Solution:

Add a mail header in the mail function:

$header = "From: [email protected]\r\n";
$header.= "MIME-Version: 1.0\r\n";
$header.= "Content-Type: text/html; charset=ISO-8859-1\r\n";
$header.= "X-Priority: 1\r\n";

$status = mail($to, $subject, $message, $header);

if($status)
{
    echo '<p>Your mail has been sent!</p>';
} else {
    echo '<p>Something went wrong. Please try again!</p>';
}
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Solution:

1. Always try sending headers in the mail function.
2. If you are sending mail through localhost then do the SMTP settings for sending mail.
3. If you are sending mail through a server then check the email sending feature is enabled on your server.

Solution:

If you are using an SMTP configuration for sending your email, try using PHPMailer instead. You can download the library from https://github.com/PHPMailer/PHPMailer.

I created my email sending this way:

function send_mail($email, $recipient_name, $message='')
{
    require("phpmailer/class.phpmailer.php");

    $mail = new PHPMailer();

    $mail->CharSet = "utf-8";
    $mail->IsSMTP();                                      // Set mailer to use SMTP
    $mail->Host = "mail.example.com";  // Specify main and backup server
    $mail->SMTPAuth = true;     // Turn on SMTP authentication
    $mail->Username = "myusername";  // SMTP username
    $mail->Password = "p@ssw0rd"; // SMTP password

    $mail->From = "[email protected]";
    $mail->FromName = "System-Ad";
    $mail->AddAddress($email, $recipient_name);

    $mail->WordWrap = 50;                                 // Set word wrap to 50 characters
    $mail->IsHTML(true);                                  // Set email format to HTML (true) or plain text (false)

    $mail->Subject = "This is a Sampleenter code here Email";
    $mail->Body    = $message;
    $mail->AltBody = "This is the body in plain text for non-HTML mail clients";
    $mail->AddEmbeddedImage('images/logo.png', 'logo', 'logo.png');
    $mail->addAttachment('files/file.xlsx');

    if(!$mail->Send())
    {
       echo "Message could not be sent. <p>";
       echo "Mailer Error: " . $mail->ErrorInfo;
       exit;
    }

    echo "Message has been sent";
}
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Solution:

Just add some headers before sending mail:

<?php 
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$from = 'From: yoursite.com'; 
$to = '[email protected]'; 
$subject = 'Customer Inquiry';
$body = "From: $name\n E-Mail: $email\n Message:\n $message";

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

mail($to, $subject, $message, $headers);
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And one more thing. Themail() function is not working in localhost. Upload your code to a server and try.

Solution:

It worked for me on 000webhost by doing the following:

$headers  = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type: text/html; charset=iso-8859-1" . "\r\n";
$headers .= "From: ". $from. "\r\n";
$headers .= "Reply-To: ". $from. "\r\n";
$headers .= "X-Mailer: PHP/" . phpversion();
$headers .= "X-Priority: 1" . "\r\n";
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Enter directly the email address when sending the email:

mail('[email protected]', $subject, $message, $headers)
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Use'' and not"".

This code works, but the email was received with half an hour lag.

Solution:

Mostly themail() function is disabled in shared hosting. A better option is to use SMTP. The best option would be Gmail or SendGrid.

SMTPconfig.php

<?php 
    $SmtpServer="smtp.*.*";
    $SmtpPort="2525"; //default
    $SmtpUser="***";
    $SmtpPass="***";
?>
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SMTPmail.php

<?php
class SMTPClient
{

    function SMTPClient ($SmtpServer, $SmtpPort, $SmtpUser, $SmtpPass, $from, $to, $subject, $body)
    {

