Redmine

Hello all

I installed the latest version 2.6.0. A week ago, has worked all right. But now notices aren't sent.

I try sent test email from settings panel: "An email was sent to myname@gmail.com"

usr/share/redmine/log/production.log:
Started GET "/admin/test_email" for 178.125.13.96 at 2014-12-21 22:39:43 +0000
Processing by AdminController#test_email as HTML
Current user: admin (id=8)
Rendered mailer/test_email.text.erb within layouts/mailer (0.1ms)
Rendered mailer/test_email.html.erb within layouts/mailer (0.1ms)
Redirected to http://redmine.mydomain.com/settings?tab=notifications
Completed 302 Found in 1107.6ms (ActiveRecord: 0.3ms)
Started GET "/settings?tab=notifications" for 178.125.13.96 at 2014-12-21 22:39:45 +0000
Processing by SettingsController#index as HTML
Parameters: {"tab"=>"notifications"}
Current user: admin (id=8)
Rendered settings/_general.html.erb (5.1ms)
Rendered settings/_display.html.erb (5.4ms)
Rendered settings/_authentication.html.erb (4.4ms)
Rendered settings/_projects.html.erb (6.4ms)
Rendered queries/_columns.html.erb (3.6ms)
Rendered settings/_issues.html.erb (8.0ms)
Rendered settings/_notifications.html.erb (29.0ms)
Rendered settings/_mail_handler.html.erb (1.5ms)
Rendered settings/_repositories.html.erb (8.7ms)
Rendered common/_tabs.html.erb (73.1ms)
Rendered settings/edit.html.erb within layouts/admin (73.6ms)
Rendered admin/_menu.html.erb (3.7ms)
Rendered layouts/base.html.erb (32.7ms)
Completed 200 OK in 115.1ms (Views: 110.1ms | ActiveRecord: 1.3ms)

../config/configuration.yml:
production:
email_delivery:
delivery_method: :smtp
smtp_settings:
enable_starttls_auto: true
address: "smtp.gmail.com"
port: 587
domain: "mydomain.com"
authentication: :plain
user_name: "support@mydomaincom"
password: "MyPass"


What settings should I check?