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[cobalt-users] Raq550: How do we Block spam with reverse DNS checks



In the beginning of September 2003 a national realty company (kw.com) started
checking incomming email for reverse DNS settings to help stop spam.  They
report that most of the spam has been blocked.  Only a few companies that did
not have any reverse DNS settings had problems but those companies have fixed
them thier dns settings.  Is there a way that Raq550 owners can block Email from
servers with no reverse DNS settings?

John