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Sending email in CodeIgniter is much easier. You also configure the preferences regarding email in CodeIgniter. CodeIgniter provides following features for sending emails −

• Multiple Protocols − Mail, Sendmail, and SMTP
• TLS and SSL Encryption for SMTP
• Multiple recipients
• CC and BCCs
• HTML or Plaintext email
• Attachments
• Word wrapping
• Priorities
• BCC Batch Mode, enabling large email lists to be broken into small BCC batches.
• Email Debugging tools

Email class has the following functions to simplify the job of sending emails.

S.N.	Syntax	Parameters	Return	Return Type
1	from($from[,$name = ''[,$return_path = NULL]])	$from(string) − “From” e-mail address $name(string) − “From” display name $return_path(string) − Optional email address to redirect undelivered e-mail to	CI_Email instance (method chaining)	CI_Email
2	reply_to($replyto[,$name = ''])	$replyto(string) − E-mail address for replies $name(string) − Display name for the reply-to e-mail address	CI_Email instance (method chaining)	CI_Email
2	to($to)	$to(mixed) − Comma-delimited string or an array of e-mail addresses	CI_Email instance (method chaining)	CI_Email
3	cc($cc)	$cc(mixed) − Comma-delimited string or an array of e-mail addresses	CI_Email instance (method chaining)	CI_Email
4	bcc($bcc[,$limit = ''])	$bcc(mixed) − Comma-delimited string or an array of e-mail addresses $limit(int) − Maximum number of e-mails to send per batch	CI_Email instance (method chaining)	CI_Email
5	subject($subject)	$subject(string) − E-mail subject line	CI_Email instance (method chaining)	CI_Email
6	message($body)	$body(string) − E-mail message body	CI_Email instance (method chaining)	CI_Email
7	set_alt_message($str)	$str(string) − Alternative e-mail message body	CI_Email instance (method chaining)	CI_Email
8	set_header($header, $value)	$header(string) − Header name $value(string) − Header value	CI_Email instance (method chaining)	CI_Email
9	clear([$clear_attachments = FALSE])	$clear_attachments(bool) – Whether or not to clear attachments	CI_Email instance (method chaining)	CI_Email
10	send([$auto_clear = TRUE])	$auto_clear(bool) − Whether to clear message data automatically	CI_Email instance (method chaining)	CI_Email
11	attach($filename[, $disposition = ''[, $newname = NULL[, $mime = '']]])	$filename(string) − File name $disposition(string) − ‘disposition’ of the attachment. Most email clients make their own decision regardless of the MIME specification used here.iana $newname(string) − Custom file name to use in the e-mail $mime(string) − MIME type to use (useful for buffered data)	CI_Email instance (method chaining)	CI_Email
12	attachment_cid($filename)	$filename(string) − Existing attachment filename	Attachment Content-ID or FALSE if not found	string

Sending an Email

To send an email using CodeIgniter, first you have to load email library using the following −

$this->load->library('email');

After loading the library, simply execute the following functions to set necessary elements to send an email. Thefrom()function is used to set − from where the email is being sent andto()function is used − to whom the email is being sent. Thesubject()andmessage()function is used to set the subject and message of the email.

$this->email->from('your@example.com', 'Your Name');
$this->email->to('someone@example.com');
 
$this->email->subject('Email Test');
$this->email->message('Testing the email class.');

After that, execute thesend()function as shown below to send an email.

$this->email->send();

Example

Create a controller fileEmail_controller.phpand save it inapplication/controller/Email_controller.php.

<?php 
   class Email_controller extends CI_Controller { 
 
      function __construct() { 
         parent::__construct(); 
         $this->load->library('session'); 
         $this->load->helper('form'); 
      } 
		
      public function index() { 
	
         $this->load->helper('form'); 
         $this->load->view('email_form'); 
      } 
  
      public function send_mail() { 
         $from_email = "your@example.com"; 
         $to_email = $this->input->post('email'); 
   
         //Load email library 
         $this->load->library('email'); 
   
         $this->email->from($from_email, 'Your Name'); 
         $this->email->to($to_email);
         $this->email->subject('Email Test'); 
         $this->email->message('Testing the email class.'); 
   
         //Send mail 
         if($this->email->send()) 
         $this->session->set_flashdata("email_sent","Email sent successfully."); 
         else 
         $this->session->set_flashdata("email_sent","Error in sending Email."); 
         $this->load->view('email_form'); 
      } 
   } 
?>

Create a view file calledemail_form.phpand save it atapplication/views/email_form.php

<!DOCTYPE html> 
<html lang = "en"> 

   <head> 
      <meta charset = "utf-8"> 
      <title>CodeIgniter Email Example</title> 
   </head>
	
   <body> 
      <?php 
         echo $this->session->flashdata('email_sent'); 
         echo form_open('/Email_controller/send_mail'); 
      ?> 
		
      <input type = "email" name = "email" required /> 
      <input type = "submit" value = "SEND MAIL"> 
		
      <?php 
         echo form_close(); 
      ?> 
   </body>
	
</html>

Make the changes in theroutes.phpfile inapplication/config/routes.phpand add the following line at the end of the file.

$route['email'] = 'Email_Controller';

Execute the above example by visiting the following link. Replace the yoursite.com with the URL of your site.

http://yoursite.com/index.php/email