        $this->SmtpServer = $SmtpServer;
        $this->SmtpUser = base64_encode ($SmtpUser);
        $this->SmtpPass = base64_encode ($SmtpPass);
        $this->from = $from;
        $this->to = $to;
        $this->subject = $subject;
        $this->body = $body;

        if ($SmtpPort == "") 
        {
            $this->PortSMTP = 25;
        }
        else
        {
            $this->PortSMTP = $SmtpPort;
        }
    }

    function SendMail ()
    {
        $newLine = "\r\n";
        $headers = "MIME-Version: 1.0" . $newLine;  
        $headers .= "Content-type: text/html; charset=iso-8859-1" . $newLine;  

        if ($SMTPIN = fsockopen ($this->SmtpServer, $this->PortSMTP)) 
        {
            fputs ($SMTPIN, "EHLO ".$HTTP_HOST."\r\n"); 
            $talk["hello"] = fgets ( $SMTPIN, 1024 ); 
            fputs($SMTPIN, "auth login\r\n");
            $talk["res"]=fgets($SMTPIN,1024);
            fputs($SMTPIN, $this->SmtpUser."\r\n");
            $talk["user"]=fgets($SMTPIN,1024);
            fputs($SMTPIN, $this->SmtpPass."\r\n");
            $talk["pass"]=fgets($SMTPIN,256);
            fputs ($SMTPIN, "MAIL FROM: <".$this->from.">\r\n"); 
            $talk["From"] = fgets ( $SMTPIN, 1024 ); 
            fputs ($SMTPIN, "RCPT TO: <".$this->to.">\r\n"); 
            $talk["To"] = fgets ($SMTPIN, 1024); 
            fputs($SMTPIN, "DATA\r\n");
            $talk["data"]=fgets( $SMTPIN,1024 );
            fputs($SMTPIN, "To: <".$this->to.">\r\nFrom: <".$this->from.">\r\n".$headers."\n\nSubject:".$this->subject."\r\n\r\n\r\n".$this->body."\r\n.\r\n");
            $talk["send"]=fgets($SMTPIN,256);
            //CLOSE CONNECTION AND EXIT ... 
            fputs ($SMTPIN, "QUIT\r\n"); 
            fclose($SMTPIN); 
            // 
        } 
        return $talk;
    } 
}
?>
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contact_email.php

<?php 
include('SMTPconfig.php');
include('SMTPmail.php');
if($_SERVER["REQUEST_METHOD"] == "POST")
{
    $to = "";
    $from = $_POST['email'];
    $subject = "Enquiry";
    $body = $_POST['name'].'</br>'.$_POST['companyName'].'</br>'.$_POST['tel'].'</br>'.'<hr />'.$_POST['message'];
    $SMTPMail = new SMTPClient ($SmtpServer, $SmtpPort, $SmtpUser, $SmtpPass, $from, $to, $subject, $body);
    $SMTPChat = $SMTPMail->SendMail();
}
?>
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Solution:

If you only use themail()function, you need to complete the configuration file.

You need to open the mail expansion, and set theSMTP smtp_port and so on, and most important, your username and your password. Without that, mail cannot be sent. Also, you can use thePHPMail class to send.

Solution:

Try these two things separately and together:

1. remove theif($_POST['submit']){}
2. remove$from (just my gut)

Solution:

I think this should do the trick. I just added anif(isset and added concatenation to the variables in the body to separate PHP from HTML.

<?php
    $name = $_POST['name'];
    $email = $_POST['email'];
    $message = $_POST['message'];
    $from = 'From: yoursite.com'; 
    $to = '[email protected]'; 
    $subject = 'Customer Inquiry';
    $body = "From:" .$name."\r\n E-Mail:" .$email."\r\n Message:\r\n" .$message;

if (isset($_POST['submit'])) 
{
    if (mail ($to, $subject, $body, $from)) 
    { 
        echo '<p>Your message has been sent!</p>';
    } 
    else 
    { 
        echo '<p>Something went wrong, go back and try again!</p>'; 
    }
}

?>
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Solution:

For anyone who finds this going forward, I would not recommend usingmail. There's some answers that touch on this, but not the why of it.

