Also check whether the message body contains a listed JID (usually
mentioned as a contact address), rather than just using the JID list to
check the 'from' address of incoming stanzas.
Don't crash if the module isn't loaded for the 'to' domain. This would
otherwise happen for stanzas sent to subdomains (e.g., MUC messages).
Thanks to Nico Wellpott for reporting the bug and testing the fix.
Add a module that allows for filtering spam messages and subscription
requests based on lists of known spammer JIDs and/or URLs mentioned in
spam messages.
Thanks to Georg Lukas for his suggestions.
