RE: Exchange SMTP Hole?
From: Gary Everekyan (geverekyan_at_univision.net)
Date: 11/13/03
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Date: Thu, 13 Nov 2003 14:39:43 -0500 To: <tburns@torcausa.com>
I had good experience with MXTreme and Trend to protect Exchange from
outside.
Either way you will get better logging and control if you do decide to
insert a non MS product for SMTP security.
You will also get some spam control from these units.
Regards,
Gary Everekyan
CISSP, CISM, MCSE, MCT
Information Security Manager
Security and Audit
-----Original Message-----
From: Tom Burns [mailto:tburns@torcausa.com]
Sent: Tuesday, November 11, 2003 3:00 PM
To: focus-ms@securityfocus.com
Subject: Exchange SMTP Hole?
Good morning all,
I have an exchange server that's been running for quite some time (over
a year) and had it locked down to prevent relay (spam). It is patched
all the way up to 3a.
I checked my queues yesterday and got slammed by spam relaying.
Is there a security hole that MS does not know about yet in SMTP?????
The only way I resolved this was to block connection from 219.x.x.x,
218.x.x.x, 211.x.x.x, etc.
This server has been testing aginst ORDB.ORG and shown to NOT be an open
relay.
If anyone has any suggestions, please let me know.
Thomas A. Burns
System Administrator
Torca Products Inc.
Auburn Hills, MI 48326
248-373-8300 x186
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- Previous message: arek_at_chelmnet.pl: "RE: AD structure for a school environment"
- Maybe in reply to: Tom Burns: "Exchange SMTP Hole?"
- Next in thread: Paul Kurczaba: "New Microsoft Exchange Server Vulnerability"
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