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(Delphi DLL) Yahoo Mail Send using OAuth2 Access Token

See more Yahoo Mail Examples

Demonstrates how to send email using Yahoo and OAuth2 authentication. This example assumes an OAuth2 access token was previously obtained.

Chilkat for Delphi Downloads

Chilkat non-ActiveX DLL for Delphi

Chilkat ActiveX DLL for Delphi

* The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, MailMan, Email, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
json: HCkJsonObject;
success: Boolean;
accessToken: PWideChar;
mailman: HCkMailMan;
email: HCkEmail;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// See Get Yahoo Mail OAuth2 Access Token for Desktop App 
// for sample code showing how to obtain a Yahoo Mail access token.

// In this example, our access token was previously saved to the following file which contains JSON like this:
// {
//   "access_token": "kCVQdnOdul...LHucA--",
//   "refresh_token": "AIenVXETSo0jklFBVkPS8vVm8E.Ej9ToRG.xDbDYmZ65WIs5t6CZhDrD",
//   "expires_in": 3600,
//   "token_type": "bearer",
//   "xoauth_yahoo_guid": "HGDQCVF5JB4YDOWHITQJFBHCWA"
// }

json := CkJsonObject_Create();
success := CkJsonObject_LoadFile(json,'qa_data/tokens/yahooMail.json');
if (success <> True) then
  begin
    Memo1.Lines.Add('Failed to load Yahoo access token file.');
    Exit;
  end;
accessToken := CkJsonObject__stringOf(json,'access_token');

mailman := CkMailMan_Create();

// Set the properties for the Yahoo SMTP server:
CkMailMan_putSmtpHost(mailman,'smtp.mail.yahoo.com');
CkMailMan_putSmtpPort(mailman,465);
CkMailMan_putSmtpSsl(mailman,True);

// The SMTP username should be the Yahoo email address of the user's account that authorized your app to send email.
CkMailMan_putSmtpUsername(mailman,'user@yahoo.com');
CkMailMan_putOAuth2AccessToken(mailman,accessToken);

// Create a new email object
email := CkEmail_Create();

CkEmail_putSubject(email,'This is a test');
CkEmail_putBody(email,'This is a test');
CkEmail_putFrom(email,'Joe User <user@yahoo.com>');
CkEmail_AddTo(email,'Chilkat Admin','admin@chilkatsoft.com');
// To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

// Call SendEmail to connect to the SMTP server and send.
// The connection (i.e. session) to the SMTP server remains
// open so that subsequent SendEmail calls may use the
// same connection.  
success := CkMailMan_SendEmail(mailman,email);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkMailMan__lastErrorText(mailman));
    Exit;
  end;

// You may close the connection here.  If the connection is kept open, 
// the next call to mailman.SendEmail will continue using the already-established connection
// (and automatically re-connect if needed).
success := CkMailMan_CloseSmtpConnection(mailman);
if (success <> True) then
  begin
    Memo1.Lines.Add('Connection to SMTP server not closed cleanly.');
  end;

Memo1.Lines.Add('Email Sent via Yahoo with OAuth2 authentication.');

CkJsonObject_Dispose(json);
CkMailMan_Dispose(mailman);
CkEmail_Dispose(email);

end;

 

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