"could not open socket" error

Boy, this one sure has me stumped.

Despite using the amendment to the catch block that you so graciously suggested, and turning off my firewall, and antivirus software, all I get is the error message "could not open socket" at the top of the browser (various) document window (and a resetting of all fields and textarea):

Here are my files. (I understand I will be changing my passwords, and getting a new recaptcha key, but I am desperate to fix this):

I also amended the mail_connector.php script using the (Outgoing Mail Server: (SSL) server306.webhostingpad.com (server requires authentication) port 465) choice below with the same result.

My hosting company provided this to me for manual setting of email:

Manual Settings

Mail Server Username: test1+housecalls4pets.com

Incoming Mail Server: mail.housecalls4pets.com

Incoming Mail Server: (SSL) server306.webhostingpad.com

Outgoing Mail Server: mail.housecalls4pets.com (server requires authentication) port 2626

Outgoing Mail Server: (SSL) server306.webhostingpad.com (server requires authentication) port 465

Supported Incoming Mail Protocols: POP3, POP3S (SSL/TLS), IMAP, IMAPS (SSL/TLS)

Supported Outgoing Mail Protocols: SMTP, SMTPS (SSL/TLS)

***************************************************************************************

library.php:

<?php
// Adjust the path to match the location of the library folder on your system
$library = 'C:/php_library/ZendFramework-1.11.4-minimal/library';
set_include_path(get_include_path() . PATH_SEPARATOR . $library);
require_once('Zend/Loader/Autoloader.php');
try {
  Zend_Loader_Autoloader::getInstance();
  $write = array('host'     => 'localhost',
     'username' => 'cs5write',
     'password' => 'Bow!e#CS5',
     'dbname'   => 'phpcs5');
  $read  = array('host'     => 'localhost',
     'username' => 'cs5read',
     'password' => '5T@rmaN',
     'dbname'   => 'phpcs5');
 
  // Comment out the next two lines if using mysqli
  // and remove the comments from the last two lines
  $dbWrite = new Zend_Db_Adapter_Pdo_Mysql($write);
  $dbRead = new Zend_Db_Adapter_Pdo_Mysql($read);
 
  //$dbWrite = new Zend_Db_Adapter_Mysqli($write);
  //$dbRead = new Zend_Db_Adapter_Mysqli($read);
}
catch (Exception $e) {
    echo 'Class: ' . get_class($e) . ' says: ' . $e->getMessage();
}

***************************************************************************************

mail_connector.php:

<?php
$mailhost = 'smtp.mail.housecalls4pets.com';
$mailconfig = array('auth' => 'login',
      'username' =>'test1@housecalls4pets.com',
     'password' => 'Buffy1481',
     'port'    => '2626');
$transport = new Zend_Mail_Transport_Smtp($mailhost, $mailconfig);
Zend_Mail::setDefaultTransport($transport);

***************************************************************************************

process_comments.php

<?php
require_once('library.php');
$errors = array();
try {
  $public_key = '6LekzsUSAAAAAP99fQ32-j-qlp2wUWqeUc3_HvkX';
  $private_key = '6LekzsUSAAAAAHxKj135LEE9zoAxQng1A3azJYgE';
  $recaptcha = new Zend_Service_ReCaptcha($public_key, $private_key);
  if (isset($_POST['send'])) {
// validate the user input
if (empty($_POST['recaptcha_response_field'])) {
   $errors['recaptcha'] = 'reCAPTCHA field is required';
} else {
   $result = $recaptcha->verify($_POST['recaptcha_challenge_field'], $_POST['recaptcha_response_field']);
   if (!$result->isValid()) {
  $errors['recaptcha'] = 'Try again';
   }
}
$val = new Zend_Validate_Alnum(TRUE);
if (!$val->isValid($_POST['name'])) {
   $errors['name'] = 'Name is required';
}
$val = new Zend_Validate_EmailAddress();
if (!$val->isValid($_POST['email'])) {
   $errors['email'] = 'Email address is required';
}
$val = new Zend_Validate_StringLength(10);
if (!$val->isValid($_POST['comments'])) {
   $errors['comments'] = 'Required';
}
if (!$errors) {
  // create and send the email
    require_once('mail_connector.php');
    $mail = new Zend_Mail('UTF-8');
    $mail->addTo('test2@housecalls4pets.com', 'A N Other');
    $mail->setFrom('test1@housecalls4pets.com', 'Zend Mail Test');
    $mail->setSubject('Comments from feedback form');
    $mail->setReplyTo($_POST['email'], $_POST['name']);
    $text = "Name: {$_POST['name']}\r\n\r\n";
    $text .= "Email: {$_POST['email']}\r\n\r\n";
    $text .= "Comments: {$_POST['comments']}";
    $html = "<p><strong>Name: </strong><a href='mailto:{$_POST['email']}'>{$_POST['name']}</a></p>";
    $html .= '<p><strong>Comments: </strong>' . nl2br($_POST['comments']) . '</p>';
    $mail->setBodyText($text, 'UTF-8');
    $mail->setBodyHtml($html, 'UTF-8');
    $success = $mail->send();
    if (!$success) {
      $errors = TRUE;
    }
}
  }
} catch (Exception $e) {
  echo $e->getMessage();
}
?>

***************************************************************************************

comments.php:

<?php
require_once('scripts/process_comments.php');
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Contact Us</title>
<link href="../../styles/users_wider.css" rel="stylesheet" type="text/css" />
</head>

<body>
<h1>Get In Touch</h1>
<form id="form1" name="form1" method="post" action="">
  <?php if (isset($success) && !$errors) { ?>
  <p>Thank you. Your comments have been sent.</p>
  <?php } elseif (isset($success) && $errors) { ?>
  <p>Sorry, there was a problem. Please try later.</p>
  <?php } ?>
  <p>All fields are required</p>
  <p>
    <label for="name">Your name:</label>
    <input value="<?php if ($_POST && $errors) {
  echo htmlentities($_POST['name'], ENT_COMPAT, 'UTF-8');
}?>" type="text" name="name" id="name" />
    <span>
    <?php if ($_POST && isset($errors['name'])) {
    echo $errors['name'];
} ?>
    </span></p>
  <p>
    <label for="email">Email address:</label>
    <input value="<?php if ($_POST && $errors) {
  echo htmlentities($_POST['email'], ENT_COMPAT, 'UTF-8');
}?>" type="text" name="email" id="email" />
  <span>
  <?php if ($_POST && isset($errors['email'])) {
    echo $errors['email'];
} ?>
  </span></p>
  <p>
    <label for="comments">Comments:</label>
    <textarea name="comments" id="comments" cols="45" rows="5"><?php if ($_POST && $errors) {echo htmlentities($_POST['comments'],ENT_COMPAT, 'UTF-8'); }?></textarea>
  <span>
  <?php if ($_POST && isset($errors['comments'])) {
    echo $errors['comments'];
} ?>
  </span></p>
  <?php if (isset($errors['recaptcha'])) {
    echo "<p><span>{$errors['recaptcha']}</span></p>";
  }
  echo $recaptcha->getHtml(); ?>
  <p>
    <input type="submit" name="send" id="send" value="Send Comments" />
  </p>
</form>
</body>
</html>

***************************************************************************************