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Re: blocking port 25 at the border?
From: Matthew Keller <kellermg () POTSDAM EDU>
Date: Fri, 24 Aug 2007 01:10:11 -0400

On Thu, 2007-08-23 at 15:08 -0600, Bob Bayn wrote:
Do you regulate port 25 at the border?

We control all inbound AND outbound port 25 usage. Legitimate,
IT-endorsed mail servers are all that are allowed either way. Rationale
includes ensuing mail is scanned prior to delivery/transfer. We do allow
POP/IMAP/Webmail/etc. outbound.

Matthew Keller
Information Security Officer & Network Administrator
Computing & Technology Services
State University of New York @ Potsdam
Potsdam, NY, USA

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