> On 08/25/2014 11:28 PM, Wietse Venema wrote: >> Do I ned to change any settings in postfix, so that client IPs are >> resolved into hostnames? > > You need the correct DNS server in /etc/resolv.conf. > > You must not have "disable_dns_lookups=yes" in main.cf or master.cf. > > You must not have "smtpd_peername_lookup=no" in main.cf or master.cf. > > You may also need to turn off chroot per instructions in > http://www.postfix.org/DEBUG_README.html#no_chroot
I have turned off chroot for smtp and now it works. But that is not an optimal solution. I would like to keep chrooted smtp. Is there any way to make it work even in chroot? I see, Postfix has all the necesary files in /var/spool/postfix/etc: $ ls /var/spool/postfix/etc hosts localtime nsswitch.conf resolv.conf services and the config options you mentioned are OK as well: disable_dns_lookups=no smtpd_peername_lookup=yes
