解决方法
@H_403_7@ 你可以在devizer.en.yml文件中更改它在打包目录中并为任何邮寄者设置自己的主题
mailer:
confirmation_instructions:
subject: 'Confirmation instructions'
reset_password_instructions:
subject: 'Reset password instructions'
unlock_instructions:
subject: 'Unlock Instructions'