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



See if it's actively happening, log into your box with an SSH shell, and do a: tail -f /var/log/maillog and see who's causing it.. (tail -f means: follow the tail of the log, this lets you see realtime entries added to the logs)

Big fat chance there's a Formmail.pl on a site of one of your customers which is below v1.3, which will allow open relaying, just look for that file if you can't find the exact source (might want to try tail -f /var/log/httpd/access too to see if there's an insane amount of POST actions are made through a script)

At 10:41 AM 5/5/2003 -0500, you wrote:
I already had POP b4 SMTP turned on, and I am currently going through my
logs.  Is there anything I should look for?

Mark


-----Original Message-----
From: wcstaff [mailto:wcstaff@xxxxxxxxxxxx]
Sent: Monday, May 05, 2003 10:27 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.
>
> Suggestions would be great
>
> Mark
>
I would first turn on pop b4 SMTP mail relaying. Then they will not (or
at least it will limit) be able to send using your sendmial, without
verification. I would check the sendmail logs.

Tom

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