Pop | 
public override Task<MimeMessage> GetMessageAsync( int index, CancellationToken cancellationToken = default, ITransferProgress progress = null )
| Exception | Condition | 
|---|---|
| ArgumentOutOfRangeException | index is not a valid message index. | 
| ObjectDisposedException | The Pop3Client has been disposed. | 
| ServiceNotConnectedException | The Pop3Client is not connected. | 
| ServiceNotAuthenticatedException | The Pop3Client is not authenticated. | 
| OperationCanceledException | The operation was canceled via the cancellation token. | 
| IOException | An I/O error occurred. | 
| Pop3CommandException | The POP3 command failed. | 
| Pop3ProtocolException | A POP3 protocol error occurred. | 
public static void DownloadMessages () { using (var client = new Pop3Client ()) { client.Connect ("pop.gmail.com", 995, SecureSocketOptions.SslOnConnect); client.Authenticate ("username", "password"); for (int i = 0; i < client.Count; i++) { var message = client.GetMessage (i); // write the message to a file message.WriteTo (string.Format ("{0}.msg", i)); // mark the message for deletion client.DeleteMessage (i); } client.Disconnect (true); } }