Change Junk Mail preferences in Mail on Mac
Use Junk Mail preferences in Mail to change options for managing junk mail and blocked senders.
To change these preferences in the Mail app on your Mac, choose Mail > Preferences, then click Junk Mail.
Junk Mail Behaviours
Enable junk mail filtering
Turn Mail’s junk mail filter on or off.
If your email account filters junk mail on the mail server, messages might be moved to the Junk mailbox even when this option isn’t selected.
Mark as junk mail, but leave it in my Inbox
Highlight junk mail with colour and leave it in your Inbox.
These messages contain a banner across the top with a button to confirm whether the message is junk. This setting is useful for monitoring what Mail considers junk mail.
Move it to the Junk mailbox
Mail automatically moves messages that it considers junk to the Junk mailbox.
This setting is useful when you’re confident that Mail correctly identifies junk mail and you don’t want those messages in your inbox.
Perform custom actions
Refine the junk mail filter by adding conditions to identify junk mail, and actions such as deleting those messages.
When you select this option, you can set advanced criteria to identify junk mail.
The following types of messages are exempt from junk mail filtering
Don’t filter messages from senders who are in the Contacts app, you’ve previously corresponded with, or know your full name.
Trust junk mail headers in messages
Use any junk mail detection already present in messages you receive. Mail uses this information to more accurately identify junk mail.
Filter junk mail before applying my rules
Mail runs the junk mail filter before it runs any rules that you created.
This option ensures that all messages, even those that your rules might move out of the Inbox, are evaluated by the junk filter.
Restore the default criteria for identifying junk mail.
Use this option only if Mail no longer handles junk mail as you expect. Resetting the filter deletes everything that Mail has learned from you about junk mail.
Set criteria that messages must meet to be identified as junk mail. This option is available only when you select “Perform custom actions”.
Enable blocked mail filtering
Block email messages from specific senders and control what happens to the messages when they arrive.
Mark as blocked mail, but leave it in my Inbox
Indicate a sender is blocked but leave their messages in your Inbox.
These messages contain a banner across the top with a button to display the Blocked pane in Mail preferences, where you can manage blocked senders.
Move it to the Trash
Automatically move messages from blocked senders to the Trash mailbox so you don’t see their messages in your Inbox.
Email address list
The list of email addresses whose messages you’re blocking.
Add , Remove
Add an email address to the list of blocked senders, or remove one.
You can also add an email address to the list or remove it by clicking the arrow next to the sender’s name in a message, then choosing Block Contact or Unblock Contact.