Re: Blocking port 25 outbound

[Scott Genung <sagenung () ILSTU EDU>]

Joseph,

We block all outbound SMTP not originating from trusted email servers. It's
dramatically reduced the number of times our name space has been
blacklisted since we implemented this approach in January of this year.

At 02:29 PM 8/22/2005, you wrote:
> Hello out there,
>
> We are considering blocking all port 25 traffic outbound.  We have noted
> various ISP's and others moving to block port 25 outbound to reduce
> "spamming".  We wish to be good "netizens"
> Have any of you done this already and what has been the push back of
> issues related to implementation on your campus?
>
> Regards,
>
> Joseph A. Lazor
> Florida Sate University


Scott Genung
Manager of Networking Systems
Telecommunications and Networking
Illinois State University
124 Julian Hall
Normal, IL 61790-3500

sagenung () ilstu edu
Phone: (309)438-7258
Web: http://www.tel.ilstu.edu