Re: [Exim] Reading the nameserver info from remote host

> I might even parse out links to images within a spam and look up the
> nameserver that has authority for thise images.

Don't use images, because some spammers like to refer to images on
innocent servers. Use anchor, form and area references. Indeed you will
be able to recognise quite some spam, an exception being "Nigeria" spam.
Note that complaints about spam will also contains those URLs, but
many spam scanners fail on spam that it forwarded e.g. to abuse desks.

Michael