Images aren't being displayed as embedded in email sent by my application

I'm trying to send an email with embedded images through a delphi application using Indy, but somehow it isn't working.

I compared the contents of the email I sent with one sent from gmail, and everything seens fine, but I might be missing some little detail.

Gmail shows the attached image of my email as a normal attachment, but it is set correctly as inline.

EDIT

Solved using the TIdMessageBuilderHtml it worked perfectly on the first try.

From stackoverflow

• Solved using the TIdMessageBuilderHtml it worked perfectly on the first try.

  Just a few lines of code:

    with TIdMessageBuilderHtml.Create do
      try
        Subject := 'example';
        Html.Text := 'HTML goes here';
        HtmlFiles.Add('c:\folder\image1.jpg');
        HtmlFiles.Add('c:\folder\image2.jpg');
        FillMessage(IdMessage1);
      finally
        Free;
      end;