[TriLUG] Why the big boys block mail from dynamic IPs

[Christopher L Merrill]

Ken Mink wrote:
> Well, it turns out I had made a small config mistake and I
> was open to relaying from .nc.rr.com. Some spam bot inside nc.rr.com had
> found me and was pumping mail through.

Would you mind sharing the mistake?  I'd like to make sure I
haven't done the same :)


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