Redmine

When I create config/email.yml and add my SMTP settings, my Redmine instance suddenly becomes unresponsive. Rebooting the machine appears to solve the problem, but I'd like to know why this happens.

Here's my email.yml file:

production:
  delivery_method: :smtp
  smtp_settings:
    tls: true
    enable_starttls_auto: true
    address: "smtp.googlemail.com" 
    port: 587
    domain: "smtp.gmail.com" 
    authentication: :plain
    user_name: "me@domain.com" 
    password: "XXXX" 

I'm using the most recent Bitnami Redmine Stack. I've documented my setup here: http://www.morninj.com/2012/01/deploy-redmine-in-five-minutes-on-amazon-ec2/

Thanks for any help.