Nigerian Scam Letters on RepRap forum

Just got an email notification that I had a private message on this forum. The message was from a Miss Zeinab Kouta Tangara of the nation of Congo, who had a wonderful business oportunity that would pay me millions and all I had to do was front several thousand.

It was posted as an anonymous post. Is there a way that this kind of spam could be blocked from the forum?

That's been discussed here:
[forums.reprap.org]
and the spammer's account was deleted.

If it becomes a recurring problem, we'll start using one of these anti-spam modules for our forum software.
[www.phorum.org]