The simplest way to delete a folder is using the DeleteFolder method. You only need to pass the folder name to the method.

The following steps will help you to do that:

Deleting a Folder

1. Add using directives to your code to create aliases for existing namespaces and avoid having to type the fully qualified type names. The code looks similar to the following:
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   C#

   VB.NET

   using ComponentPro.Net;
   using ComponentPro.Net.Mail;
   

   Imports ComponentPro.Net
   Imports ComponentPro.Net.Mail
   

2. Create a new instance of the Imap class.
3. Now you can connect to the IMAP server with Connect methods. The code looks similar to the following:
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   C#

   VB.NET

   // IMAP server information. 
   const string serverName = "myserver";
   const string user = "name@domain.com";
   const string password = "mytestpassword";
   const int port = 993;
   const SslSecurityMode securityMode = SslSecurityMode.Implicit;
   
   // Create a new instance of the Imap class.
   Imap client = new Imap();
   
   // Connect to the server.
   client.Connect(serverName, port, securityMode);
   

   ' IMAP server information. 
   Const serverName As String = "myserver" 
   Const user As String = "name@domain.com" 
   Const password As String = "mytestpassword" 
   Const port As Integer = 993
   Const securityMode As SslSecurityMode = SslSecurityMode.Implicit
   
   ' Create a new instance of the Imap class. 
   Dim client As New Imap()
   
   ' Connect to the server.
   client.Connect(serverName, port, securityMode)
   

4. Use your user name and password to login with Authenticate methods.  The code looks similar to the following:
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   C#

   VB.NET

   // Login to the server.
   client.Authenticate(user, password);
   

   ' Delete a 'My Mybox' folder in the root folder.
   client.DeleteFolder("My Mailbox")
   

5. Now pass the mailbox name to the DeleteFolder method. The code looks similar to the following:
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   C#

   VB.NET

   // Delete a 'My Mybox' folder in the root folder.
   client.DeleteFolder("My Mailbox");
   

   ' Delete a 'My Mybox' folder in the root folder.
   client.DeleteFolder("My Mailbox")
   

6. After completing your work, call the Disconnect method to close the IMAP session. 

Final example code

using ComponentPro.Net;
using ComponentPro.Net.Mail;

...

// IMAP server information. 
const string serverName = "myserver";
const string user = "name@domain.com";
const string password = "mytestpassword";
const int port = 993;
const SslSecurityMode securityMode = SslSecurityMode.Implicit;

// Create a new instance of the Imap class.
Imap client = new Imap();

// Connect to the server.
client.Connect(serverName, port, securityMode);

// Login to the server.
client.Authenticate(user, password);

// Delete a 'My Mybox' folder in the root folder.
client.DeleteFolder("My Mailbox");

// Close the connection.
client.Disconnect();

Imports ComponentPro.Net
Imports ComponentPro.Net.Mail

...

' IMAP server information. 
Const serverName As String = "myserver" 
Const user As String = "name@domain.com" 
Const password As String = "mytestpassword" 
Const port As Integer = 993
Const securityMode As SslSecurityMode = SslSecurityMode.Implicit

' Create a new instance of the Imap class. 
Dim client As New Imap()

' Connect to the server.
client.Connect(serverName, port, securityMode)

' Login to the server.
client.Authenticate(user, password)

' Delete a 'My Mybox' folder in the root folder.
client.DeleteFolder("My Mailbox")

' Close the connection.
client.Disconnect()