On Sunday 18 June 2006 16:17, Richard Clayton took the opportunity to write:
> In message <000801c692ae$111743e0$6b01a8c0@keithlaptop>, Keith Martin
> <Keith.Martin@???> writes
>
> >Should another email come in that matches anything on the current black
> >list, then it is blocked and the details (IP etc, as above) added to the
> > top of the list (the details are added as a new record as maybe some part
> > has changed - this allows the list to adapt to variations in the spam
> > attempt)
>
> If any of your email comes via ISP "smarthosts" then your heuristic will
> (unwisely) block further legitimate email that happens to traverse the
> same smarthost...
A temporary blacklisting that causes a 450 status code rather than a 550
should be pretty safe ... unless the smarthost continously sends spam, but in
that case they have a serious problem.
--
Magnus Holmgren holmgren@???
(No Cc of list mail needed, thanks)
