Drupal SMTP Authentication with PEAR::Mail

If you want to use smtp authentication with Drupal you can use PEAR::Mail with drupal_mail_wrapper.

1. Install PEAR::Mail. On linux you can just run the following command as root:
   

    pear install --alldeps Mail

   
   


2. Create a new file, say includes/smtpmail/smtpmail.inc and paste the following code into it:
   

   
   <?php
   require_once 'Mail.php';
   require_once 'PEAR.php';
   
   function drupal_mail_wrapper($mailkey, $to, $subject, $body, $from, $headers) {
     global $smtpmail;
   
     $headers['From']    = $from;
     if ( empty($headers['To'])) {
       $headers['To'] = $to;
     }
     $headers['Subject'] = $subject;
   
     $recipients = $to;
     $mail_object =&Mail::factory('smtp', $smtpmail);
     $output = $mail_object->send($recipients, $headers, $body);
     return $output;
   }
   

   
   


3. Edit your settings.php and add the following at the end:
   

   
   $conf = array(
     'smtp_library' => 'includes/smtpmail/smtpmail.inc'
   );
   global $smtpmail;
   $smtpmail= array();
   $smtpmail["host"]  = 'your.mail.host';
   $smtpmail["auth"] = TRUE;
   $smtpmail["username"] = 'your_user_name';
   $smtpmail["password"] = 'your_password';
   

   
   

From now on every call to drupal_mail will go through your drupal_mail_wrapper and will be sent using PEAR::Mail with SMPT authentication.

I'm sure some more serious drupaler would have made this a nice module, with configuration screens and the lot, but I'm too lazy today.

phpize: command not found

If you ever get phpize: command not found error when trying to install a PEAR package on a linux system, this is probably becuase the php-devel package is not installed.

PHP Allowed memory size of 8388608 bytes exhausted

If you try to install PHP PECL package and get an "Allowed memory size of 8388608 bytes exhausted" you should know that pecl ignores php.ini memory_limit directive. As suggested in
this post, you should use pear instead of pecl to install you package. For example, instead of doing

[root@hostname tmp]# pecl -v install APC

you should do

[root@hostname tmp]# pecl -v download APC
[root@hostname tmp]# pear -v install APC-3.0.15.tgz