How to automatically delete Blocked sender's messages?

Hello vschafer,

We're not able to see the way that you set these rules up as it was not attached to your posting, but we'd love to try to help. This article explains how to create and use rules in your Mac Mail: Use rules to manage emails you receive in Mail on Mac - Apple Support. Follow this guidance:

1. "In the Mail app  on your Mac, choose Mail > Settings, then click Rules.
2. To review an example of a rule, select a provided rule, then click Edit. To close the rule, click Cancel.
3. Click Add Rule, then type a name for the rule.
4. Indicate whether any or all of the conditions must be true for the rule to be applied to a message.
5. Specify the conditions.
6. To use different header fields in conditions, choose “Edit header list” from the bottom of the first pop-up menu. To add your own header, click the Add button  in the Message Headers window.
7. Choose actions to perform on messages that meet the conditions. To specify multiple actions, click the Add button .
8. You can use AppleScript scripts as rule actions.
9. When you’re done, click OK, then decide to apply rules to existing messages already in mailboxes or to new messages.
10. You can apply rules to existing messages later by choosing Message > Apply Rules."

We hope this helps. Let us know if we can assist with anything else at all. Take care.