On 2012-05-16 James Lay wrote: > Thanks Ben and Brian. I haven't found too much information on > implementing this...
Postfix is well-documented. I suggest you start here: http://www.postfix.org/documentation.html > I'm guessing it's just adding: > > transport_maps = regexp:/etc/postfix/reject-users > > ? No. > Does my transport_maps file contain domains or can it contain email > addresses? The answer to that question can be found in "man 5 transport". However, you don't want to mess around with a reject-users table in the first place (particularly not as a transport map). Instead just change your smtpd_recipient restrictions like this: smtpd_recipient_restricitons = permit_mynetworks reject_unauth_destination reject_unlisted_recipient ... As Brian already explained, it's the default to reject undefined recipients, so you wouldn't need to do anything (unless you have configured a catch-all somewhere, which you shouldn't). However, I consider it good practice to reject mail for invalid recipients early on (before doing more expensive checks), which is what the reject_unlisted_recipient restriction is for. Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky
