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document how to access mail previews. [ci skip]

/cc @pixeltrix
This commit is contained in:
Yves Senn 2013-12-18 14:36:31 +01:00
parent 01162b3d77
commit 69b5dc7e00

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@ -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