Mail could not be send using php

Question

Hope all of my experts are fine. Buddy's i stuck in a very simple code. Actually i have to insert a form and then fetch values from it to send mail to the user who fills the form. All the values are inserting into the database and also fetch from database but mail is not sending. The same code was sending mail one day ago. But today it is not sending mail. Please help me out in this.

<?php

    require("dbconnect.php");
    require("DBConnection.php");


    session_start();

    if(isset($_POST['postadd'])){

    $title = $_POST['adtitle'];
    $area = $_POST['area'];
    $addesc = $_POST['addesc'];
    $email = $_POST['email'];
    $showemail = $_POST['showemail'];
    $userpic = ($_FILES['pic1']['tmp_name']);
        $compath = "UploadPictures/".md5($_FILES['pic1']['name']);
        $comFileType=$_FILES['pic1']['type'];
        $comFileSize=$_FILES['pic1']['size'];
        $comFileSize=$comFileSize/1024;

            if($comFileSize<1000)
            {
                $arrFileType=array("image/jpeg","image/png","image/gif","image/bmp");
                if(in_array($comFileType,$arrFileType))

                {

                    move_uploaded_file($userpic,$compath);
                }
                else
                {
                    ("Invalid Image Format");   
                }
            }
            else
            {
                ("File Size Error");    
            }

            $pic2 = ($_FILES['pic2']['tmp_name']);
        $compath2 = "UploadPictures/".md5($_FILES['pic2']['name']);
        $comFileType2=$_FILES['pic2']['type'];
        $comFileSize2=$_FILES['pic2']['size'];
        $comFileSize2=$comFileSize2/1024;

            if($comFileSize2<1000)
            {
                $arrFileType2=array("image/jpeg","image/png","image/gif","image/bmp");
                if(in_array($comFileType2,$arrFileType2))

                {

                    move_uploaded_file($pic2,$compath2);
                }
                else
                {
                    ("Invalid Image Format");   
                }
            }
            else
            {
                ("File Size Error");    
            }

        $pic3 = ($_FILES['pic3']['tmp_name']);
        $compath3 = "UploadPictures/".md5($_FILES['pic2']['name']);
        $comFileType3=$_FILES['pic3']['type'];
        $comFileSize3=$_FILES['pic3']['size'];
        $comFileSize3=$comFileSize3/1024;

            if($comFileSize3<1000)
            {
                $arrFileType3=array("image/jpeg","image/png","image/gif","image/bmp");
                if(in_array($comFileType3,$arrFileType3))

                {

                    move_uploaded_file($pic3,$compath3);
                }
                else
                {
                    ("Invalid Image Format");   
                }
            }
            else
            {
                ("File Size Error");    
            }

        $pic4 = ($_FILES['pic4']['tmp_name']);
        $compath4 = "UploadPictures/".md5($_FILES['pic4']['name']);
        $comFileType4=$_FILES['pic4']['type'];
        $comFileSize4=$_FILES['pic4']['size'];
        $comFileSize4=$comFileSize4/1024;

            if($comFileSize4<1000)
            {
                $arrFileType4=array("image/jpeg","image/png","image/gif","image/bmp");
                if(in_array($comFileType4,$arrFileType4))

                {

                    move_uploaded_file($pic4,$compath4);
                }
                else
                {
                    ("Invalid Image Format");   
                }
            }
            else
            {
                ("File Size Error");    
            }
        $agree = $_POST['checkbox'];
        $subcat = $_SESSION['subcat'];
        $cat = $_SESSION['cat'];
        $rand = rand();
        $datecreated = date("Y-m-d h:i:s");

            $obj = new DBConnection();
            $arr_Field = array("title","location","post","email","radio","pic1","pic2","pic3","pic4","agree","cat","subcat","random","datecreated");
            $arr_values = array("$title","$area","$addesc","$email","$showemail","$compath","$compath2","$compath3","$compath4","$agree", "$cat", "$subcat" ,"$rand","$datecreated");
            $obj->InsertRecord("ads",$arr_Field,$arr_values) or die (mysql_error());

            $object = new DBConnection();
                $condition = "ORDER BY id DESC LIMIT 1";
                $selquery = $object->SelectRecord(array("*"),"ads","$condition") or die(mysql_error()); 
                while($get = mysql_fetch_array($selquery)){
                $email = $get['email'];
                $id = $get['id'];
                }
                //echo $email;
                //exit();

$to = $email;
$subject = "Admin";

$message = "
<html>
<head>
<title>Admin</title>
</head>
<body>
<p>Please Click on this Link to verify your post</p>
<p><a href='http://almughnisolutions.com/almughniclassified/summary.php?summary=".$id."'>http://almughnisolutions.com/almughniclassified/summary.php?summary=".$id."</a></p>
</body>
</html>
";

// Always set content-type when sending HTML email
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=iso-8859-1" . "\r\n";

// More headers
$headers .= 'From: <admin@almughniclassfied.com>' . "\r\n";

mail($to,$subject,$message,$headers) or die("Mail Cannot sent");

            //header("Location:verifyadd.php");

    }

    ?>

Answer 1

It would probably be a safe assumption that your code is not to blame. A cursory review of it seems like it shuold work if the SMPT server is behaving correctly. I would recommend testing the server. There are a some web based tools to do this:

https://www.wormly.com/test_smtp_server

You could also just use telnet to test from your machine if it's something that will need to be done internally:

http://technet.microsoft.com/en-us/library/aa995718%28v=exchg.65%29.aspx