英文e-mail ~ 急,唔該晒

因為他聯絡不到你,所以想我們把以下的e-mail轉寄給你.

Because he can't contact you, so he want us to forward the below/attached
email to you.

or

Because he can't contact you, so he want to forward the below/attached
email to you through us.

As he cannot get in touch with you, so he would like us to forward the following email to you.

We forward this e-mail to you as he cannot contact you.
As he cannot contact you, we forward this e-mail to you.

Since he is unable to contact you, so I am forwarding this email to you.