Blocked emails don't delete

Hey there, georgefromclarens,

Thanks so much for using Apple Support Communities.

We want to recommend that you make sure your Mac is running the latest version of macOS available. Since macOS updates often include fixes for issues of unexpected behavior, this is usually a great first step. Here is how you can update: Update macOS on Mac - Apple Support. Once you're up to date, be sure that you've followed the steps to set up a rule in Mail which you can find here: Use rules to manage emails you receive in Mail on Mac - Apple Support

If you are using an iCloud email account, then you can also utilize the steps in this article to set up a rule in Mail on iCloud.com: Set up rules to filter email in Mail on iCloud.com - Apple Support

We hope that this information is helpful.

​Have a great day!

I and others have reported that blocking email only sends it to junk for some reason.