(Delphi ActiveX) SOCKS4, SOCKS5 Proxy for POP3

Demonstrates how to communicate with a POP3 server through a SOCKS4 or SOCKS5 proxy.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
mailman: TChilkatMailMan;
bundle: TChilkatEmailBundle;
keepOnServer: Integer;
headersOnly: Integer;
numBodyLines: Integer;
email: TChilkatEmail;
i: Integer;

begin
success := 0;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// The mailman object is used for receiving (POP3) 
// and sending (SMTP) email.
mailman := TChilkatMailMan.Create(Self);

// To use a SOCKS4 or SOCKS5 proxy, simply set the following
// properties prior to making any calls that communicate with
// a POP3 server:
// The SOCKS hostname may be a domain name or 
// IP address:
mailman.SocksHostname := 'www.mysocksproxyserver.com';
mailman.SocksPort := 1080;
mailman.SocksUsername := 'myProxyLogin';
mailman.SocksPassword := 'myProxyPassword';
// Set the SOCKS version to 4 or 5 based on the version
// of the SOCKS proxy server:
mailman.SocksVersion := 5;
// Note: SOCKS4 servers only support usernames without passwords.
// SOCKS5 servers support full login/password authentication.

// Set the POP3 server's hostname
mailman.MailHost := 'pop.someMailServer.com';

// Set the POP3 login/password.
mailman.PopUsername := 'myLogin';
mailman.PopPassword := 'myPassword';

// Copy the all email from the user's POP3 mailbox 
// into a bundle object.  The email remains on the server.
bundle := TChilkatEmailBundle.Create(Self);
keepOnServer := 1;
headersOnly := 0;
// Irrelevent because we are NOT downloading headers-only
numBodyLines := 0;
success := mailman.FetchAll(keepOnServer,headersOnly,numBodyLines,bundle.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

email := TChilkatEmail.Create(Self);
i := 0;
while i < bundle.MessageCount do
  begin
    bundle.EmailAt(i,email.ControlInterface);

    Memo1.Lines.Add('From: ' + email.From);
    Memo1.Lines.Add('Subject: ' + email.Subject);
    i := i + 1;
  end;

mailman.Pop3EndSession();
end;