我正在使用php邮件程序功能如何防止我的电子邮件不是垃圾邮件

Question

email function

     function sendAuthEmail($to,$subject,$body) 
        { 
            $mail_host                      = 'smtp.gmail.com';
            $mail_port                      = 465;
            $mail_username                  = '[e-mail]';
            $mail_password                  = '123#';

            if (!class_exists("phpmailer")) 
            {
            include("application/third_party/email/class.phpmailer.php");
            }
            $mail = new PHPMailer();
            $mail->IsSMTP(); // set mailer to use SMTP
            $mail->SMTPDebug        = 1; // debugging: 1 = errors and messages, 
           2 = messages only
            $mail->Host             = $mail_host; // specify main and backup server
            $mail->SMTPAuth         = true; // turn on SMTP authentication
            $mail->SMTPSecure       = 'ssl'; // secure transfer enabled REQUIRED for Gmail
            $mail->Port             = $mail_port; // or 587
            $mail->Username         = $mail_username; // SMTP username
            $mail->Password         = $mail_password; // SMTP password
            $mail->From             = "[e-mail]"; 
            $mail->FromName         = "Genius Tech Group";
            $mail->AddAddress($to); // Email on we want to send mail
            $mail->IsHTML(true);
            $mail->Subject              = $subject;
            $mail->Body                 = $body;
            if(!$mail->Send()) 
            {  
                return false;
            } 
            else 
            {
                return true;
            }
        }  

Answer 1

More often then not, the outcome of your email being delivered straight to the spam folder is not a result of the agent using for sending it. But rather it is related to the settings of your domain's DNS and of the sending server. Each email is evaluated and if it doesn't meet a threshold score, it will be either considered spam or totally bounced(in extreme cases).

The content of the email will also play a role, as well as the sending domains's reputation.

Make sure to check if your domain or the server's ip are not blacklisted.

First things you should do is to make sure that your emails are DKIM signed and the dns of your domain has the proper SPF record. You can get an overview of these two reading this article.

I also suggest you to do a bit of "troubleshooting" first. You can send one of your emails to a service such mail-tester.com and you will discover the main areas where you could improve.

Good luck!