PHP'smail function is not only opaque, it fully relies on whatever MTA you use (i.e. Sendmail) to do the work.mail will only tell you if the MTA failed to accept it (i.e. Sendmail was down when you tried to send). It cannot tell you if the mail was successful because it's handed it off. As such (as John Conde's answer details), you now get to fiddle with the logs of the MTA and hope that it tells you enough about the failure to fix it. If you're on a shared host or don't have access to the MTA logs, you're out of luck. Sadly, the default for most vanilla installs for Linux handle it this way.

A mail library (PHPMailer, Zend Framework 2+, etc.), does something very different frommail. They open a socket directly to the receiving mail server and then send the SMTP mail commands directly over that socket. In other words, the class acts as its own MTA (note that you can tell the libraries to usemail to ultimately send the mail, but I would strongly recommend you not do that).

This means you can then directly see the responses from the receiving server (in PHPMailer, for instance, you can turn on debugging output). No more guessing if a mail failed to send or why.

If you're using SMTP (i.e. you're callingisSMTP()), you can get a detailed transcript of the SMTP conversation using theSMTPDebug property.

Set this option by including a line like this in your script:

$mail->SMTPDebug = 2;
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You also get the benefit of a better interface. Withmail you have to set up all your headers, attachments, etc. With a library, you have a dedicated function to do that. It also means the function is doing all the tricky parts (like headers).

Solution:

$name = $_POST['name'];
$email = $_POST['email'];
$reciver = '/* Reciver Email address */';
if (filter_var($reciver, FILTER_VALIDATE_EMAIL)) {
    $subject = $name;
    // To send HTML mail, the Content-type header must be set.
    $headers = 'MIME-Version: 1.0' . "\r\n";
    $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
    $headers .= 'From:' . $email. "\r\n"; // Sender's Email
    //$headers .= 'Cc:' . $email. "\r\n"; // Carbon copy to Sender
    $template = '<div style="padding:50px; color:white;">Hello ,<br/>'
        . '<br/><br/>'
        . 'Name:' .$name.'<br/>'
        . 'Email:' .$email.'<br/>'
        . '<br/>'
        . '</div>';
    $sendmessage = "<div style=\"background-color:#7E7E7E; color:white;\">" . $template . "</div>";
    // Message lines should not exceed 70 characters (PHP rule), so wrap it.
    $sendmessage = wordwrap($sendmessage, 70);
    // Send mail by PHP Mail Function.
    mail($reciver, $subject, $sendmessage, $headers);
    echo "Your Query has been received, We will contact you soon.";
} else {
    echo "<span>* invalid email *</span>";
}
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Solution:

You can use config email by CodeIgniter. For example, using SMTP (simple way):

$config = Array(
        'protocol' => 'smtp',
        'smtp_host' => 'mail.domain.com', // Your SMTP host
        'smtp_port' => 26, // Default port for SMTP
        'smtp_user' => '[email protected]',
        'smtp_pass' => 'password',
        'mailtype' => 'html',
        'charset' => 'iso-8859-1',
        'wordwrap' => TRUE
);
$message = 'Your msg';
$this->load->library('email', $config);
$this->email->from('[email protected]', 'Title');
$this->email->to('[email protected]');
$this->email->subject('Header');
$this->email->message($message);

if($this->email->send()) 
{
   // Conditional true
}
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It works for me!

Solution:

Try this

if ($_POST['submit']) {
    $success= mail($to, $subject, $body, $from);
    if($success)
    { 
        echo '
        <p>Your message has been sent!</p>
        ';
    } else { 
        echo '
        <p>Something went wrong, go back and try again!</p>
        '; 
    }
}
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Solution:

Maybe the problem is the configuration of the mail server. To avoid this type of problems or you do not have to worry about the mail server problem, I recommend you use PHPMailer.

