SMTP server response: 530 5.7.0 Must issue a STARTTLS command first

Question 1

I get this error message when i use mail() function in php script file...

I m using gmail SMTP server and gmail using STARTTLS which is secure SSL and i already use these commands in my contact.php file

ini_set("SMTP","smtp.gmail.com");
ini_set("sendmail_from","<email-address>@gmail.com>");

so what command i can use to enable STARTTLS or configure in php,ini file??

Question 2

First, make sure you PHP installation has SSL support (look for an "openssl" section in the output from phpinfo()).

You can set the following settings in your PHP.ini:

ini_set("SMTP","ssl://smtp.gmail.com");
ini_set("smtp_port","465");

Question 3

For sending mails, try PHPMailer, it's tested, everybody uses it, and it just works. It also has a lot of features and configuration options.

The latest version is this one, as for sending mails using SMTP with PHPMailer this is all the code you need

// Data received from POST request
$name = stripcslashes($_POST['name']);
$emailAddr = stripcslashes($_POST['email']);
$issue = stripcslashes($_POST['issue']);
$comment = stripcslashes($_POST['message']);
$subject = stripcslashes($_POST['subject']);   

// Send mail
$mail = new PHPMailer();
$mail->IsSMTP(); // telling the class to use SMTP

// SMTP Configuration
$mail->SMTPAuth = true;                  // enable SMTP authentication
$mail->Host = "myhost"; // SMTP server
$mail->Username = "yourusername@gmail.com";
$mail->Password = "yourpassword";            
//$mail->Port = 465; // optional if you don't want to use the default 

$mail->From = "my@email.com";
$mail->FromName = "My Name";
$mail->Subject = $subject;
$mail->AltBody = "To view the message, please use an HTML compatible email viewer!"; // optional, comment out and test
$mail->MsgHTML($issue . "<br /><br />" . $comment);

// Add as many as you want
$mail->AddAddress($emailAddr, $name);

// If you want to attach a file, relative path to it
//$mail->AddAttachment("images/phpmailer.gif");             // attachment

$response= NULL;
if(!$mail->Send()) {
    $response = "Mailer Error: " . $mail->ErrorInfo;
} else {
    $response = "Message sent!";
}

$output = json_encode(array("response" => $response));  
header('content-type: application/json; charset=utf-8');
echo($output);

Question 4

It worked for me when i remove following..

//$mail->SMTPSecure = "tls";

Question 5

You are probably attempting to use Gmail's servers on port 25 to deliver mail to a third party over an unauthenticated connection. Gmail doesn't let you do this, because then anybody could use Gmail's servers to send mail to anybody else. This is called an open relay and was a common enabler of spam in the early days. Open relays are no longer acceptable on the Internet.

You will need to ask your SMTP client to connect to Gmail using an authenticated connection, probably on port 587.

Question 6

I used Alexander Pomozov's solution to talk to Gmail from my Rails app. I believe the original article is gone but someone has reproduced the Google cache over here.

lib/smtp_tls.rb

require "openssl"
require "net/smtp"

Net::SMTP.class_eval do
  private
  def do_start(helodomain, user, secret, authtype)
    raise IOError, 'SMTP session already started' if @started
    check_auth_args user, secret, authtype if user or secret

    sock = timeout(@open_timeout) { TCPSocket.open(@address, @port) }
    @socket = Net::InternetMessageIO.new(sock)
    @socket.read_timeout = 60 #@read_timeout
    #@socket.debug_output = STDERR #@debug_output

    check_response(critical { recv_response() })
    do_helo(helodomain)

    if starttls
      raise 'openssl library not installed' unless defined?(OpenSSL)
      ssl = OpenSSL::SSL::SSLSocket.new(sock)
      ssl.sync_close = true
      ssl.connect
      @socket = Net::InternetMessageIO.new(ssl)
      @socket.read_timeout = 60 #@read_timeout
      #@socket.debug_output = STDERR #@debug_output
      do_helo(helodomain)
    end

    authenticate user, secret, authtype if user
    @started = true
  ensure
    unless @started
      # authentication failed, cancel connection.
      @socket.close if not @started and @socket and not @socket.closed?
      @socket = nil
    end
  end

  def do_helo(helodomain)
    begin
      if @esmtp
        ehlo helodomain
      else
        helo helodomain
      end
    rescue Net::ProtocolError
      if @esmtp
        @esmtp = false
        @error_occured = false
        retry
      end
      raise
    end
  end

  def starttls
    getok('STARTTLS') rescue return false
    return true
  end

  def quit
    begin
      getok('QUIT')
    rescue EOFError, OpenSSL::SSL::SSLError
    end
  end
end

config/environment.rb

(add after everything else)

    require “smtp_tls”

    ActionMailer::Base.smtp_settings = {
    :address => “smtp.gmail.com”,
    :port => 587,
    :authentication => :plain,
    :user_name => “someone@openrain.com”,
    :password => ’someonesPassword’
    }

Use ActionMailer as normal.

SMTP server response: 530 5.7.0 Must issue a STARTTLS command first

Answers

lib/smtp_tls.rb

config/environment.rb

php,smtp