On 25/04/2019 18:42, luis.dominguez wrote: > Hello. I'm using postfix + dovecot for my example.com domain, but i > want that any missing local users change the mail to @net.example.com > and go to my relay host. I was configured luser in postfix but when I > send a mail to a unknown user is not working. I'm using LDA with > dovecotEnviado desde mi smartphone Samsung Galaxy.
Luis it sounds dangerous to accept email for unknown users and then forward it on somewhere else, unless your relay host also has a catch all address. Otherwise if your relay host bounces unknown users, your server can become a source of back scatter. Having said that, what error are you getting and what is your configuration? http://www.postfix.org/DEBUG_README.html John