Send Email in CodeIgniter 4 With SMTP

In this Codeigniter tutorial, we would love to share with you how to send email from localhost to server in Codeigniter 4.

Sending emails in CodeIgniter to multiple recipients, sending HTML emails and using SMTP is very easy because of the new functionality. Now the stable version of the framework is available to download from the official website.

They have introduced the services classes to use the Codeigniter 4 services like email; you just call the services in Codeigniter by using below code.

Create a mail id and their password using Cpanel, and set email and password here.

ConfigServices::serviceName();
// i.e  ConfigServices::email();

In this segment, you should know how to use it; you can send the email from your website/localhost to the user/client using Codeigniter 4, so before using the email library, you need to see the library setting in Codeigniter 4.

Step 1: Go to the app/config/Email.php and open the file

Step 2: Update the Email Credentials

<?php
namespace Config;
 
use CodeIgniter\Config\BaseConfig;
 
class Email extends BaseConfig
{
 
  /**
   * @var string
   */
  public $fromEmail;
 
  /**
   * @var string
   */
  public $fromName;
 
  /**
   * @var string
   */
  public $recipients;
 
  /**
   * The "user agent"
   *
   * @var string
   */
  public $userAgent = 'CodeIgniter';
 
  /**
   * The mail sending protocol: mail, sendmail, smtp
   *
   * @var string
   */
  public $protocol = 'smtp';
 
  /**
   * The server path to Sendmail.
   *
   * @var string
   */
  public $mailPath = '/usr/sbin/sendmail';
 
  /**
   * SMTP Server Address
   *
   * @var string
   */
  public $SMTPHost='mail.tutorialsart.com';
 
  /**
   * SMTP Username
   *
   * @var string
   */
  public $SMTPUser = 'abcd@tutorialsart.com';
 
  /**
   * SMTP Password
   *
   * @var string
   */
  public $SMTPPass = 'YourPasswordHere$';
 
  /**
   * SMTP Port
   *
   * @var integer
   */
  public $SMTPPort = 587;
 
  /**
   * SMTP Timeout (in seconds)
   *
   * @var integer
   */
  public $SMTPTimeout = 15;
 
  /**
   * Enable persistent SMTP connections
   *
   * @var boolean
   */
  public $SMTPKeepAlive = false;
 
  /**
   * SMTP Encryption. Either tls or ssl
   *
   * @var string
   */
  public $SMTPCrypto = 'tls';
 
  /**
   * Enable word-wrap
   *
   * @var boolean
   */
  public $wordWrap = true;
 
  /**
   * Character count to wrap at
   *
   * @var integer
   */
  public $wrapChars = 76;
 
  /**
   * Type of mail, either 'text' or 'html'
   *
   * @var string
   */
  public $mailType = 'html';
 
  /**
   * Character set (utf-8, iso-8859-1, etc.)
   *
   * @var string
   */
  public $charset = 'UTF-8';
 
  /**
   * Whether to validate the email address
   *
   * @var boolean
   */
  public $validate = false;
 
  /**
   * Email Priority. 1 = highest. 5 = lowest. 3 = normal
   *
   * @var integer
   */
  public $priority = 3;
 
  /**
   * Newline character. (Use “\r\n” to comply with RFC 822)
   *
   * @var string
   */
  public $CRLF = "\r\n";
 
  /**
   * Newline character. (Use “\r\n” to comply with RFC 822)
   *
   * @var string
   */
  public $newline = "\r\n";
 
  /**
   * Enable BCC Batch Mode.
   *
   * @var boolean
   */
  public $BCCBatchMode = false;
 
  /**
   * Number of emails in each BCC batch
   *
   * @var integer
   */
  public $BCCBatchSize = 200;
 
  /**
   * Enable notify message from server
   *
   * @var boolean
   */
  public $DSN = false;
 
}

Step 3: Now go to your controller/method and just use/call the library/class

public function yourMethod(){
   $message = "Please activate the account ".anchor('user/activate/'.$data['u_link'],'Activate Now','');
   $email = \Config\Services::email();
   $email->setFrom('ci-4-project@tutorialsart.com', 'your Title Here');
   $email->setTo($data['u_email']);
   $email->setSubject('Your Subject here | tutsmake.com');
   $email->setMessage($message);//your message here

   $email->setCC('another@emailHere');//CC
   $email->setBCC('thirdEmail@emialHere');// and BCC
   $filename = '/img/yourPhoto.jpg'; //you can use the App patch 
   $email->attach($filename);
   
   $email->send();
   $email->printDebugger(['headers']);
}

Note that:- If you are sending a mail using Gmail you have to allow non-secure apps to access Gmail you can do this by going to your Gmail settings here.

Once less secure apps are enabled; now you can use your Gmail for sending the emails.

Step 3: Now go to your controller/method and just use/call the library/class

Note that:- If you are sending a mail using Gmail you have to allow non-secure apps to access Gmail you can do this by going to your Gmail settings here.

Once less secure apps are enabled; now you can use your Gmail for sending the emails.