On Tue, Nov 26, 2002 at 11:48:10AM -0500, Noah L. Meyerhans wrote: > A particularly effective anti-spam tool that I've see in use is to block > mail claiming to be from a webmail provider (e.g. hotmail) that never > actually passed through a server controlled by that webmail provider. > Has anybody written such a filter for exim that can be run system-wide? > I want to do it in exim because I don't have a global procmail filter in > place and would rather not introduce one if I can get away with it.
Another solution is to use spamassassin which does this amongst many other tests. dman has a rather nice guide on his site, IIRC :) -rob
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