I have getting several spam messages each day, and virtually none of them are being identified by Akismet. I have my blog settings so that a commentor must have a previously approved comment, so the spam is held in queue until I mark it as spam. I just can't understand why Akismet isn't catching them without me having to manually flag them. They are obviously spam, since most are for sex-enhancing drugs.
Anything I can do to make Akismet work better?