Hello,
i try to figure out how to restrict ACCESS to the SMTP daemon.
With that, i mean something like the tcpwrapper for SMTP/SMTPS ...
For what?
I have several root-Servers, vServer and Xen domains - only one is the
mail system and should be available for mail from the internet.
The others servers use the mail server as the smart relay ("relayhost =
...") and have mynetworks at "" or "127.0.0.1/8 <myip>/32". I think, i
could solve this with mynetworks = "" and mynetworks_style = host ...
But those servers also need to RECEIVE mail - from the other servers at
least.
That means, for example, they need to receive mail from the mail system
- and for that, they need a running smtpd.
But all other servers in the internet shall never be able to access
those smtp daemons ...
And this is not about relaying for for this or that recipient, but just
to drop access from all oter networks and IPs.
How to do that?!?!
I just could not find a way :-(
Thanx a bunch for any idea ...
