define('SITE_EMAIL', 'example@mydomain.la');
$to1= SITE_EMAIL;
$subject1 = "Contacto Web";
$message1 = 'Hi!';
$headers1 = "MIME-Version: 1.0'r'n";
$headers1 .= "Content-type: text/html; charset=iso-8859-1'r'n";
$headers1 .= "From: ".$_POST['name']." <".$_POST['email'].">'r'n";
mail($to1, $subject1, $message1, $headers1);
print "message send!";
我正在使用这个代码从联系表单发送电子邮件。但大部分都变成了垃圾邮件，甚至没有发送出去。他们的建议是验证头文件。表单和php文件在我的域，但我使用谷歌应用程序，所以我想我必须使用谷歌smtp。但是我真的不知道怎么…
我不认为在gmail中使用mail()是一种简单的方法。
试试phpmailer
这是一个使用gmail的例子:
require_once('../class.phpmailer.php');
//include("class.smtp.php"); // optional, gets called from within class.phpmailer.php if not already loaded
$mail = new PHPMailer();
$body = file_get_contents('contents.html');
$body = eregi_replace("[']",'',$body);
$mail->IsSMTP(); // telling the class to use SMTP
$mail->Host = "mail.yourdomain.com"; // SMTP server
$mail->SMTPDebug = 2; // enables SMTP debug information (for testing)
// 1 = errors and messages
// 2 = messages only
$mail->SMTPAuth = true; // enable SMTP authentication
$mail->SMTPSecure = "tls"; // sets the prefix to the servier
$mail->Host = "smtp.gmail.com"; // sets GMAIL as the SMTP server
$mail->Port = 587; // set the SMTP port for the GMAIL server
$mail->Username = "yourusername@gmail.com"; // GMAIL username
$mail->Password = "yourpassword"; // GMAIL password
$mail->SetFrom('name@yourdomain.com', 'First Last');
$mail->AddReplyTo("name@yourdomain.com","First Last");
$mail->Subject = "PHPMailer Test Subject via smtp (Gmail), basic";
$mail->AltBody = "To view the message, please use an HTML compatible email viewer!"; // optional, comment out and test
$mail->MsgHTML($body);
$address = "whoto@otherdomain.com";
$mail->AddAddress($address, "John Doe");
$mail->AddAttachment("images/phpmailer.gif"); // attachment
$mail->AddAttachment("images/phpmailer_mini.gif"); // attachment
if(!$mail->Send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Message sent!";
}