On 7/29/2015 00:37, Matt Palmer wrote:

I suspect that http://www.spamhaus.org/query/ip/199.87.233.245 may be part of it (although it indicates a /21 blocked, not a /17).

And the removal instructions for that range (SBL) seems crystal clear to me, but long experience teaches that what is crystal clear to me is often to clear at all to spammers. What is it about Colorado? -- sed quis custodiet ipsos custodes? (Juvenal)