Author: Marc Perkel Date: To: Nikademus CC: exim-users Subject: Re: [exim] Using DEFER instead of DENY or DROP for spam
One of the tricks I use and it works really well is that my highest MX
record points to an IP address that return DEFER on ALL messages. Real
email will retry on the lower MX records. Makes a lot of spam go away
and reduced system load by a lot not having to run these messages
through spam assassin.