Asked  2 Years ago    Answers:  5   Viewed   1.3k times

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

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??

 Answers

4

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");
Wednesday, November 2, 2022
4

Well, after a long battle I somehow managed to solve this. I activated DisplayUnlockCaptcha from the following URL: https://accounts.google.com/b/0/DisplayUnlockCaptcha

Probably because Gmail might have viewed the logins received from PHP file lying in hosting server as untrusted requests. This is because the hosting servers may reside in different places or countries and the login authentication request received would appear different other than the one from where the Gmail account is logged in frequently. So as a security measure, it would have use some captcha mechanism in the background (which which cannot be viewed)

Wednesday, December 7, 2022
 
dhinesh
 
5

It sounds like your web host is blocking outbound connections to smtp.gmail.com:465. Suggestions:

  1. Verify: If you have shell/terminal access to your web hosting server, try a telnet test to verify that they are in fact blocking this. Run telnet smtp.gmail.com 465

  2. Contact: Call or email your hosting provider and find out what SMTP server they provide for outbound relay. Make sure they know you want to use your @gmail.com address as the From/Reply-to address.

  3. Update code: Once your host provides you with a different mail server, update your code and try again.

If your web host doesn't allow outbound relay from its servers at all, then you need to look at switching hosts, if this is a requirement for your application.

Saturday, August 27, 2022
 
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.

Tuesday, November 22, 2022
 
2

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 => “[email protected]”,
    :password => ’someonesPassword’
    } 

Use ActionMailer as normal.

Tuesday, November 22, 2022
 
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