Can blocked emails see a mail sent

When an email is blocked by a recipient's email provider or spam filter, it typically means that the email is not delivered to the recipient's inbox. However, the email may still be stored in a "spam" or "junk" folder, or it may be rejected and returned to the sender.

In some cases, a blocked email may still be visible to the recipient, depending on the specific settings and configurations of their email provider or spam filter. Here are a few possible scenarios:

1. Spam folder: If the email is marked as spam, it may be delivered to the recipient's spam folder, where they can still see it. However, the email may not be visible in their inbox, and they may need to manually check the spam folder to see if any legitimate emails have been misclassified.
2. Junk folder: Some email providers have a separate "junk" folder where they store emails that are suspected of being spam. These emails may still be visible to the recipient, but they may not be delivered to their inbox.
3. Return-Path: If the email is blocked, the sender's email provider may still receive a "bounce" message indicating that the email was not delivered. This bounce message may include information about why the email was blocked, which can help the sender improve their email sending practices.
4. Email headers: Even if the email is blocked, the recipient's email provider may still store the email headers, which contain information about the email's origin, routing, and delivery status. These headers can be used to investigate why the email was blocked or to identify potential issues with the sender's email infrastructure.

In summary, while a blocked email may not be delivered to the recipient's inbox, it may still be visible in a spam or junk folder, or it may be stored in the sender's email provider's logs.