Educause Security Discussion mailing list archives

Re: Reverse DNS


From: Dexter Caldwell <Dexter.Caldwell () FURMAN EDU>
Date: Wed, 21 Jan 2009 10:59:52 -0500

I'm not sure reverse DNS is all that much help, but dns
blocklisting/blackholing might be more useful.  The link below helps show
you how...


http://malwaredomains.com/?page_id=6



Dexter Caldwell
Information Security Administrator
Computing & Information Services
Furman University



The EDUCAUSE Security Constituent Group Listserv
<SECURITY () LISTSERV EDUCAUSE EDU> writes:
I am wondering if any institutions have enabled reverse DNS on their
incoming emails to help block spam?  If you use it, how many legitimate
emails are blocked?  If you don't use it, what other measures do you
employ to help reduce the amount of spam that makes it through your spam
filter?

Thanks,

Daniel Bennett
IT Security Analyst
Security+

PA College of Technology
One College Ave
Williamsport PA 17701
(P) 570.329.4989


Current thread: