On 2010-01-18 Frank Bonnet wrote: > I wonder how to reject a particuliar address at MX machine > > actually I use : > smtpd_sender_restrictions = > \check_sender_access hash:/usr/local/etc/postfix/sender_access > > on the mailhub which is not "Internet visible" but I would like to reject > with the MX machine to avoid transmission to the mailhub. > > The MX does not provide local delivery, it uses transport to forward > emails to the mailhub and several other machines. > > is it possible ? > if yes with which instruction ?
http://www.postfix.org/postconf.5.html#relay_recipient_maps If your MX is configured to forward all mail for your domain(s) to the mailhub, and it's left to the mailhub to check if a particular address is valid, you'll be generating backscatter. Don't do that. Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky