I\'m currently working on a Symfony 4 application and I need to send emails throught Swift Mailer. When I send an email, I receive the email spooled but I don\'t get it in m
MAILER_URL must be url encoded. Check out the documentation at: https://symfony.com/doc/current/email.html#configuration
If your password had some special characters in it, that needed to be url encoded, it won't work.
Hope it helps.