Thank you for your interest reply, I know this mail will not come to you as a surprise, since there was only a bit of correspondence, but please bear with me.

感谢您关注的答复，我知道这邮件将不会来找你感到惊奇，因为只有一些信件，但请容忍我。

youdao

Demonstrate particular care when using the "Reply" command during email correspondence to ensure the resulting message is not delivered to unintended recipients.

特别要注意在电子邮件中使用“回复”指令时要确保所生成的消息不会被发送至未指定收件方。

youdao

Include any correspondence that the IRS should consider in your reply.

FORBES: Tax Tip #2: Dealing With IRS Notices