Mail Attack
Robert Williams
rwilliams at covenantdata.com
Tue Aug 23 17:59:48 UTC 2005
Surprisingly we have not had any problems like that where we are receiving
e-mail form unknown users. We have a way that if e-mail is not coming from
a valid account (server), it deletes it. Our servers have also successfully
been able to block and eliminate a lot of SPAM. However, we are using
Windows 2003 servers using MailEnable as our e-mail server software. If
there is some assistance we can offer for e-mail hosting or anything else,
please let us know.
http://www.covenantdata.com ...Where data becomes information!
Robert Williams
Programmer / Web Developer / Network Administrator
Covenant Data Systems, Inc.
http://www.covenantdata.com
rwilliams at covenantdata.com
-----Original Message-----
From: redhat-list-bounces at redhat.com [mailto:redhat-list-bounces at redhat.com]
On Behalf Of Jessica Zhu
Sent: Tuesday, August 23, 2005 11:05 AM
To: General Red Hat Linux discussion list
Subject: Mail Attack
Hi,
It looks like we are experiencing the mail attack now.
In our maillog, we have a lot of User Unknown message like the following.
Aug 23 11:52:25 s1 sendmail[2110]: j7NFqPL02110:
<Oscard at mathforum.org>... User unknown
Aug 23 11:52:25 s1 sendmail[2110]: j7NFqPL02110: from=<>,
size=17601, class=0, nrcpts=0, proto=ESMTP, daemon=MTA,
relay=mail.vis-inc.net [66.77.28.202]
It looks like that all the from is <>, does anyone have the way to fight
against it.
Jessica
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