SlimでHTMLメールを送る

HTMLメールをrubyで送るのにslimテンプレートエンジンを使いたくて。

require 'mail'
require 'slim'

mail = Mail.new do
  from = 'foo@example.net'
  to = 'bar@example.net'
  subject = 'html mail'
end

@name1 = 'Sherlock Holmes'
@name2 = 'John Watson'
mail.html_part = Slim::Template.new('template.slim').render(self)

puts mail.to_s

template.slim

p =@name1 + ' is a private detective'
p =@name2 + ' is his assistant'