创建设文件testport.php(来自老外的论坛)

<?php

if(!function_exists('fsockopen')) {

echo '<span style="color:red">fsockopen is not enabled</span>';

return;

}

$tests = array(25 => 'smtp.sendgrid.com',2525 => 'smtp.sendgrid.com',587 => 'smtp.sendgrid.com',465 => 'ssl://smtp.sendgrid.com');

foreach($tests as $port => $server){

$fp = @fsockopen($server,$port,$errno,$errstr,5);

if($fp){

echo '<br/><span style="color:green" >Port '.$port.' opened on your server</span>';

fclose($fp);

}else{

echo '<br/><span style="color:red" >Port '.$port.' NOT opened on your server</span>';

echo " errornum: ".$errno.' : '.$errstr;

}

}

?>

fsockopen is not enabled 如果出现这个错误（我只碰到这个，端口都没问题）

百度上有

关键三步

修改php.ini文件

disable_functions 这个变量中去掉 fsockopen 在最后面

allow_url_fopen = on

extension=php_openssl.dll 去掉前面分号(gmail 用的端口协议是ssl的，所以服务器得有openssl服务，若没有度娘之)

附带zencart zen_email函数未例

$html_msg=array();

$html_msg['EMAIL_MTCN'] = 'mtcn';

$html_msg['EMAIL_ELSE'] = 'it is test';

$name='first';

$email_address='xxx@gmail.com';

$subject='Test Email ?';

$email_text='there is test text'."\n\n";

$store_name='My Shop';

$from_email_address='xxx@gmail.com';

zen_mail($name, $email_address, $subject, $email_text, $store_name, $from_email_address, $html_msg, 'western_union');