如何发送通知电子邮件给用户，避免被phpgmailer标记为垃圾邮件？

Question

I`m using PHPGmailer to sent some important notification for registered user. The email is Google App powered.

here is my configuration for sent email function with PHPGMailer class:

function send_mail($to, $subject, $content)
{
    $mail = new PHPGMailer();
    $mail->Username = 'info@domain.com'; 
    $mail->Password = 'xxxxxx';
    $mail->From = 'info@domain.com'; 
    $mail->FromName = 'domain';
    $mail->Subject = $subject;
    $mail->CharSet = 'UTF-8';
    $mail->AddAddress($to);
    $mail->IsHTML(true);
    $mail->Body = $content;
    $mail->Send();  
}

Is it good enough to sent notification and prevent to be marked as spam? Or add some more additional configuration and settings?

Answer 1

A big part of preventing emails from being marked as spam is your mail server setup.

A google search for 'prevent emails from being marked as spam' returns a bunch of info.