Hey there Spazticus,
Thanks for reaching out to the Apple Support Communities.
If using an iCloud email, you can find steps on how to change your iCloud Mail filter settings and manage junk mail from iCloud.com at these links here: Set up rules to filter email in Mail on iCloud.com - Apple Support
Set up rules to filter email
1. In Mail on iCloud.com, click
at the top of the Mailboxes list, then choose Preferences.
2. Click Rules, then click “Add rule.”
3. Below “If a message,” use the pop-up menu and text field to specify the type of messages you want to filter.
4. Below Then, use the pop-up menus or fields to specify an action for the rule.
5. Click Add.
You can have up to 500 rules.
Important: If you apply rules to a folder and then delete the folder or change its name, make sure to update the rules for those folders accordingly. For example, you can’t forward messages to a deleted folder.
Change or delete email filtering rules
1. In Mail on iCloud.com, click
at the top of the Mailboxes list, then choose Preferences.
2. Click Rules, then select a rule.
3. Do any of the following:
* Change a rule: Specify new filtering conditions in the pop-up menus and text fields, then click Done.
* Delete a rule: Click Delete.
Manage junk mail in Mail on iCloud.com - Apple Support
Mark an email as junk
1. In Mail on iCloud.com, locate the message list and select the message or messages you want to mark as junk.
2. Do one of the following:
* If you selected one message: Click
, then click Move to Junk.
* If you selected multiple messages: Click Mark, then click “Move to Junk.”
Subsequent messages from the same sender are automatically marked as junk.
Indicate that an email isn’t junk
1. In Mail on iCloud.com, click the Junk folder in the Mailboxes list.
2. Select the message or messages, then do one of the following:
* If you selected one message: Click
, then click Move to Inbox.
* If you selected multiple messages: Click Mark, then click “Move to Inbox.”
Subsequent messages from the same sender are no longer automatically marked as junk.
We do want you to be aware that not all iCloud.com features will be accessible on all devices, so you may need to complete these steps from an iPad or your Windows computer.
If wanting to change the junk mail settings for a third-party email account, this may need to be done from your email providers website when signed into your account.
Let us know if that's able to help.
Take care!