Removed deprecation messages about mail.deliver()

app/services/organization_notifier_service.rb

@@ -7,7 +7,7 @@ class OrganizationNotifierService
     @organization.each do |org|
       posts = org.posts.active.of_active_members.from_last_week
       if posts.present?
-        OrganizationNotifier.recent_posts(posts).deliver
+        OrganizationNotifier.recent_posts(posts).deliver_now
       end
     end
   end

spec/mailers/organization_notifier_spec.rb

@@ -32,7 +32,7 @@ describe OrganizationNotifier do
     ActionMailer::Base.delivery_method = :test
     ActionMailer::Base.perform_deliveries = true
     ActionMailer::Base.deliveries = []
-    OrganizationNotifier.recent_posts(test_organization.posts).deliver
+    OrganizationNotifier.recent_posts(test_organization.posts).deliver_now
   end
 
   after(:each) do