palette/messages/assignment_unmuted.email.mustache

<% define_content :link do %>
  <%= polymorphic_url([asset.context, asset]) %>
<% end %>
  
<% define_content :subject do %>
  <%= t :subject, "Assignment Unmuted: %{title}, %{course}", :title => asset.title, :course => asset.context.name %>
<% end %>

<%= t :body, <<-BODY, :title => asset.title, :course => asset.context.name, :url => content(:link)
Your instructor has released grade changes and new comments for %{title}. These changes are now viewable.

Your can view it here:
%{url}
BODY
%>