Subdomained addresses like *.bulc.club are not factored

[ba66e77]

The Bulc Club service uses an @*.bulc.club domain, where the wildcard portion is created by the service user. The current implementation of the domain checking has no means to catch variants of *.bulc.club domains unless each variant is included in the static list.

[vboctor]

We can model it in the data files as *.bulc.club and update the code to handle such case by using a custom method rather than in_array() that can do string match or match subdomains against *.

Pull requests are welcome.