On Fri, Jan 02, 2009 at 11:42:17PM +0800, William Kisman wrote:
> Hello, I have searched around trying to understand the postfix log message
> because I found that my server is being abused by the spammer which the
> spammer sending me the message with the sender as my email.
Email sender addresses are easily forged. Nothing new here.
> I have a form
> that allow user to send message to their friends about my website link, but
> when I checked the apache log files, I did not see the spammer abusing that
> dynamic link.
>
> What are the possibilities that the spammer could use my mail server to spam
> ?
How is this related to receiving email with forged sender addresses? Do
check the headers of the forged email, if it arrived from outside, no
point in checking web logs, ....
> I have googled on how to understand the postfix log file but not much useful
> information that I got, do you know any good one ?
First take the time to understand that email envelope and sender
information is unauthenticated and subject to forgery.
--
Viktor.
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