On Mon, 20 Jun 2011 09:26:30 -0400 Steve Richardson <steverich.na...@gmail.com> wrote:
> Hi Jason, > > On Mon, Jun 20, 2011 at 9:06 AM, Jason Baugher > <ja...@thebaughers.com> wrote: > > Did everyone miss that the customer didn't request a /24, they > > requested a "/24s worth in even more dis-contiguous blocks". I can > > only think of one reason why a customer would specifically ask for > > that. They are concerned that they'll get blacklisted. They're > > hoping if they do, it will be a small block of many rather than one > > entire block. > > > > When customers make strange requests without giving a good > > explanation, I have to assume they're up to something. > > > > Jason > > They provided an explanation, describing how the IPs were going to be > used. Yes, part of it does have to do with being blocked, which > *definitely* concerns me. One thing they do say is that they need > several IPs per block to assign to their MTAs to handle such a large > amount of email (3 to 5 million per day). Being primarily focused on > layers 1 through 4, I don't have an incredible amount of experience > with high volume email server configuration, so I have no idea if they > are feeding me a line of BS or not. > > My feeling is that (paraphrasing here) "we might get blocked > occasionally" and "we need this many IPs on our MTAs because they > can't handle the load" are *not* legitimate reasons for requesting so > many addresses. If it helps you make your mind up, please give us the ranges you are going to give them and we'll pre-emptively block them.....