PHP mail may be filtered out by spam?

Posted by Derek on Stack Overflow See other posts from Stack Overflow or by Derek
Published on 2012-10-08T21:36:20Z Indexed on 2012/10/08 21:36 UTC
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I am creating a small company, and would like to send out emails to my clients once they have signed up for my service to activate their accounts. I am currently using PHP's mail() function, however I am worried that my emails are being filtered out by spam filters. Is there a better way to go about this?

$email = 'XZY Client Email address @ somedomain.com';

$emailSubject = "Welcome to XYZ Service!";

$to = $email;
$subject .= "".$emailSubject."";
$headers .= "From: [email protected]\r\n" .
 "X-Mailer: php";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";
$message = "<html><body>";
$message .= "Welcome to XYZ Service! \n Activate your account by clicking the following link: link...";

mail($to, $subject, $message, $headers);

Is there a way to authenticate these emails so that my clients know that they are from my actual service? Thank you in advance!

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