无法使用php-pear 5.6发送电子邮件

Question

I have a php scrip that emails. After the recent update to php and php-pear to 5.6 it no longer works and I get a authentication error.

$from = "no-reply@mydomain.net";
 $port = "587";
 $to=$d_uname;
 $host = "smtp.sendgrid.net";
 $username = "username";
 $password = "password";

         $headers = array ('From' => $d_replyto,
           'To' => $to,
           'Subject' => $d_subject,
       'MIME-Version' => "1.0",
       'Content-type' => "text/plain; charset=utf-8",
     );
         $smtp = Mail::factory('smtp',
           array ('host' => $host,
             'port' => $port,
             'auth' => true,
             'username' => $username,
             'password' => $password));

 #Email it
 if (PEAR::isError($smtp)) {
     error_log("<p>" . $smtp->getMessage() . "</p>");
    }
 $mail = $smtp->send($to, $headers, $d_message);

When trying to send emails this way I get the following error:

authentication failure [SMTP: STARTTLS failed (code: 220, response: Begin TLS negotiation now)]

Any ideas what's wrong here? Downgrading PHP and PHP-pear resolves the issue.

Cheers!

Answer 1

I had the same problem and was looking for an answer. This question is kinda old but I will leave a few words of explanation for someone else. The problem is that PEAR SMTP class, which extend PEAR Mail, is not yet updated for php 5.6. Since php 5.6 you won't be able to use PEAR Mail for "unclean" TLS connections. It has something to do with OpenSSL changes. It will work for some SMTP's, like Gmail's on port 465, but nowhere else. You need to use 'auth' => false or switch to PHP Mailer

Answer 2

You can hard-code the options required to allow self-signed certificates by including them on line 208 of Socket.php

else{         // if $fp does exist
  stream_context_set_option($fp, 'ssl', 'verify_peer', false);
  stream_context_set_option($fp, 'ssl', 'allow_self_signed', true);
  stream_context_set_option($fp, 'ssl', 'verify_peer_name', false);
    }