Sorry, but that's the opposite of what I'm trying to do.   If I turn
Outlook's spam filter on then Outlook immediately regards anything with
the word "advertisement" in the Subject field as spam.   I quite
frequently send and receive emails which are about advertisements --
booking them in newspapers, for example, or replying to them.

What I want to know is if I can edit the list of words on which Outlook
filters emails to delete the word "advertisement".   As it is, all I
seem to be able to to do is either send all emails that Outlook thinks
are spam to a separate folder (or flag them up in a different colour)and
check them later, which is a bit of a waste of time.

It's a matter rather on my mind at the moment since I almost lost a
couple of very important emails last week -- the printers were adamant
that they'd sent me very urgent proof copies of some adverts that never
 seemed to hit my inbox and which I eventually discovered in my spam
folder because they'd been headed "Urgent Proofs:  Your advertisement
booked for ....".   In this instance all I can say is thank God for faxes.

Similarly, there are several words and phrases I'd like to add to both
the spam and adult filter lists -- "viagra", for example, or "barely
legal teen".

It's not a big deal, since I can perfectly easily turn Outlook's filters
off and use a third party product like Mailwasher or Spam Inspector,
where I can set my own filters.   I was just wondering if it is possible
to edit Outlook's filter list.   If someone can assure me it isn't then
I can stop wasting time trying to figure out how to do it (I hate
mysteries when it comes to computers).

Steve