It is a plugin that has everything necessary to send mail, and the only thing you have to take into account is to have the SMTP port (Port: 25 and 465), enabled.

require_once 'PHPMailer/PHPMailer.php';
require_once '/servicios/PHPMailer/SMTP.php';
require_once '/servicios/PHPMailer/Exception.php';

$mail = new \PHPMailer\PHPMailer\PHPMailer(true);
try {
    //Server settings
    $mail->SMTPDebug = 0;
    $mail->isSMTP();
    $mail->Host = 'smtp.gmail.com';
    $mail->SMTPAuth = true;
    $mail->Username = '[email protected]';
    $mail->Password = 'contrasenia';
    $mail->SMTPSecure = 'ssl';
    $mail->Port = 465;

    // Recipients
    $mail->setFrom('[email protected]', 'my name');
    $mail->addAddress('[email protected]');

    // Attachments
    $mail->addAttachment('optional file');         // Add files, is optional

    // Content
    $mail->isHTML(true);// Set email format to HTML
    $mail->Subject = utf8_decode("subject");
    $mail->Body    = utf8_decode("mail content");
    $mail->AltBody = '';
    $mail->send();
}
catch (Exception $e) {
    $error = $mail->ErrorInfo;
}
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Solution:

First of all, you might have too many parameters for the mail() function... You are able to have of maximum of five,mail(to, subject, message, headers, parameters);

As far as the$from variable goes, that should automatically come from your webhost if your using the Linux cPanel. It automatically comes from your cPanel username and IP address.

$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$from = 'From: yoursite.com';
$to = '[email protected]';
$subject = 'Customer Inquiry';
$body = "From: $name\n E-Mail: $email\n Message:\n $message";
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Also make sure you have the correct order of variables in your mail() function.

Themail($to, $subject, $message, etc.) in that order, or else there is a chance of it not working.

Solution:

This will only affect a small handful of users, but I'd like it documented for that small handful. This member of that small handful spent 6 hours troubleshooting a working PHP mail script because of this issue.

If you're going to a university that runs XAMPP from www.AceITLab.com, you should know what our professor didn't tell us: The AceITLab firewall (not the Windows firewall) blocks MercuryMail in XAMPP. You'll have to use an alternative mail client, pear is working for us. You'll have to send to a Gmail account with low security settings.

Yes, I know, this is totally useless for real world email. However, from what I've seen, academic settings and the real world often have precious little in common.

Solution:

Make sure you have Sendmail installed in your server.

If you have checked your code and verified that there is nothing wrong there, go to /var/mail and check whether that folder is empty.

If it is empty, you will need to do a:

sudo apt-get install sendmail
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if you are on an Ubuntu server.

Solution:

For those who do not want to use external mailers and want to mail() on a dedicated Linux server.

The way, how PHP mails, is described inphp.ini in section[mail function].

Parametersendmail-path describes how sendmail is called. The default value issendmail -t -i, so if you get a workingsendmail -t -i < message.txt in the Linux console - you will be done. You could also addmail.log to debug and be sure mail() is really called.

Different MTAs can implementsendmail. They just make a symbolic link to their binaries on that name. For example, in Debian the default is Postfix. Configure your MTA to send mail and test it from the console withsendmail -v -t -i < message.txt. Filemessage.txt should contain all headers of a message and a body, destination address for the envelope will be taken from theTo: header. Example:

From: [email protected]
To: [email protected]
Subject: Test mail via sendmail.

Text body.
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I prefer to use ssmtp as MTA because it is simple and does not require running a daemon with opened ports. ssmtp fits only for sending mail from localhost. It also can send authenticated email via your account on a public mail service. Install ssmtp and edit configuration file/etc/ssmtp/ssmtp.conf. To be able also to receive local system mail to Unix accounts (alerts to root from cron jobs, for example) configure/etc/ssmtp/revaliases file.

Here is my configuration for my account on Yandex mail:

[email protected]
mailhub=smtp.yandex.ru:465
FromLineOverride=YES
UseTLS=YES
[email protected]
AuthPass=password
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Solution:

If you're having trouble sending mails with PHP, consider an alternative like or .

require 'mail/swift_required.php';

$message = Swift_Message::newInstance()
    // The subject of your email
    ->setSubject('Jane Doe sends you a message')
    // The from address(es)
    ->setFrom(array('[email protected]' => 'Jane Doe'))
    // The to address(es)
    ->setTo(array('[email protected]' => 'Frank Stevens'))
    // Here, you put the content of your email
    ->setBody('<h3>New message</h3><p>Here goes the rest of my message</p>', 'text/html');

if (Swift_Mailer::newInstance(Swift_MailTransport::newInstance())->send($message)) {
    echo json_encode([
        "status" => "OK",
        "message" => 'Your message has been sent!'
    ], JSON_PRETTY_PRINT);
} else {
    echo json_encode([
        "status" => "error",
        "message" => 'Oops! Something went wrong!'
    ], JSON_PRETTY_PRINT);
}
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See for more information on how to use SwiftMailer.

