[Mimedefang] Process SPF checking for certain recipient domains

[Jon Rowlan]

Thanks Ged.

That is helpful although for some odd reason I feel very much told off
:-)

I should have added that I checked the sender domains and they all had
SPF in place which is why I was tempted to try using the SPF mechanism.

I have tried using hosts.deny but that doesn't seem to work for me,
iptables may well be something to look at as you say.

jON