app/mailers/admin_mailer.rb
class AdminMailer < ActionMailer::Base
default from: "admin@hokui.net"
def approval_request(admins, users_waiting_approval)
@users = users_waiting_approval
headers["X-MC-PreserveRecipients"] = "false"
mail to: admins.map(&:email), subject: '[北医ネット] 新しい承認申請があります'
end
end