Date: Mon, 13 Aug 2001 18:08:20 -0600 (CST) From: Ryan Thompson <ryan@sasknow.com> To: Dru <genisis@istar.ca> Cc: questions@FreeBSD.ORG Subject: Re: mailstats Message-ID: <Pine.BSF.4.21.0108131802560.17561-100000@ren.sasknow.com> In-Reply-To: <20010813193319.S754-100000@x1-6-00-50-ba-de-36-33.kico1.on.home.com>
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Dru wrote to questions@FreeBSD.ORG: > > Running FreeBSD 4.3-Release and noticed something new in my mailstats > output: > > Statistics from Tue Aug 7 20:02:01 2001 > M msgsfr bytes_from msgsto bytes_to msgsrej msgsdis Mailer > 3 14 57K 1405 3893K 1 0 local > 5 894 4695K 160 184K 2593 0 esmtp > 8 519 2365K 7 22K 2572 0 relay > ============================================================= > T 1427 7117K 1572 4099K 5166 0 > C 1427 1572 5166 > > I don't recall ever having a relay line before. Is this something I > should be concerned about? I haven't become a spam relay have I? Or is > this somehow DNS related? I seem to be getting a lot less emails on a > daily basis than I'm used to. If you have any remote users who send SMTP mail through your server, you're relaying. If you do have a spam relay, or someone has found a way to send messages through your system, you're relaying. Though, I kind of doubt the latter, as only 7 messages were sent in the report interval, which is a very small percentage of your mail traffic. When spammers find a relay, they typically hose it with messages. To rule out the possibility of spam relaying altogether, read up on sendmail configuration on www.sendmail.org, and make sure that you have the appropriate bits in your sendmail.cf, access database, etc. If you're curious about the sender/recipient/length of messages going through your system, page through /var/log/maillog, zcat /var/log/maillog*, and use some grep -v filters to get rid of repetitive lines. - Ryan > TIA, > > Dru > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > -- Ryan Thompson <ryan@sasknow.com> Network Administrator, Accounts SaskNow Technologies - http://www.sasknow.com #106-380 3120 8th St E - Saskatoon, SK - S7H 0W2 Tel: 306-664-3600 Fax: 306-664-1161 Saskatoon Toll-Free: 877-727-5669 (877-SASKNOW) North America To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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