Since lock down I've been receiving a larger than normal amount of junk to two NTLWorld email addresses. I could probably check if they've been pwned, but what can I do about it on my Mac as I'm already marking them as junk, but still receive about 2 dozen per week to my inbox.
Sadly not much you can do apart from keep marking them as junk. I use a load of email addresses, my hotmail for companies I don't trust, my live for work companies I don't trust i.e. agencies, and a domain I own for companies I do trust but who each get a unique email address to use. The amout of spam in each account is as you would guess. Depending on which browser you use there are extensions like Bloody Vikings on Mozilla that tie in to temporary email websites like 10minutemail.com which allow you to have throwaway addresses.
Cheers. I've 9 email addresses in my Mac Mail App, but two of them have been picked up from somewhere. It's just a PITA to have to keep clearing them.