Queue, preview and and send emails stored in the database

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4.0.0 2020-04-14 10:59 UTC

This package is auto-updated.

Last update: 2021-10-14 14:02:03 UTC


This plugin provides an interface for creating emails on the fly and store them in a queue to be processed later by an offline worker using a cakephp shell command.

It also contains a handy shell for previewing queued emails, a very handy tool for modifying email templates and watching the result.


  • CakePHP 4.x


composer require lorenzo/cakephp-email-queue

The plugin uses Debug email transport, so make sure your email config contain it:

'EmailTransport' => [
        'Debug' => [
            'className' => 'Debug'

Enable plugin

bin/cake plugin load EmailQueue

Load required database table

In order to use this plugin, you need to create a database table. Required SQL is located at

# config/Schema/email_queue.sql

Just load it into your database. You are free to change the file to use an integer primary key instead of UUIDs.

Or run migrations command:

bin/cake migrations migrate --plugin EmailQueue


Whenever you need to send an email, use the EmailQueue model to create and queue a new one by storing the correct data:

use EmailQueue\EmailQueue;
EmailQueue::enqueue($to, $data, $options);

enqueue method receives 3 arguments:

  • First argument is a string or array of email addresses that will be treated as recipients.
  • Second arguments is an array of view variables to be passed to the email template
  • Third arguments is an array of options, possible options are
  • subject: Email's subject
  • send_at: date time sting representing the time this email should be sent at (in UTC)
  • template: the name of the element to use as template for the email message. (maximum supported length is 100 chars)
  • layout: the name of the layout to be used to wrap email message
  • format: Type of template to use (html, text or both)
  • headers: A key-value list of headers to send in the email
  • theme: The View Theme to find the email templates
  • config: the name of the email config to be used for sending
  • from_name: String with from name. Must be supplied together with from_email.
  • from_email: String with from email. Must be supplied together with from_name.

Previewing emails

It is possible to preview emails that are still in the queue, this is very handy during development to check if the rendered email looks at it should; no need to queue the email again, just make the changes to the template and run the preview again:

# bin/cake EmailQueue.preview

Sending emails

Emails should be sent using bundled Sender command, use -h modifier to read available options

# bin/cake EmailQueue.sender -h

You can configure this command to be run under a cron or any other tool you wish to use.


Run the tests

./vendor/bin/phpunit tests/

Check style

./vendor/bin/phpcs ./src ./tests/ --standard=vendor/cakephp/cakephp-codesniffer/CakePHP