Delphi ActiveX

Explicitly Begin a POP3 Session

Demonstrates the Chilkat MailMan.Pop3BeginSession method, which explicitly begins a POP3 session by connecting to the POP3 server and authenticating using the current POP3 property settings. Calling it is optional. This example begins a session, performs a mailbox operation, and ends the session.

Background: Pop3BeginSession combines connecting and authenticating into one call. Chilkat does this automatically when a mailbox operation needs it, so the value of calling it explicitly is control: you open one session, perform several operations against it, and close it with Pop3EndSession — avoiding repeated connect/authenticate round trips and keeping deletion marks within a single, well-defined session.

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var
success: Integer;
mailman: TChilkatMailMan;

begin
success := 0;

//  Demonstrates the MailMan.Pop3BeginSession method, which explicitly begins a POP3 session
//  by connecting to the POP3 server and authenticating using the current POP3 property
//  settings.

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';

//  Explicitly begin the POP3 session (connect + authenticate).

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

//  Perform one or more mailbox operations within this single session.
Memo1.Lines.Add('Mailbox count: ' + IntToStr(mailman.GetMailboxCount()));

//  End the session when finished.
success := mailman.Pop3EndSession();
if (success = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('POP3 session completed.');