config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
:tls => true,
address: 'smtp.yandex.ru',
port: '465',
domain: 'ВАШ_ДОМЕН.ru',
authentication: :plain,
user_name: 'ЮЗЕР@ВАШ_ДОМЕН.ru',
password: 'ПАРОЛЬ'
}