spamming to reserved email user-names: (webmaster, admin etc)

Hi Folks,

I’ve recently been getting a lot of spam to reserved email names - which I’m not actively using, like “administrator@.com" or "webmaster@.com” etc.

I can’t set these up as emails - because the system seems to claim them as reserved names.

What I would like to do is either block them from receiving, or trash them with or without an auto-reply to cover any possible “bona fide” visitors.

can any suggest any way of doing this?

I’m not so technical (ie no shell commands or programming); I can use Virtualmin and Webmin dialogues pretty well, but I’m not a server-side tech guy …

thanks for any help; much appreciated…

Gary