Q:

How to Empty Gmail Trash with C#

I tried to access my Gmail mailbox with InterImap Library.  It shows my messages there, but unable to delete messages.  I also found a method "EmptyFolder()" but doesn't work. 
All that worked for me is MoveMessageToFolder() but it's not that I need. 
Please help me empty my Trash with C# using the same or any other library.  I need the code sample that does that. 
Here's the code what I managed to write. 
var config = new InterIMAP.IMAPConfig("imap.gmail.com", "<my gmail username>", "<my gmail password", true, true, "");
var client = new InterIMAP.Synchronous. IMAPClient(config, new InterIMAP.IMAPLogger(config, new object[] { }), 1);
var trash = client. Folders["[Gmail]"].SubFolders["Trash"];
trash. EmptyFolder();
client. Logoff();

Thanks in Advance. 

A:

If you delete a message from your Inbox or one of your custom folders, it will still appear in [Gmail]/All Mail. 
Here’s why: in most cases, deleting a message simply removes that folder’s label from the message, including the label identifying the message as being in your Inbox. 
[Gmail]/All Mail shows all of your messages, whether or not they have labels attached to them. 
If you want to permanently delete a message from all folders:

Move it to the [Gmail]/Trash folder. 
Delete it from the [Gmail]/Trash folder. 

You can find more details here:
http://www.limilabs.com/blog/delete-email-permanently-in-gmail

