[cobalt-users] Re: Can a Spammer Monopolize a Mailing List on Raq4

[Bruce Timberlake <bruce@xxxxxxxxxx>]

> I have a mailing list set up for one of my clients. On their
> website, I created a form that posts to a CGI that only delivers 
> email to the list at majordomo@xxxxxxxxxxxxxxx The email address
> is hard coded into the cgi.
>
> This is so they can have an automatic signup for the list on their
> website. There have been many entries from  acuwin.org,
> luckyemail.org etc. and many more of the same type of postings to 
> the list every month. I already checked  arin.net and almost all of
> the domains are owned by one person (in canada).
>
> Is there any way that this person can utilize this list as a bounce
> point to send email or otherwise compromise my box?

Without seeing the actual CGI, it's hard to say. But almost anything 
is possible.

Does /var/log/maillog show outgoing mail traffic indicative of a 
spammer takeover?