ruby gem mail メール送信

#gem install mail
require 'rubygems'
require 'mail'

smtp_settings = { 
  :address => "XXXXXXXX.com.root.local",
  :port => 25,
}

Mail.defaults do
  delivery_method :smtp, smtp_settings
end

mail = Mail.new
mail.charset = 'ISO-2022-JP'
mail.from = "foo@example.com"
mail.to = 'aaa@hoge.com'
mail.subject = 'aaa'
mail.body = 'aaa'

mail.deliver