How to send mail to gmail using php

Hi,

I have a email "test@seoimpressions.com" from gmail.com and have a contact form on http://www.seoimpressions.com.

I am using php code to send form value to "test@seoimpressions.com" gmail account but code is not working while for other email this code works fine.

Any one help me for this.

CODE IS:

$my_email = "test@seoimpressions.com";
$message = build_message($_REQUEST);

$continue = "/";

$errors = array();


if(count($_COOKIE)){foreach(array_keys($_COOKIE) as $value){unset($_REQUEST[$value]);}}


function recursive_array_check_header($element_value)
{

global $set;

if(!is_array($element_value)){if(preg_match("/(%0A|%0D|\n+|\r+)(content-type:|to:|cc:|bcc:)/i",$element_value)){$set = 1;}}
else
{

foreach($element_value as $value){if($set){break;} recursive_array_check_header($value);}

}

}

recursive_array_check_header($_REQUEST);

if($set){$errors[] = "You cannot send an email header";}

unset($set);


if(isset($_REQUEST['email']) && !empty($_REQUEST['email']))
{

if(preg_match("/(%0A|%0D|\n+|\r+|:)/i",$_REQUEST['email'])){$errors[] = "Email address may not contain a new line or a colon";}

$_REQUEST['email'] = trim($_REQUEST['email']);

if(substr_count($_REQUEST['email'],"@") != 1 || stristr($_REQUEST['email']," ")){$errors[] = "Email address is invalid";}else{$exploded_email = explode("@",$_REQUEST['email']);if(empty($exploded_email[0]) || strlen($exploded_email[0]) > 64 || empty($exploded_email[1])){$errors[] = "Email address is invalid";}else{if(substr_count($exploded_email[1],".") == 0){$errors[] = "Email address is invalid";}else{$exploded_domain = explode(".",$exploded_email[1]);if(in_array("",$exploded_domain)){$errors[] = "Email address is invalid";}else{foreach($exploded_domain as $value){if(strlen($value) > 63 || !preg_match('/^[a-z0-9-]+$/i',$value)){$errors[] = "Email address is invalid"; break;}}}}}}

}


if(!(isset($_SERVER['HTTP_REFERER']) && !empty($_SERVER['HTTP_REFERER']) && stristr($_SERVER['HTTP_REFERER'],$_SERVER['HTTP_HOST']))){$errors[] = "You must enable referrer logging to use the form";}


function recursive_array_check_blank($element_value)
{

global $set;

if(!is_array($element_value)){if(!empty($element_value)){$set = 1;}}
else
{

foreach($element_value as $value){if($set){break;} recursive_array_check_blank($value);}

}

}

recursive_array_check_blank($_REQUEST);

if(!$set){$errors[] = "You cannot send a blank form";}

unset($set);


if(count($errors)){foreach($errors as $value){print "$value<br>";} exit;}

if(!defined("PHP_EOL")){define("PHP_EOL", strtoupper(substr(PHP_OS,0,3) == "WIN") ? "\r\n" : "\n");}


function build_message($request_input){if(!isset($message_output)){$message_output ="";}if(!is_array($request_input)){$message_output = $request_input;}else{foreach($request_input as $key => $value){if(!empty($value)){if(!is_numeric($key)){$message_output .= str_replace("_"," ",ucfirst($key)).": ".build_message($value).PHP_EOL.PHP_EOL;}else{$message_output .= build_message($value).", ";}}}}return rtrim($message_output,", ");}

$message = build_message($_REQUEST);

$message = $message . PHP_EOL.PHP_EOL."-- ".PHP_EOL."";

$message = stripslashes($message);

$subject = "FormToEmail Comments";

$headers = "From: " . $_REQUEST['email'];

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





Thanks and Regards