I'm using two swiftmailer services, one as a spool and one for instant mails, as described here How to define an additional mailer service to use the spool and send instant emails in Symfony2
But now my settings in config_dev.yml
swiftmailer:
delivery_address: test@test.com
only work for the service using spool.
Update:
So I looked around on github and found this, it should be possible but I don't understand how I have to configure my service.