What spammers are using the same domain for longer than couple of hours?
What do you expect to achieve by blocking an already abandoned domain?
What do you expect to achieve by blocking an already abandoned domain?
So wait, it seems like you're claiming that you're receiving spam from the same gmail/outlook address for months.
This is fascinating and I have a hard time believing it, might you be able to share some headers?
OTOH, if the spammers are forced to frequently switch accounts, they're clearly being impeded.