I was wondering...
I didn't look at the source code for the SpamCopURI or the SA 3.0 plugin but I guess it just looks for URI's within the messages and issues a DNS query to the configured SURBLs for every different canonicalized domain name... is it?
What would happen if a spammer intentionally starts putting hundreds of different invisible random URIs within the message trying to DoS SURBL?
Does the SA plugins check for this condition? Or have a limit as to how many SURBL queries will it issue for a given message?
TIA