Redmine

Hi Guys,

I am new to redmine and trying to to iron out some quirks I am seeing. Hopefully it's something trivial that I am missing.

I installed the Bitnami Redmine Stack (has Redmine 1.1.3). Made sure that email.yml has the correct settings.
If I go to Admin->Settings->Email Notifications and click "Send a test email", everything works great. However, if I try to create users with "send account information to the user" checked or later try to send notification emails to users, I get the following error in the production log (instead of someone@email.com I have a correct email in the log):

Processing UsersController#create (for 127.0.0.1 at 2011-05-31 11:37:28) [POST]
Parameters: {"send_information"=>"1", "commit"=>"Create", "action"=>"create", "authenticity_token"=>"uzWSNYXzopBWwXKLHyuJE58fJJi9gsUKl7/5OvvGIe0=", "pref"=>{"hide_mail"=>"0", "comments_sorting"=>"asc", "time_zone"=>"Eastern Time (US & Canada)"}, "controller"=>"users", "user"=>{"password_confirmation"=>"[FILTERED]", "admin"=>"0", "language"=>"en", "mail"=>"apivoshenko@netzero.com", "lastname"=>"Netzero", "firstname"=>"Alex", "mail_notification"=>"only_my_events", "password"=>"[FILTERED]", "login"=>"alexn"}}
Sending email notification to: someone@email.com
The following error occured while sending email notification: "550 Invalid recipient
". Check your configuration in config/email.yml.
Redirected to http://localhost:79/redmine/users/5/edit
Completed in 261ms (DB: 8) | 302 Found [http://localhost/redmine/users]

All the users have "only things I watch or I'm involved in" as an email notification option.
Surely if this did not work out of the box, someone already noticed :-) What am I missing?

Thanks!
- Alex