If you are a #postfix user and think what is described in this HOWTO http://www.postfix.org/ADDRESS_VERIFICATION_README.html[1] is useful, I can tell you:IT IS NOT.Longer version: https://nxdomain.no/~peter/twenty-plus_years_on_smtp_callbacks_are_still_pointless.html[1] a more appropriate title would be "Further punishing joejob targets HOWTO"#smtp #postfix #smtpcallbacks #joejobs #greytrapping
