The email channel allows sending emails to recipients.

After installing and configuring either Symfony Mailer Lite or Symfony Mailer, install the Notifer Email Channel project.

Installation and configuration

Symfony Mailer Lite

Start by installing the Symfony Mailer Lite project, then configure it until emails can be sent via the test interface.

composer require drupal/symfony_mailer_lite
drush module:enable symfony_mailer_lite

Messenger works with Symfony Mailer Lite. Ensure messenger is actively processing messages, otherwise your email notifications will get stuck unsent.

Symfony Mailer

Alternatively, the Symfony Mailer (non-Lite version) may be used by installing the Symfony Mailer project, then configure it until emails can be sent via the test interface.

composer require "drupal/symfony_mailer:^2@alpha"
drush module:enable symfony_mailer

INFO

The Symfony Mailer project must be version 2.0.0@alpha1 or greater, as it includes the Mailer Transports implementation required by Notifier.

WARNING

Messenger integration does not currently work with Symfony Mailer (non-lite) project. Track progress in the issue queue at Add Symfony Messenger support for async messsages (emails as queues). Emails will be sent, but will bypass Messenger. When support for Messenger is added to Symfony Mailer, messages will automatically route into Messenger. If you require certainty, use Symfony Mailer Lite instead.

The email channel

The Notifier email channel can then be added by installing the Notifer Email Channel project. No configuration or requirements is necessary, other than a working Symfony Mailer setup.

composer require drupal/notifier_email_channel
drush module:enable notifier_email_channel