app/mailers/user_mailer.rb
class UserMailer < ApplicationMailer
def confirmation(user)
@user = user
mail(to: user.email, subject: 'Please confirm your email')
end
def notification(user, message, link)
@user = user
@message = message
# 'root' links to the root_url if they're relative
link = root_url + link[1..link.length] if link.starts_with?('/')
@link = link
@unsubscribe_link = edit_user_url(user)
headers['List-Unsubscribe'] = "<#{@unsubscribe_link}>"
mail(to: user.email, subject: 'New Notification')
end
end