feat: Route emails based on x-original-to in email channel (#6901)

Fixes: #6608
ref: https://linear.app/chatwoot/issue/CW-30/emails-not-routed-based-on-x-original-to

app/finders/email_channel_finder.rb

@@ -7,12 +7,18 @@ class EmailChannelFinder
 
   def perform
     channel = nil
-    recipient_mails = @email_object.to.to_a + @email_object.cc.to_a
+
     recipient_mails.each do |email|
       normalized_email = normalize_email_with_plus_addressing(email)
       channel = Channel::Email.find_by('lower(email) = ? OR lower(forward_to_email) = ?', normalized_email, normalized_email)
+
       break if channel.present?
     end
     channel
   end
+
+  def recipient_mails
+    recipient_addresses = @email_object.to.to_a + @email_object.cc.to_a + @email_object.bcc.to_a + [@email_object['X-Original-To'].try(:value)]
+    recipient_addresses.flatten.compact
+  end
 end