Default Offensive word list = too many false positives ?

Hello,

I'm trying at the moment the Sophos Email Appliances in real life for first day...this evening, i have checked my quarantine llist and found many emails blocked due to "offensive language" rule.

My problem is that it tells me the reason is that it has found the word "piss". But the real thing is that the email was containing the word "récépissé" (french word for "a receipt")...

is there a better word list available somewhere, shouldn't this be a more complex regex to match such a word ?

Thanks

Florent