relay test

[Kristian Hermansen]

On 3/11/07, Stephen Adler <adler at stephenadler.com> wrote:
> I've setup a system which has a static IP address connected to the
> internet through my local comcast business Internet access service. I've
> gone through the motions of setting up sendmail to accept e-mail from IP
> addressed other than localhost. What I don't want to do is allow
> spammers to use my system to relay their e-mail. How do I test to make
> sure I haven't by accident turned on mail relay to be abused by spammers?

You could just netcat to it an try to relay manually, but i figure you
want a nice web interface to test it for you:
http://www.spamhelp.org/shopenrelay/

Also see this:
http://www.feep.net/sendmail/tutorial/anti-spam/no-relaying.html

And you should probably be using postfix rather than sendmail, but
hey...who cares :-)
-- 
Kristian Hermansen

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