If banning his IP address or range doens't work (like he finds another way to post) then you might not really lock him out, but redirect these 'suspicious' orders to a seperate 'box' that you can check on later.

More like a spam-filter.

This will make him think his posts worked (Fool the fool) while your real orders will be seperated from the trash.

Q: Why did the Perlmonk cross the road?
A: He wanted to escape the match.

In reply to Re: Unique User Logging and Lock Out by Vennis
in thread Unique User Logging and Lock Out by awohld

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