需要写外电email？不知道该如何下笔？下面是一些外电email常用的开头语，不妨一试。
We acknowledge with thanks the receipt of your letter of...
We thank you for your letter of...
Referring to your letter of... , we are pleased to...
Reverting to your letter of... , we wish to say that...
In reply to your letter of..., we...
We wish to refer to your letter of... concerning…
In compliance with the request in your letter of ..., we...
Further to our letter of..., we are pleased to...
We received your letter dated... and are sorry for not having replied earlier as we wished to wait for more favorable news to give you. We are now pleased to...
We thank you for your letter of... and glad to note that you have received our catalogs.