offers full support for handling attachments, enabling developers to download and manage email attachments directly from Microsoft Graph using the Attachment class.

// create an attachment
var attachment = new MapiAttachment();
attachment.SetProperty(KnownPropertyList.DisplayName, "My Attachment");
attachment.SetProperty(KnownPropertyList.AttachDataBinary, new byte[1024]);

// add an attachment to message
var createdAttachment = client.CreateAttachment(messageInfo.ItemId, attachment);

// fetch a message attachment
var fetchedAttachment = client.FetchAttachment(createdAttachment.ItemId);

// delete a message attachment 
client.DeleteAttachment(createdAttachment.ItemId);

// list the message attachments
var attachments = client.ListAttachments(messageInfo.ItemId);   

Using Aspose.Email for .NET with Microsoft Graph

By utilizing Aspose.Email for .NET in combination with Microsoft Graph, you can automate email receiving processes in your C# applications, making your email receive API solution more robust and adaptable to various business needs.

• Seamless Integration: The C# email API integrates smoothly with Microsoft Graph, offering secure and efficient access to Microsoft 365 mailbox data.
• Advanced Email Management: Developers can retrieve, filter, and organize emails while managing folders and attachments using a simple and reliable C# API.
• Secure OAuth Authentication: Aspose.Email ensures secure access to mailbox data using OAuth 2.0, meeting modern security standards.
• Real-time Synchronization: Real-time email updates support, ensuring users receive timely notifications and updates, enhancing their engagement and productivity.
• Scalable and Efficient: Whether you need to process thousands of emails or manage attachments in bulk, Aspose.Email for .NET provides the performance and scalability required for enterprise-level applications.

About the C# Library

A comprehensive and versatile .NET library empowers developers to work with email messages and related functionalities in their applications. With a wide range of features and capabilities, it simplifies tasks such as creating, parsing, and manipulating emails, as well as interacting with various servers and protocols. It is a trusted choice for developers looking to build email clients, automation tools, and applications that require seamless integration with popular services and servers. It offers robust support for a variety of protocols and services, including SMTP, POP3, IMAP, EWS, and Microsoft Graph, making it an essential tool for developing email-related applications with ease and efficiency.

How to Obtain the API

To leverage the power of the API, you need just a minute to install the library into your project. You can do this by any of the most convenient ways:

• using NuGet Package Manager
• referencing the required assemblies
• or simply by using the following command within the Package Manager Console in Visual Studio:

PM> Install-Package Aspose.Email