= Vert.x Mail service (SMTP client implementation)

Vert.x service for sending SMTP emails via the vert.x event bus by
a mail service running on another machine on the local network.

== MailService

The MailService interface supports sending mails through another server running
on the local network by the event bus.

=== Service client

The service client only needs the name of the service address as parameter, the
default is "vertx.mail".

[source,ruby]
----
require 'vertx-mail/mail_service'
mailService = VertxMail::MailService.create_event_bus_proxy(vertx, "vertx.mail")

----

The behaviour of MailClient and MailService is the same, if you like you can use the
MailClient interface to store the MailService instance.

A more complete example for sending a mail via the event bus is this:

[source,ruby]
----
require 'vertx-mail/mail_service'
mailService = VertxMail::MailService.create_event_bus_proxy(vertx, "vertx.mail")

email = {
  'from' => "user@example.com",
  'bounceAddress' => "bounce@example.com",
  'to' => "user@example.com"
}

mailService.send_mail(email) { |result_err,result|
  puts "mail finished"
  if (result_err == nil)
    puts result
  else
    puts "got exception"
    result_err.print_stack_trace()
  end
}

----

== Service listener

To run the service listener that sends the mails, you need to start it separately
e.g. with the vertx command

[source,shell]
----
vertx run service:io.vertx.mail-service
----
or deploy the verticle inside your program.

If you have a smtp server running on the machine on port 25, you can use the default config.