可以帮我翻译下这两句英文吗？

1.为了不造成邮件延误，我已经把这邮件转发速递了。
to prevent mail delaying, i sent the mail through courier
2.如果这邮件造成延误，一切责任由你公司负责。
if there is any delay on the mail, your company have to take all the responsibility

1.In order not to cause delays in mail, I have this message on the courier.
2.If this message delay, all the responsibility from your company.

第二句，似应用虚拟语气为好，即：if there was..., ...would(should) have to....