You can report messages as junk in the Mail app and help filter junk mail in iCloud. Then future messages from the same sender are marked as junk.
Or you can drag the message to the Junk folder in the sidebar. Correct false-positives Filtering out junk mail can block a legitimate from reaching your inbox.
This is called a false-positive. Or just drag the message to the Inbox in the sidebar.
Make sure to check your Junk folder for messages that were incorrectly marked as junk mail. messages in the Junk folder are automatically deleted after 30 days.
Learn more. These tools are similar to the ones that are used to crack passwords. And they work.
Tricking your friends. Cybercriminals can steal contact lists or use social engineering to trick people flr giving them access. Buying lists. Spammers can purchase lists legally and illegally.