Status of blackholes.five-ten-sg.com: ALIVE

The "Fiveten" Blacklist (blackholes.five-ten-sg.com) was a combination anti-spam blacklist run by Carl Byington, publishing under the name of "510 Software Group." This blacklist has been available since at least February, 2001, and it appears to have been retired as of November, 2010.

As of November 11, 2010, any attempt to look up an entry on the blacklist results in output indicating that "blackholes.five-ten-sg.com has been retired." Meaning, the blacklist is no longer in operation.

I had previously written about this blacklist back in October, 2007, and my 2007-2008 DNSBL statistics project data showed that the blacklist may not be suitable for broad production use if one wishes to receive requested email messages.

November 15, 2010 Update: InBoxRevenge points out that the five-ten-sg.com domain no longer has DNS records, further proof that there's nothing left to query at this time.

November 22, 2010 Update: Looks like Fiveten is back.