"Nigel J. Andrews" <nandrews@investsystems.co.uk> writes:
> Doesn't that just force the delivering system to send the spam through your
> secondary server?
A 500-series error isn't supposed to be retried is it? But in any case,
I run the same filters on my secondary server. Both the IP and the HELO
checks would be quite useless if I used an MX that wouldn't support 'em.
regards, tom lane
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
