This should help you discover most (not all) IP ranges in cidr format:
host -t txt outlook.com | tr " " '\n' | awk '/\./' | sed
"s/include:\|ip4://g" | sort -u | grep -i "[a-z]" | while read record; do
host -t txt $record ; done | tr ' ' '\n' | awk -F ":" '/[0-9]*\.[0-9]/
{print $2"\tpermit"}' | sort -u-----Original Message----- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of D'Arcy J.M. Cain Sent: Wednesday, May 14, 2014 5:59 PM To: postfix-users@postfix.org Subject: Whitelisting individual addresses with postscreen It looks like hotmail is on two DNSBLs and postscreen is blocking them. I would like to offer my users a way to whitelist individual addresses but it looks like I can only whitelist CIDR blocks. Is that the case or do I have another option? Cheers. -- D'Arcy J.M. Cain System Administrator, Vex.Net http://www.Vex.Net/ IM:da...@vex.net VoIP: sip:da...@vex.net
