# This file has to be "compiled" with "postmap" # Reject anybody that HELO's as being in our own domain(s) # (Note that if you followed the order suggested in the main.cf # examples, above, that machines in mynetworks will be okay.) /.*\.colino\.net/ REJECT /.*\.geekounet\.org/ REJECT /62\.212\.100\.143/ REJECT /82\.228\.82\.76/ REJECT /localhost/ REJECT /^192\.168\..*/ REJECT /^10\..*/ REJECT # If you want to be really picky about it: HELO'ing with an IP # address is RFC-compliant - *if* it's enclosed in square-brackets # ("[]"s). (One would think "reject_invalid_hostname" checks for # this, but it does not.) /^[0-9]+(\.[0-9]+){3}$/ REJECT