Brian Ipsen wrote:
> Consider the following headers:
> Received: from adsl-66-159-202-147.dslextreme.com (HELO andebakken.dk) 
> (66.159.202.147)
> From: "michael" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
>
> The spammer uses my own email address as sender to try to inject spam into
> my system

For a while this was a large source of my spam.  So I now reject it in
my MTA.  That is really the better place to deal with this.  I know
this is the SA list but there is really no need to deal with this
problem in SA as it should never have gotten this far.

> Is there any way of avoiding this ?? Yes, I know I can bounce them in my
> badmailfrom file in qmail... but is there another way (not that I often send
> mail to myself, but I had hoped there was a more intelligent way to specify,
> that mails from the outside couldn't be sent into my system, claiming to be
> from my own domain)??

I am not familiar with qmail so I am not sure what you are asking
exactly.  But if you can reject it there why wouldn't you?  I use
postfix and so my configuration to reject mail from a spoofed myself
would not be useful to you.  But that is my recommendation.  Reject it
as early as possible, it can't be a false positive, and don't worry
about trying to handle it in SA.

Bob


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