I used Actionmailer
in my rails app to send an email of welcoming and link to the app but in the http://guides.rubyonrails.org/action_mailer_basics.html there is not confirmable like devise :
devise :registerable, :confirmable
Then, do the migration as:
rails g migration add_confirmable_to_devise
Is there is a way to do it or must I delete my ActionMailer
and Use devise :confirmable
?