Also detect gmail vacation emails based on "vacation" in subject. Fixes issue#193.

app/models/channel/filter/out_of_office_check.rb

@@ -27,6 +27,11 @@ module Channel::Filter::OutOfOfficeCheck
         mail[ 'x-zammad-out-of-office'.to_sym ] = true
       end
 
+      # gmail check out of office characteristics
+      if mail[ 'auto-submitted'.to_sym ] =~ /auto-replied/i && mail[ 'subject'.to_sym ] =~ /vacation/i
+        mail[ 'x-zammad-out-of-office'.to_sym ] = true
+      end
+
       return
     end
 

test/unit/email_process_out_of_office_test.rb

@@ -240,4 +240,60 @@ Some Text"
 
   end
 
+  test 'process with out of office check - gmail' do
+
+    ticket = Ticket.create(
+      title: 'ooo check - gmail',
+      group: Group.lookup(name: 'Users'),
+      customer_id: 2,
+      state: Ticket::State.lookup(name: 'closed'),
+      priority: Ticket::Priority.lookup(name: '2 normal'),
+      updated_by_id: 1,
+      created_by_id: 1,
+    )
+    article = Ticket::Article.create(
+      ticket_id: ticket.id,
+      from: 'some_sender@example.com',
+      to: 'some_recipient@example.com',
+      subject: 'ooo check',
+      message_id: '<20150830145601.30.608881@edenhofer.zammad.com>',
+      body: 'some message bounce check',
+      internal: false,
+      sender: Ticket::Article::Sender.lookup(name: 'Agent'),
+      type: Ticket::Article::Type.lookup(name: 'email'),
+      updated_by_id: 1,
+      created_by_id: 1,
+    )
+    sleep 1
+
+    # gmail out of office example #1
+    email_raw_string = "From: me@example.com
+To: customer@example.com
+Subject: vacation: #{ticket.subject_build('some new subject 1')}
+Precedence: bulk
+X-Autoreply: yes
+Auto-Submitted: auto-replied
+
+Some Text"
+
+    ticket_p, article_p, user_p, mail = Channel::EmailParser.new.process({}, email_raw_string)
+    assert_equal(true, mail['x-zammad-out-of-office'.to_sym])
+    ticket = Ticket.find(ticket.id)
+    assert_equal(ticket.id, ticket_p.id)
+    assert_equal('closed', ticket.state.name)
+
+    # normal follow up
+    email_raw_string = "From: me@example.com
+To: customer@example.com
+Subject: #{ticket.subject_build('some new subject - none')}
+
+Some Text 2"
+
+    ticket_p, article_p, user_p, mail = Channel::EmailParser.new.process({}, email_raw_string)
+    assert_equal(false, mail['x-zammad-out-of-office'.to_sym])
+    ticket = Ticket.find(ticket.id)
+    assert_equal(ticket.id, ticket_p.id)
+    assert_equal('open', ticket_p.state.name)
+  end
+
 end