stupidstupidspammer

Recently I was poking around a very spam-besieged server running RedHat Linux and noticed that the default sendmail configuration included these lines:

dnl # We strongly recommend not accepting unresolvable domains if you want to
dnl # protect yourself from spam. However, the laptop and users on computers
dnl # that do not have 24x7 DNS do need […]

Most of the discussion around stemming the flood of email spam centers on stopping incoming spam from reaching your inbox, usually with a mixture of filtering rules and blacklists (or in some cases, whitelists for permitted senders).

There’s another possible approach, which is to reduce the amount of spam that spammers attempt to send you. This […]