Attached please kindly find the ……
Enclosed is the ……, please kindly find it.
Attached you will find……,
I have received your email (yesterday/last week/this morning……).
Your email has been received.
Thanks very much for your early reply.
Thank you for your email.
I know what you mean.
I understand what you mean.
Got it. （*非常口语化，适合于关系很熟悉的同事朋友之间。）
I do not quite understand what you meant.
I have some problem understanding what you meant.
Could you please put it in a clearer way?
Could you please explain it in detail?
Could you please further explain it?
What do you mean exactly by saying……？
Contact me if you have any problem.
If there is any uncertainty, feel free to contact me.
Call me if you have any problem.
Please let me know if anything needs to be improved.
Your advice/suggestion will be greatly appreciated.
I will further modify it.
I will further check it.
Once confirmed, I will let you know immediately.
Once confirmed, I will notice you ASAP. （*ASAP=as soon as possible 尽快）
I’m looking forward to your early reply.
Your promote reply will be greatly appreciated.
Your early reply will be highly appreciated.
Thanks a lot.
Thank you very much.
Many thanks. （*用于关系熟悉的同事朋友间。）
I hope everything goes well with you.
I wish you all the best.