Entries at the end of the Block is not filtering.
I have gotten SPAM in the Spam Folder after entering the email address.
Re-viewing the Block List I see my entries are (still) last.
I suspect this may be the reason the SPAM got through.
To better understand the use of the Block List my question is -
What is the time frame for the entries in the Block List to be sequenced?

Hi there. Emails that are caught by the spam filter (going to the Spam folder) are not affected by the filters set. As for the blocking, please keep in mind that most spam is being sent from spoofed email addresses, meaning what you're seeing as the sender might not be a real email address. This is why the best way to manage spam is to mark emails going to your Inbox, as Spam. The spam folder then automatically empties after 30 days.