Flooded with emails to root -- URGG

[David Southwell]

Hi

I am running postfix.

Am receiving a flood of  emails that appear to emanate from Servers who have 
received spam that has masqueraded root at mydomain as the email source. 

Could anyone please suggest the best way of dealing with these. Please bear in 
mind I am not all that familiar with postfix so if anyone feels treating me 
like an idiot and spoonfeeding the actual command s to use I would be most 
appreciative <chuckles> 

I have just installed procmail but not yet activated it. (Incidentally I do 
have a number of virtual domains but the only one that seems to get flooded 
is the primary hostname.

There have also been numerous failed hacking attempts on to the system but as 
they keep trying to get in using services that are not actually running they 
have got nowhere (so far!!)

david