Michael Peter:
> Hi,
>
> How can force postfix to reject emails from mail servers which doesn't
> have a reverse dns entry ?
You can use reject_unknown_reverse_client_hostname or
reject_unknown_client_hostname, depending on the appropriate
definition of "unknown". Note that the outcome of these depends on
how well DNS works. Don't use if if your end has poor DNS service.
> and is this correct thing to do according to the standards?
This is more a matter of policy than law. I prefer to turn some
additional tests when check_client_access matches "unknown".
Wietse
