sending email via php mail function goes to spam

The problem is simple that the PHP-Mail function is not using a well configured SMTP Server.

Nowadays Email-Clients and Servers perform massive checks on the emails sending server, like Reverse-DNS-Lookups, Graylisting and whatevs. All this tests will fail with the php mail() function. If you are using a dynamic ip, its even worse.

Use the PHPMailer-Class and configure it to use smtp-auth along with a well configured, dedicated SMTP Server (either a local one, or a remote one) and your problems are gone.

https://github.com/PHPMailer/PHPMailer

Try changing your headers to this:

$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type: text/html; charset=iso-8859-1" . "\r\n";
$headers .= "From: [email protected]" . "\r\n" .
"Reply-To: [email protected]" . "\r\n" .
"X-Mailer: PHP/" . phpversion();

For a few reasons.

• One of which is the need of a Reply-To and,

• The use of apostrophes instead of double-quotes. Those two things in my experience with forms, is usually what triggers a message ending up in the Spam box.

You could also try changing the $from to:

$from = "[email protected]";

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EDIT:

See these links I found on the subject https://stackoverflow.com/a/9988544/1415724 and https://stackoverflow.com/a/16717647/1415724 and https://stackoverflow.com/a/9899837/1415724

https://stackoverflow.com/a/5944155/1415724 and https://stackoverflow.com/a/6532320/1415724

• Try using the SMTP server of your ISP.

  Using this apparently worked for many: X-MSMail-Priority: High

http://www.webhostingtalk.com/showthread.php?t=931932

"My host helped me to enable DomainKeys and SPF Records on my domain and now when I send a test message to my Hotmail address it doesn't end up in Junk. It was actually really easy to enable these settings in cPanel under Email Authentication. I can't believe I never saw that before. It only works with sending through SMTP using phpmailer by the way. Any other way it still is marked as spam."

PHPmailer sending mail to spam in hotmail. how to fix http://pastebin.com/QdQUrfax