Solution:

If you are running this code on a local server (i.e your computer for development purposes) it won't send the email to the recipient. It will create a.txt file in a folder namedmailoutput.

In the case if you are using a free hosing service, like000webhost orhostinger, those service providers disable themail() function to prevent unintended uses of email spoofing, spamming, etc. I prefer you to contact them to see whether they support this feature.

If you are sure that the service provider supports the mail() function, you can check this PHP manual for further reference,

PHP mail()

To check weather your hosting service support the mail() function, try running this code (remember to change the recipient email address):

<?php
    $to      = '[email protected]';
    $subject = 'the subject';
    $message = 'hello';
    $headers = 'From: [email protected]' . "\r\n" .
        'Reply-To: [email protected]' . "\r\n" .
        'X-Mailer: PHP/' . phpversion();

    mail($to, $subject, $message, $headers);
?>
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Solution:

You can use thePHPMailer and it works perfectly,here's a code example:

<?php
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'vendor/phpmailer/phpmailer/src/Exception.php';
require 'vendor/phpmailer/phpmailer/src/PHPMailer.php';
require 'vendor/phpmailer/phpmailer/src/SMTP.php';
$editor = $_POST["editor"];
$subject = $_POST["subject"];
$to = $_POST["to"];

try {

    if ($_SERVER["REQUEST_METHOD"] == "POST") {

        $mail = new PHPMailer();
        $mail->IsSMTP();
        $mail->Mailer = "smtp";
        $mail->SMTPDebug  = 1;
        $mail->SMTPAuth   = TRUE;
        $mail->SMTPSecure = "tls";
        $mail->Port       = 587;
        $mail->Host       = "smtp.gmail.com";//using smtp server
        $mail->Username   = "[email protected]";//the email which will send the email 
        $mail->Password   = "XXXXXXXXXX";//the password

        $mail->IsHTML(true);
        $mail->AddAddress($to, "recipient-name");
        $mail->SetFrom("[email protected]", "from-name");
        $mail->AddReplyTo("[email protected]", "reply-to-name");
        $mail->Subject = $subject;
        $mail->MsgHTML($editor);




        if (!$mail->Send()) {
            echo "Error while sending Email.";
            var_dump($mail);
        } else {
            echo "Email sent successfully";
        }
    }
} catch (Exception $e) {
    echo $e->getMessage();
}
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Solution:

You can see your errors by:

error_reporting(E_ALL);
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And my sample code is:

<?php
    use PHPMailer\PHPMailer\PHPMailer;
    require 'PHPMailer.php';
    require 'SMTP.php';
    require 'Exception.php';

    $name = $_POST['name'];
    $mailid = $_POST['mail'];
    $mail = new PHPMailer;
    $mail->IsSMTP();
    $mail->SMTPDebug = 0;                   // Set mailer to use SMTP
    $mail->Host = 'smtp.gmail.com';         // Specify main and backup server
    $mail->Port = 587;                      // Set the SMTP port
    $mail->SMTPAuth = true;                 // Enable SMTP authentication
    $mail->Username = '[email protected]';  // SMTP username
    $mail->Password = 'password';           // SMTP password
    $mail->SMTPSecure = 'tls';              // Enable encryption, 'ssl' also accepted

