Hi all,

I've just released RhizMail 0.1.0.

http://rhizmail.rubyforge.org/

== WHAT'S RHIZMAIL? ==
RhizMail is a test-friendly library for sending out customized emails. 
This is the library we use day-to-day at rhizome.org, where we send out 
more than 100 customized emails a day.

To use RhizMail, create an email and deliver it.

   def send_site_message( to_address, to_name, body )
     msg = RhizMail::Message.new(
       'New features at website.com', to_address, 'webmaster / mysite.com',
       body
     )
     msg.to_name = to_name
     msg.deliver
   end

If you want to test this message, you can set the MockMailer to take 
place of the default Mailer:

   def test_send_site_message
     mock_mailer = RhizMail::MockMailer.new
     RhizMail::set_mailer mock_mailer
     send_site_message( 'bill / yahoo.com', 'Bill Smith', 'Hi, Bill!' )
     assert_equal( 1, mock_mailer.messages_sent )
     assert_equal( 'Bill Smith', mock_mailer.messages_sent.first.to_name 
)
   end

Basically, this means that you can send out as many emails as you want 
in any part of your code, without having to worry that running a test 
case will actually send out real emails. (Is there somebody who really 
has the email address with 'bill / yahoo.com'? If so, it'd be nice not to 
annoy him.)

Francis Hwang
http://fhwang.net/