Wietse Venema: [ Charset UNKNOWN-8BIT unsupported, converting... ] > Keld J_rn Simonsen: > > 450 indicates a temporary dns error, and I have set > > unknown_address_reject_code = 550 > > unknown_address_reject_code is for permanent errors. > > In your case, the system library getnameinfo() returns a > temporary error, therefore Postfix will reply with 450. > > Since you also can't look up the name for my own server 168.100.189.2, > I suspect one or more of the following: > > - Incorrect system permissions of / /etc /etc/resolv.conf > /etc/nsswitch.conf or the files and directories referenced by > /etc/nsswitch.conf. > > Files must be world readable, and directories must have world > read-execute permission. > > - Running Postfix chrooted without providing the necessary files > in the chroot jail.
For this one, see also: http://www.postfix.org/DEBUG_README.html#no_chroot > Wietse > >
