Description

Notifier with email transport by default uses the global sender and recipient set in mailer.{yml,php}.

The globally set sender overrides any sender set in code (https://symfony.com/doc/current/reference/configuration/framework.html#sender) and the envelope is set on mailer node making it default for all transports, this makes notifier's email channel unusable with multiple transports.

Example

TLDR; Sending notifications via email should be as simple as possible

This should just work.

$this->notifier->send(
    new Notification('some important message', ['email/operations', 'email/security'])
);