Does ip-in-rdns-keyword-* only look for IPs delimited by periods, or does it
allow hyphens too?
The reason I'm asking is that I want to block senders with rDNS that look
similar to this:
So if it does look for hyphens as well as periods, I could block by using
-dyn as a keyword, which would be excellent.
But if it only looks for periods.I think I'm stuck :(
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