Antisplog Pattern Matching - How to set allowed site domain names?

Hello,

is it possible to set the allowed names for site domain, when the user create a microsite with wpmu? I would like to exclude names like marketing, blog, logs etc. from temporary site domain names.

I have tried the Antisplog Pattern Matching settings, but getting a warning: "Please enter a valid PCRE Regular Expression with delimiters"

My Regular Expression is:

/(?:[\s]|^)(blog|logs|word|or|another)(?=[\s]|$)/gi

Best regards,
Damian