play-mailer-configure.adoc

Configure mailer instance

Runtime Dependency Injection

By default the plugin automatically configure the injected instances with the application.conf file:

class MyComponent @Inject() (mailer: MailerClient) {
  // ...
}

If you want to configure the injected instances from another source, you will need to override the default provider:

1. Create a custom configuration provider:

   CustomSMTPConfigurationProvider.scala

   class CustomSMTPConfigurationProvider extends Provider[SMTPConfiguration] {
     override def get() {
       // Custom configuration
       new SMTPConfiguration("typesafe.org", 1234)
     }
   }
   
   class CustomMailerConfigurationModule extends Module {
     def bindings(environment: Environment, configuration: Configuration) = Seq(
       bind[SMTPConfiguration].toProvider[CustomSMTPConfigurationProvider]
     )
   }

2. Override the default provider in the application.conf file:

   application.conf

   play {
     modules {
       # Disable the default provider
       disabled += "play.api.libs.mailer.SMTPConfigurationModule"
       # Enable the custom provider (see above)
       enabled += "controllers.CustomMailerConfigurationModule"
     }
   }

New instances

You can also use the SMTPMailer constructor to create new instances with custom configuration:

val email = Email("Simple email", "Mister FROM <[email protected]>")
new SMTPMailer(SMTPConfiguration("typesafe.org", 1234)).send(email)
new SMTPMailer(SMTPConfiguration("playframework.com", 5678)).send(email)