When a user configures "No Automatic Filtering" in Junk Mail Options:
1. No messages will ever be blocked from the user's mailbox.
2. Messages can still be blocked at the server level.
3. Messages cannot be blocked at the network firewall.
4. Most obvious spam messages will still reach the client computer.
By choosing "No Automatic Filtering," the user essentially opts out of having any automatic filtering or blocking of messages within their mailbox. This means that no messages will be automatically blocked, allowing all messages to reach the user's mailbox. However, it's important to note that even though messages are not blocked within the mailbox, they can still be blocked at the server level, where more robust filtering mechanisms may be in place. Messages cannot be blocked at the network firewall as that operates at a different level of network security. Despite selecting "No Automatic Filtering," some obvious spam messages may still make their way to the user's client computer since no automatic filtering is applied within the mailbox itself.
