Er, it's rubbish, isn't it?
If it can't recognise the word 'Viiagra' as spam then there really isn't much hope. Plus I'm finding I have to add everything to the whitelist, however innocuous the posts I receive are.
Any tips on getting the best out of it?
I found the Keyword Filter so I'll try that. Disappointing that you'd have to add a Subject AND Body filter for the same word.
Easyspace were robbers but at least they had decent spam software.