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@xxxxxxxxxxxxxxxx -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] 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@xxxxxxxxxxxxx>... 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 -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