    $mail->From = '[email protected]';
    $mail->FromName = 'name';
    $mail->AddAddress($mailid, $name);       // Name is optional
    $mail->IsHTML(true);                     // Set email format to HTML
    $mail->Subject = 'Here is the subject';
    $mail->Body    = 'Here is your message' ;
    $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';
    if (!$mail->Send()) {
       echo 'Message could not be sent.';
       echo 'Mailer Error: ' . $mail->ErrorInfo;
       exit;
    }
    echo 'Message has been sent';
?>
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Solution:

If you're stuck with an app hosted on Hostgator, this is what solved my problem. Thanks a lot to the guy who posted the detailed solution. In case the link goes offline one day, there you have the summary:

• Look for the sendmail path in your server. A simple way to check it, is to temporarily write the following code in a page which only you will access, to read the generated info:<?php phpinfo(); ?>. Open this page, and look forsendmail path. (Then, don't forget to remove this code!)
• Problem and fix: if your sendmail path is saying only-t -i, then edit your server'sphp.ini and add the following line:sendmail_path = /usr/sbin/sendmail -t -i;

But, after being able to send mail with PHPmail() function, I learned that it sends not authenticated email, what created another issue. The emails were all falling in my Hotmail's junk mail box, and some emails were never delivered, which I guess is related to the fact that they are not authenticated. That's why I decided to switch frommail() toPHPMailer with SMTP, after all.

Solution:

<?php

$to       = '[email protected]';
$subject  = 'Write your email subject here.';
$message  = '
<html>
<head>
<title>Title here</title>
</head>
<body>
<p>Message here</p>
</body>
</html>
';

// Carriage return type (RFC).
$eol = "\r\n";

$headers  = "Reply-To: Name <[email protected]>".$eol;
$headers .= "Return-Path: Name <[email protected]>".$eol;
$headers .= "From: Name <[email protected]>".$eol;
$headers .= "Organization: Hostinger".$eol;
$headers .= "MIME-Version: 1.0".$eol;
$headers .= "Content-type: text/html; charset=iso-8859-1".$eol;
$headers .= "X-Priority: 3".$eol;
$headers .= "X-Mailer: PHP".phpversion().$eol;


mail($to, $subject, $message, $headers);
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Sending HTML email While sending an email message you can specify a Mime version, content type and character set to send an HTML email.

Example The above example will send an HTML email message to [email protected]. You can code this program in such a way that it should receive all content from the user and then it should send an email.

Solution:

I had this problem and found that stripping back the headers helped me to get mail out. So this:

$headers  = "MIME-Version: 1.0;\r\n";
$headers .= "Content-type: text/plain; charset=utf-8;\r\n";
$headers .= "To: ".$recipient."\r\n";
$headers .= "From: ".__SITE_TITLE."\r\n";
$headers .= "Reply-To: ".$sender."\r\n";
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became this:

$headers = "From: ".__SITE_TITLE."\r\n";
$headers .= "Reply-To: ".$sender."\r\n";
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No need for the To: header.

Mail clients are pretty good at sniffing out URLs and rewriting them as a hyperlink. So I didn't bother writing HTML and specifying text/html in the content-type header. I just threw new lines with \r\n in the message body. I appreciate this isn't the coding purist's approach but it works for what I need it for.

Solution:

In my case, the email was well sent but to received because the whole message was in one line of over 998 caracters. I needed to make the lines of maximum length 70 with the following line:wordwrap($email_message, 70, "\r\n");.

https://www.rfc-editor.org/rfc/rfc5322#section-2.1.1

There are two limits that this specification places on the number of characters in a line. Each line of characters MUST be no more than 998 characters, and SHOULD be no more than 78 characters, excluding the CRLF.

Solution:

There are several possibilities:

1. You're facing a server problem. The server does not have any mail server. So your mail is not working, because your code is fine and mail is working with type.

2. You are not getting the posted value. Try your code with a static value.

3. Use SMTP mails to send mail...

Solution:

It may be a problem with "From:" $email address in this part of the $headers:

From: \"$name\" <$email>
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To try it out, send an email without the headers part, like:

mail('[email protected]', $subject, $message); 
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If that is a case, try using an email account that is already created at the system you are trying to send mail from.