Creating a mail with attachment in Outlook and displaying it

问题

I want to create a mail with attachment in Outlook and display it before sending it, but I think I have tried almost every sample I have found on the net without any luck. I could use Indy, but I would very much like to use Outlook to be sure that the mail is proper because it is for business use.

Any input for a function that takes Address, subject, message and attachment as parameters and then displays the message in Outlook before sending it.

回答1:

See MailItem.Display Method.

uses
  comobj;

..

procedure DisplayMail(Address, Subject, Body: string; Attachment: TFileName);
var
  Outlook: OleVariant;
  Mail: Variant;
const
  olMailItem = $00000000;
begin
  try
    Outlook := GetActiveOleObject('Outlook.Application');
  except
    Outlook := CreateOleObject('Outlook.Application');
  end;
  Mail := Outlook.CreateItem(olMailItem);
  Mail.To := Address;
  Mail.Subject := Subject;
  Mail.Body := Body;
  if Attachment <> '' then
    Mail.Attachments.Add(Attachment);
  Mail.Display;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  DisplayMail('mailaddress', 'subject', 'message', 'attachmentfile');
end;

来源：https://stackoverflow.com/questions/8463866/creating-a-mail-with-attachment-in-outlook-and-displaying-it