* Ben Finney ben@benfinney.id.au [2007-02-01 09:27:17 +1100]:
So there's not much we can do, unfortunately.
I thought for a while that the sender might be spoofing as an FSFE machine, in which case it can be rejected immediately once it gives its HELO; but that's not the case.
Does anyone know if it makes sense if I add
aso10.internetdsl.tpnet.pl (it was always this) to mailman's privacy options:
Filter rules to match against the headers of a message. (Details for header_filter_rules)
Best wishes, Matze