Interesting question appeared today at wtr-general mailing list.
my application has sent an email to outlook. i want watir to open outlook, open the mail and get the mail data like from text and so on.
I also have to test my application to see if it sends correct e-mails. So I knew the answer.
You do not have to open Outlook to see your mail. You can read you e-mail from ruby.
Net::POP3 and Net::SMTP are included in Ruby. TMail needs installation. I had a problem with TMail installation, and I contacted author. He recommended this procedure, and now it works.
ruby setup.rb config --without-ext
ruby setup.rb setup
ruby setup.rb install