[cobalt-security] Should I worry

Subject: [cobalt-security] Should I worry
From: "Audric Leperdi" <aleperdi@xxxxxxxxxxxxx>
Date: Wed, 12 Dec 2001 10:32:10 +0100
List-id: Mailing list for users to address network security on Cobalt products. <cobalt-security.list.cobalt.com>

During the last few days I got hundreds of these:

Dec 12 09:04:08 qube3 sendmail[20950]: NOQUEUE: mrh.rcmail.com [216.54.1.19] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA

should I worry.

Meanwhile I changed the default rule of my firewall from accept to deny.

Audric

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