diff --git a/app/views/layouts/mailer.text.html.erb b/app/views/layouts/mailer.text.html.erb
index e4860fd5..53ccca0d 100644
--- a/app/views/layouts/mailer.text.html.erb
+++ b/app/views/layouts/mailer.text.html.erb
@@ -26,7 +26,9 @@ hr {
 </head>
 <body>
 <span class="header"><%= Redmine::WikiFormatting.to_html(Setting.text_formatting, Setting.emails_header) %></span>
+<%= call_hook(:view_layouts_mailer_html_before_content, self.assigns) %>
 <%= yield %>
+<%= call_hook(:view_layouts_mailer_html_after_content, self.assigns) %>
 <hr />
 <span class="footer"><%= Redmine::WikiFormatting.to_html(Setting.text_formatting, Setting.emails_footer) %></span>
 </body>
diff --git a/app/views/layouts/mailer.text.plain.erb b/app/views/layouts/mailer.text.plain.erb
index 4b8c0b4f..d4e9c04d 100644
--- a/app/views/layouts/mailer.text.plain.erb
+++ b/app/views/layouts/mailer.text.plain.erb
@@ -1,4 +1,6 @@
 <%= Setting.emails_header %>
+<%= call_hook(:view_layouts_mailer_plain_before_content, self.assigns) %>
 <%= yield %>
+<%= call_hook(:view_layouts_mailer_plain_after_content, self.assigns) %>
 -- 
 <%= Setting.emails_footer %>
