Giovanni Mancuso a écrit : > Hi to all, > i have a question about a particular postfix configuration. > In my test machine, i try to create a particular enviroment. I have one > postfix istance that bind in 0.0.0.0:25 and in this postfix istance i > use a relay_domains and relay_transport to redirect all mail from one > domain to another postfix instance that bind in localhost:2525. > For example: > > relay_domains = example.com > relay_transport = smtp:localhost:2525 > > The second istance is use to manage the users and other particular > condition, and in my configuration would that this istance is separate > for my first instance. > > Now it works very well, but there is a problem. > If my second postfix istance (localhost:2525) return for example Error > 554 or Error 551 after "rcpt to" command, my first postfix instance, > send the notification for bounce. This isn't very well because i could > be attacked form spammer. > > My question specifically is: " Can i configure my fisrt istance to proxy > all SMTP comunication only for one domain??" > > Else, For you is there another mode to configure my enviroment? >
you can use reject_unverified_recipient, called from a check_recipient_access. but it's better to do recipient validation on the first instance, without querying the second one. > Thanks to all and sorry for my bad English ;-)
