parameters:
    mailer_transport:  smtp
    mailer_host:       smtp.mydomain.com
    mailer_user:       myemail@mydomain.com
    mailer_password:   mypassword

swiftmailer:
    auth_mode:  login
    port:       587
    encryption: ssl

swiftmailer:
    transport: "%mailer_transport%"
    host:      "%mailer_host%"
    username:  "%mailer_user%"
    password:  "%mailer_password%"
    spool:     { type: memory }