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Send Email using Yahoo in Delphi

In previous section, I introduced how to send email using Gmail account. In this section, I will introduce how to send email using Yahoo account in Delphi.

Introduction

Yahoo SMTP server address is smtp.mail.yahoo.com. It supports both Normal/Implicit SSL/Explicit SSL (TLS) connection to do user authentication, and you should use your Yahoo email address as the user name for ESMTP authentication. For example: your email is myid@yahoo.com, and then the user name should be myid@yahoo.com.

If you want to use implicit SSL connection with Yahoo SMTP server, you must set the port to 465.

Server Port SSL/TLS
smtp.mail.yahoo.com 25, 587 TLS
smtp.mail.yahoo.com 465 SSL

Note

Remarks: All of samples in this section are based on first section: Send email in a simple Delphi project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference of EASendMail to your project.

Important

If you got authentication error, you need to enable Allowing less secure apps in your Yahoo account. Or you can generate App Passwords and use this app password instead of your user password.

Although Yahoo supports OAUTH, but it doesn’t provide mail permission, so OAUTH is not a solution for Yahoo mail.

[Delphi - Send email using Yahoo over Implicit SSL on 465 port - Example]

The following example codes demonstrate how to send email using Yahoo account in Delphi over SSL 465 port.

Note

To get the full sample projects, please refer to Samples section.

unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, EASendMailObjLib_TLB; // add EASendMail unit
type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

const
  ConnectNormal = 0;
  ConnectSSLAuto = 1;
  ConnectSTARTTLS = 2;
  ConnectDirectSSL = 3;
  ConnectTryTLS = 4;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  oSmtp : TMail;
begin
  oSmtp := TMail.Create(Application);
  oSmtp.LicenseCode := 'TryIt';

  // Your Yahoo email address
  oSmtp.FromAddr := 'myid@yahoo.com';
  // Add recipient email address
  oSmtp.AddRecipientEx('support@emailarchitect.net', 0);

  // Set email subject
  oSmtp.Subject := 'simple email from Yahoo account';
  // Set email body
  oSmtp.BodyText := 'this is a test email sent from Delphi using Yahoo';

  // Yahoo SMTP server address
  oSmtp.ServerAddr := 'smtp.mail.yahoo.com';

  // Because yahoo deploys SMTP server on 465 port with direct SSL connection.
  // So we should change the port to 465.
  oSmtp.ServerPort := 465;

  // detect SSL/TLS automatically
  oSmtp.ConnectType := ConnectSSLAuto;

  // For example: your email is "myid@yahoo.com", then the user should be "myid@yahoo.com"
  oSmtp.UserName := 'myid@yahoo.com';
  oSmtp.Password := 'yourpassword';

  ShowMessage('start to send email ...');
  if oSmtp.SendMail() = 0 then
    ShowMessage('email was sent successfully!')
  else
    ShowMessage('failed to send email with the following error: '
    + oSmtp.GetLastErrDescription());

end;

end.

[Delphi - Send Email using Yahoo over Explicit SSL (TLS) on 25 or 587 Port - Example]

The following example codes demonstrate how to send email using Yahoo account in Delphi over TLS 587 port.

Note

To get the full sample projects, please refer to Samples section.

unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, EASendMailObjLib_TLB; // add EASendMail unit
type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

const
  ConnectNormal = 0;
  ConnectSSLAuto = 1;
  ConnectSTARTTLS = 2;
  ConnectDirectSSL = 3;
  ConnectTryTLS = 4;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  oSmtp : TMail;
begin
  oSmtp := TMail.Create(Application);
  oSmtp.LicenseCode := 'TryIt';

  // Your Yahoo email address
  oSmtp.FromAddr := 'myid@yahoo.com';
  // Add recipient email address
  oSmtp.AddRecipientEx('support@emailarchitect.net', 0);

  // Set email subject
  oSmtp.Subject := 'simple email from Yahoo account';
  // Set email body
  oSmtp.BodyText := 'this is a test email sent from Delphi using Yahoo';

  // Yahoo SMTP server address
  oSmtp.ServerAddr := 'smtp.mail.yahoo.com';

  // set 587 port, if you want to use 25 port, please change 587 to 25
  oSmtp.ServerPort := 587;

  // detect SSL/TLS automatically
  oSmtp.ConnectType := ConnectSSLAuto;

  // For example: your email is "myid@yahoo.com", then the user should be "myid@yahoo.com"
  oSmtp.UserName := 'myid@yahoo.com';
  oSmtp.Password := 'yourpassword';

  ShowMessage('start to send email ...');
  if oSmtp.SendMail() = 0 then
    ShowMessage('email was sent successfully!')
  else
    ShowMessage('failed to send email with the following error: '
    + oSmtp.GetLastErrDescription());

end;

end.

TLS 1.2

TLS is the successor of SSL, more and more SMTP servers require TLS 1.2 encryption now.

If your operating system is Windows XP/Vista/Windows 7/Windows 2003/2008/2008 R2/2012/2012 R2, and you got connection error with SSL/TLS connection, you need to enable TLS 1.2 protocol in your operating system like this:

Enable TLS 1.2 on Windows XP/Vista/7/10/Windows 2008/2008 R2/2012

Next Section

At next section I will introduce how to send email using Hotmail/Live/Outlook/Office 365 account in Delphi.

Appendix

Comments

If you have any comments or questions about above example codes, please click here to add your comments.

See Also