Sorry for the slow reply, alcimedes. The email address I have registered with AppleNova doesn't seem to filter anything at all, so the problem is probably not a spam filter issue at my end.
Not the end of the world by any means, but I was starting to really scratch my head.
Especially as there wasn't a mention of the problem by anyone else. Hope it's not a complicated thing to fix. You guys do a great job keeping this site up and running. It seems to have better availability and reliability than some of the really big websites I use (
www.photo.net for example).