Am 12.02.2014 14:46, schrieb Daniel Pocock: > On 12/02/14 14:12, Wietse Venema wrote: >> Daniel Pocock: >>> I'm trying to work out what is a sensible configuration for servers >>> without local delivery. >> http://www.postfix.org/STANDARD_CONFIGURATION_README.html#null_client > > I'm familiar with that, it is almost what I want > > They key difference is that I want to be more restrictive about > usernames that are accepted > > I was referring to the recipient addresses, not sender addresses
what is *more* restrictive in that context? you have to have a full list of valid addresses and reject *anything else* and there is nothing between example: local_recipient_maps = proxy:mysql:/etc/postfix/mysql-recipients.cf [root@rh:~]$ cat /etc/postfix/mysql-recipients.cf user = dbmail_readonly password = ******************* dbname = dbmail hosts = unix:/var/lib/mysql/mysql.sock query = select email from dbma_recipients where email='%s';
