If it is sent to the enterprise mailbox, the enterprise should start to see it after modification, because the mailbox is arranged in the order of the latest received mail from high to low. In fact, just sending an email is not enough. I suggest you call for advice after sending an email and take this opportunity to introduce yourself. The employer will definitely be more impressed with you, and may even call you directly for an interview. So, call after you send the email, don't wait.