[ILUG] postfix whitelist smtp servers

[Giulivo Navigante]

Gavin McCullagh wrote:
> Hi,
> 
> On Thu, 14 Feb 2008, Ciaran Johnston wrote:
> 
>>> except that the ??? is the problem.  I can't figure out how to specify all
>>> networks.  A /8 is easy with eg. "127. " but to ban everyone would require
>>> 254 of those lines which can't be right.
>> I haven't tried it, but from access(5):
>>
>> NOTE  3:  use the cidr lookup table type to specify network/netmask
>> patterns.  See  cidr_table(5)  for details.
> 
> I'm not sure how I missed that in the manpage but it's now working as
> advertised.  

Anyway, you shouldn't have any need of "denying all the others"

postfix, as every mta, accepts by default emails for the local users 
from everybody and for other domains only from his internal network

If you need to add an host or a subnet to the access list you can do it 
in many ways, one is the one you used, but no reasons to block 
explicitly the others in your file
-- 
Giulio Fidente
"What we have done for ourselves alone dies with us;
  what we have done for others and the world remains."