RE: [cobalt-users] How to stop SPAM senders?

["Mark Jaggers" <mjaggers@xxxxxxxxxx>]

I tried the zone edit test and I get the following.  

OK, connected to 123.456.789.000...
< 220 www.xxxxx.com ESMTP Sendmail 8.10.2/8.10.2; Mon, 5 May 2003 19:57:54
-0500
> HELO edit.dnsvr.com
< 250 www.xxxxx.com Hello edit.dnsvr.com [64.21.143.22], pleased to meet you
> MAIL FROM:<test@xxxxxxxxxxx>
< 250 2.1.0 <test@xxxxxxxxxxx>... Sender ok
> RCPT TO:<test@xxxxxxxxxxxxx>
< 550 5.7.1 <test@xxxxxxxxxxxxx>... Relaying denied.  Please check your mail
first or restart your mail session.

So I would think that since it says relaying denied that is good.  But why
does it say Sender ok?

Mark


-----Original Message-----
From: Chris L [mailto:clathem@xxxxxxxxxxxxx] 
Sent: Monday, May 05, 2003 11:06 AM
To: cobalt-users@xxxxxxxxxxxxxxx
Subject: Re: [cobalt-users] How to stop SPAM senders?


> > What is the easiest way to determine how or who is sending spanm
> > through our server? We have gotten a report that someone is sending 
> > spam through our server but I am not sure how to stop them or how 
> > they are getting in.

You may  want to check the sites you are hosting and make certain that
anyone running a formmail script is using a "secure" formmail script. Its
very common to see these script being abused.

Just a side note you may want to test your SMTP server using a tool such as
the SMTP utility available at zoneedit: http://www.zoneedit.com/smtp.html
You can be certain of what sendmail will pass through using this utility.
Responses from your server are printed for you.

HTH,
Chris

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