Email Headers with IMAP

Besides retrieving full email messages, GemBox.Email allows you to fetch only the message headers using IMAP. The headers contain information related to the message content and metadata. For more details, check out our Headers example.

To obtain the message headers, you need to use one of the ImapClient.GetHeaders methods. The result is a HeaderCollection object, which contains a collection of Header related to the specified email message.

The following example shows how you can receive mail message headers using ImapClient, in your C# and VB.NET applications.

Message headers with IMAP client in C# and VB.NET — Screenshot of message headers from ImapClient

C#
VB.NET

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using System;
using GemBox.Email;
using GemBox.Email.Imap;
using GemBox.Email.Mime;

class Program
{
    static void Main()
    {
        // If using the Professional version, put your serial key below.
        ComponentInfo.SetLicense("FREE-LIMITED-KEY");

        using (ImapClient imap = new ImapClient("<ADDRESS> (e.g. imap.gmail.com)"))
        {
            imap.Connect();
            imap.Authenticate("<USERNAME>", "<PASSWORD>");

            // Get headers for first available mail message.
            HeaderCollection headers = imap.GetHeaders(1);

            // Display message headers.
            foreach (Header header in headers)
                Console.WriteLine($"{header.Name}: {header.Body}");
        }
    }
}

Imports System
Imports GemBox.Email
Imports GemBox.Email.Imap
Imports GemBox.Email.Mime

Module Program

    Sub Main()

        ' If using the Professional version, put your serial key below.
        ComponentInfo.SetLicense("FREE-LIMITED-KEY")

        Using imap As New ImapClient("<ADDRESS> (e.g. imap.gmail.com)")

            imap.Connect()
            imap.Authenticate("<USERNAME>", "<PASSWORD>")

            ' Get headers for first available mail message.
            Dim headers As HeaderCollection = imap.GetHeaders(1)

            ' Display message headers.
            For Each header As Header In headers
                Console.WriteLine($"{header.Name}: {header.Body}")
            Next
        End Using
    End Sub
End Module

For more information about ImapClient, check out our IMAP Client Connection example.

Next steps

GemBox.Email is a .NET component that enables you to read, write, receive, and send emails from your .NET applications using one simple API.

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Published: October 30, 2018 | Modified: December 19, 2022 | Author: Marko Kozlina

Email Headers with IMAP

See also

Next steps