Delphi ActiveX

Send a Raw POP3 Command

Demonstrates the Chilkat MailMan.Pop3SendRawCommand method, which sends a raw command to the POP3 server and returns the server's response. The second argument specifies the charset to use if the command contains non-US-ASCII characters. This example sends the POP3 STAT command within an open session.

Background: POP3 is a simple line-based text protocol — the client sends short commands like STAT, LIST, UIDL, or RETR and the server replies with +OK or -ERR. This method is an escape hatch for issuing a command Chilkat doesn't wrap directly, or a server-specific extension. Note that the session must already be open, since a raw command assumes an authenticated connection.

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var
success: Integer;
mailman: TChilkatMailMan;
response: WideString;

begin
success := 0;

//  Demonstrates the MailMan.Pop3SendRawCommand method, which sends a raw command to the POP3
//  server and returns the server's response.  The second argument is the charset used if the
//  command contains non-US-ASCII characters.

mailman := TChilkatMailMan.Create(Self);

//  Configure the POP3 server connection.
mailman.MailHost := 'pop.example.com';
mailman.MailPort := 995;
mailman.PopSsl := 1;
mailman.PopUsername := 'user@example.com';
mailman.PopPassword := 'myPassword';

success := mailman.Pop3BeginSession();
if (success = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

//  Send the raw POP3 STAT command, which returns the message count and maildrop size.
response := mailman.Pop3SendRawCommand('STAT','us-ascii');
if (mailman.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add('STAT response: ' + response);

success := mailman.Pop3EndSession();
if (success = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;