Many systems will produce an automated note that confirms receipt of an application, or gives information about general timelines, but you won't see it if it gets caught by your spam blocker.

一些系统会自动发出一封信确认收到你的申请，或者给出一些大概的时间信息，但如果这些信件被你的信箱过滤掉了你可能就看不见了。

youdao

The address is blocked by at least one spam blocker (barracudacentral.org).

FORBES: CPA License Termination Email is a Scam