[Maia-users] Spam as failure delivery notice

[Aaron Bennett]

Pekka.Panula at sofor.fi wrote:
>
> Hi
>
> Not directly for Maia but we are getting lots of failure delivery 
> notices as spam, seems like spammer is using our mail server-address 
> and our sales e-mail and somehow servers are sending failure delivery 
> notices to our system even we have nothing todo with them how is that 
> possible? Any way to forbit these kind of messages?
>
>

There are a good bit of things you can do to reduce this... see:

http://www.postfix.org/BACKSCATTER_README.html

Some of these are good, some are extreme.