Redmine

I've just recently upgraded my redmine from v1.0.1 to v2.1.2. I've followed the guide on http://www.redmine.org/projects/redmine/wiki/RedmineUpgrade and the upgrade is rather smooth.

I'm facing a problem where I'm not receiving any emails from the redmine server via sendmail. I tried sending an email manually via sendmail and it works so I doubt the OS has a problem

I'm using debian 6

This is the email config from config/configuration.yml:

#
production:
email_delivery:
delivery_method: :sendmail

Below is the snippet of the production.log:

Started PUT "/issues/636" for 210.195.222.102 at Sat Nov 10 10:18:53 +0000 2012
Processing by IssuesController#update as HTML
Parameters: {"time_entry"=>{"comments"=>"", "activity_id"=>"", "hours"=>""}, "commit"=>"Submit", "last_journal_id"=>"", "notes"=>"no longer needed", "authenticity_token"=>"loXMm+krjxI7f8DzWhT6RqfL1RI5mPXNSENu2egGaIA=", "utf8"=>"✓", "id"=>"636", "issue"=>{"start_date"=>"2012-11-10 00:00:00", "estimated_hours"=>"", "priority_id"=>"4", "parent_issue_id"=>"", "is_private"=>"0", "project_id"=>"9", "fixed_version_id"=>"", "lock_version"=>"0", "subject"=>"business meeting in sg with quest venture", "assigned_to_id"=>"23", "done_ratio"=>"0", "tracker_id"=>"2", "due_date"=>"", "description"=>"time tracking purpose", "status_id"=>"5"}, "attachments"=>{"1"=>{"description"=>""}}}
Current user: choonming (id=23)
Rendered mailer/_issue.text.erb (2.0ms)
Rendered mailer/issue_edit.text.erb within layouts/mailer (4.5ms)
Rendered mailer/_issue.html.erb (0.9ms)
Rendered mailer/issue_edit.html.erb within layouts/mailer (2.9ms)
Redirected to http://service.olindata.com/issues/636
Completed 302 Found in 734ms (ActiveRecord: 27.3ms)

Gem list:

actionmailer (3.2.8, 3.2.6, 2.3.14, 2.3.5)
actionpack (3.2.8, 3.2.6, 2.3.14, 2.3.5)
activemodel (3.2.8, 3.2.6)
activerecord (3.2.8, 3.2.6, 2.3.14, 2.3.5)
activeresource (3.2.8, 3.2.6, 2.3.14, 2.3.5)
activesupport (3.2.8, 3.2.6, 2.3.14, 2.3.5)
arel (3.0.2)
builder (3.1.4, 3.0.0)
bundler (1.2.1, 1.1.4)
coderay (1.0.8)
edavis10-object_daddy (0.4.3)
erubis (2.7.0)
fastercsv (1.5.5)
hike (1.2.1)
i18n (0.6.1, 0.6.0, 0.4.2)
journey (1.0.4)
jquery-rails (2.1.3, 2.0.3)
json (1.7.5, 1.7.3)
mail (2.4.4)
metaclass (0.0.1)
mime-types (1.19)
mocha (0.12.7, 0.12.3)
multi_json (1.3.7, 1.3.6)
mysql (2.8.1)
net-ldap (0.3.1)
polyglot (0.3.3)
rack (1.4.1, 1.1.3, 1.0.1)
rack-cache (1.2)
rack-openid (1.3.1)
rack-ssl (1.3.2)
rack-test (0.6.2, 0.6.1)
rails (3.2.8, 3.2.6, 2.3.14, 2.3.5)
railties (3.2.8, 3.2.6)
rake (0.9.2.2, 0.8.7)
rdoc (3.12)
ruby-openid (2.2.2, 2.1.8)
shoulda (3.3.2, 2.11.3, 2.10.3)
shoulda-context (1.0.1)
shoulda-matchers (1.4.1)
sprockets (2.8.1, 2.8.0, 2.1.3)
thor (0.16.0, 0.15.4)
tilt (1.3.3)
treetop (1.4.12, 1.4.11, 1.4.10)
tzinfo (0.3.35, 0.3.34, 0.3.33)