diff --git a/config/runtime.exs b/config/runtime.exs
index 888a3ea..266a8ca 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -146,10 +146,10 @@ if config_env() == :prod do
   # Also, you may need to configure the Swoosh API client of your choice if you
   # are not using SMTP. Here is an example of the configuration:
   #
-  #     config :polar, Polar.Mailer,
-  #       adapter: Swoosh.Adapters.Mailgun,
-  #       api_key: System.get_env("MAILGUN_API_KEY"),
-  #       domain: System.get_env("MAILGUN_DOMAIN")
+  config :polar, Polar.Mailer,
+    adapter: Swoosh.Adapters.Postmark,
+    api_key: System.get_env("POSTMARK_API_KEY")
+
   #
   # For this example you need include a HTTP client required by Swoosh API client.
   # Swoosh supports Hackney and Finch out of the box:
diff --git a/lib/polar/accounts/user_notifier.ex b/lib/polar/accounts/user_notifier.ex
index f42456b..bab6767 100644
--- a/lib/polar/accounts/user_notifier.ex
+++ b/lib/polar/accounts/user_notifier.ex
@@ -5,10 +5,12 @@ defmodule Polar.Accounts.UserNotifier do
 
   # Delivers the email using the application mailer.
   defp deliver(recipient, subject, body) do
+    notifier = System.get_env("NOTIFIER_EMAIL", "images@opsmaru.com")
+
     email =
       new()
       |> to(recipient)
-      |> from({"Polar", "contact@example.com"})
+      |> from({"OpsMaru Image Server", notifier})
       |> subject(subject)
       |> text_body(body)
 
diff --git a/lib/polar_web/controllers/streams/item_controller.ex b/lib/polar_web/controllers/streams/item_controller.ex
index 82e214c..9aa5dc0 100644
--- a/lib/polar_web/controllers/streams/item_controller.ex
+++ b/lib/polar_web/controllers/streams/item_controller.ex
@@ -20,7 +20,7 @@ defmodule PolarWeb.Streams.ItemController do
 
       endpoint = credential.space.cdn_host || default_cdn_host
 
-      url = Path.join(["https://", endpoint, bucket, item.path])
+      url = Path.join(["https://", endpoint, item.path])
 
       redirect(conn, external: url)
     end