$emailTextHtml='<h1>email sent from php use by phpmailer</h1>';

require 'PHPMailer/PHPMailerAutoload.php';
$mail = new PHPMailer(true);                          // Passing `true` enables exceptions
try {
    //Server settings
    //$mail->SMTPDebug = 2;                                 // Enable verbose debug output
    $mail->isSMTP();                                      // Set mailer to use SMTP
    $mail->Host = 'smtp.gmail.com';  // Specify main and backup SMTP servers
    $mail->SMTPAuth = true;                               // Enable SMTP authentication
    $mail->Username = 'demo@gmail.com';                 // SMTP username of gmail
    $mail->Password = '2345678';                           // SMTP password of gmail
    $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
    $mail->Port = 587;                                    // TCP port to connect to

    //Recipients
    $mail->setFrom('anupam@gmail.com', 'study'); // provide your gmail username 
    $mail->addAddress('komal@gmail.com', 'study');     // Add a recipient
    $mail->addReplyTo('anupamverma@gmail.com', 'Information');

    //Content
    $mail->isHTML(true);                          // Set email format to HTML
     $mail->Subject = 'Register client details and total client details';
     $mail->Body= "$emailTextHtml";    //write the html code
    $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

    $mail->send();
    echo 'Message has been sent';
} catch (Exception $e) {
    echo 'Message could not be sent. Mailer Error: ', $mail->ErrorInfo;
}
     

    
    

原生PHP函数mail()不适合我。它发出消息:

此邮件服务器在试图发送时需要身份验证 到非本地电子邮件地址

所以，我通常使用PHPMailer包

我已经从GitHub下载了5.2.23版本。

我只选择了2个文件，并将它们放在我的源代码PHP根目录中

class.phpmailer.php class.smtp.php

在PHP中，需要添加该文件

require_once('class.smtp.php');
require_once('class.phpmailer.php');

在此之后，它只是代码:

require_once('class.smtp.php');
require_once('class.phpmailer.php');
... 
//----------------------------------------------
// Send an e-mail. Returns true if successful 
//
//   $to - destination
//   $nameto - destination name
//   $subject - e-mail subject
//   $message - HTML e-mail body
//   altmess - text alternative for HTML.
//----------------------------------------------
function sendmail($to,$nameto,$subject,$message,$altmess)  {

  $from  = "yourcontact@yourdomain.com";
  $namefrom = "yourname";
  $mail = new PHPMailer();  
  $mail->CharSet = 'UTF-8';
  $mail->isSMTP();   // by SMTP
  $mail->SMTPAuth   = true;   // user and password
  $mail->Host       = "localhost";
  $mail->Port       = 25;
  $mail->Username   = $from;  
  $mail->Password   = "yourpassword";
  $mail->SMTPSecure = "";    // options: 'ssl', 'tls' , ''  
  $mail->setFrom($from,$namefrom);   // From (origin)
  $mail->addCC($from,$namefrom);      // There is also addBCC
  $mail->Subject  = $subject;
  $mail->AltBody  = $altmess;
  $mail->Body = $message;
  $mail->isHTML();   // Set HTML type
//$mail->addAttachment("attachment");  
  $mail->addAddress($to, $nameto);
  return $mail->send();
}

这招很管用

我在cPanel中使用了这个方法，一切工作正常:

<?php 
  $dest = "destination@domain.tld"; 
  $fromaddy = "cpaneluser@domain.tld"; 
  mail("<$dest>","Test from php mail","Test","From:<$fromaddy>","-f$fromaddy"); 
?> 

   $emailTextHtml='<h1>email sent from php use by phpmailer</h1>';

require 'PHPMailer/PHPMailerAutoload.php';
$mail = new PHPMailer(true);                          // Passing `true` enables exceptions
try {
    //Server settings
    //$mail->SMTPDebug = 2;                                 // Enable verbose debug output
    $mail->isSMTP();                                      // Set mailer to use SMTP
    $mail->Host = 'smtp.gmail.com';  // Specify main and backup SMTP servers
    $mail->SMTPAuth = true;                               // Enable SMTP authentication
    $mail->Username = 'demo@gmail.com';                 // SMTP username of gmail
    $mail->Password = '2345678';                           // SMTP password of gmail
    $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
    $mail->Port = 587;                                    // TCP port to connect to

    //Recipients
    $mail->setFrom('anupam@gmail.com', 'study'); // provide your gmail username 
    $mail->addAddress('komal@gmail.com', 'study');     // Add a recipient
    $mail->addReplyTo('anupamverma@gmail.com', 'Information');

    //Content
    $mail->isHTML(true);                          // Set email format to HTML
     $mail->Subject = 'Register client details and total client details';
     $mail->Body= "$emailTextHtml";    //write the html code
    $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

    $mail->send();
    echo 'Message has been sent';
} catch (Exception $e) {
    echo 'Message could not be sent. Mailer Error: ', $mail->ErrorInfo;
}
     

    
    

从PHP发送电子邮件的核心方法是使用其内置的mail()函数，但有几个现成的sdk可以简化集成:

Swiftmailer PHPMailer peppost(通过HTTP工作，因此可以避免SMTP端口阻塞问题) Sendmail

附注:我受雇于peppost公司。

你可以使用诸如邮戳、Sendgrid等邮件网络服务。

Sendgrid vs邮戳vs亚马逊SES和其他电子邮件/SMTP API提供商?

编辑:我现在只使用谷歌Gmail API。由于严格的过滤器，我在向雇主发送提醒邮件时遇到了麻烦。但只要你不发垃圾邮件，Gmail就可以工作。