On Tue, 2 Jan 2018, Mel Beckman wrote:

I woke up this morning to a barrage of complaints from users that our mail servers' outbound emails are 
bouncing due to a blacklisting. Sure enough, mxtoolbox.com<http://mxtoolbox.com> reports that 
rbl.iprange.net<http://rbl.iprange.net> has blacklisted us for more than a day. However, looking 
up our address on the rbl.iprange.net<http://rbl.iprange.net> lookup webpage shows we're NOT 
listed. But a check of the RBL's DNS shows that we are. Then I found this on the 
rbl.iprange.net<http://rbl.iprange.net> owner's website ():

"rbl.iprange.net<http://rbl.iprange.net> (is offline since 01-01-2018) please replace 
it with rbl.realtimeblacklist.com<http://rbl.realtimeblacklist.com>
rbl.iprange.net<http://rbl.iprange.net> will mark every ip address as listed to 
force removal of this server."

What the heck? I've tried contacting 
realtimeblacklisk.com<http://realtimeblacklisk.com>, but they're in the 
Netherlands and apparently fast asleep (in more ways than one, it seems).

If you do manage to get ahold of anyone there, you might suggest they read section 3.4 of

https://tools.ietf.org/html/draft-irtf-asrg-bcp-blacklists-10

There's a right way to shut down a DNSBL that's been tested and used by others. Listing the world is not the right way.

----------------------------------------------------------------------
 Jon Lewis, MCP :)           |  I route
                             |  therefore you are
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________

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