[RPZ] RPZ and MX

John Hascall john at iastate.edu
Fri Jun 1 14:58:39 UTC 2012

Our primary aim in using RPZ is to protect web users
by directing them to a walled garden.

It appears that RPZ is also affecting MX records
in the blacklisted zones.

Is there a way to exempt MX records from the
RPZ process?

We recognize that this does present a risk as
it would provide a possible mechanism for
extant malware to "phone home".


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