Spamhaus is the worst for filtering mails, I used to have their DNS based block list as a factor for my incoming mail spa filtering, but they started to say a whole bunch of other mail servers were sending spam.

I had to remove that factor from my incoming mail filters, as it wasn't effective anyway. (For filtering incoming mail, the filter that seems the most effective at blocking spammers is just sleeping for 2 seconds at the start of a connection, and then blocking any client that has send any bytes to the server, if they haven't send any bytes, just send the hello message)

Hosts your teamspeak server on a non standard port, if an domain is not defined by tsdns or SRV records, it falls back to the A record of your domain and the default port

Also, use SRV records instead of TSDNS, it has the same features, but follows common standards