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-rw-r--r--actionmailer/lib/action_mailer/base.rb3
1 files changed, 3 insertions, 0 deletions
diff --git a/actionmailer/lib/action_mailer/base.rb b/actionmailer/lib/action_mailer/base.rb
index e1f3fd03e2..3c21db991c 100644
--- a/actionmailer/lib/action_mailer/base.rb
+++ b/actionmailer/lib/action_mailer/base.rb
@@ -327,6 +327,9 @@ module ActionMailer
#
# config.action_mailer.preview_path = "#{Rails.root}/lib/mailer_previews"
#
+ # An overview of all previews is accessible at <tt>http://localhost:3000/rails/mailers</tt>
+ # on a running development server instance.
+ #
# = Configuration options
#
# These options are specified on the class level, like