>...as I was saying... they have been obnoxious net neighbors for years
>although this capricious and inconsistent blocking of arbitrary email
>addresses is a new one on me.


I know numerous ISP and private email servers who automatically block any SMTP
from a known 'open relay' server.  There are several 'services' online which
monitor said open relays, and provide automatic blocking lists for these
sites.  http://maps.vix.com/rbl is one such service.

-jrp

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