Delphi ActiveX

Render an Email to MIME in a StringBuilder

Demonstrates the Chilkat MailMan.RenderToMimeSb method, which renders an Email object as MIME text and appends the result to a StringBuilder, without sending the email. This example renders a message into a StringBuilder and prints it.

Background: This is the StringBuilder version of RenderToMime. Appending into a StringBuilder is more efficient when the MIME is large or when you plan to further inspect or manipulate it — searching, replacing, or accumulating additional text — without creating extra intermediate string copies.

Chilkat Delphi ActiveX Downloads

Download Chilkat for Delphi ActiveX

Delphi ActiveX

var
success: Integer;
mailman: TChilkatMailMan;
email: TChilkatEmail;
sbMime: TChilkatStringBuilder;

begin
success := 0;

//  Demonstrates the MailMan.RenderToMimeSb method, which renders an Email object as MIME text
//  and appends the result to a StringBuilder (without sending the email).

mailman := TChilkatMailMan.Create(Self);

//  Build the email to render.
email := TChilkatEmail.Create(Self);
email.Subject := 'Rendered email';
email.From := 'alice@example.com';
email.AddTo('Bob','bob@example.com');
email.Body := 'This message is rendered to MIME in a StringBuilder.';

//  Render the MIME into a StringBuilder.
sbMime := TChilkatStringBuilder.Create(Self);

success := mailman.RenderToMimeSb(email.ControlInterface,sbMime.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(mailman.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add(sbMime.GetAsString());