Validating is a lot of work, but you have to do it. I know there are lots of blocks with RBL problems. Some spammers make so much money, they easily afford to buy small blocks , abuse them to make money, buy more blocks and put the olds up for sale. Careful price is rarely a tell about a bad block. Only the cost of their first block is their initial sunk cost, as they cycle through blocks. Thank You Bob Evans CTO
Indeed.
Let this be a lesson: when purchasing blocks, one MUST do their due diligence. Check the RBLs, senderbase, previous owner reputation, etc. before buying.
Caveat emptor.
On 3/11/17 3:13 PM, Martin Hannigan wrote:
Which broker did you use fot the transaction?
Did you get a discount for knowingly accepting a dirty block or is this a surprise?
Are folks asking for warranties on acquired addresses these days?
Cheers,
-M<
Best,
-M<
On Fri, Mar 10, 2017 at 12:11 Pete Baldwin <pete@tccmail.ca> wrote:
Hi All,
Hopefully this is not taken in bad taste. Our organization purchased some IP space last year (163.182.192.0/18 to be specific), and it appears that this block must have been used for less-than-admirable purposes in the past.
We have been trying to clean up the reputation where possible, and we do not appear to be on any blacklists, but we do appear to be blocked from a lot of networks across the US/Canada. I am noticing a lot of name servers blocking our requests, many web servers, gaming servers, mail etc.
This is a transition block for us to move towards v6 everywhere, but we have many systems that will need to rely on this block of space for some time to come.
We are a small rural co-op ISP in Ontario, and I am just writing this email as an extra plea so that if you happen to run a network that has this entire range on your naughty list, we would appreciate you giving it another chance. I can be contacted on or off list, thanks.
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Pete Baldwin Tuckersmith Communications (P) 519-565-2400 (C) 519-441-7383